Books > Professional & Technical > Civil engineering, surveying & building > Building construction & materials > Heating, lighting, ventilation
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Design, Modeling, Manufacturing & Performance Evaluation of a Solar-Powered Single-Effect Absorption Cooling System (Hardcover)
Loot Price: R3,956
Discovery Miles 39 560
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Design, Modeling, Manufacturing & Performance Evaluation of a Solar-Powered Single-Effect Absorption Cooling System (Hardcover)
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Book & CD. Conventional HVAC systems rely heavily on energy
generated from fossil fuels, which are being rapidly depleted. This
-- together with a growing demand for cost-effective infrastructure
and appliances has necessitated new installations and major
retrofits in occupied buildings to achieve energy efficiency and
environmental sustainability. As such, the development of clean
energy air conditioning units remains an urgent engineering
challenge. Solar HVAC systems, which convert thermal energy into
cool air, are known to be an efficient source of heating and
cooling. Unlike traditional HVAC systems, solar air conditioning
units produce maximum cooling capacity when the sun is fierce; that
is, they are most efficient during the hottest part of the day, in
stark contrast to traditional air conditioning units, which are
less effective as temperatures increase. This book represents a
synergetic framework of system identification, design, development
and performance evaluation for a newly-configured air conditioning
system to target energy efficiency and environmental sustainability
in buildings. In this study, we have originally designed and
developed a single-effect lithium bromide (LiBr)-water absorption
air-conditioning system, in which hot water is fully supplied by
vacuum solar collectors without using any other energy sources such
as gas or electricity. The water-cooled condenser of the chiller is
supported by a cross-flow cooling tower. In this system, by using
water as the working fluid (refrigerant), one can avoid the use of
ozone-depletion chlorofluorocarbons and hydro chlorofluorocarbons.
Thermodynamic and heat transfer models for absorption chiller
components are described in detail. Using these models, a computer
simulation software named ABSYS is developed to design the
absorption chiller and drive its optimum operating conditions.
Thermodynamic design data for single-effect absorption chillers are
presented together with the possible combinations of the operating
temperatures and the corresponding concentrations in the absorber
and generator. The effect of various operating conditions on the
performance and output of the absorption refrigeration system are
then evaluated. Another computer code is developed by using TRNSYS
to evaluate the transient performance of the entire system. Several
field tests are carried out to demonstrate the technical
feasibility of the system. The utilisation of the solar energy as
the heat input to the generator of the absorption chiller is
reported. This proposed design can be helpful to accelerate a
global clean society to achieve its sustainable targets.
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