Supply and exhaust system for the pool. Preparation of a pool ventilation project in a private house

28.08.202327.05.2017

One of the main conditions for organizing a comfortable microclimate in an indoor pool is the ventilation system. It is she who will maintain the humidity corresponding to the current standards and ensure the supply of fresh air.

Why do you need pool ventilation?

Swimming pool in the house - ventilation is calculated at the design stage

To answer this question, you need to understand what functions are assigned to ventilation. One of the properties inherent in water is evaporation. It evaporates from everywhere: from a glass, puddle, sea, pool capacity. And the larger the surface area and temperature of the water, the more evaporation. All these natural processes without adequate ventilation can harm the person and the room in which the pool is located.

Comfortable for well-being is considered humidity at the level of 30-60%. At high humidity of 80-95% and the temperature of the pool room (29-31°C), it becomes difficult for a person to breathe, headache, fatigue appear, even consciousness may become clouded. In people with chronic diseases of the cardiovascular system, seizures were noted. And frequent stay in a room with such parameters provokes rheumatic diseases, tuberculosis, kidney disease.

Thus, a pool ventilation system is mandatory, which would be responsible for absorption, condensation and assimilation. The more intense the change of stale air to fresh air, the faster the drying of the air masses.

Features of the ventilation device in the premises of pools

The temperature of air and water should differ by a maximum of 2 degrees. So, for pools located in private houses, the water temperature is set at 28 ° C. The air temperature should be 29-30°C. If there is an inverse ratio of temperatures, then intensive evaporation occurs. Therefore, in the ventilation system, heating of the supply air is provided. For a swimming pool, the water temperature is within 26-31°C, for a pool in a bath with hot water 35°C, with cold water 15°C.
The most important parameter that determines the microclimate of the pool is humidity. As mentioned above, high humidity adversely affects people's health, as well as structural elements, interior decoration. Moisture that exceeds the permissible threshold leads to the formation of condensate, which over time contributes to the development of fungi, mold, and rust. Humidity is directly dependent on air temperature, so its decrease by 1 degree, increases humidity by 3.5%.
Limit values of relative humidity for indoor swimming pools in winter - 45%. For summer, a higher rate is allowed - 55%.
Strict requirements are placed on the movement of air. Ventilation for the pool in the cottage must have continuous air exchange. It must not be turned off day or night, or at any time of the year, otherwise condensation cannot be avoided. The system must maintain a speed of air masses of about 20 cm per second.
The presence of chlorine in the air should be maintained at a level of 0.1 ml per 1 cubic meter. m of air.

Important! The ventilation requirements of the pool located in the house include the mandatory absorption of exhaust air by 13% more than fresh air is supplied. This prevents moisture from spreading to other areas of the house. Exceeding this value leads to the formation of drafts.

In addition, the pool ventilation system must be autonomous, independent of the ventilation of the house itself. And connecting the system to an uninterruptible power supply will ensure its continuous operation, independent of the presence of voltage in the network.

Supply and exhaust ventilation for the pool

According to experts, it is supply and exhaust ventilation that is suitable for rooms with high humidity. It is this ventilation that is able to provide high-quality air exchange, in which there will be a continuous supply of fresh air, and the timely removal of excess moisture.

Creating a comfortable microclimate that meets all the standards for constructing ventilation systems in the pool area, possibly by building one of the popular schemes, namely: a system with a supply unit, an exhaust fan, an autonomously operating air dryer or supply and exhaust ventilation for a pool with recuperation.

The composition of this system with recovery includes the following equipment:

supply and exhaust fans;
heat exchanger with bypass;
intake and exhaust filters;
electric heater; Control block;
condensate tray.

The presence of a heat exchanger in the circuit allows you to minimize heat loss. Recuperators are represented by several types. The plate-type heat exchanger is considered the most suitable for the ventilation system of pools. It is a heat exchanger through which the supply and exhaust air passes. In this case, the inflow is heated by the heat of the outgoing masses.

