An analytical method for determining transient temperature field in a parallel-flow three-fluid heat exchanger

Transient temperature field in a parallel-flow three-fluid heat exchanger with the thermal capacitance of the walls and the longitudinal walls conduction

“…(1) - (13) is solved numerically by means of the MacCormack implicit predictor-corrector method [22 -24]. This two-step finite difference method of second order accuracy is very effective 9 for solving classical transient heat transfer problems in heat exchangers, both for a step change in flow rate and for a step change in inlet temperature [10,11,13].…”

“…However, in most cases, the solutions presented ACCEPTED MANUSCRIPT 4 refer to the determination of steady-state temperature fields [1 -7]. According to the best knowledge of the authors, the available literature gives little information regarding mathematical modelling of transient behaviour of such exchangers [8][9][10][11][12][13][14][15][16][17][18][19][20][21]. Sekulic and…”

Novel approach of thermal modeling of partially dry–wet chilled water cooling coil under unit and nonunit Lewis number conditions

“…However, the complicated calculations which are used in this approach such as Fourier expansion series and Laplace transformations predicted that the cooling coil performance is not easier to process/operation engineer who works in real site to anticipate the thermal behavior of the system. Analytical modeling has been performed as in [8][9][10][11][12][13][14].…”

Semi-numerical analysis of heat transfer performance of fractal based tube bundle in shell-and-tube heat exchanger

“…Furthermore, the geometric optimization can also be performed based on numerical model [25]. Compared with numerical analysis, it is much difficult to obtain analytical results [26]. Though the numerical simulation is currently the most accurate method to carry out the analysis of shell-and-tube heat exchanger, there exists an unavoidable trouble, i.e.…”