Last edited by Vilrajas
Monday, July 20, 2020 | History

2 edition of Desiccant cooling and dehumidification. found in the catalog.

Desiccant cooling and dehumidification.

Desiccant cooling and dehumidification.

  • 243 Want to read
  • 39 Currently reading

Published by American Society of Heating, Refrigerating and Air-Conditioning Engineers in Atlanta, GA .
Written in English

    Subjects:
  • Air conditioning.,
  • Humidity -- Control.,
  • Drying agents.

  • Edition Notes

    Includes bibliographical references and indexes.

    SeriesASHRAE special publications
    ContributionsAmerican Society of Heating, Refrigerating and Air-Conditioning Engineers.
    Classifications
    LC ClassificationsTH7687 .D47 1992
    The Physical Object
    Pagination197 p. :
    Number of Pages197
    ID Numbers
    Open LibraryOL720399M
    ISBN 100910110905
    LC Control Number97107168
    OCLC/WorldCa28601115

    Fig. 1—Schematic diagram of air dehumidification equipment. to be 87 to 90% for dehumidification systems using packed beds and solar regeneration during a process of simultaneous absorption and regeneration (Ko and McCormick, ). EQUIPMENT AND METHODS The design of a dehumidification system is dictated by a number of compromising requirements.   Delair Desiccant Dryer Video - Duration: Delair In views. Cooling With Dehumidification Of Air (हिन्दी) - Duration: LEARN AND G views.

    Dehumidification and the Psychrometric Chart Rarely will these occur as shown but will rather be a mixture of them. A refrigerant dehumidification system is a combination of sensible and latent cooling and sensible heating. First the system cools the air to reduce the dry bulb temperature to the dew point. Then latent cooling reduces the. The cost, efficiency, and durability of a desiccant cooling/dehumidification system depend on those of the components used in the system. The desiccant dehumidifier is a major component in the system. After several years of research, it is well understood.

    @article{osti_, title = {Dehumidification and cooling loads from ventilation air}, author = {Harriman, III, L G and Plager, D and Kosar, D}, abstractNote = {The importance of controlling humidity in buildings is cause for concern, in part, because of indoor air quality problems associated with excess moisture in air-conditioning systems. • 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. The net result is a lower average moisture content. This method is relatively inexpensive to install, but relies on the fact.


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Desiccant cooling and dehumidification Download PDF EPUB FB2

For a desiccant dehumidification configuration that provides total cooling, Equationsor a system-wide performance metric, would be more appropriate. View chapter Purchase book Read full. Desiccant cooling is an open cycle which uses a desiccant wheel and thermal wheel to achieve both cooling and dehumidification.

Solar thermal energy or waste heat can be used to re-activate the desiccant. The thermal wheel is a rotary heat exchanger positioned within the supply and exhaust air streams in order to recover the heat energy, and the desiccant wheel Desiccant cooling and dehumidification.

book in a similar way. Desiccant dehumidification and cooling technology can provide energy-efficient solutions for the industry. Desiccant dehumidification technology has a successful track record over more than 60 years for industrial applications such as product drying and corrosion prevention.

It. Munters Dehumidification Division Amesbury, MA USA Luiz Felipe de Carvalho Professor Emeritus of Thermal Technology University of Rio de Janeiro Rio de janeiro, Brasil Douglas Kosar Senior Project Manager, Desiccant Technology Gas Technology Institute Chicago, IL USA Hansi Krüger General Manager Munters Mexico Ralph Lahmon Architecture.

Desiccant-based systems are more economical than refrigeration systems at lower temperatures and lower moisture levels.

Typically, a desiccant dehumidification system is utilized for applications below 45% RH down to 1% RH. Thus, in many applications, a DX or chilled water pre- cooling coil is mounted directly at the dehumidifier inlet.

densation task and shifting dehumidification to a desiccant system: and (b) 20% reduction (in many applications) in the energy required for the remaining task-sensible cooling­ because it now can be done at an appropriate higher tem­ perature, 58°F instead of 42°F 2.

Desiccant dehumidification. La D, Dai YJ, Li Y et al () Use of regenerative evaporative cooling to improve the performance of a novel one-rotor two-stage solar desiccant dehumidification unit.

