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- 저자 : YOSHINORI HAMAMOTO (검색결과 2 건)
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Research and Development of the Triple Effect Absorption Chiller-Heater Technology in Japan
Kashiwagi, Takao,Akisawa, Atsushi,Hamamoto, Yoshinori The Society of Air-Conditioning and Refrigerating 2004 설비저널 Vol.33 No.3
This article reviews R&D of triple effect cycle developed in Japan. Most of the refrigeration and heat pump technologies are dominated by vapor compressor system. The vapor compressor system, however, is highly concerned with the environmental regulations , as most of the vapor compressor technologies are using CFCs or HCFCs which are known as ozone depleting and global warming gases. As a consequence, refrigeration technologists are trying to invent or to develop an alternative to vapor compressor refrigeration devices. Thermally driven, absorption technology is one of the possible alternatives. At the moment, absorption cycle is most promising technology The paper summarizes briefly the current research and development in advanced technologies of triple effect absorption chiller-heater in Japan.(omitted)
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FUEL CELL WASTE HEAT POWERED ADSORPTION COOLING SYSTEMS
SEUNG TAEK OH,BIDYUT BARAN SAHA,KEISHI KARIYA,YOSHINORI HAMAMOTO,HIDEO MORI 대한설비공학회 2013 International Journal Of Air-Conditioning and Refr Vol.21 No.2
In the present paper, the e®ect of desorption temperature on the performance of adsorption cooling systems driven by waste heat from fuel cells was analyzed. The studied adsorption cooling systems employ activated carbon ¯ber (ACF) of type A-20ethanol and RD type silica gelwater as adsorbentrefrigerant pairs. Two di®erent temperature levels of waste heat from polymer electrolyte fuel cell (PEFC) and solid oxide fuel cell (SOFC) are used as the heat source of the adsorption cooling systems. The adsorption cycles consist of one pair of adsorptiondesorption heat exchanger, a condenser and an evaporator. System performance in terms of speci¯c cooling capacity (SCC) and coe±cient of performance (COP) are determined and compared between the studied two systems. Results show that silica gelwater based adsorption cooling system is preferable for e®ective utilization of relatively lower temperature heat source. At relatively high temperature heat source, COP of ACFethanol based adsorption system shows better performance than that of silica gelwater based adsorption system.
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