IMPROVED PRIMARY SURFACE HEAT EXCHANGER FOR MICRO GAS TURBINE

摘要

In a heat exchange plate of a wavy-fin structure extended to be wavy from a primary surface of a heat exchanger and including uneven portions, the present invention relates to a heat exchange plate with a primary surface for a micro gas turbine having improved heat exchange efficiency by controlling imbalanced flow amount distribution caused by a structural problem due to an asymmetric heat exchange path and controlling a thermal loss due to conduction of a stiffener and a weld cap and to a heat exchanger using the same. To achieve the same, the present invention provides the heat exchange plate including a body made of a plate-shaped metal sheet; an intake unit through which a first fluid flows in the body; a primary surface having an uneven unit extended from the primary surface to be wavy and enabling the received first fluid to pass through the concave portion of the uneven unit; a discharge unit through which the first fluid is discharged from the body; a first flow passage enabling the first fluid to be discharged through the discharge unit from the intake unit via the primary surface; and a first distribution plate having multiple uneven portions to distribute the first fluid on the primary surface and characterized by forming a cross section area of a flow passage of a channel wherein the amount of the first fluid is relatively larger smaller than a cross sectional area of a flow passage of a channel wherein the amount of the first fluid is relatively smaller. According to the same, the present invention obtains an effect of improving heat exchange efficiency of the heat exchanger by controlling a flow amount of a portion wherein a heat exchange path is short.