TY - JOUR
T1 - Experimental study on performance improvement of a four-bed adsorption chiller by using heat and mass recovery
AU - Ng, Kim Choon
AU - Wang, Xiaolin
AU - Lim, Yee Sern
AU - Saha, Bidyut Baran
AU - Chakarborty, Anutosh
AU - Koyama, Shigeru
AU - Akisawa, Atsushi
AU - Kashiwagi, Takao
PY - 2006/9
Y1 - 2006/9
N2 - The efficacy of a four-bed adsorption chiller has been studied experimentally with respect to a simple but yet effective passive heat and mass recovery schemes. It substantially improves the adsorption chiller COP by as much as 30% over a broad range of cycle time with a wide heat source, coolant and chilled water temperatures. Two schemes have been considered here: Firstly, only the mass recovery is achieved by pressure equalization between the concomitantly cooled adsorber and heated desorber, exploiting the intrinsic vapor-uptake potential by pressure swing that remains in the adsorbent at the end of a half-cycle. Secondly, when both the heat and mass recovery schemes are employed at a rating point of maximum cooling capacity, the chiller COP could increase further to as much as 48%. These improvements are performed without additional hardware changes to the adsorption chiller.
AB - The efficacy of a four-bed adsorption chiller has been studied experimentally with respect to a simple but yet effective passive heat and mass recovery schemes. It substantially improves the adsorption chiller COP by as much as 30% over a broad range of cycle time with a wide heat source, coolant and chilled water temperatures. Two schemes have been considered here: Firstly, only the mass recovery is achieved by pressure equalization between the concomitantly cooled adsorber and heated desorber, exploiting the intrinsic vapor-uptake potential by pressure swing that remains in the adsorbent at the end of a half-cycle. Secondly, when both the heat and mass recovery schemes are employed at a rating point of maximum cooling capacity, the chiller COP could increase further to as much as 48%. These improvements are performed without additional hardware changes to the adsorption chiller.
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U2 - 10.1016/j.ijheatmasstransfer.2006.01.053
DO - 10.1016/j.ijheatmasstransfer.2006.01.053
M3 - Article
AN - SCOPUS:33745430417
VL - 49
SP - 3343
EP - 3348
JO - International Journal of Heat and Mass Transfer
JF - International Journal of Heat and Mass Transfer
SN - 0017-9310
IS - 19-20
ER -