DESIGN OF COOLING TOWERS BY THE EFFECTIVENESS-NTU (NUMBER OF TRANSFER UNITS) METHOD.
Author(s) : JABER H., WEBB R. L.
Type of article: Article
Summary
THE PAPER DEVELOPS THE EFFECTIVENESS-NTU DESIGN METHOD FOR COOLING TOWERS. THE DEFINITIONS FOR EFFECTIVENESS AND NTU ARE TOTALLY CONSISTENT WITH THE FUNDAMENTAL DEFINITIONS USED IN HEAT EXCHANGER DESIGN. SAMPLE CALCULATIONS ARE PRESENTED FOR COUNTER AND CROSSFLOW COOLING TOWERS. THE PROBLEMS ASSOCIATED WITH THE CURVATURE OF THE SATURATED AIR ENTHALPY LINE ARE ALSO TREATED. INCREASED PRECISION CAN BE OBTAINED BY DIVIDING THE COOLING RANGE INTO 2 ORMORE INCREMENTS. CALCULATIONS ARE PRESENTED TO DEFINE THE ERROR ASSOCIATED WITH DIFFERENT NUMBERS OF INCREMENTS.
Details
- Original title: DESIGN OF COOLING TOWERS BY THE EFFECTIVENESS-NTU (NUMBER OF TRANSFER UNITS) METHOD.
- Record ID : 1990-1878
- Languages: English
- Source: J. Heat Transf. - vol. 111 - n. 4
- Publication date: 1989
- Document available for consultation in the library of the IIR headquarters only.
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