Investigation in utilizing paraboloid concentrators for thermal perforation of metals |
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| Affiliation: | 1. Dept. of Aerospace and Mechanical Eng., University of Notre Dame, 365 Fitzpatrick Hall, Notre Dame, IN 46556, USA;2. Hybrid Systems Group, Propulsion Systems Research Lab, GM R&D Center, Mail Code 480-106-252, 30500 Mound Road, Warren, MI 48090-9055, USA;1. Department of Mechanical Engineering, Khomeinishahr Branch, Islamic Azad University, Khomeinishahr, Iran;2. Department of Mechanical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran;1. Department of Mining and Materials Engineering, McGill University, 3450 University, Frank Dawson Adams Bldg., Montreal, QC H3A 0E8, Canada;2. Norman B. Keevil Institute of Mining Engineering, 511-6350 Stores Road, Vancouver, BC V6T 1Z4, Canada;1. Punjab Engineering College, Mechanical Engineering Department, Punjab Engineering College, Sector-12, Chandigarh 160012, India;2. Associate Professor, Department of Mechanical Engineering, Punjab Engineering College, Chandigarh, 160012, India |
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| Abstract: | Paraboloid solar concentrators are used to investigate the feasibility of using concentrated solar energy to perforate metals. An electroplated paraboloid was used as the test rig, and experiments were conducted on the variation of temperature at the absorber location (focal point). Given the size of the aperture of the paraboloid, a concentration factor of around 3000 was achieved and temperature in excess of 840 °C was reported. Such temperatures are enough to melt most nonferrous alloys, and given the size of the absorber area (focal point size) the power developed are comparable to continuous-pulse laser machining are expected. |
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