TEWI Assessment of Conventional and Solar Powered Cooling Systems

研究成果: 書籍/レポート タイプへの寄稿

6 被引用数 (Scopus)

抄録

Conventional cooling and refrigeration systems already evolved to efficient design, have higher COP and compact size. However, the compressor section of such system consumes a tremendous amount of electricity and contribute indirectly to global warming. The working fluids of these systems are typically HFC or HFC blends which possess very high global warming potential. A significant percentage of working fluid is leaked from the high-pressure side of the system and directly contribute to global warming. The summation of indirect and direct warming impact, namely, total equivalent warming impact (TEWI) of the vapour compression cooling systems are significantly high. Adsorption cooling system (ACS) can resolve this critical issue. In ACS, the mechanical compressor of the traditional cooling system is replaced by a thermal compressor, namely, a pair of adsorption beds. Highly porous adsorbent material (silica gel, activated carbon, zeolite and so forth) is the key component of an adsorption bed. These materials have the capability to capture and hold certain types of fluid. This phenomenon is known as adsorption. Upon heating, the adsorbed fluid is liberated from the pores (desorption process) and gets thermally compressed. Solar thermal energy is the most prospective option for the desorption process to occur. Since there is no mechanical compressor, electricity consumption is deficient, which significantly minimizes the indirect warming impact. Moreover, natural or alternative refrigerants are used as the working fluid, which has zero/negligible GWP. Hence, the direct warming impact is also shallow. In this chapter, the working principle and governing equations of a solar energy driven adsorption cooling system will be elaborated. Besides, TEWI assessment procedure will be explained and compared for both vapour compression and adsorption cooling systems.

本文言語英語
ホスト出版物のタイトルEnergy, Environment, and Sustainability
出版社Springer Nature
ページ147-177
ページ数31
DOI
出版ステータス出版済み - 2020

出版物シリーズ

名前Energy, Environment, and Sustainability
ISSN(印刷版)2522-8366
ISSN(電子版)2522-8374

!!!All Science Journal Classification (ASJC) codes

  • 再生可能エネルギー、持続可能性、環境
  • 自動車工学
  • 環境工学

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