scholarly journals Study and testing of direct contact heat exchangers for geothermal brines. Phase II, August 1976--June 1977

1978 ◽  
Author(s):  
W.B. Suratt ◽  
C.O. Lee
Keyword(s):  
Phase Ii ◽  
Heat Exchangers ◽  
Direct Contact ◽  
Contact Heat

Design and Evaluation of Evaporating Lens Direct Contact Heat Exchangers

1981 ◽  
Vol 103 (2) ◽  
pp. 128-132 ◽  
Author(s):  
C. A. Kodres ◽  
H. R. Jacobs ◽  
R. F. Boehm
Keyword(s):  
Heat Flux ◽  
Heat Exchanger ◽  
Heat Exchangers ◽  
Direct Contact ◽  
Lens Model ◽  
Contact Heat ◽  
Geothermal Heat ◽  
Single Lens ◽  
Explicit Procedure ◽  
Direct Contact Heat Exchanger

An explicit procedure for analyzing a superheated, evaporating lens direct contact heat exchanger has been developed. This method is based upon the application of a dimensional analysis derivation of a relationship for the heat flux from a single evaporating lens. Several suggestions are offered for use in the design of these devices. To estimate the error introduced by extrapolating a single lens model to represent a system of lenses, the method is used to “design” two operating geothermal heat exchangers. A difference of about 16 percent is observed between the calculated and measured overall heat flux.

Experimental and numerical study of direct contact heat exchangers

1985 ◽  
Vol 28 (6) ◽  
pp. 1215-1227 ◽  
Author(s):  
L. Tadrist ◽  
P. Seguin ◽  
R. Santini ◽  
J. Pantaloni ◽  
A. Bricard
Keyword(s):  
Heat Exchangers ◽  
Direct Contact ◽  
Numerical Study ◽  
Contact Heat

Direct contact heat exchangers for space

1985 ◽  
Author(s):  
R. TAUSSIG ◽  
W. THAYER ◽  
V. LO ◽  
K. SAKINS ◽  
A. BRUCKNER
Keyword(s):  
Heat Exchangers ◽  
Direct Contact ◽  
Contact Heat

Study of Nitric Acid Formation in Direct-Contact Heat Exchangers Used for Desalination Processes

2005 ◽  
Vol 19 (1) ◽  
pp. 285-291
Author(s):  
Murat Tekelioglu ◽  
Tahsin Engin ◽  
Hakan S. Soyhan
Keyword(s):  
Nitric Acid ◽  
Heat Exchangers ◽  
Direct Contact ◽  
Acid Formation ◽  
Contact Heat

Direct-Contact Heat Transfer for Air Bubbling Through Water

1991 ◽  
Vol 113 (2) ◽  
pp. 71-74 ◽  
Author(s):  
H. S. Ghazi
Keyword(s):  
Heat Transfer ◽  
Nusselt Number ◽  
Heat Transfer Coefficient ◽  
Constant Temperature ◽  
Heat Exchangers ◽  
Direct Contact ◽  
Contact Heat ◽  
Overall Heat Transfer Coefficient ◽  
Contact Heat Transfer ◽  
Closed Type

Experiments on direct-contact heat transfer of air injected through an orifice and bubbling through a constant temperature, stagnant, pool of water showed an increase in air temperature ranging from about 100 to 200 percent. The process follows a relationship which describes heat transfer in conventional, closed-type, heat exchangers where one fluid is maintained at a constant temperature. The data is correlated by a relationship for the Nusselt number which is based on an average overall heat transfer coefficient.

Sign in / Sign up

Export Citation Format

Share Document