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Comparison between Kalina Cycle and Conventional OTEC System Using Ammonia-water Mixtures as Working Fluid

発表形態:
一般講演(学術講演を含む)
主要業績:
主要業績
単著・共著:
共著
発表年月:
2007年07月
DOI:
会議属性:
国際会議(国内開催を含む)
査読:
有り
リンク情報:

日本語フィールド

著者:
Hiroyuki Aso, Takeshi Yasunaga, Yasuyuki Ikegami
題名:
Comparison between Kalina Cycle and Conventional OTEC System Using Ammonia-water Mixtures as Working Fluid
発表情報:
17th International Offshore and Polar Engineering Conference
キーワード:
概要:
Ocean Thermal Energy Conversion (OTEC) plant generates electricity by using 20~27oC temperature difference between warm surface seawater at surface and cold deep seawater. OTEC is environmentfriendly and semi-permanent energy sources because its heat source is seawater warmed by the sun and no incineration,and no CO2 emission can be achieved. In this paper, it is focused on the cycle that is removed the regenerator, the absorber, and the diffuser from conventional Kalina cycle, and is returned the liquid working fluid separated with the separator to the inlet of the evaporator. The cycle was called R-cycle. It is compared Ncycle with a conventional Karina cycle by the numerical simulation. Two computational methods are used the program that is not treated the heat transfer performance of each heat exchanger, and other program that is treat the heat transfer performance of each heat exchanger and the condition of heat source. As a result, a past Kalina cycle was more efficient even though which calculation was used.
抄録:

英語フィールド

Author:
Hiroyuki Aso, Takeshi Yasunaga, Yasuyuki Ikegami
Title:
Comparison between Kalina Cycle and Conventional OTEC System Using Ammonia-water Mixtures as Working Fluid
Announcement information:
17th International Offshore and Polar Engineering Conference
An abstract:
Ocean Thermal Energy Conversion (OTEC) plant generates electricity by using 20~27oC temperature difference between warm surface seawater at surface and cold deep seawater. OTEC is environmentfriendly and semi-permanent energy sources because its heat source is seawater warmed by the sun and no incineration,and no CO2 emission can be achieved. In this paper, it is focused on the cycle that is removed the regenerator, the absorber, and the diffuser from conventional Kalina cycle, and is returned the liquid working fluid separated with the separator to the inlet of the evaporator. The cycle was called R-cycle. It is compared Ncycle with a conventional Karina cycle by the numerical simulation. Two computational methods are used the program that is not treated the heat transfer performance of each heat exchanger, and other program that is treat the heat transfer performance of each heat exchanger and the condition of heat source. As a result, a past Kalina cycle was more efficient even though which calculation was used.


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