Advantages of the supply and exhaust ventilation system with a heat exchanger

It is possible to adjust the operating parameters (switching from “working” mode to “standby” and vice versa), but this can be useful when, for example, the owners leave for a while, and no one in the house controls the operation of the system. The general adjustment of the system is carried out once, during commissioning.
The equipment works in a common system, is controlled using a conventional control panel, all indicators can be displayed on a computer screen for control.
Does not require additional equipment for warm and cold seasons.
Enormous energy savings due to the operation of the heat exchanger, which is especially important during continuous operation of the system.

Calculation of the air exchange rate in the pool room

L = Gw/

L - desired volume (m3/h) of outdoor air

Gw – evaporation rate (g/h)

r – specific air density (kg/m3)

Xj - humidity of the air flow from the outside (g / kg)

Xu – indoor air humidity (g/kg)

Do-it-yourself ventilation for the pool: the sequence of work

First, we start with the selection of equipment that will be built into the ventilation scheme.
Secondly, we calculate the cross-section of pipes, which is important for the correct supply and removal of air.
Thirdly, we have supply and exhaust pipes. Since moist and warm air rises, we place the hood near the ceiling. The inflow pipe, according to all the rules for building a system, must be placed in the lower part of the room. But in the pool, this position will create discomfort. Therefore, structurally, this is solved as follows: the entrance to the room is located at the bottom, then it is blown up along the duct, where pipes with ventilation grilles are located around the entire perimeter of the room, through which fresh air is supplied. For a good rate of recirculation of air masses, large gratings are installed.
Fourthly, in order to maintain good air exchange, a deflector is installed at the end of the exhaust pipe, sucking in exhausted moist air and throwing it into the atmosphere through special channels.
Fifthly, it is desirable to provide a device that is not included in the ventilation system, but greatly facilitates its work. These are special blinds that cover the pool when it is not in use. They perform many useful functions - protection from pollution, heat preservation, for ventilation - reducing evaporation and moisture release.

More detailed information about the equipment, the correctness of calculations, the location and other nuances of constructing ventilation in the pool room can be obtained from specialized specialists. Of course, the price will also play an important role, but before making a decision, you need to calculate "a few steps ahead." And in appearance, expensive supply and exhaust ventilation with recuperation, in fact, turns out to be more economical and more profitable than other schemes.

Recently, the arrangement of your own pool in a private house or cottage is not an indicator of incredible luxury. Modern technologies make it possible to install such a water tank indoors without huge costs and investments. In order for the structure to last for a long time, and for a comfortable microclimate to be present in the house, you need to take care of the ventilation of the pool in advance.

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general information

Each pool is a huge container of water that constantly evaporates and condenses on the ceiling, window openings or wall structures. But where there is water, there is also a fungus or mold.

Moreover, the impact of increased moisture negatively affects the durability of the pool itself, because it leads to the destruction of finishing materials and other deformation consequences. Among them:

The occurrence of rust on metal products.
The development of fungal microorganisms.
Swelling and destruction of plastered surfaces.
The appearance of spots on the painted parts.
Deterioration of the insulation of conductive materials, which increases the likelihood of electric shock.

In connection with the above points, the arrangement of the ventilation of the pool in the cottage is the most important stage, which must be taken with increased responsibility. Such equipment will save the room from various deformation processes, as well as extend the life of the tank itself.

With good ventilation in the interior there will always be a certain indicator of humidity. This unit indicates the volume of water vapor per unit volume of air. If the humidity exceeds the permissible level, it becomes difficult to breathe in the room.

However, if the air is too dry, this also entails unpleasant phenomena. Therefore, it is important to achieve the perfect balance, guided by the mode of operation of the structure, the climatic factor and the individual preferences of the owners of the premises. Future calculation should be carried out taking into account the temperature of air and water.

Pool ventilation

Indoor microclimate

In the construction industry, there is such a thing as saturation moisture. This indicator characterizes the volume of water that is taken in by air at a specific temperature regime. If the temperature starts to rise, it raises the saturation humidity level. If the allowable indicator is exceeded, the excess begins to turn into condensate and settle on wall structures, glass or ceiling.

