Typically, a desiccant dehumidification system is utilized for applications below 45% rh down to 1% rh. The wheel is then rotated so that the desiccant portion that has picked. This is the second type of dehumidifiers, which operates using desiccants. They are based around a refrigerant circuit system, and are generally used in areas, in which the relative humidity has to be reduced to 35 45% rh. The process involves exposing the desiccant material to. Selection of desiccant equipment at altitude request pdf. Desiccant dehumidification rotors ecodry desiccant rotors. The complete 3d model of the dehumidifier which includes all components. Des specifically engineered for low temperature regeneration.
Selecting industrial dehumidifiers requires an analysis of product specifications. Its parent factory is one the worlds largest manufacturer of ahri certified energy recovery wheels. Condair help selection software login dehumidifiers and dryers. The operation of the dh100 desiccant system is based on two counter current air streams flowing through a rotating desiccant wheel. The desiccant adsorbs moisture from the air stream and the dry supply air is returned to the conditioned space. Click here to receive the ecofresh selection software f 2 200. Hence you want a dependable, stable and efficient rotor.
A desiccant dehumidifier is a device that employs a desiccant material to produce a dehumidification affect. Industrial dehumidifier sizing another primary factor is the amount of moisture that is allowed to permeate through the walls, floor and roof. It is the leading company in india who professionally produces. Iat offers a multitude of products for the desiccant dehumidification industry. If the room temperature is below 10c, you may choose a desiccant dehumidifier. In a building of this size and shape, air distribution ducts are practical for effectively spreading the air so it can return to a common point and reenter the dehumidifier. In general, its best to use a desiccant dehumidifier if the temperature in your space will fall below 65 f 18 c. Condensing dehumidifier condair dc condensing dehumidifiers have many different applications across the industrial, commercial and warehousing sectors. Excess humidity is adsorbed into the silica gel before leaving the dehumidifier as warm dry air. Development and selection of desiccant dehumidifier authorstream.
This ecoair desiccant dehumidifier is one of the most popular on the market as it comes from a trusted brand and at a reasonable price it has a rotary dial control panel so that you can set. Wheel performance the desiccant wheels are designed to. The air to be dehumidified enters the system, comes into contact with the desiccant wheel, and exits the dehumidifier hot and dry. Typical applications include food processing, product drying, water treatment plants, and a host of other applications where larger cfms are needed. Desiccant based systems are more economical than refrigeration systems at lower temperatures and lower moisture levels. Dehumidifier selection software dehumidifier corporation. Jan 08, 2015 is a desiccant or compressor dehumidifier more efficient. The air leaves the rotor much drier than when it entered. Compact, lightweight and rugged, the dh series 100 desiccant dehumidifier is an ideal unit for small. From smaller compact dehumidifiers to the rugged portable series dehumidifier, weve got you covered. Dst is currently represented in over 40 countries throughout the world. Desiccant dehumidification rotors ecodry desiccant.
Nov 02, 2017 compressors add about 6kgs to the weight of a dehumidifier so carrying a desiccant dehumidifier around is a lot easier than carrying a compressor dehumidifier around. Whilst compressor dehumidifiers only work really well in warmer temperatures over 20 degrees celsius desiccant units extract the same amount of moisture in any temperature between one degree and 20 degrees celsius. However, if you have parts of your home that are always chilly, then you should choose the desiccant dehumidifier as it produces more heat. The air to be dehumidified enters the system, comes into contact with the desiccant. Industrial desiccant dehumidification system munters. Dris ecodry rotors and cassettes are the result of many man years of indepth study and research work on countless permutations and combinations of substrates, desiccants and. After 10 years of operation the seibu giken rotor retains more than 90% of its original capacity. A desiccant dehumidifier lowers the humidity in a space using a process called adsorption. While desiccant humidifiers tend to have lower capacity ratings than refrigerant models, they operate much. Mar 21, 2017 if you prefer to keep certain parts of your home cool, nice and toasty, in this case, the compressor dehumidifier is the better choice. Desiccantbased systems are more economical than refrigeration systems at lower temperatures and lower moisture levels. Industrial dehumidifier capacity selection is a method of selecting a specific dehumidifier model depending on the calculation of humidity removal per day in a given location. Desiccant dehumidifiers, manufactured by seibu giken dst ab.
