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The Compression/Absorption cycle: A high-temperature application

Lena Åhlby (Institutionen för värmeteknik och maskinlära) ; David Hodgett (Institutionen för värmeteknik och maskinlära)
BHRA International Conference on Application and Efficiency of Heat Pump Systems in Environmentally Sensitive Times Vol. München, Germany (1990), 1-3 October 1990, p. 15.
[Konferensbidrag, övrigt]

A comparison of the performances of a compression/absorption cycle using the two mixtures NH3/H2O and NH3/H2O-60% LiBr shows an improvement in COP for the ternary working fluid. The improvement, however, is small; for the examples chosen it is about 5%. The advantages of the ternary mixture, such as a lower vapour pressure, a higher heat of vaporization and a reduced specific heat of solution, compared to the binary NH3/H2O, are to a large extent eliminated by the increase of the recirculation flow caused by the addition of salt Another effect of the increase in solution flow is a change in the location of the optimum operating point for the ternary compared to the binary mixture.



Denna post skapades 2011-12-15.
CPL Pubid: 150194

 

Institutioner (Chalmers)

Institutionen för värmeteknik och maskinlära (1949-2002)

Ämnesområden

Kemiska processer

Chalmers infrastruktur