Optimal Design of a Fin-type Silica Gel Tube Module in the Silica Gel/Water Adsorption Heat Pump

2004 ◽  
Vol 37 (4) ◽  
pp. 551-557 ◽  
Author(s):  
Jianfang Li ◽  
Mitsuhiro Kubota ◽  
Fujio Watanabe ◽  
Noriyuki Kobayashi ◽  
Masanobu Hasatani
Keyword(s):  
Optimal Design ◽  
Heat Pump ◽  
Silica Gel ◽  
Water Adsorption ◽  
Adsorption Heat ◽  
Adsorption Heat Pump

Two-Stage Non-Regenerative Silica Gel-Water Adsorption Refrigeration Cycle

2000 ◽  
Author(s):  
B. B. Saha ◽  
K. C. A. Alam ◽  
A. Akisawa ◽  
T. Kashiwagi ◽  
K. C. Ng ◽  
...  
Keyword(s):  
Heat Pump ◽  
Silica Gel ◽  
Water Adsorption ◽  
Waste Heat ◽  
Cooling Capacity ◽  
Coefficient Of Performance ◽  
Adsorption Refrigeration ◽  
Two Stage ◽  
Adsorption Chiller ◽  
Adsorption Heat Pump

Abstract Over the past two decades there have been considerable efforts to use adsorption (solid/vapor) for cooling and heat pump applications, but intensified efforts were initiated only since the imposition of international restrictions on the production and use of CFCs (chlorofluorocarbons) and HCFCs (hydrochlorofluorocarbons). Closed-type, conventional adsorption refrigeration and heat pump systems have an increasing market share in Japan. In this paper, a two-stage non-regenerative, silica gel-water adsorption chiller design is outlined. Experimental measurements are performed on a prototype of a 3.5 kW rated cooling capacity adsorption heat pump in order to determine its performance under different operating temperatures (hot, cooling and chilled water). The chiller performance is analyzed in terms of cooling capacity and coefficient of performance (COP). The main innovative feature in the two-stage adsorption chiller is the ability to utilize low-temperature waste heat (∼55°C) as the driving source with a cooling source of 30°C. The technological difficulty inherent in operating a thermally activated cycle with such a small regenerating temperature lift (temperature difference between heat source and heat sink inlets) is overcome by use of a two-stage cycle.

Cooling output performance of a prototype adsorption heat pump with fin-type silica gel tube module

2008 ◽  
Vol 28 (2-3) ◽  
pp. 87-93 ◽  
Author(s):  
Mitsuhiro Kubota ◽  
Takeshi Ueda ◽  
Ryo Fujisawa ◽  
Jun Kobayashi ◽  
Fujio Watanabe ◽  
...  
Keyword(s):  
Heat Pump ◽  
Silica Gel ◽  
Adsorption Heat ◽  
Output Performance ◽  
Adsorption Heat Pump

scholarly journals Heat Transfer Characteristics of Adsorption Heat Pump using Packed Silica Gel Module.

2000 ◽  
Vol 26 (3) ◽  
pp. 483-485 ◽  
Author(s):  
MUTSUHIRO ITO ◽  
RYOU FUJISAWA ◽  
FUJIO WATANABE ◽  
MASANOBU HASATANI
Keyword(s):  
Heat Transfer ◽  
Heat Pump ◽  
Silica Gel ◽  
Adsorption Heat ◽  
Heat Transfer Characteristics ◽  
Transfer Characteristics ◽  
Adsorption Heat Pump

Numerical Simulation for Steam Generation Process in a Novel Zeolite^|^#8211;Water Adsorption Heat Pump

2012 ◽  
Vol 45 (6) ◽  
pp. 408-416 ◽  
Author(s):  
Bing Xue ◽  
Keisuke Tahara ◽  
Kazuya Nakashima ◽  
Atsushi Noda ◽  
Erfina Oktariani ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Heat Pump ◽  
Water Adsorption ◽  
Adsorption Heat ◽  
Generation Process ◽  
Steam Generation ◽  
Adsorption Heat Pump
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