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EXPERIMENTAL AND NUMERICAL STUDY OF THE EFFECT OF HEATED OBSTRUCTION WITHIN A SPACE (WELDING WORKSHOP) ON THREE DIMENSIONAL AIR FLOW CHARACTERISTIC

Authors: Ali Abd-Almonaaem --- Emad Abdala Khazaal --- Hala Jasim Maki
Journal: Al-Qadisiyah Journal for Engineering Sciences مجلة القادسية للعلوم الهندسية ISSN: 19984456 Year: 2018 Volume: 11 Issue: 1 Pages: 92-114
Publisher: Al-Qadisiyah University جامعة القادسية

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Abstract

This study investigates experimentally and numerically the environmental conditions prevailing in a large mechanically ventilated welding workshop which lies in the Basra Oil Training Institute in Iraq. The numerical part was accomplished with the aid of the computational fluid dynamics by ANSYS 15 program. This software program was compared against the results of a resemblance research work ]1[, which shows a good agreement. Numerical results are compared with experimental data collected during different ventilation and occupational conditions of empty and full workshop daily work, and there is a good agreement between experimental data and numerical results. The experimental part was done by using suitable calibrated devices to measure the air velocity, temperature, relative humidity and concentration of CO, CO2 gases in the different locations of the indoor environment of welding workshop. The results of this study demonstrate that the occupants of the existed welding workshop suffer from healthy problems because of the harmful gases, and the inefficient ventilation system used

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