High humidity in the apartment worsens living conditions, causes the development of fungus, mold, and the appearance of a musty smell. All this often leads to health problems. A device for drying indoor air can prevent this. It will create an optimal microclimate for health and comfortable living.
The cause of high humidity in the room can be various factors: installation window openings with non-compliance with standards, poor hydro- or thermal insulation, ventilation problems. In this case, a dehumidifier is used to stabilize the moisture level. This is a unique device that can reduce and maintain a given level of humidity in a living space.
Depending on the purpose, there are household and industrial dehumidifiers. The main difference between them is productivity (the amount of air processed over a certain period of time). The apartments use appliances for household use, which can absorb up to 50 liters of moisture per day, while purifying the air from harmful microparticles.
The principle of operation depends on the type of dehumidifier, but they all share similar functionality: the dehumidifier draws in moist air, processes it, removing excess moisture, and releases back dry air.
Air dehumidification devices are classified according to two criteria: device type and operating principle.
In the first case we're talking about O in various ways installation and placement of the device in a residential area. Dehumidifiers are available in floor, wall, universal and concealed types.
Depending on the principle of operation, there are adsorption and condensing types devices, as well as a desiccant with assimilation property.
The functioning of this dehumidifier is based on the adsorption properties of the substances and materials it contains. The inside of the device contains a sorbent that absorbs excess moisture, drying the air inside the room. The main disadvantage of these devices is the frequency of changing the adsorbent.
Condensation dryers are in greatest demand. Such a device is impossible would be better suited for a house or apartment.
The operating principle of the devices is based on the condensation of water vapor. Most home dehumidifiers work exactly like an air conditioner. The device has built-in “warm” and “cold” radiators (evaporator and condenser).
The ventilated air entering the evaporator is cooled. Due to this, it condenses and then accumulates in a special vessel (tray), from which the liquid must be drained regularly. If this is not done, the device will automatically turn off.
Some models of dryers of this type have an outlet to which a tube is connected to drain water to the street, into the sewer system.
The principle of operation of this type of dehumidifier is the exchange of air masses between the room and the street. Humid air from the room is expelled outside, and fresh air is drawn in from the street. During circulation, the humidity in the room decreases.
The disadvantages of the device include significant heat losses that go out along with the moist air, as well as energy costs for heating the intake air. Among the disadvantages of assimilation-type dehumidifiers is the inability of the device to dry the air in humid weather conditions and the inability to use it in regions with a humid climate.
When choosing a device for dehumidifying air in an apartment, you should first decide on your preferred type.
Other selection criteria include the following:
Each device has a certain capacity, which indicates the amount of moisture removed per hour or day. This indicator in the characteristics of the model is indicated in the form of abbreviations “l/h” or “l/s”.
If you purchase the device too low power, the required effect will not be achieved and such a dehumidifier will work continuously, at the limit of its capabilities. Such a load will significantly reduce its service life. Purchasing a device with a performance that exceeds the needs will lead to a rapid decrease in moisture levels in the room, so in the future the dehumidifier will only operate at a loss due to excessive energy consumption.
In order to choose a device with the required performance, you should know the humidity level in the room. It can be calculated as follows: the area (square area) of the room where air drying will be carried out must be multiplied by a factor of 0.7. You will get an approximate indicator that you should focus on when choosing.
When dehumidifying the air in an apartment, a device that is too noisy can cause discomfort, especially when used at night. It is recommended to pay attention to models whose noise level does not exceed 45 dB.
Before purchasing, it is recommended to consult with a specialist in advance to determine which company’s device is suitable in a particular case, based on the price-quality ratio, as well as the popularity, reliability and performance of the models.
The larger the volume of the condensate collection tank, the less often it will have to be drained from there.
The energy consumption of a dehumidifier primarily depends on the performance. On the market household appliances There are models with high efficiency, which at the same time consume little electricity.
These include the presence of a hygrometer (it displays a humidity indicator on the display or screen), a sound alert in case of overflow of the water collection tank, a timer, an air ionization function, and an auto-shutdown function for the device in case of incorrect operation or a full tank.
Also, in addition, some models of air dryers can perform the functions of a hydrostat and air purifier.
