doi: 10.3850/978-981-08-7614-2_IMPRES005


Experimental Study on A Three-bed Adsorption Chiller


Md. Zafar Iqbal Khan1, Bidyut B. Saha2 and Atsushi Akisawa3

1Department of Mathematics, Bangladesh University of Engineering and Technology (BUET), Bangladesh.

zikhan@math.buet.ac.bd

2Mechanical Engineering Department, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka-shi, Fukuoka 819-0395, Japan

3Graduate School of Bio-Application and System Engineering, Tokyo University of A & T, 2-24-16, Naka-machi, Koganei-shi, Tokyo 184-8588, Japan

ABSTRACT

This article presents the experimental results of a three-bed advanced adsorption chiller using silica gel-water as the adsorbent-refrigerant pair. The three-bed adsorption chiller comprises with three sorption elements (Hexs), one evaporator and one condenser. In the present study, the heat source temperature varying from 55 °C to 80 °C along with coolant inlet temperature at 30 °C and the chilled water inlet temperature at 14 °C. Mass recovery process occurs between Hex1 and Hex2 and no mass recovery with Hex3. The performances in terms of cooling capacity (CC) and coefficient of performance (COP) are compared with those of conventional three-bed without mass recovery scheme. Results show that three-bed with mass recovery(WMR) scheme provides more CC values than those provided by the three-bed system without mass recovery (WOMR) scheme while it provides better COP values for 65-75 °C heat source temperature.

Keywords: Adsorption, Mass Recovery, Cooling Capacity, COP.


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