This paper presents the experimental data concerning the temperature distribution in a single pass crossflow heat exchanger, where hot water flowing in a tube bundle is cooled by air. The lower region of the facility works as a crossflow heat exchanger with unmixed fluids; here the analytical investigation is carried out by solving the energy balance equations (for air, water and walls) resorting to the two-fold application of the Laplace transform technique. The upper part of the exchanger, where air flows in the shell side through the tube bundle without water flow, is simulated as a packed bed. The temperature distribution is obtained by solving the coupled partial differential equations governing air and copper temperature. At last the experimental data and the analytical results are compared and discussed, stressing the effects of the main physical and geometrical parameters on the heat exchanger behavior.
Experimental and theoretical investigation of a tube-bundle heat exchanger / Lorenzini, E.; Orlandelli, C. M.; Spiga, M.; Tartarini, P.. - In: SYMPOSIUM SERIES. - ISSN 0307-0492. - 1:129(1992), pp. 459-465. (Intervento presentato al convegno 3rd UK National Conference incorporating 1st European Conference on Thermal Sciences tenutosi a Birmingham, Engl nel 16 September 1992 through 18 September 1992).
Experimental and theoretical investigation of a tube-bundle heat exchanger
Tartarini P.
1992
Abstract
This paper presents the experimental data concerning the temperature distribution in a single pass crossflow heat exchanger, where hot water flowing in a tube bundle is cooled by air. The lower region of the facility works as a crossflow heat exchanger with unmixed fluids; here the analytical investigation is carried out by solving the energy balance equations (for air, water and walls) resorting to the two-fold application of the Laplace transform technique. The upper part of the exchanger, where air flows in the shell side through the tube bundle without water flow, is simulated as a packed bed. The temperature distribution is obtained by solving the coupled partial differential equations governing air and copper temperature. At last the experimental data and the analytical results are compared and discussed, stressing the effects of the main physical and geometrical parameters on the heat exchanger behavior.
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