To do right choice and not regret the purchase, it is recommended to carefully study the criteria of the preferred model.
This portable dehumidifier is ideal for use in apartments, private homes, office premises. The maximum performance of DanVex DEH-1000P is 80 liters per day, power consumption is 820 W. The operating temperature of the device varies from +5 to +33 degrees.
The device is made of high-strength plastic and is equipped with a water tank with a capacity of 7 liters. Its weight is 25 kg.
Among the advantages of the dehumidifier are the ability to connect an external drain and the presence of a hydrostat, which independently solves the tasks.
The price of the device is about 75,000 rubles.
The main purpose of the model is to dehumidify the air in the apartment and house. Thanks to its silent operation, the device does not create discomfort during rest. It is easy to use, performs its tasks perfectly, and is reliable.
H-DEH1-20L-UI007 Hyundai speeds up the process of drying clothes, creates favorable microclimate in the apartment, helps destroy fungi and mold. Also among the advantages of the model are:
Main characteristics:
The cost of H-DEH1-20L-UI007 Hyundai is 12,900 rubles.
The dimensions of the device are compact (thickness less than 20 cm, height about 50 cm). The device is attractive appearance and is convenient for transportation due to the existing handle.
Characteristics:
The model is equipped with a child lock option, which makes it safe to use. This device has the ability to independently set the timer, turn it on and off. The condensate accumulates in a special tank.
The price of the dehumidifier is 31,000 rubles.
The device is suitable for use in apartments and residential premises whose area does not exceed 40 sq.m. The model is equipped with a hydrostat and an indication of the filling of the moisture storage tank. Availability carbon filter will allow you to effectively deal with the elimination unpleasant odors, if any.
The dehumidifier has a modest capacity, only 16 l/day. The air exchange rate is 215 cubic meters per hour. The average noise during operation is 46 dB. Despite its compactness, the device has a 5.5 liter moisture collection tank.
Price – 22500 rubles.
Ballu is a popular brand that produces climatic equipment. Ballu BDH-25L fully copes with the function of dehumidifying the air in the apartment.
The productivity of this model is 25 l/day. Air exchange is 210 cubic meters/hour. The tank volume is 6.5 liters.
The model is equipped with a fill indicator, a device shutdown timer, and a hygrostat (automatic maintenance of the specified humidity). Noise level at maximum work will be 45 dB.
Price – 18,000 rubles.
Watch a video review of two (25 and 30 liter) Ballu brand dehumidifiers:
A dehumidifier is a device designed to maintain a given level of humidity in a room, as well as get rid of excess humidity. A dehumidifier is indispensable if it is necessary to eliminate the consequences of high humidity - fungus, mold and prevent their occurrence. for an apartment, house, cellar, garage, pool you can at competitive prices.
Most dehumidifiers operate on the principle of condensation of moisture in the air onto a cold surface.
The dehumidifier is equipped with two heat exchangers located one behind the other and connected into a single circuit, which is filled with refrigerant (freon). Using a compressor, the refrigerant is circulated in the circuit and maintained operating pressure. The fan forces air from the room through the dehumidifier.
Passing under pressure through a thin and long capillary tube, the refrigerant is greatly cooled, enters the first heat exchanger and cools it. Humid air from the room passes through the first heat exchanger, cooling and forming condensate, which flows into a special tray, and can then either be collected in a special built-in container or discharged into the sewer system through a drainage pipe.
The refrigerant from the first heat exchanger heats up, evaporates and enters the compressor. Due to compression, the refrigerant becomes very hot and enters the second heat exchanger. In it, the refrigerant condenses under the influence of passing cold air. At the same time, the air heats up.
Thus, the dehumidifier first cools, then condenses moisture and heats the air.
Depending on the purpose, there are Various types dehumidifiers.
How to choose a dehumidifier?
To approximate the required drying regime and preliminary selection of dryers, it is enough to use empirical formulas, taking into account compliance with two basic requirements:
1. Dehumidification is carried out in indoors.
2. The room temperature is within the operating temperature range of this dehumidifier.
APPROXIMATE CALCULATION OF THE REQUIRED DRYING MODE.
