Abstract
Cross/counter flow types of heat exchanger seem likely to have superior characteristics in regard to design a large heat transfer surface area per unit volume by alternately laminating the elements. In this paper, a cross flow type of heat exchanger are examined by experiment, and inserted plate with/without slit holes setting in ducts are proposed to be up the exchanging heat performance from the view point of the enhancement of heat transfer coefficient and pressure loss decreasing, substituting the conventional heat transfer surface increasing technique. Experimental results for 4 cases (CFHE without inserted plate, and inserted plate with/without slit holes) are discussed as a relation of temperature effectiveness and number of heat transfer unit and exergy transfer, referred to the numerical results taking the effect of the inserted plate with/without slit holes on flow, heat transfer behaviors and pressure decreasing into consideration.
