The increasing concern with indoor air quality has led to
air-quality standards with increased ventilation rates. Although
increasing the volume flow rate of outside air is advisable from
the perspective of air-quality, it is detrimental to energy
consumption, since the outside air has to be brought to the comfort
condition before it is insufflated to theconditioned ambient.
Moreover, the humidity load carried within outside air has
challenging HVAC engineers to design cooling units which are able
to satisfactorily handle both sensible and latent contributions to
the thermal load. This constitutes a favorable scenario for the use
of solid desiccants to assist the cooling units. 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 ecologically sound system which uses only water as the
refrigerant.
"Desiccant Assisted Cooling: Fundamentals and" "Applications"
presents different approaches to the mathematical modeling and
simulation of desiccant wheels, as well as applications in thermal
comfort and humidity controlled environments. Experts in the field
discuss topics from enthalpy, lumped models for heat and mass
transfer, and desiccant assisted radiant cooling systems, among
others.
Aimed at air-conditioning engineers and thermal engineering
researchers, this book can also be used by graduate level students
and lecturers in the field."
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