1978
DOI: 10.1115/1.3450860
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Thermal Performance Deterioration in Crossflow Heat Exchanger due to the Flow Nonuniformity

Abstract: A mathematical method to determine the effectiveness of the crossflow heat exchanger accounting for the effect of two-dimensional nonuniform fluid flow distribution is presented. By using a successive substitution technique, the exchanger effectiveness and its deterioration due to the fluid flow nonuniformity effect have been calculated for four typical fluid flow maldistributions. A Flow Nonuniformity Factor has been developed as the principal parameter for predicting the degree of deterioration of the exchan… Show more

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Cited by 83 publications
(36 citation statements)
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“…A lot of related research works (Fleming, 1967;Chiou, 1978Chiou, , 1980Lalot et al, 1999;Ranganayakulu and Seetharamu, 1999a,b;Bobbili et al, 2002Bobbili et al, , 2006Yuan, 2003;Jiao et al, 2003;Wen and Li, 2004;Jiao and Baek, 2005;Srihari et al, 2005) have proved that flow maldistribution reduces significantly the idealized heat exchanger performance especially in mini-scale heat exchangers and finding effective methods to solve this problem is a real challenge faced by researchers and engineers.…”
Section: Introductionmentioning
confidence: 99%
“…A lot of related research works (Fleming, 1967;Chiou, 1978Chiou, , 1980Lalot et al, 1999;Ranganayakulu and Seetharamu, 1999a,b;Bobbili et al, 2002Bobbili et al, , 2006Yuan, 2003;Jiao et al, 2003;Wen and Li, 2004;Jiao and Baek, 2005;Srihari et al, 2005) have proved that flow maldistribution reduces significantly the idealized heat exchanger performance especially in mini-scale heat exchangers and finding effective methods to solve this problem is a real challenge faced by researchers and engineers.…”
Section: Introductionmentioning
confidence: 99%
“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14] Currently available research articles on this topic reveal that solutions can be mainly classified into two categories: the insertion of porous media and the modification of the distributor's geometrical parameters. More details are tabulated in Table 1.…”
Section: Introductionmentioning
confidence: 99%
“…Chen and Chen [10,11] also used the Laplace transform method but they have used numerical inversion technique for solving the transformed temperatures. The case of flow nonuniformity was first investigated by Chiou [12] for the steady state condition. Similarly the case of nonuniform inlet temperature was taken up by Kou and Yuan [13] for finding out the effects of longitudinal conduction again at steady state condition.…”
Section: Introductionmentioning
confidence: 99%