When arranging ventilation in the pool of a private house, it is necessary to get rid of excess evaporation of moisture, observing a specific balance between the temperature of water and air.

If the volume of evaporated moisture is relatively small, then there is no need to buy powerful ventilation systems. If the temperature of water and air is kept at the same level, the saturation point will be comparable to 100% humidity.

But to ensure a comfortable microclimate in a room with a pool, it is recommended to adhere to humidity from 50 to 65%. This requires the installation of a mechanical ventilation system.

There is another way to reduce the level of evaporation. It is enough to cover the surface of the water with special metal elements, like blinds. As you know, closed water practically does not go into the evaporation stage and does not cool. If we compare an outdoor pool, then about two and a half liters of liquid can evaporate in it in an hour. In the closed type, these figures are 1.2 liters per part. As a result, this approach guarantees large savings in resources.

Reducing the humidity in the room

Even the most powerful pool ventilation project is not able to completely cope with the problem of high humidity in the room. However, it is quite possible to reduce the level of evaporation, since there are many tools and ventilation equipment for this. Recently, supply and exhaust ventilation for the pool has been in great demand, which is combined with the installation of special dehumidifiers.

Once in the dehumidifier, the air is heated to the dew point, which leads to moisture condensation. Then it is additionally heated and returned back, but already in its pure form, without water particles. Such systems are relevant for cottages in which it is impossible to consider the option of installing an intake-blowing system. A hygrostat is installed in the design, which causes the compressor to start at certain performance indicators. If the moisture level drops, the hygrostat stops the compressor while the ventilation blades continue to rotate.

Commercially available condensing dryers divided into several types:

1. Wall mounted. They are located in buildings where there are already finishing works.
2. Wall mounted. In such dehumidifiers, all working elements are securely hidden in a separate room, and in the space with a pool there is only a fence grate. It is necessary to start planning such a scheme long before the arrangement of the water tank.
3. Stationary, non-removable. Such installations are characterized by the highest power and require additional space. Often they are part of the supply and exhaust ventilation system in large sports centers. Stationary models support mixing 1/5 of the air volume, and if equipped with a duct heater, this will allow you to equip a complete ventilation system at home.

Moisture assimilation

In search of effective ventilation systems in the pool, schemes and designs, one cannot ignore the method of assimilation of moisture in the pool. It consists in using the natural property of air to absorb water vapor. The technology allows you to lay a 5-fold air exchange in one hour of work.

In temperate latitudes and in homes with small pools, a conventional ventilation system is sufficient. But if we are talking about large water tanks in gyms and entertainment complexes, then a multifunctional dehumidifier must be additionally equipped here.

The indisputable advantage of moisture assimilation is the effective elimination of an unpleasant odor that appears due to high humidity. As for the cons, there are few of them. The most unpleasant moment is the dependence on weather conditions, because if the surrounding air is too humid, it will not be able to absorb condensate from the pool room.

But in most cases, this scheme justifies itself and outperforms other solutions. Another disadvantage of assimilation is the need to warm the supply air. The procedure is especially necessary during the cold period, when the heating process requires a lot of electricity.

Also, engineers practice the combined method of draining the pool, which is in demand for large areas and pools with a high frequency of visits. In this case, it is necessary to combine a dehumidifier and a forced ventilation system.

At the same time, the type of equipment can be independent or form an indispensable part of the overall system that affects the microclimate. Combined options are expensive options and justify themselves only on an area of 50 square meters.

How to reduce the humidity in the pool room? Pool ventilation

Maintaining the temperature

To avoid excessive moisture release, at the ventilation design stage, it is necessary to achieve such indicators at which the temperature in the building with a pool exceeds the ambient temperature.

This is possible only if there is a powerful heating system that provides heating of the air to optimal performance. But ventilation is not able to heat the building, so air heating may be ineffective. It justifies itself only with the arrangement of additional installations.

If the building is characterized by good glazing, and the pool is located in a southern area, you can not do without arranging a powerful air conditioning system. As for large pools that are frequently visited, natural ventilation systems may not be useful in them. In this case, forced methods of moving air are used, demonstrating the following advantages:

Maintaining a stable temperature regime.
Constant supply of fresh air.
Combat bad odor.

