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A heat pump evaporator using the falling film technique

Anders Åsblad (Institutionen för värmeteknik och maskinlära) ; Thore Berntsson (Institutionen för värmeteknik och maskinlära)
2nd International Symposium on "The large scale applications of heat pumps", York, England: 25-27 September Vol. 1984 (1984), B2, p. 51-62.
[Konferensbidrag, övrigt]

This paper presents a new heat pump evaporator. The evaporator is a vertical shell-and-tube heat exchanger utilizing the falling film principle on both the shell and the tube side. The advantages with this arrangement are: - Dirty water can be used since the evaporator can be cleaned without shutting down the unit. - Low pressure drops. - High heat transfer coefficients. - Relatively low investment cost. Measurements of the heat transfer for the evaporation of pure R12 (no oil contamination) gave length average heat transfer coefficients in the range of 2000-5000 W/m2K depending on the heat flux.



Denna post skapades 2012-01-12.
CPL Pubid: 152643

 

Institutioner (Chalmers)

Institutionen för värmeteknik och maskinlära (1949-2002)

Ämnesområden

Kemiteknik

Chalmers infrastruktur