Indoor swimming pool humidity control & dehumidifier calculation.

Pool humidity control can be done with help of swimming pool dehumidifiers.

In last many article we understood need of swimming pool dehumidifiers for indoor pool humidity control. In short indoor pool humidity problem can cause mold, fungus, swelling of wood, bad smell of chlorine in your indoor pool room area. Indoor pool dehumidifier helps to remove humidity in pool room which is generated by exposed water surface area of swimming pool. Humidity generated by pool is directly proportional to water surface area and temperature of swimming pool water. Swimming pool humidity control needs efficient pool dehumidification unit. In this article we will learn how to do indoor pool dehumidifier sizing by considering actual data and arrive at proper indoor pool dehumidification calculation.

Data needed for swimming pool dehumidifiers calculation.

As mentioned above pool dehumidifier capacity is mainly depend on surface area of swimming pool and temperature of indoor  water. In addition to this you need to consider additional factors like volume of indoor pool room, type of swimming pool (residential, therapy, hotel or sport) and indoor swimming pool room temperature. Now lets consider a example of residential swimming pool. Current indoor pool humidity level is around 90% RH and owner wants it at comfortable level. For indoor pool rooms and spa it is expected that indoor swimming pool dehumidifier should reduce humidity to 60% RH. Size of swimming pool is 10 meter by 5 meter which exposed water surface area of 50 square meter. Air conditioner of indoor pool area maintaining room temperature of 25 degree Celsius. Maximum temperature setting for pool water is not more than 30 degree Celsius.

Formula for calculation of indoor pool dehumidifier size.

Here we are going to use simplified as indoor pool dehumidification calculator which is derived considering all factors effecting capacity of dehumidifier. Same formula can be use for capacity calculation of residential indoor pool dehumidifier and commercial dehumidification units. Formula for calculation of indoor pool dehumidifier is as follow:

W= 15 x [Ax(Pw-Pa)Fa]

Where:

W= Evaporation rate in kg/hr or liter/hour.

A= Water surface area of indoor swimming pool in square meter.

Pw= Saturation vapor pressure taken at water surface temperature.

Pa= Saturation pressure at room air dew point.

Fa= Activity factor depend on type of swimming pool.

Table for calcuation size of indoor pool dehumidifier for pool humidity control.To get capacity of indoor swimming pool dehumidifier let put values in above formula.  Area of swimming pool we can get from site visit. To find out Pw we need to refer table 1, from which we can find out its value corresponding to temperature of swimming pool water. Pa value can be find out from Table 2. Corresponding value of Pa with respect to room temperature can be find out. Activity factor is depend on number of people using room and their activity. Hence type of swimming pool classified into broad seven types where number of people using indoor pool varies and activity factor has been mentioned.

From Table 1: value of Pw at swimming pool water temperature of 30 degree Celsius is 0.0425

From Table 2: Value of Pa at indoor temperature of 25 degree Celsius and required humidity of 60% RH is 0.0190

Since it is residential pool, from activity factor table we can consider activity factor Fa=0.5

When we put all value in above formula, we get capacity of 8.81 liter per hour which equals to 202 liter per day.

Same calculation can be use of pool and spa dehumidifiers.

For more information of indoor pool dehumidifier please contact us.

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SPD Indoor Swimming pool Dehumidifier review.

Review: SPD series Indoor Swimming pool Dehumidifier by CtrlTech.

It is very important to consider swimming pool dehumidifier while doing swimming pool design. CtrlTech offer specialised SPD series dehumidifier ranging from 56 liters/day to  900 liters/day. In this article we will review SPD series pool dehumidifier in detail which can help you as dehumidifier buying guide. CtrlTech offers Indoor Pool Dehumidifier in Dubai, UAE, Oman, Qatar and Kuwait. Lets discuss various features of SPD series dehumidifier. SPD-136L swimming pool Dehumidifier supplier in UAE, Dubai, Qatar, Kuwait and Oman.

