TY - JOUR
T1 - Experimental study on performance improvement of a four-bed adsorption chiller by using heat and mass recovery
AU - Ng, K.C.
AU - Wang, Xiaolin
AU - Lim, S.R.
AU - Saha, B.B.
AU - Chakarborty, A.
AU - Koyama, S.
AU - Akisawa, A.
AU - Kashiwagi, T.
PY - 2006
Y1 - 2006
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. (c) 2006 Elsevier Ltd. All rights reserved.
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. (c) 2006 Elsevier Ltd. All rights reserved.
U2 - 10.1016/j.ijheatmasstransfer.2006.01.053
DO - 10.1016/j.ijheatmasstransfer.2006.01.053
M3 - Article
SN - 0017-9310
VL - 49
SP - 3343
EP - 3348
JO - International Journal of Heat and Mass Transfer
JF - International Journal of Heat and Mass Transfer
IS - 19-20
ER -