Effect of packing density and adsorption parameters on the throughput of a thermal compressor

Akkimaradi, BS and Prasad, M and Dutta, P and Srinivasan, K (2002) Effect of packing density and adsorption parameters on the throughput of a thermal compressor. In: Carbon, 40 (15). pp. 2855-2859.

PDF E_ffect_of_packing_density.pdf - Published Version Restricted to Registered users only Download (139kB) | Request a copy

Abstract

Vapour adsorption refrigeration systems (VAdS) have the advantage of scalability over a wide range of capacities ranging from a few watts to several kilowatts. In the first instance, the design of a system requires the characteristics of the adsorbate-adsorbent pair. Invariably, the void volume in the adsorbent reduces the throughput of the thermal compressor in a manner similar to the clearance volume in a reciprocating compressor. This paper presents a study of the activated carbon +HFC-134a (1,1,1,2-tetrafluoroethane) system as a possible pair for a typical refrigeration application. The aim of this study is to unfold the nexus between the adsorption parameters, achievable packing densities of charcoal and throughput of a thermal compressor. It is shown that for a thermal compressor, the adsorbent should not only have a high surface area, but should also be able to provide a high packing density. Given the adsorption characteristics of an adsorbent-adsorbate pair and the operating conditions, this paper discloses a method for the calculation of the minimum packing density necessary for an effective throughput of a thermal compressor. (C) 2002 Elsevier Science Ltd. All rights reserved.

Item Type:	Journal Article
Publication:	Carbon
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Keywords:	A.Activated carbon;C.Adsorption;D.Density
Department/Centre:	Division of Mechanical Sciences > Mechanical Engineering
Date Deposited:	20 Jul 2011 08:42
Last Modified:	20 Jul 2011 08:42
URI:	http://eprints.iisc.ac.in/id/eprint/39157

Actions (login required)

View Item