Performance evaluation of multi-stage, multi-bed adsorption chiller employing re-heat scheme
Abstract
This paper deals with the performance investigation of a silica gel/water-based multi-stage, multi-bed, six-bed adsorption chiller employing re-heat scheme. The innovative chiller is powered by waste heat or renewable energy sources of temperature between 50 and 70 °C along with a coolant of inlet temperature at 30 °C for air-conditioning purpose. The performance of the six-bed adsorption chiller using re-heat scheme is compared with that of the six-bed chiller without re-heat. With the same operating conditions, such as the heat transfer fluid inlet (HTF) temperatures, HTF flow rates, adsorption/desorption cycle time and same chiller physical dimension, it is found that both the cooling capacity (CC) and the coefficient of performance (COP) of the three-stage chiller with re-heat scheme are superior than those of the three-stage chiller without re-heat scheme.
- Publication:
-
Renewable Energy
- Pub Date:
- January 2008
- DOI:
- 10.1016/j.renene.2007.01.012
- Bibcode:
- 2008REne...33...88K
- Keywords:
-
- Re-heat scheme;
- Renewable energy utilization;
- Silica gel/water;
- Three-stage chiller;
- Thermal capacitance ratio