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2013 | OriginalPaper | Chapter

44. Exergy Analysis and Environmental Impact Assessment of Solar-Driven Heat Pump Drying Systems

Authors : Hasan Ozcan, Ibrahim Dincer

Published in: Causes, Impacts and Solutions to Global Warming

Publisher: Springer New York

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Abstract

Exergy and sustainability analysis and environmental impact assessment of drying processes are performed for conventional and solar-driven two-stage evaporator heat pump drying systems. Some parametric studies are also undertaken to investigate the influence of environmental and system parameters on the overall efficiencies. Greenhouse gas (GHG) emissions, for electricity generation are comparatively evaluated under various options. Coal-based generation has the highest emissions for both conventional and solar-driven drying systems and lowest emissions are observed for nuclear and solar photovoltaic based electricity generation. The results show that solar thermal integration to the heat pump drying system brings an additional 32 gCO2/kWh carbon dioxide emission due to production, transportation, maintenance, and disposal of the solar thermal system. However, GHG emissions from conventional HPD system are 20.4–34.1 % higher than those of solar-driven HPD system for different generation resources.

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Metadata
Title
Exergy Analysis and Environmental Impact Assessment of Solar-Driven Heat Pump Drying Systems
Authors
Hasan Ozcan
Ibrahim Dincer
Copyright Year
2013
Publisher
Springer New York
DOI
https://doi.org/10.1007/978-1-4614-7588-0_44