Appl. Desiccant-Based Dehumidification Unlike “cold-coil” dehumidification, which removes moisture from the air by condensing it on a cold surface, desiccant dehumidification relies on adsorption or absorption.

This EN reviews recent advances in the application of desiccant dehumidification in commercial and institutional buildings. An introduction. This book provides updates on recent developments in air conditioning systems, particularly innovative technologies in cooling and dehumidification and discusses key technologies related to cooling, include heat-driven absorption and adsorption cooling and water-based dew-point evaporative cooling.

of results for "desiccant dehumidifier" Price and other details may vary based on size and color Ivation Pint Small-Area Desiccant Dehumidifier Compact and Quiet - With Continuous Drain Hose for Smaller Spaces, Bathroom, Attic, Crawlspace and Closets - For Spaces Up To Sq Ft, White.

In fact, desiccant wheels have been increasingly applied by HVAC designers, allowing distinct processes for the air cooling and dehumidification. In fact, the ability of solid desiccants in moisture removal is effective enough to allow the use of evaporative coolers, in opposition to the traditional vapor-compression cycle, resulting in an.

Figure 3: Psychrometry of simplified desiccant dehumidification and example of a sensible cooling system A liquid desiccant dehumidifier would typically be used in series with a sensible cooling device to reduce the air’s dry-bulb temperature. Desiccant dehumidification systems often are used where the dehumidification requirement is greater than the cooling requirement.

One type, the liquid desiccant system, involves spraying a liquid desiccant solution (typically, lithium chloride) through an air stream, where it absorbs moisture from the air stream and provides some cooling. Dehumidification, together with cooling, is very effective.

For the desiccant rotor with a thickness of m, the humidity change of the process air corresponds closely to isothermal. New book: “Humidity Control Design Guide” FUNDAMENTALS - Chapter 22 - Sorbents & Desiccants SYSTEMS & EQUIPMENT - Chapter 22 - Desiccant Dehumidification Equipment Independent Publishers American Gas Cooling Center - “Desiccant System Application Guide” Munters - “The Dehumidification Handbook - 2nd Edition” Websites A compressor based dehumidifier uses a compressed refrigerant to cool metal coils (evaporator coils).

The hot humid air that enters the dehumidifier condenses on these cool coils. This leaves the air that exhausts out of the dehumidifier still warm but drier than when it entered.

Desiccant dehumidifiers work quite differently. Instead of using condensation (on Read More». desiccant dehumidification wheel and an energy recovery wheel for thermal savings. These units are cataloged percent dedicated outdoor air units or mixed-air units. CDQ technology improves the dehumidification capacity of a standard cooling coil from 20 to percent, enabling a 5-to degree lower dew point, and reduces energy.

Desiccant systems are heat-actuated cooling and dehumidification technology. With the recent advances in this technology, desiccant systems can now achieve a primary energy coefficient of performance (COP) between andwith potential to go to and higher.

It. There are two primary types of desiccant dehumidification: desiccant wheels and liquid desiccants. Learn more about when to use each one.

Emergency: Desiccant Dehumidification from Munters. Munters desiccant dehumidification systems remove moisture from the air by using a desiccant; a material which easily attracts and holds water vapor. Desiccant dehumidifiers are especially well-suited for removing moisture from air at a low temperature and low humidity level.

At the heart of these dehumidifiers is a patented desiccant wheel made up of. The rates of cooling and dehumidification were assessed under the effects of variables such as air temperature and constructed solid desiccant cooling system could reduce the outlet air temperature up to a maximum of 9°C and the relative humidity of the room also decreases gradually.Commercial Desiccant Units- When is it best?

Unlike Industrial Desiccant Dehumidifiers which are very expensive and in some cases inflexbile, a Commercial Grade Desiccant unit delivers the best performance for many applications without overdoing it which meets the application more precisely in simplicity and cost.

- Low Dewpoints are great for Chilled Beam.Desiccant-based dehumidification is especially popular for low temperature dehumidifying because there is no chance of frost developing and interrupting compressor operation. These dehumidifiers can also remove significantly more moisture with more efficiency than conventional dehumidifiers.