But it is not time for us to rest on our laurels; because as they say nothing wilts faster than the laurels that have been rested upon. Commercial applications are now gaining acceptance. As air passes through these channels, moisture is transferred between the air and the desiccant. Comparison of Moist Air Handling by Desiccant Wheel and Conventional VCR System. Desiccant dehumidification systems as add-on modules to electrical refrigeration systems could help solve the challenges facing the HVAC industry especially as increased ventilation rates, need for improved indoor air quality and better humidity controls, phase-out of CFCs, national standards requiring higher efficiency for cooling systems, and desire for lowered peak electric demands. As a result, desiccant assisted dehumidification is capable of handling the dew point of the air to 40°C. When warm and humid summer air enters the colder inside of the ice rink or curling hall, condensation and formation of water... Dry air and humidity control for Military Equipment. Lowering the cost of desiccant dehumidification systems and improving their performance will clearly provide more opportunities for desiccant dehumidification technology. The most desiccant dehumidifiers use the desiccant material in a rotor form. Condair dehumidfication and drying systems are helping to improve productivity, sustainability and health in many commercial and industrial applications throughout the World. The main advantages of this technology, with respect to conventional vapor compression based systems based on cooling dehumidification, are: – The sensible and latent loads can be separately controlled; These units have a wide application in
Vison Trade managed slowly to grow and strengthen its presence on the ground, its experience with the years created a strong bond with clients and producers … This moisture-removing beast is fit for any basement, cellar or large room, and it’s Energy Star certified, so it quickly and effectively absorbs moisture without racking up your energy bi – A heater to heat the air that is used to regenerate the desiccant material. QUIET SAFE and ENERGY EFFICIENT - Features low noise thermoelectric peltier module and energy efficient 25W ETL certifi In low fan speed desiccant dehumidifiers are all just below 40db and you will not get a vapor compressor dehumidifier below 40dB. Desiccants used in restorative drying can be as small as a roll-on suitcase or as large as two semi tractor-trailers. Due to the effect of adsorption heat released during the dehumidification process, the temperature of the process air is increased and its relative humidity is decreased. The desiccant dehumidifiers on the other hand have a consistent performance regardless of the temperature. The
such as pharmaceutical and petrochemical applications – due to their ability to produce extremely low levels of humidity. Soon enough we got there within the timeframes we set for ourselves. A high degree of water evaporation is common with indoor pools, especially in combination with elevated air temperatures, le... Condair Group AGGwattstrasse 178808 Pfäffikon SZSwitzerlandTel: +41 55 416 61 11info@condair.com, Condair dehumidifiers and dryers help to improve productivity and quality. This is where thermal energy comes into the picture: there are instances where desiccant regeneration done by waste heat, natural gas, or off-peak electricity is more economical compared to regular electric refrigeration. In this market as an emerging player we had a clear vision of what we wanted to achieve. Two key principles for selecting appropriate desiccant materials are: the desiccant materials should possess large saturated adsorption amount and can be reactivated easily. They create a cold surface, and once the warm and damp air inside the room hits the cold surface, condensation starts, then the water separates from the air. Any application whereby the room air temperature is likely to fall below 15°C then you should be looking at a desiccant dehumidifier. The newly
Another important note is that compressor dehumidifiers use major greenhouse gases whilst desiccant dehumidifiers do not. Hotels and motels, office buildings, and restaurants provide the next opportunity. Pharmaceutical Manufacturing, Food
Ground water and lake temperatures are often much lower than air dewpoints, which can result in condensation on the outside ... Dehumidification systems for private indoor Swimming pools.
Desiccant materials have been playing a crucial role in the development of desiccant assisted air handling especially, during dehumidification of moist air.
The wheel is then rotated so that the desiccant portion that has picked up moisture is exposed to hot reactivation air and its moisture removed. As desiccants can be either solid or liquid, desiccant air conditioning systems can be classified into two categories, namely, solid desiccant air conditioning systems, which consist of fixed bed type and rotary wheel type, and liquid desiccant air conditioning systems. Please find the benefits of dehumidification and drying for your needs in this application section. These
As the temperature starts to fall down towards 10°C then the chances are that the inside of the dehumidifier will get close to freezing, increasing the changes of ice forming on the dehumidifiers cooling coils. Currently, a number of cost-effective applications in the market will result in increased sales during the next several years; but as in other technologies, further R&D and demonstration programs will enhance broader applications of the technology. Air dehumidification can be achieved usually by two methods: (1) cooling the air below its dew point and removing moisture by condensation or (2) sorption by a desiccant material. Air conditioning units outside a building Air conditioning (often referred to …
The air to be dehumidified enters the system, comes into contact with the desiccant wheel, and exits the dehumidifier hot and dry. Complete unit with process blower motor ,reactivation blower motor, reactivation heaters ,steam coil, Dehumidifiers designed for low pressure steam of 3 .2 Kg I Cm2 without any backup heaters, Desiccant dehumidifiers are especially well-suited for removing moisture from, at at a low temperature and low humidity level. To re-use the desiccant, it must be regenerated or reactivated through a process in which moisture is driven off by heat from an energy source such as electricity, waste heat, natural gas, or solar energy. Commonly used desiccant materials include activated carbon, activated alumina, molecular sieve, silica gel, lithium chloride, calcium chloride and etc. – Due to the higher value of the COP, electric energy requirement for producing the cooling is lowered; – As the sensible cooling coil has to handle only the sensible load of the process air, a reduction of its size is obtained; this consequently determines a lower environmental impact, both in terms of direct impact (ozone layer reduction and greenhouse effect due to refrigerant fluids) and indirect one (the reduced electric energy use determines lower equivalent CO2 emissions of the power plants); The warmed
Air passes through the Honeycomb Desiccant.
It is obvious that silica gel as desiccants improve adsorption capacity significantly. Vision they say is seeing what is invisible to others. Desiccant materials attract moisture based on differences in vapor pressure between desiccant substrate and moist air. Therefore, desiccant … – Very low dew point temperatures of process air, lower than -6°C, can be achieved; – The cooling can be achieved with a higher chilled water temperature, which ultimately results in a higher COP of system; The incoming process air stream
These units have a wide application in Pharmaceutical Manufacturing, Food processing units, Hygroscopic product storage, Seed storage rooms, Cold store rooms, Defence labs, Manufacturing facilities of computers and electronic components, Power stations, precision and chemicalplants, Fruit Drying The heart of these dehumidifiers is a patented desiccant wheel made up … Recently, the rapid development of desiccant dehumidification and space cooling technology, which can handle sensible and latent heat loads independently without using CFCs and without consuming a large amount of electric power, and thus, meet the current demands of occupant comfort, energy saving and environmental protection, has expanded desiccant industry to a broader niche applications, such as hospitals, supermarkets, indoor swimming pools, restaurants, theaters, schools and office buildings. Desiccant units are typically used in areas where dry conditions are essential – Indeed, desiccant systems avoid the formation of condensed water; this strongly reduces the presence of microorganisms as bacteria, viruses and fungi. The reactivation air is heated by all electric systems or steam plus electric system.
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