کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
662514 1458177 2006 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An analytical model for the heat and mass transfer processes in indirect evaporative cooling with parallel/counter flow configurations
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
An analytical model for the heat and mass transfer processes in indirect evaporative cooling with parallel/counter flow configurations
چکیده انگلیسی

This paper aims at developing an analytical model for the coupled heat and mass transfer processes in indirect evaporative cooling under real operating conditions with parallel/counterflow configurations. Conventionally, one-dimensional differential equations were used to describe the heat and mass transfer processes. In modeling, values of Lewis factor and surface wettability were not necessarily specified as unity. Effects of spray water evaporation, spray water temperature variation and spray water enthalpy change along the heat exchanger surface were also considered in model equations. Within relatively narrow range of operating conditions, humidity ratio of air in equilibrium with water surface was assumed to be a linear function of the surface temperature. The differential equations were rearranged and an analytical solution was developed for newly defined parameters. Also, performances with four different flow configurations were briefly discussed using the analytical model. Through comparison, results of analytical solutions were found to be in good agreement with those of numerical integrations.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 49, Issues 3–4, February 2006, Pages 617–627
نویسندگان
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