Swimming pool in a private house. Heating system in the pool, ventilation and water heating.

Supply and exhaust scheme

Considering the best types of ventilation systems for a pool, one cannot ignore the example of a supply and exhaust scheme.

It has the following advantages:

Stable supply of fresh air.
Fight against residual moisture in the atmosphere.

The device is equipped with a special dehumidifier, and any heat is instantly removed outside. In addition, such a system is characterized by autonomy and can work without exposure to air from other rooms. The ventilation ducts are made on the basis of moisture-resistant materials, and the equipment is controlled by advanced automation. As a result, this allows you to maintain a stable temperature regime and carry out the mixing of clean air.

Before entering the room, the outdoor air is carefully filtered, cooled or heated. It also changes its moisture content.

Proper system design in the cottage

In order for the cottage pool to justify itself, you need to remember a few features.

First of all, you should make sure that the temperature regime is kept within 30-32 degrees Celsius, and the outflow of air prevails over the inflow by 0.5 times. Noise indicators cannot exceed 60 decibels, while there should not be more than two people in the pool at the same time.

In order for the design and installation of an air vent system to be as successful as possible, a lot of rules and recommendations must be taken into account. You should visit a special site where you can calculate the required parameters online. Planning a ventilation system will be successful only after consulting with an expert, as well as taking into account several important points.

As you know, air with high humidity and high temperature is constantly directed upwards, and when it collides with a cool surface, it turns into condensate. In this regard, ventilation equipment can be placed both in the adjacent building and under the bowl, around it or on top. In many cases, such systems are placed around the pool or in two of its sides, which causes the exhaust moist air to be quickly expelled.

To ensure a comfortable microclimate in a building with a swimming pool, first of all drafts must be prevented. To do this, it is enough to equalize the volumes of supply and exhaust air. In a place where visitors are located, the air should not move faster than a given speed. Often, the intensity of movements is reduced using various schemes or specific grids.

Air channel it is better to place near the windows. It is also desirable that it be made of a good heat-conducting material. Under the influence of dry air, any condensate will cease to settle on the glass, and upon contact with the window, the warm air will begin to cool.

Drawer box installed directly under the ceiling where intense accumulation of moisture and heat is noticed. Otherwise, the air will quickly come out. If there are suspended ceilings in the building, you need to think over the ventilation system in advance. If this is not done, an area with a high moisture content will appear above them.

A properly equipped air exchange system in a room with a pool is the key to successful and long-term operation of such a water tank.

Therefore, in order to extend the life of the pool and protect it from premature deformations, it is important to design and install ventilation equipment in time.

The pool is a special place. It constantly evaporates moisture from air and water. As a consequence, this leads to an increased level of humidity.

Properly organized pool ventilation will allow you to control humidity and ensure the flow of oxygen, protect the room from mold and corrosion. Visitors will feel comfortable, the risk of fainting and dizziness will be excluded.

If you neglect the installation of ventilation, the pool will quickly become unusable. As a rule, the area of the water mirror in the pools is quite large, about 10-20 m in length. Moisture evaporates continuously and settles everywhere. This applies not only to floors, walls and ceilings, but also electrical appliances and metal parts. If you do not take care of the installation of ventilation, the effect of condensate will adversely affect the materials.

What is fraught with refusal of air exchange:

The spread of fungus on the walls.
Corrosion of metals.
Damage to lighting fixtures.
Glass damage (especially with a large glazing area).
Swelling of plastered surfaces.
Risk of electric shock due to increased conductivity of insulating materials.
Tarnishing of painted materials.

It should be borne in mind that high levels of humidity and lack of fresh air have a negative impact on human health. Among the most common side effects are:

Dizziness.
Fainting state.
Nausea.
Difficulty breathing.
visual hallucinations.

Also note that such an environment is a paradise for the reproduction of infectious bacteria. In addition, the risk of developing allergic reactions increases.

