Přenos tepla uvnitř dutých plastových vláken

Heat Transfer Inside of Polymeric Hollow Fiber

miscellaneous

en

A polymeric hollow fiber heat exchanger (PHFHE) is a heat exchanger which uses smalldiameter polymeric tubes (hollow fiber) as a heat transfer surface. Such heat exchangers are compact, light-weight and resistant to corrosion and fouling; they have good thermal performance. Nevertheless, the small diameter of hollow fibers (less than 1 mm) requires one to treat these devices as microsystems and some features need to be considered. The so-called scaling effects, such as axial heat conduction, viscous dissipation, variable properties, thermal entrance region, and wall roughness are discussed with an emphasis on fluid flow and heat transfer in fibers.

Tepelný výměník z dutých vláken je tepelným výměníkem, který používá plastová vlákna malých průměrů jako teplosměnnou plochu. Takové výměníky jsou kompaktní, lehké a odolné vůči korozi a znečištění; mají dobré tepelné vlastnosti.

A polymeric hollow fiber heat exchanger (PHFHE) is a heat exchanger which uses smalldiameter polymeric tubes (hollow fiber) as a heat transfer surface. Such heat exchangers are compact, light-weight and resistant to corrosion and fouling; they have good thermal performance. Nevertheless, the small diameter of hollow fibers (less than 1 mm) requires one to treat these devices as microsystems and some features need to be considered. The so-called scaling effects, such as axial heat conduction, viscous dissipation, variable properties, thermal entrance region, and wall roughness are discussed with an emphasis on fluid flow and heat transfer in fibers.

microscale heat transfer, scaling effects, hollow fiber, polymeric heat exchanger

22.04.2014

HTFFM-V

Marseille

150–150

1