Designations:
Q - required moisture removal, l/h
V - room volume, m3
Vdr - volume of drained wood, m3
Rdr - density of dried wood, kg/m3
S - pool mirror area, m2
A detailed description of the dehumidification system design methodology is given in the Dantherm Dehumidification System Design Guide - 1998.
|
Application area |
Required moisture removal, l/h |
Conditions |
|
Dry storage (warehouses) |
Q = Vx 1.2 x 10-3 |
Air exchange rate 0.3 Drying rate 2.5 g/m3 h Air temperature 20 °C |
|
Dehumidification of residential and administrative premises |
Q = V x 1.5 x 10 -3 |
Air exchange rate 0.5 dehumidification 2.5 g/m3 h Air temperature 20 °C |
|
Drying buildings |
Q = V x 2.0 x 10-3 |
Air exchange rate 0.3 Drying rate (taking into account the evaporation of moisture from wet materials) 3.2 g/m3 h Air temperature 20 °C Drying period 8 days |
|
Drying wood |
Q = Vdr X Rdr X 0.4 X 10 -3 |
Sealed drying chamber Air temperature 25-30 °C Relative air humidity 30-40% Drying rate 1% of wood moisture content per day |
|
Swimming pool drainage |
Private swimming pools up to 50 m2 (with protective cover, limited load): |
Inflow of outside air - (10 x S) m3/hour Air temperature - (t water + 2) °C Relative humidity - 60% |
VDI 2089 STANDARD FORMULA
The evaporation rate is calculated as follows:
W = e x S x (Pnas - Rust) g/h;
Where:
S is the area of the water surface of the pool, m2;
Pnas is the water vapor pressure of saturated air at the water temperature in the pool, mbar;
Rust - partial pressure of water vapor at a given temperature and humidity, mbar;
E - empirical coefficient, g/(m2 x hour x mbar):
0.5 - closed pool surface,
5 - fixed surface of the pool,
15 - small private pools with a limited number of swimmers,
20 - public pools with normal swimmer activity,
28 - swimming pools for recreation and entertainment,
35 - pools with water slides and significant wave formation.
Example. Private pool.
Pool mirror 20 x 5 m S= 100 m2
Water temperature 28 °C (100% r.h.) Рsat = 37.78 mbar
Air temperature 30 °C (60% r.h.) Rst = 25.45 mbar
Evaporation rate
W = 13 x 100 x (37.78-25.45) = 16029 g/h = 16 l/h Rust - water vapor pressure of saturated air at a given temperature and air humidity, mbar
a is the coefficient of pool occupancy by people:
1.5 - for play pools with active wave generation,
0.5 - for large public swimming pools,
0.4 - for hotel pools,
0.3 - for small private pools
Kirill Sysoev
Calloused hands never get bored!
Content
Excess moisture leads to many problems: fungus appears, things take longer to dry, and clothes in closets acquire a specific smell. Such conditions also negatively affect human health. So we need to fight high humidity in the room. One way to eliminate this drawback is to buy a moisture absorber.
The most common type is the one that operates on the principle of steam condensation. The main structural components are: radiator (evaporator), fan, capillary tube, condenser, liquid container and compressor. Humid air enters the evaporator, the temperature of which is lower than environment in room. As a result, condensation forms, then the liquid enters a container designed to collect water.
The air in the device has already been dehumidified; all that remains is to increase the temperature to a normal level. A capacitor is used for this purpose. Air passes through it under the influence of a fan. After all stages, the microclimate in the room is normalized. There are other desiccant agents, for example, those based on the adsorption method. In this case, the basis of the design is the sorbent.
An air dryer is used for different purposes:
Meet different kinds this technique. A dehumidifier for an apartment or a private house is used as a household one, because it is capable of releasing liquid in quantities of 10 to 100 liters per day. Industrial analogues are much more effective and can remove moisture over 100 liters; they are not advisable to use in everyday life. For apartments, dehumidifiers come in the following varieties:
The last option is small in size, because these models are designed for installation on a table and operate from a power outlet. Wall-mounted appliances are mounted on vertical surface. The floor-standing analogue is characterized by large dimensions, which does not allow the model to be placed on a table or wall. However, this option is capable of drying large volumes of steam, for this reason it is used in facilities with a large area, as well as intensive air humidification. In addition, there are universal devices and concealed moisture absorbers.