When installing ventilation, all of these problems are solved. The microclimate is leveling out, visitors feel comfortable, and the pool building is not destroyed from the inside.

Ventilation tasks

The main tasks should be called the regulation of the level of humidity and the organization of the influx of fresh air. Also, the arrangement of ventilation systems helps to avoid the appearance of musty odors and the development of infectious bacteria. Ventilation preserves the health of visitors and extends the life of equipment, electrical appliances and lighting lamps used in the room.

Features of the ventilation device in pools

It is necessary to remember the norms of air and water parameters. They are listed below:

2 ° C - this is how the water and air temperatures should differ. Otherwise, evaporation will be too intense. For example, if the temperature in the hall is 30°C, then the water should not exceed 28°C. You must also take into account the temperature of the outside air, if it is mixed.
45-55% - the limit of indications of humid air. The minimum indicator is relevant for the winter time, and the maximum for the summer season.
20 cm / s - this is the optimal speed of air movement.
0.1 ml / m³ - requirements for the level of chlorine in the air.

Any room in which the pool is located is quite specific, mainly due to the abundance of water vapor. As you know, moisture settles in the form of condensate on colder surfaces, as a result of which corrosion processes develop, fungus and decay appear. In addition, windows in this room fog up, and moisture settles on almost everything that is located there. To avoid such troubles, you will need high-quality ventilation of the pool. About what it is, why it is needed and how it is equipped, and will be discussed in today's article.

Why might swimming pools be ventilated?

Due to the special characteristics of the air and water in the room where the swimming pool is located, the moisture evaporates safely from the bowl, and it is not possible to interfere with this process. Settling on various kinds of structural elements or simply interior items, moisture inevitably leads to their deterioration. However, if you correctly design and equip the ventilation system, it will effectively remove all air fumes to the street.

Another disadvantage of the abundance of water vapor in the room is that people who swim in the pool simply experience discomfort. Moreover, humid air adversely affects the respiratory system, as well as the psychological state of a person as a whole. And, finally, the third reason why ventilation is mandatory in this case is the inevitable damage to all electronic equipment in the pool. Tellingly, even ceiling lighting fixtures protected by glass come into disrepair.

To make the ventilation system more efficient, it is usually additionally equipped with air dryers. By the way, there are many ventilation systems themselves, but only two are the most popular among them:

with separation of outflow/inflow of air;
supply and exhaust (with the option of heat recovery).

Let's take a closer look at each of these options.

Option one. With air outlet/inlet separation

This kind of ventilation system is classified as separate, in this case the air enters and exits through separate system elements. If we talk about the cost, then the equipment for such ventilation is much cheaper (when compared with the option described in the next paragraph of the article), however, during further operation, it will necessarily require considerable expenses for itself. In addition, the dimensions of the separate ventilation system are quite large, therefore, it is very inconvenient to use it (especially in small rooms).

Note! The supply ventilation of the pool has one very important distinguishing feature - the fresh air in it is supplied to the room separately from the parallel air outlet, which has had time to humidify, to the street.

We also note that such ventilation systems are often equipped at the stage of pool construction. The role of the main element in this case is the fan, which is mounted in the exhaust ducts.

Speaking specifically about the influx of fresh air, it is carried out through such devices:

a control unit designed to support the volume of supplied air and temperature conditions;
an air intake device, on which there is a valve that does not let cold street air into the room in cases where the system is turned off;
a fan with which air is pumped;
cleaning filter required to clean the incoming air;
a heating device with which this incoming air is heated.

For a more detailed acquaintance with this issue, we recommend that you watch the thematic video below.

Video - About ventilation in pools

Option two. Supply and exhaust (with heat recovery function)

If we talk about this type of exhaust ventilation system, then it functions in a single unit. Tellingly, such a system will require serious costs even during the purchase of all the equipment required for it, however, during further operation you will encounter a pleasant surprise - noticeable savings (much more than the option described above).

Let's get acquainted with the main advantages of using such systems.

