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Double Pipe Heat Exchange Lab Report

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This paper deals with the heat transfer analysis in a double pipe heat exchanger with longitudinal fins. The double pipe heat exchanger consist of inner circular pipe made of copper for better heat transfer rate with longitudinal fins made of copper for providing larger surface area for heat transfer and outer circular pipe. The experimental analysis is carried out with both parallel flow and counter flow and a comparative study is being done with both the types of flow using longitudinal fins and without fins.

Keywords— Copper, Efficiency of Fins, Heat exchanger, Heat Transfer, Thermal energy.

A heat exchanger is a device that is used to transfer thermal energy between two or more fluids, between a solid surface and a fluid, or between solid particulates and a fluid, at different temperatures and in thermal contact. There are basically two types of heat exchangers i.e. direct transfer type heat exchanger and indirect contact type heat exchanger. The heat …show more content…

The experiment is carried out for both parallel flow type and counter flow type.
A. SPECIFICATIONS
Inner tube material = Copper
Inner tube (circular) inner diameter (di) = 18.5mm
Inner tube outer diameter (do) = 20mm
Length of heat exchanger (L) = 1100mm
Outer tube material = GI
Outer tube (circular) inner diameter (Di) = 54mm
Outer tube outer diameter (Do) = 57mm
Fins:
Fin material = Copper
Thickness = 2mm
Length = 1100mm
Height = 12mm

B. Fig.1 CROSS SECTONAL DESIGN OF HEAT EXCHANGER

C. Fig.2 PARALLEL FLOW AND COUNTER FLOW

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