Air dryers are divided into groups according to differences in operating principles:
The choice of such technology is wide. To avoid problems during operation in the future, it is recommended to pay attention to the build quality of the device and the brand. Popular products include Dantherm, Ballu (models BDM, BDH), Timberk, NeoСlima, Mitsubishi Electric, Master, Lazer. You can choose the design according to the installation method (on the wall, floor, universal), operating principle, and suitable price.
Household appliances in this category are offered in the range of 15,000-35,000 rubles. You can buy a dehumidifier inexpensively, but such models will be simpler in terms of functions. Manufacturers offer models in different price categories. For example, Ballu produces a functional dehumidifier BDM with ionization, aromatization, high performance and the ability to remove moisture 30 l/day. (price 20,000 rubles).
Another model from the Ballu BDH catalog can be purchased for 18,000 rubles, but the performance is lower and there are no additional functions. Each device is capable of drying a different size area. The cost of some models with the same moisture removal or other parameters may differ. If you buy from an online store, the price will be lower.
Before ordering a desiccant for an apartment, you should rely on a number of criteria:
With the development of technology, there are more and more opportunities to make your life more convenient. In many ways, our physical condition and mood depend on the comfortable microclimate in the apartment. It consists of: temperature, humidity and air mobility. And if the temperature is maintained by heating, and excessive movement can be avoided by eliminating drafts, then with humidity everything is more complicated. To maintain its optimal value, a dehumidifier is needed for the apartment. We will discuss prices, reviews, popular manufacturers, as well as selection criteria in detail in this article.
Read in the article:
For humans, the optimal humidity ranges from 40 to 60%, but this value is often exceeded for several reasons:
Related article:
Modern humidifiers cost a lot of money, so many people ask the question: how to humidify the air in a room without a humidifier? There are several effective ways, which we will consider in this article.
Exceeding the optimal humidity level by at least 10% has a detrimental effect on human well-being and the interior. The higher it is, the more actively they reproduce mold fungi. At the first stage, black spots appear on the ceiling, plaque on the walls and a specific smell. Later, spores appear that negatively affect the respiratory tract (allergies or asthma may occur). In addition, due to excessive humidity, a favorable environment is created for the proliferation of microorganisms on the mucous membrane of the eye, which can lead to the development of infection.
The general condition of the room is also reflected high humidity. New wallpaper may peel off, doors may stop closing (due to wood swelling under the influence of water), and metal interior parts may become rusty.
All of the above can be avoided by maintaining normal humidity in the apartment. But often simple rules(ventilate the room, monitor the work natural ventilation etc.) cannot be avoided, and there is a need for a special device capable of drying the air in the apartment.
Household dehumidifiers for the home (or dehumidifiers) are capable of not only removing the required amount of moisture from the room, but also maintaining optimal humidity. Based on the principle of operation, they come in two types: condensation and adsorption dehumidifiers.
The operation of these devices uses the ability of certain materials (in in this case– adsorbents) to absorb moisture. Subsequently this material needs to be dried or replaced.
Remember! Silica gel is easy to dry in a regular oven; just place it for 1.5-2 hours at a temperature of 50-60°C.
A modern example of this type is an adsorption dryer with a silica gel rotor. During rotation, the adsorbent is mixed. Air enters the device through the larger part of the disk, water condenses, and dried and heated air exits through the smaller part (drying the silica gel) into the room.
Advantages of adsorption dryers:
There is only one drawback - low efficiency compared to a condensation dryer.
More modern look dehumidifiers that can quickly achieve the required microclimate parameters in the apartment. The principle of its operation is the condensation of water vapor on the cooled surface of the evaporator. That is, air enters the device, cools to the dew point, steam condenses, and dry air heats up and returns to the room.
Like an air conditioner, a condensation dryer cools the air by circulating refrigerant. However, in this case, the superheated air is not removed to the street, but returned to the room.