First of all, it does not require too much space to install it. All the components necessary for the operation of the system are located in one block, therefore, the whole complex turns out to be very oversized when compared with ventilation, in which the elements are separated. An ideal option for pools, the area of \u200b\u200bwhich is insignificant, which means that it is most often used in private country houses.
Another advantage is that during operation the system consumes not so much electricity, since it (as the name suggests) has a heat exchanger. Thanks to this device, you can save from 50 to 40 percent of electricity, since the supply air is heated by the exhaust gas, but it does not mix with it. In other words, the temperature regime in the room is kept at the same level only due to its thermal reserve. And this, in turn, reduces the required power of the motor used by about two or two and a half times.

As for the design of the supply and exhaust system, it includes the following important elements:

inlet air heater;
fan (still the same supply and exhaust);
thermal recuperator;
cleaning filter required to purify fresh air;
the last element is a double valve, which shuts off the cold air supply if the system is turned off.

We also note that the system described above, equipped with a heat recuperator, is quite often also equipped with the function of automatically adjusting temperature indicators, as well as the values of the amount of water vapor. Moreover, in addition, this pool ventilation can be equipped with devices that distribute heated air to other rooms; Another example of a "bonus" device is the dehumidifier.

What about automated ventilation systems?

Automatic systems are able to control the entire ventilation system, as well as adjust its functions. Below are the main points that automated systems perform.

Direct connection of the ventilation system with the so-called "smart home" system.
Maintaining temperature and humidity indicators of air at the required level, monitoring the performance of the ventilation system itself.
Ensuring protection (both the system as a whole and its individual components), preventing water from freezing in water heaters, reducing voltage, and so on.
Notification of all problems and emergencies that occur in the system.
Tracking the sequence of all operations that occur in the system.

As you can see, there are really a lot of functions, and therefore automated systems fully justify their inflated cost.

Regulatory requirements

Any ventilation system must be selected in accordance with certain indicators that must be observed in the premises where the pools are located. If you intend to provide the most safe and comfortable conditions in the said room, then you must adhere to some numbers.

The maximum air humidity should be 65 percent.
The air exchange rate, in accordance with regulatory requirements, is 80 cubic meters per hour for each person who is in the room. Although when drawing up a project, as a rule, they are not based on this indicator, but on the calculated value.
The maximum difference between the temperature indicators of water and air should be no more than 20 degrees (and exclusively in favor of air).
The gas flow that exits the ventilation system must have a speed of no more than 20 meters per second. If the speed is greater, then drafts are formed that are felt by the skin.
Finally, the water temperature, in accordance with the same standards, should be less than 32 degrees Celsius.

We also note that the regulatory requirements allow for a difference between the volumes of outgoing / incoming air, but no more? total air exchange rate. Although in this case, you must also take into account the speed at which the gas flow moves. When designing, take into account the fact that the noise level in a given room is a maximum of 60 decibels.

Note! It is quite obvious that the natural ventilation system is unable to provide such indicators in the room, and therefore, if there is a pool, it (the room) must be equipped with forced ventilation.

Features of drafting a ventilation system

If you are engaged in drafting a ventilation system (regardless of what type it is planned), then you must take into account the functional parameters of the entire structure - this will ensure the specified conditions; also do not forget about the negative factors affecting the structural elements. Perhaps the most important substance, without which no pool ventilation can do, is condensate. If it accumulates on the walls of the ventilation shaft, it will inevitably lead to corrosive processes, as well as equipment failure. To avoid this, it is necessary to insulate the shaft and install electrically heated valves. In addition, be sure to supplement the shaft with a tray into which accumulated moisture would drain.

Any ventilation system (whatever its size) must be able to operate at a lower capacity in order to save electricity in the event of a pool downtime. In turn, you must equip the system with a device of higher power, so that the ventilation can successfully cope with everything in the presence of a large number of people in the pool. Of course, all these additions are not mandatory, but thanks to them, electricity is saved during continuous operation, but the efficiency of the entire system remains at the same level. This addition is especially relevant for country houses, where the equipment is not used as often as, for example, in public swimming pools.

