Heat balance analysis of 7kW fast axial flow CO2 laser and design of the heat exchanger

HUANG Hong-yan; WANG You-qing; LI Qing

doi:10.3969/j.issn.1001-3806.2010.02.026

In order to overcome the main issue in the design of high power fast axial flow CO2 lasers, i.e.,cleanup of the heat in the active region, considering the inner heat cycle and characteristics of the 7kW fast axial flow CO2 laser, the heat balance equation was established with connective cooling method.Meanwhile,in view of the big thermal load quantity, the whole sturcture limitation and the specific turbo blower of the high power laser, comparing various types of heat exchangers, the rectangle fin circle tube heat exchanger was chosen as the laser's radiator in light of the prominent heat transfer u:apacity and compact structure. Further more designed the heat exchanger and calculated the heat conducting for the 7kW laser.The quantity of heat exchange is 37.4kW.The results indicate that the rectangle fin circle tube heat exchanger is suitable to the fast axial flow CO2 laser.

Heat balance analysis of 7kW fast axial flow CO2 laser and design of the heat exchanger

Corresponding author: WANG You-qing, YQWang13@163.com;

1. College of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

Received Date: 2009-02-10

Accepted Date: 2009-03-18

Available Online: 2010-03-25

Abstract: In order to overcome the main issue in the design of high power fast axial flow CO2 lasers, i.e.,cleanup of the heat in the active region, considering the inner heat cycle and characteristics of the 7kW fast axial flow CO2 laser, the heat balance equation was established with connective cooling method.Meanwhile,in view of the big thermal load quantity, the whole sturcture limitation and the specific turbo blower of the high power laser, comparing various types of heat exchangers, the rectangle fin circle tube heat exchanger was chosen as the laser's radiator in light of the prominent heat transfer u:apacity and compact structure. Further more designed the heat exchanger and calculated the heat conducting for the 7kW laser.The quantity of heat exchange is 37.4kW.The results indicate that the rectangle fin circle tube heat exchanger is suitable to the fast axial flow CO2 laser.

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Reference (11)

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Heat balance analysis of 7kW fast axial flow CO2 laser and design of the heat exchanger

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