Optimization of heat pipe heat exchangers applied for heat recovery systems

سال انتشار: 1394
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 849

فایل این مقاله در 6 صفحه با فرمت PDF قابل دریافت می باشد

استخراج به نرم افزارهای پژوهشی:

لینک ثابت به این مقاله:

شناسه ملی سند علمی:


تاریخ نمایه سازی: 30 بهمن 1394

چکیده مقاله:

High efficiency in heat transfer makes heat pipe heat exchanger a common device applied in waste heat recovery systems. In order to optimize it, a mathematical model, which considers the effect of both convective heat transfer in the finned tube bank and the internal heat resistance of the heat pipes, was developed. This model contains all the resistances that were not considered in previous studies. Finally, an equation to determine the optimum position of separating plate in heat pipe heat exchanger was obtained. It was resulted that the optimum position is a function of geometrical arrangement of heat pipes in heat exchanger like transverse spacing, initial temperature and mass flow rates of streams, as much as internal and construction features of heat pipes. When the ratio of internal to evaporator overall resistance increases, the descending slope of the optimum position ratio, X, becomes steeper, and when this ratio goes upper than 2, X reaches the constant value of 0.5. If the ratio of evaporator to condenser overall resistance becomes 1, X reaches the constant value of 0.5 again. The optimum position ratio is 0.65 when the evaporator to condenser volumetric flow rate is 0.13 and moves toward the evaporator section as volumetric flow rate ratio increases.


Roonak Daghigh

Department of Mechanical Engineering, University of Kurdistan;

Abdellah Shafieian

Department of Mechanical Engineering, University of Kurdistan,

مراجع و منابع این مقاله:

لیست زیر مراجع و منابع استفاده شده در این مقاله را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود مقاله لینک شده اند :
  • White, F.M., Heat and Mass Transfer, 1988, U.S.A. Addis on-Wesley ...
  • Whitaker, S.. 1972, :Forced convection heat transfer correlations flow in ...
  • نمایش کامل مراجع