Return air from the conditioned space is drawn through the rotating desiccant wheel. The rotor series dehumidifier is equipped with a high capacity vertical desiccant wheel and is designed for the larger, more challenging applications than the smaller compact series. Everywhere that air humidity levels must be kept between 45 and 60% rh, condensation dehumidifiers present an energyefficient and costeffective solution. While desiccant humidifiers tend to have lower capacity ratings than refrigerant models, they operate much more efficiently in lower temperatures. Rotors desiccant dehumidifiers, manufactured by seibu. For desiccant dehumidifier selection, various manufacturers have different methods of selection. Commercial and residential air solutions novelaire. The construction factor takes into account the effect good vapor barriers and construction materials will have on the moisture migration. The component that holds the desiccant of which there are several types, a fan to move the air to be dehumidified process air through the desiccant holder, a fan to move the low humidity air for drying the desiccant through the desiccant holder and a heater to heat the air that will be used to dry the desiccant regeneration air. Consult our software on our website to help customize a product that best meets your requirements. When to buy a desiccant dehumidifier and when to buy a. Novelaire desiccant wheels and dehumidifiers are installed in hospitals, retail facilities, supermarkets, office buildings, clean. We then transition into a discussion of how these same features and this same functionality read more. Dris ecodry rotors and cassettes are the result of many man years of indepth study and research work on countless permutations and combinations of substrates, desiccants and chemical processes.
To maximize moisture collection, the wheel rotates slowlyonly 10 to 30 rotations per hourthrough two air streams figure 2. At first glance a typical compressor dehumidifier looks cheaper to run as it runs on 450wh at a temperature of 30c, and a relative humidity level of 80%, whilst a desiccant dehumidifier typically runs at 600wh at 20c and rh of 60%. Air is blown though the rotor structure and the humidity in the air is absorbed by the desiccant impregnated in the honeycombe media that forms the rotor structure. All dst desiccant dehumidifiers use the seibu giken silica gel rotor. During this process, humid air is drawn into the dehumidifier and passed over a desiccant wheel infused with silica gel.
The industrial dehumidifier selection is done by performing a calculation for the humidity removal. They use a moisture absorbing material such as silica gel to absorb the moisture. Typically, a desiccant dehumidification system is utilized for. All desiccant dehumidifiers of desiccant technologies group are designed and developed using modern software. Selection software find the right dehumidifier for your pool room quickly and easily with the new dehumidifier selection software from dca. Screening tool for desiccant dehumidification applications. If the dryer has a delivery rate of 7500 cfm and 350 cfm of outside air is to be introduced, there remains 7150 cfm from the conditioned space.
Novelaire technologies has been creating the great indoors for over 15 years, supplying our customers with products that efficiently supply fresh air and independently control humidity in. Rotors desiccant dehumidifiers, manufactured by seibu giken. It is the rotor that determines the capacity and the lifetime of the unit. The following things are important to consider when choosing. Now you can select the right dehumidifier matching the capacity. The basic idea of the munters desiccant drying wheel rotor is very simple. Zenco is dedicated to the research and technology development in the filed of dehumidification and energyheat recovery. Desiccant dehumidifier cassettes standard drawings 150 kb hipanexion cassette nominal air flow ratings 87 kb note. The program models the performance of a wide array of input parameters to ensure the proper selection of desiccant wheel size and type. Seibu giken dst ab, founded in 1985, is now a leading international supplier of desiccant dehumidifiers.
Download useful information right from here on any of the parts or services we offer. Process air passes through one section of the wheel. The complete 3d model of the dehumidifier which includes all components is the result of thorough work of design engineers. Desiccant dehumidifiers tend to be smaller, lighter and can be quieter than compressor units. A compressor based dehumidifier uses a compressed refrigerant to cool metal coils evaporator coils. The rotor is the most important part of the dehumidifier. Table 4 gives factors for common construction materials.
