Design Method for Solar Single-Double Effect Combined Absorption Chiller

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  • YABASE Hajime
    Engineering Office, Kawasaki Thermal Engineering Co., Ltd.
  • SAITO Kiyoshi
    School of Fundamental Science and Engineering, Waseda University
  • Jongsoo JEONG
    School of Fundamental Science and Engineering, Waseda University

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Other Title
  • 太陽熱一重二重効用吸収式冷凍機の設計手法の確立
  • タイヨウ ネツ ヒトエ ニジュウ コウヨウ キュウシュウシキ レイトウキ ノ セッケイ シュホウ ノ カクリツ

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Abstract

Solar single-double effect combined absorption chiller has come into wide use compared with other types of solar absorption system because it is equipped with high-efficient double effect apparatus of helping solar heat. This paper reports the machine design to enhance the performance by solar heat. So far, thermal conductance KAs of elements composed in absorption chillae have been often limited in machine design because the change of KAs means remanufacture of the test machine. Hence, easily to realize the machine design with the most efficient performance COP in the objected system, we evaluated the performance with KAs designed by simulation, which is a good way to evaluate system performance easily without empirical method and leads to design to save time. Each KA needs to be concluded under the conditions of common parameter, for example, evaporator temperature, condensation temperature, pinch temperatures of heat exchangers, etc. In the simulation result, it is clarified that the reverse flow type can be the highest performance among several types of single-double effect absorption cycle suggested.

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