Adsorption properties of a natural zeolite-water pair for use in adsorption cooling cycles

Opened in 2003 with the aim to graduate experts in the field of machine-production, our Department is among the firsts in our country to offer education in English. The Manufacturing Engineering program focuses on the manufacturing technologies that shape materials from raw materials to final products by means of analytical, experimental and numerical modeling methods. First Manufacturing Engineering Program to be engineered by Müdek, our department aims to graduate creative and innovative Manufacturing Engineers that are knowledgeable in the current technology, and are able to use production resources in an effective and sustainable way that never disregards environmental facts. As the first Department to implement the Cooperative Education Program at Atılım University in coordination with institutions from the industry, the Manufacturing Engineering offers a practice-oriented approach in education with its laboratory infrastructure and research opportunities. The curriculum at our department is supported by current engineering software, and catered to creating engineers equipped to meet the needs of the production industry.

Abstract

The equilibrium adsorption capacity of water on a natural zeolite has been experimentally determined at different zeolite temperatures and water vapor pressures for use in an adsorption cooling system. The Dubinin-Astakhov adsorption equilibrium model is fitted to experimental data with an acceptable error limit. Separate correlations are obtained for adsorption and desorption processes as well as a single correlation to model both processes. The isosteric heat of adsorption of water on zeolite has been calculated using the Clausius-Clapeyron equation as a function of adsorption capacity. The cyclic adsorption capacity swing for different condenser, evaporator and adsorbent temperatures is compared with that for the following adsorbent-refrigerant pairs: activated carbon-methanol; silica gel-water; and, zeolite 13X-water. Experimental results show that the maximum adsorption capacity of natural zeolite is nearly 0.12 kg(w)/kg(ad) for zeolite temperatures and water vapor pressures in the range 40-150 degrees C and 0.87-738 kPa. (C) 2009 Elsevier Ltd. All rights reserved.

Description

Solmaz, Ismail/0000-0002-3020-4798; Baker, Derek/0000-0003-4163-1821; Caglar, Ahmet/0000-0003-2788-2659

ORCID

Solmaz, Ismail

Baker, Derek

Caglar, Ahmet

Keywords

Adsorption, Cooling, Natural zeolite-water, Isosteric heat of adsorption

Citation

73

WoS Q

Q1

Volume

87

Issue

6

Start Page

2062

End Page

2067

URI

https://doi.org/10.1016/j.apenergy.2009.11.027
https://hdl.handle.net/20.500.14411/1588

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Adsorption properties of a natural zeolite-water pair for use in adsorption cooling cycles

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