ADSORPTION COOLING CYCLES FOR ADSORBENT/ADSORBATE PAIRS AT ASSORTED OPERATING PRESSURES
This paper presents the performance analysis of an ideal heat driven adsorption cooling cycle in both low and high operating pressures. Six specimen of adsorbents and refrigerant pairs such that activated carbon fiber (ACF) of type (A-15)/ethanol, ACF (A-20)/ethanol, silica gel/water, Chemviron/R134a, Fluka/R134a and Maxsorb Ⅱ/R134a have been investigated. The relationships between equilibrium pressures, adsorbent temperatures and equilibrium adsorption concentrations (P-T-W diagram) have been presented. Parametric analysis has been carried out with various regeneration (desorption) and evaporating temperatures. Theoretical analysis shows that the ACF (A-20)/ethanol can achieve a specific cooling effect (SCE) of 344 kJ/kg_adsorbent at regeneration temperature 85℃. Moreover, the ACF (A-20)/ethanol exhibit a coefficient of performance (COP) of 0.7 and is followed by the silica gel/water pair with COP of 0.68 at low regeneration temperature (below 100℃).
Wai Soong Loh Jingming HE Ibrahim I.El-Sharkawy Christopher Yap Kim Choon Ng Bidyut Baran Saha Shigeru Koyama
Department of Mechanical Engineering, National University of Singapore 10 Kent Ridge Crescents, Sing Interdisciplinary Graduate School of Engineering Sciences, Kyushu University Kasuga-koen 6-1, Kasuga
国际会议
The 22nd International Congress of Refrigeration(第22届国际制冷大会)
北京
英文
2007-08-21（万方平台首次上网日期，不代表论文的发表时间）