By:Mehrab Lahijany


Abstract


Desiccant dehumidification technology provides a method ofdrying air before it enters a conditioned space. When combined withconventional vapor compression systems, desiccant dehumidification systems area cost-effective means of supplying cool, dry, filtered air. In the lastdecade, desiccant dehumidification technology has emerged as an alternative oras a supplement to conventional vapor compression systems for cooling andconditioning air in commercial and institutional buildings. A typical hybridsystem combines a desiccant system with a conventional vapor compressioncooling system.


Desiccant-based systems are cost-effective because they uselow-grade thermal sources to remove moisture from the air. In general, the benefitsof desiccant-based systems are greater where the thermal energy required forregenerating the desiccant is readily available, the electricity price is high,and the latent load fraction is high (>25%). If there is no difference inenergy costs, the factors that influence the economy include climate conditions(humidity's) and high outdoor-air requirements. In other situations, theimportant variables that drive the economics should be carefully evaluated.There are, however, a few applications where the technology's benefits havebeen so extensively demonstrated that no detailed analysis is required: textilestorage and manufactures spaces.



ReadFull Article



About the Author:


Author is Master of science in mechanical engineering&lrm


OriginallyPublished In New Cloth Market: March 2010