Please use this identifier to cite or link to this item: http://dx.doi.org/10.14279/depositonce-4871
Main Title: Experimental results and model calculations of a hybrid adsorption-compression heat pump based on a roots compressor and silica gel-water sorption
Author(s): van der Pal, Michel
de Boer, Robert
Wemmers, Anton
Smeding, Simon
Veldhuis, Jakobert
Lycklama a Nijeholt, Jan-Aiso
Type: Book Part
Language: English
Language Code: en
Abstract: Thermally driven sorption systems can provide significant energy savings, especially in industrial applications. The driving temperature for operation of such systems limits the operating window and can be a barrier for market-introduction. By adding a compressor, the sorption cycle can be run using lower waste heat temperatures. ECN has recently started the development of such a hybrid heat pump. The final goal is to develop a hybrid heat pump for upgrading lower (<100⁰C) temperature industrial waste heat to above pinch temperatures. The paper presents the first measurements and model calculations of a hybrid heat pump system using a water-silica gel system combined with a Roots type compressor. From the measurements can be seen that the effect of the compressor is dependent on where in the cycle it is placed. When placed between the evaporator and the sorption reactor, it has a considerable larger effect compared to the compressor placed between the sorption reactor and the condenser. The latter hardly improves the performance compared to purely heat-driven operation. This shows the importance of studying the interaction between all components of the system. The model, which shows reasonable correlation with the measurements, could proof to be a valuable tool to determine the optimal hybrid heat pump configuration.
URI: urn:nbn:de:kobv:83-opus4-61978
http://depositonce.tu-berlin.de/handle/11303/5168
http://dx.doi.org/10.14279/depositonce-4871
Issue Date: 2013
Date Available: 16-Jan-2015
DDC Class: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
Subject(s): Absorption
Adsorption
Chiller
Compressor
Heat pump
Hybrid
Sorption
Thermally driven
Usage rights: Terms of German Copyright Law
Book Title: Thermally driven heat pumps for heating and cooling
Publisher: Universitätsverlag der TU Berlin
Publisher Place: Berlin
Page Start: 161
Page End: 171
Notes: Part of: Thermally driven heat pumps for heating and cooling. – Ed.: Annett Kühn – Berlin: Universitätsverlag der TU Berlin, 2013 ISBN 978-3-7983-2686-6 (print) ISBN 978-3-7983-2596-8 (online) urn:nbn:de:kobv:83-opus4-39458 [http://nbn-resolving.de/urn:nbn:de:kobv:83-opus4-39458]
Appears in Collections:Technische Universität Berlin » Zentrale Einrichtungen » Publications

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