A study of the optimum interaction between the working fluid and the absorbent in absorption heat pump systems

✍ Scribed by M.A.R. Eisa; F.A. Holland

• Publisher: Elsevier Science
• Year: 1987
• Tongue: English
• Weight: 606 KB
• Volume: 7
• Category: Article
• ISSN: 0890-4332
• DOI: 10.1016/0890-4332(87)90075-5

✦ Synopsis

Almrsct~The operating effgiency of an absorption heat pump is critically dependent on the chemical thermophysical and thermodynamic properties of the working fluid, the absorbent and their solution. The desirable properties are discussed in the fight of the operating parameters and the thermodymunic limits. Deviations from ideality are considered with specific reference to water/salt systen~ Plots of the heat of hydration and heat of solution against the effective ionic radius, the lowering of vapour pressure against the heat of solution and the solubility against the melting point have been made for aqueous alkali metal halide solutions. It is demonstrated that an optimisation pr__ty~__ure is ~ to select tmitabk working fluid-absorbent combinations from the hundreds of po~ble combinations baaed on the operating conditions and the field of application.