Rational enhancement of convective heat transfer by dissection of long smooth ducts

Аuthors

Vasilyev V. Y.

Astrakhan State Technical University,

e-mail: vasilievv@mail.ru

Abstract

Regular experimental research is executed for enhancement of convective heat exchange in rectangular dissected ducts in aerodynamic tube of interrupted type. It is shown that the process for rational enhancement of convective heat exchange (RECH) is realized and it is determined by the condition [(Nu/Nu_rjI)/( С / С _гл)1 r_c = idem - 1 ^anc^ '^s reliably governed by the change of values of basic dimentionless parameters. Graphic dependences are offered allowing to define and observe continuous change of values and key parameters of RENT process in all area of its realization on number Re which is interested the designers of heat transfer apparatus (HTA). The received results can be used at designing of enhanced HTAfor various purposes. 

Keywords:

plate-and fin, smooth duct surface, parameter of dissection, turbulization, rational enhancement of convective heat transfer