Advantages of condensation dryers:
Flaws:
If you need to get rid of excess humidity in your apartment, you don’t have to buy a special device; you can make it yourself. Condensing devices are complex devices, the design of which requires certain skills. Therefore, we will focus on a simple adsorption device.
Materials:
First, you need to cut the bottle crosswise and make several holes in the bottom (using an awl).
Important! The holes are needed to allow dried air to enter the room, so don't make them too small.
Next, we wrap the neck of the bottle with gauze, fill this part with silica gel and lower it to the lower part, securing it with tape. It is advisable to place a household fan next to the device (you can power it from a computer), then the drying process will be more intense.
First of all, when choosing a dehumidifier, you need to decide on the type (adsorption or condensation). Next, pay attention to its parameters:
If you buy a device that is too powerful, it will consume a lot of power and create a lot of noise. Yes, it will dry the air as quickly as possible, but this is not advisable.
Manufacturers usually indicate how much room the dehumidifier is designed for, but you can focus on optimal air exchange equal to 3-4 room volumes. In this mode, the device will quickly reach optimal humidity, and maintaining it will require a minimum of electricity.
It all depends on the manufacturer and the efficiency of its dehumidifier. It happens that a device with greater performance consumes less energy.
The ability to wash the air dryer filter extends its service life.
Let's compare several dehumidifiers for apartments (prices, reviews, main parameters) of popular brands to simplify the choice.
Maria, Tolyatti:“It was very stuffy in the autumn-spring period, so I decided to buy this inexpensive dehumidifier. Does the job perfectly! Yes, it’s noisy, but for the money it’s an ideal option!”
Olga, Rostov-on-Don:“I love buying newfangled gadgets for the home, this time I chose this device. Very easy to use, has replacement filter(until you change it, it will not work further!). one drawback is the noise; it’s simply impossible to turn it on at night!”
Maxim, Vologda:“I bought it 2 weeks ago, so far so good. The main advantage is the ability to drain condensate; there is no need to constantly change the container, as in other dehumidifiers.”
Andrey, Krasnodar:“There was a need to purchase a dehumidifier for a large studio apartment. I bought this unit because of the price, which is very attractive. It’s very convenient to be able to regulate the power (you can set it to minimum, then you can’t hear it, but it does its job) and set it on a timer.”Julia, Belgorod:“I bought it 2 months ago and was hooked on the ability to not only dehumidify the air, but also purify it. Very easy to use: touch panel, speed switching, timer. I’m definitely happy with the purchase!”
At great content water in the air can cause health problems and damage furniture and walls. Therefore, it is necessary to dehumidify it to an acceptable level. This can be done with improvised means, but it is more effective to buy an inexpensive dehumidifier for your apartment (absorption or condensation). They are inexpensive, consume little electricity, and the comfortable microclimate in the apartment is worth it.
Many people face the problem of dampness in their own homes and even apartments. Humidity itself may not become a critical threat, but the possibility of the development of pathogenic flora, mold formation and the general atmosphere of such damp housing are not at all encouraging. Sometimes it happens that dampness has a local distribution - for example, a bathroom or kitchen. In any case, a solution to this problem has been found. If you want to get rid of dampness in your home, then you need to use household dehumidifier household level.
All dehumidifiers can be divided into domestic and industrial. Household dehumidifiers used in apartments, houses, cottages and country houses.
Let's stop and look at a household air freeze dryer. The design, dimensions and operating principle of this dehumidifier can be very different. The air dryer can be mobile, wall-mounted or floor-mounted. To remove moisture, air cooling, hygroscopic material, heating, or other equally intriguing sublimation methods can be used. The question is what effect you want, and what humidity a particular device will have to deal with. The main thing to remember is that you can buy a freeze dryer at any time.
The choice of design should be made based on practical conditions. If you have a generally high level of humidity in your apartment, then ideal option is household dehumidifier. If moisture is spreading from a specific room, or even a corner, then it is wiser to install the device there in order to stop the spread of the problem in principle.
Lyophilizers (air dehumidifiers) will help maintain the required level of humidity in your home. Thanks to this modest device, the microclimate of your home will become healthier and more pleasant.
Buy household dehumidifiers You can visit the online store website. To do this, you need to place an order through the website or contact the manager by phone.
