Performance of evaporator collector and air collector in a solar assisted heat pump dryer

A solar assisted heat pump dryer has been designed, fabricated and tested. This paper presents the performance of evaporator-collector and air collector, when operated under same meteorological conditions. ASHRAE standard procedure of collector testing has been followed. The absorber platce of the...

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Main Authors:	Rahman, S. M. A., Hawlader, Mohammad Nurul Alam
Format:	Book Chapter
Language:	English
Published:	IIUM Press 2011
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://irep.iium.edu.my/20098/ http://irep.iium.edu.my/20098/ http://irep.iium.edu.my/20098/1/performance_of_evaporator_-_C35.pdf

id	iium-20098
recordtype	eprints
spelling	iium-200982012-06-07T00:08:22Z http://irep.iium.edu.my/20098/ Performance of evaporator collector and air collector in a solar assisted heat pump dryer Rahman, S. M. A. Hawlader, Mohammad Nurul Alam TJ Mechanical engineering and machinery A solar assisted heat pump dryer has been designed, fabricated and tested. This paper presents the performance of evaporator-collector and air collector, when operated under same meteorological conditions. ASHRAE standard procedure of collector testing has been followed. The absorber platce of the evaporator-collector is made of copper plate painted black without any glazing. At the bottom of the absorber plate, a tube has been soldered in serpentine form. Areas of the evaporator-collector and air collector are 1.5 m2 and 1.24 m2, respectively. The evaporator-collector of the heat pump is acting directly as the solar collector and the temperature of refrigerant at the inlet to the evaporator-collector always remained below the ambient temperature. Due to rejection of sensible and latent heat of air at the dehumidifier. the temperature at the inlet to the air collector is lower than the ambient air. Hence, the thermal efficieney of the air collector also increases due to a reduction of losses from the collector. The efficiency of evaporator-collector and air collector varied between 0.8 - 0.86 and 0.7 - 0.75, respectively. IIUM Press 2011 Book Chapter PeerReviewed application/pdf en http://irep.iium.edu.my/20098/1/performance_of_evaporator_-_C35.pdf Rahman, S. M. A. and Hawlader, Mohammad Nurul Alam (2011) Performance of evaporator collector and air collector in a solar assisted heat pump dryer. In: Alternative energy. IIUM Press, Kuala Lumpur, pp. 269-282. ISBN 9789674181581 http://rms.research.iium.edu.my/bookstore/default.aspx
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Rahman, S. M. A. Hawlader, Mohammad Nurul Alam Performance of evaporator collector and air collector in a solar assisted heat pump dryer
description	A solar assisted heat pump dryer has been designed, fabricated and tested. This paper presents the performance of evaporator-collector and air collector, when operated under same meteorological conditions. ASHRAE standard procedure of collector testing has been followed. The absorber platce of the evaporator-collector is made of copper plate painted black without any glazing. At the bottom of the absorber plate, a tube has been soldered in serpentine form. Areas of the evaporator-collector and air collector are 1.5 m2 and 1.24 m2, respectively. The evaporator-collector of the heat pump is acting directly as the solar collector and the temperature of refrigerant at the inlet to the evaporator-collector always remained below the ambient temperature. Due to rejection of sensible and latent heat of air at the dehumidifier. the temperature at the inlet to the air collector is lower than the ambient air. Hence, the thermal efficieney of the air collector also increases due to a reduction of losses from the collector. The efficiency of evaporator-collector and air collector varied between 0.8 - 0.86 and 0.7 - 0.75, respectively.
format	Book Chapter
author	Rahman, S. M. A. Hawlader, Mohammad Nurul Alam
author_facet	Rahman, S. M. A. Hawlader, Mohammad Nurul Alam
author_sort	Rahman, S. M. A.
title	Performance of evaporator collector and air collector in a solar assisted heat pump dryer
title_short	Performance of evaporator collector and air collector in a solar assisted heat pump dryer
title_full	Performance of evaporator collector and air collector in a solar assisted heat pump dryer
title_fullStr	Performance of evaporator collector and air collector in a solar assisted heat pump dryer
title_full_unstemmed	Performance of evaporator collector and air collector in a solar assisted heat pump dryer
title_sort	performance of evaporator collector and air collector in a solar assisted heat pump dryer
publisher	IIUM Press
publishDate	2011
url	http://irep.iium.edu.my/20098/ http://irep.iium.edu.my/20098/ http://irep.iium.edu.my/20098/1/performance_of_evaporator_-_C35.pdf
first_indexed	2023-09-18T20:30:09Z
last_indexed	2023-09-18T20:30:09Z
_version_	1777408681243049984

Performance of evaporator collector and air collector in a solar assisted heat pump dryer

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