Y.L. Tsay

TL;DR: In this paper, a numerical analysis was carried out to study the detailed heat and mass-transfer characteristics in a countercurrent-flow wet surface heat exchanger, where coupled conservation equations for hot fluid, liquid film and moist air stream were solved together.

TL;DR: In this paper, the performance of two evaporatively cooled heat exchangers is investigated under similar operating conditions of air flow rates and inlet hot water temperatures, and the results reveal higher thermal utilisation of the occupied volume by the finned tubes with the same energy index.

TL;DR: In this paper, the thermal performance of an indirect evaporative air cooler is analyzed numerically and the effects of a wide variety of parameters such as the velocities of the primary and the secondary air stream, the channel width, the inlet relative humidity, and the wettability of the plate on its thermal performance are investigated.

TL;DR: In this paper, a 2-dimensional computational fluid dynamics model is used to simulate the coupled heat and mass transfer processes in indirect evaporative cooling with counter flow configurations, and a similarity analysis is presented to deduce the 2-D model equations into dimensionless forms with the purpose of obtaining the minimum set of grouped dimensionless factors affecting the average Nusselt and Sherwood numbers.

TL;DR: In this paper, a theoretical analysis on the cooling enhancement by applying evaporative cooling to an air-cooled finned heat exchanger is presented, where a two-dimensional model on the heat and mass transfer in a finned channel is developed adopting a porous medium approach.

TL;DR: In this article, a numerical study of heat and mass transfer in counter-flow indirect evaporative air coolers is presented using an approach proposed by previous work, where the mathematical model equations of continuity, momentum, energy and concentration are solved by the finite volume method to obtain the value of primary outlet dimensionless temperature.