Description of SPD Dehumidifier.

SPD series dehumidifier is wall or ceiling mount dehumidifier. This swimming pool dehumidifier is easy to install, require only three Dehumidifier for swimming pool design.connection of power, drainage and controller connection. It can connected in parallel with air conditioner duct or can be connected independently. Unit provided with LCD controller and connected with unit with special plug to unit. It can be use as residential indoor pool dehumidifier and commercial swimming pool dehumidifiers. SPD series model is best solution for indoor pool dehumidification.

Housing and body.

Body of SPD series indoor swimming pool dehumidifier is made from adopts steel frame structure, it is compact, with strong corrosion resistance, and consists of anti-cold bridge device, effectively preventing the "condensation" phenomenon. With removable flush seamless access panels, it is very easy for maintenance. Water tray equipped ensures that all condensate water drain out, preventing water stagnation.

Duct

Inlet and outlet duct size is different across different capacity of dehumidifier depending on air flow. Removable filter is equipped in each air inlet hole, 35% filtration efficiency. At supply duct a centrifugal fan with steel volute and blades is provided SPD-136L swimming pool Dehumidifier in UAE.which ensures high efficiency and low noise.

Refrigeration system

In SPD series Pool Dehumidifier extra use energy-saving heat exchanger, integrated using a liquid separator reservoir and heat exchangers, it can effectively regulate the fluid flow volume, maximizing freezing capacity, and ensuring compressor operate well. Meanwhile, dry filter was introduced in this system to prevents clogging/impurities in expansion valve or capillary. It equipped with patented defrosting structure, it brings stable operation of refrigeration system. Hydrophilic membrane fin(heat exchanger), heat transfer efficiency increases by 20%. Good insulation material also increases insulating effect by 15%.

Compressor

Compressor is the core part of this dehumidifier. It directly impact dehumidifier’s performance. It is the heart of this dehumidifier, provides powers for whole system. SPD series swimming pool dehumidifier consists of only use the international SPD-136L swimming pool Dehumidifier in Qatar, Kuwait, UAE,OMAN.well-known brand compressors: Panasonic compressor and Dakin compressor.

Throttling device system

Throttling device system is one of four important system in refrigeration systems. It will reduce the liquid refrigerant(coming from condenser)’s high pressure, make the refrigerant absorb heat under low pressure(low temp) while vaporization. Anyway, it is one important component to ensure high pressure in condenser and low pressure in evaporator. As a result of direct expansion way, small cooling loss, high efficiency, it also prevents fluid striking and over-heating. Expansion valve superheat stable, the system is stable.

 Protection devices

  • De-humidifier controller is powerful, high overall operating performance. Motor overload and short circuit protection is introduced too; Motivation switches are provided for overload and short circuit protection.
  • SPD-136L swimming pool Dehumidifier in Kuwait, UAE, Qatar,OMAN.Starting-up delay protection: If the de-humidifier is cut off normally, it will take 3 minutes when turn it on again.
  • Shutdown delay protection: When the de-humidifier is cut off normally, fans will keep running for 3 minutes, bring the needless heat out of dehumidifier.
  • Fans selection: Fan can stop/keep running while the setting RH is reached, customer have can set it according to their demands.
  • High temperature protection: Prevent the compressor running continuously at high temperatures.
  • Low pressure protection: Prevents the de-humidifier running without refrigerant; avoids compressor burned.

Selection De-humidifier for swimming pool design

While selecting dehumidifier for swimming pool we need to pay attention to selection of capacity and mounting of dehumidifier. Capacity of pool dehumidifier is depends on area of swimming pool, temperature of swimming pool water, number of occupants & indoor room temperature.  bigger the swimming pool area and higher the swimming pool water temperature, evaporation will be take place at more faster rate and humidity will increase. Ceiling mount dehumidifier is always recommended for faster dehumidification. To know more about our swimming pool dehumidifier , please contact us. for Dehumidifiers sale write us at sales@ctrltechnologies.com

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