Modeling of transient heat transfer in cross-flow tube-and-fin heat exchangers / Dawid Taler // W: Mathematical modeling and monitoring of steam boilers / ed. by Magdalena Jaremkiewicz ; Politechnika Krakowska ... więcej

Modeling of transient heat transfer in cross-flow tube-and-fin heat exchangers / Dawid Taler // W: Mathematical modeling and monitoring of steam boilers / ed. by Magdalena Jaremkiewicz ; Politechnika Krakowska im. Tadeusza Kościuszki. – Kraków : Wydaw. PK, 2015. – (Monografia / Politechnika Krakowska im. Tadeusza Kościuszki. Mechanika). – S. 135-156 : rys., wykr. – Bibliogr. 22 poz., Summ., s. 208, Streszcz., s. 211, Zsfassung, s. 215. – Seria gł.: Monografia / Politechnika Krakowska im. Tadeusza Kościuszki, ISSN 0860-097X ; 489

The numerical model of the cross-flow tube heat exchanger, which enables heat transfer simulations under transient conditions were developed. First, the transient temperature distributions of fluids and ... więcej

The numerical model of the cross-flow tube heat exchanger, which enables heat transfer simulations under transient conditions were developed. First, the transient temperature distributions of fluids and tube wall in the one row tubular cross flow heat exchanger was determined using the finite difference method and the Laplace transform method. The results achieved by both methods are in good agreement. Then, the numerical model was validated by comparison of outlet water and air temperatures obtained from the numerical simulation with the experimental data. The discrepancy between numerical and experimental results is very small. The finite difference method presented in the paper can be used for modeling cross-flow tube exchangers with any number of tube rows and passes.