图书馆订购 Guest

ISSN Online: 2379-1748

ISBN Flash Drive: 978-1-56700-469-4

ISBN Online: 978-1-56700-470-0

Second Thermal and Fluids Engineering Conference
April, 2-5, 2017, Las Vegas, NV, USA

TRANSIENT NUMERICAL STUDY OF NOVEL COMPOSITE ADSORBENT FOR COOLING APPLICATIONS

Get access (open in a dialog) pages 37-46
DOI: 10.1615/TFEC2017.aes.018467

摘要

Adsorption chillers can utilize low grade thermal energy, replacing the mechanical compression process of conventional chillers with thermal compression. However, majority of the adsorption chillers developed are bulky due to low volumetric uptake and poor heat transfer. This paper uses an activated carbon based composite adsorbent to mitigate the above mentioned drawbacks. This composite contains expanded graphite as thermal conductivity enhancer. A 2-dimensional transient thermal analysis is employed to simulate the adsorption dynamics of ethanol (refrigerant) on the composite adsorbent and loosely packed parent activated carbon powder. The comparative study reveals that the use of composite adsorbent leads to multi-fold rise in volumetric cooling capacity and a marginal increase in coefficient of performance when compared to parent material. Thus, use of composite adsorbents can potentially lead to the development of compact and efficient adsorption chillers.