But the most important thing that you should consider during the design is the area of the room, the presence / absence of heating, air flow rates, as well as the air exchange rate. As for the supply and exhaust system, it can be considered universal, since it is able to solve all these problems at once. It includes various structural elements, including fans, filtration devices or, say, a heater. Because, in fact, she successfully copes with all tasks.

Note! The ventilation system of the pool should be equipped separately from the general house ventilation. Also note that in order to reduce the evaporation of moisture from the bowl, it can be curtained during downtime.

We develop a ventilation system project

As noted earlier, during the design of ventilation, an air humidity index of about 65 percent is taken into account, but in reality this indicator usually decreases by 15 or even 20 percent. The reason for this is extremely simple - the so-called tactile sensation of humidity. So, if the system is equipped correctly and provides the required humidity, then a feeling of discomfort and condensation can still be noticed. As a result, the functional characteristics of the system are adjusted. The phenomena described above then disappear, but the humidity at the same time no longer meets the regulatory requirements.

When designing a project, also consider the air flow. There are many formulas and special tables that can help determine the required air exchange at the current temperature and area of the pool bowl.

Here are the main characteristics that should be taken into account during the calculations:

air temperature under the ceiling (due to the fact that warm air weighs less, and therefore always tends to rise);
the area of the water space;
the number of people visiting the pool at the same time (on average);
overall dimensions of bypass tracks;
air temperature indicator;
average outdoor temperature in summer/winter;
temperature indicator of water.

If you are designing the ventilation of the pool yourself, then without fail make the following calculations.

Determine how much heat comes from people, water in the thicket, sunlight, lighting fixtures and, in fact, paths.
Determine how much moisture comes from swimmers, paths and water.
Calculate the air exchange, taking into account the standard indicator.

In accordance with the standards of the German Society of Engineers, the latter indicator must be calculated from the water area, the total humidity indicator and the water temperature. In addition, the functional features of the room should be taken into account. The calculation formula looks something like this (in kilograms per hour):

e*F*РВ-PL = W.

Let's take a look at what each indicator means:

F denotes the total water area in square meters;
PL is the vapor pressure in the case of given humidity/temperature values;
РВ is all the same steam pressure, that's only for given parameters of water in the bowl;
finally, e is the evaporation index, which determines the functional features of the design.

The last indicator depends on the type of pool. So, if the structure is covered with a film, then e will be 0.5; if it has water slides, then 35; if the water is static, then 5; if we are talking about a public pool, then about 20; finally, if the bowl is small and attended by an average number of people, then 15.

Note! It is obvious that the humidity in the street varies depending on the specific time of the year. Professionals recommend taking the average value (it is 9 grams per kilogram), since its change with each subsequent season is not too significant.

We also note that directly during the arrangement of the ventilation system, you must insulate and seal each of the air ducts without fail. The air flow must not be directed towards the water surface. If the pool ventilation is small, it can be installed between the base and suspended ceilings. Finally, the use of an air conditioner in a room where there is already ventilation is undesirable.

That's all, now you are aware of what ventilation is in such places, how to design and calculate it. Don't forget to watch another themed video. Good luck with your work!

Video - The device of the supply and exhaust ventilation system

Neglecting the arrangement of ventilation systems in pools invariably leads to an increase in humidity, the appearance of fungus and the creation of an unhealthy microclimate in the room. The accumulation of condensate damages the finish and destroys the structural elements of the building.

Agree, the prospect of a premature overhaul will please few people. Thoughtful ventilation of the pool will help to prevent the negative impact of high humidity - the system provides air exchange within the limits of sanitary and hygienic standards.

The issue of organizing ventilation must be resolved at the stage of designing the premises. In the article, we reviewed typical schemes for arranging a ventilation system for indoor pools, described effective ways to control humidity, and provided recommendations for developing a project and choosing climate equipment.

During the construction of public and private swimming pools, sometimes they do not pay due attention to the ventilation of the halls, considering them to be non-residential premises.

However, it is there that, without proper arrangement, harmful fauna and flora are born, carrying a real threat to the practically unprotected organisms of bathers and swimmers.

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