These performance parameters can be obtained from any manufacturer by means of performance curves or selection software. The hot humid air that enters the dehumidifier condenses on these cool coils. Desiccant dehumidifiers are especially wellsuited for removing moisture from air at a low temperature and low humidity level. Software selection program for a more comprehensive analysis of performance, please consult the factory with the model selection software program. Condair dc condensing dehumidifiers have many different applications across the industrial, commercial and warehousing sectors. For cold rooms, the winner is the desiccant dehumidifier. While it may seem to be an oversized selection, consider that all desiccants in all manufacturers desiccant dryers will age, will possibly become physically and chemically contaminated with. Novelaire offers commercial, residential and special purpose dehumidifiers for. Therefore, 11,427 cfm of air 33 grslb from the dehumidifier is needed to maintain a grain level of 72 grslb. Is a desiccant or compressor dehumidifier more efficient. During this process, humid air is drawn into the dehumidifier and passed over a desiccant wheel. At the heart of these dehumidifiers is a patented desiccant wheel.
Munters desiccant dehumidification systems remove moisture from the air by using a desiccant. Specifically for pool room applications, this software ensures that you find the correct equipment for your pool room without the lengthy process of multiple phone calls and communications. If your room temperature is above 10c, you may go for a condensation dehumidifier. Desiccant dehumidifiers and heat wheels products seibu. For desiccantbased humidity control applications, novelaire developed a stateof theart, temperature resistant substrate that incorporates the latest breakthrough in adsorbent desiccant technology. Screening tool for desiccant dehumidification applications 37 1 marek czachorski senior mechanical engineer institute of gas technology 1700 south mount prospect road des. The net result is a lower average moisture content. Novelaire desiccant wheels and dehumidifiers are installed in hospitals, retail facilities, supermarkets, office buildings, clean rooms, industrial sites, and other dehumidification applications where corrosion protection, condensation control, and mold and mildew control are needed. This means that above calculated capacity liter of water has to be removed from the air to achieve a humidity of above desired humidity under the present conditions given by you.
Hence while selecting you have to select a dehumidifier accordingly. Condensation dehumidifier condensation air dehumidifiers as readytouse aggregates are often used in industrial and commercial applications, and for dehumidifying swimming pools. Rotor series dehumidifiers desiccant dehumidifiers. This method is relatively inexpensive to install, but relies on the fact that drier air is available. Whilst compressor dehumidifiers only work really well in. All desiccant dehumidifiers are designed and developed using modern software. Thus, in many applications, a dx or chilled water pre cooling coil is mounted directly at the dehumidifier inlet. Desiccant dehumidification the fist method uses the principle of dilution, removing a portion of the moisture laden air from a space and replacing it with drier air. Reference to chart 1, appendix 4, shows that air entering the dryer at 39.
Air is blown though the rotor structure and the humidity in the air is absorbed by the. To maximize moisture collection, the wheel rotates. An active desiccant wheel is very effective at removing moisture from. However, solid desiccant dehumidifiers are generally rated at standard sea.
Low noise level in low fan speed desiccant dehumidifiers are all just above or below 40db and you will not get a compressor dehumidifier below 40db with the exception of the. The above method applies to condensation type of dehumidifier selection for between 40% to 65% rh control level. Our patented substrate allows for a substantial increase in moisture removal while keeping the energy requirements low. Unlike other industrial dehumidifiers, liquid absorbent devices use substances such as lithium chloride to remove moisture from the air. Zenco industries best energy efficiency dehumidifier and.
In the seibu giken rotor the silica gel is chemically bonded to the structure, which means that there is no desiccant carryover to the air. Development and selection of desiccant dehumidifier. Desiccant wheel dehumidifier belt change out duration. Air volume is the amount of air that passes through the dehumidifier. These are especially useful for low temperature below 10c. Unlike totalenergy wheels, howeve r, active desiccant wheels rotate very slowlybetween 10 and 30 rotations per hour. Novelaire technologies has been creating the great indoors for over 15 years, supplying our customers with products that efficiently supply fresh air and independently control humidity in home or work environments whether supplying energy conservation or desiccant wheels to one of our more than 500 customers in 25 countries, or supplying a solar dehumidifier to condition your neighbors. This gives the total required capacity of the dehumidifier in litres per hour at the measured room temperature.
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