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Absorption-resorption heating cycles with the new working pairs R21-NMP and R21-DMA

Author(s) : BHATT M. S., SRINIVASAN K., KRISHNA MURTHY M. V., SEETHARAMU S.

Type of article: Article

Summary

The new working pairs, R21-NMP and R21-DMA, find potential applications as working pairs for the single-stage resorption heat pump and the resorption heat transformer cycles. A thermodynamic cycle analysis with these pairs shows that single-stage resorption heat pumps have high COPs in their entire range of operation. Resorption heat transformers show higher temperature boosts (up to 47 K) than the simple absorption heat transformers. Absorber temperatures of up to 400 K can be achieved in a single-stage resorption heat transformer system using R21 as the refrigerant. However, absorption-resorption systems have inherent limitations on the range of operating temperatures. Besides, they necessitate a higher pump work as compared to simple single-stage absorption heating systems.

Details

  • Original title: Absorption-resorption heating cycles with the new working pairs R21-NMP and R21-DMA
  • Record ID : 1995-3184
  • Languages: English
  • Source: Energy Conversion and Management - vol. 35 - n. 5
  • Publication date: 1994

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