Informatics Publishing Limited

Lakshminarayana Kudinalli Gopalakrishna Bhatta ¹, Seetharamu Subramanyam ², Madhusoodana D. Chengala ³, Umananda Manjunatha Bhatta ¹, Krishna Venkatesh ¹, V. Raghavendra ⁴

Affiliations
1 Centre for Incubation, Innovation, Research and Consultancy, Jyothy Institute of Technology, Tataguni, Off Kanakapura Road, Bengaluru 560 082, IN
2 R&D Centre, BMS College of Engineering, P.O. Box No. 1908, Bull Temple Road, Bengaluru 560 019, IN
3 Ceramic Technological Institute, Bharat Heavy Electricals Ltd, Bengaluru 560 012, IN
4 Mayura Analytical LLP, #455, 18th Main, 4th T Block, Jayanagar, Bengaluru 560 041, IN

Abstract

The adsorption of carbon dioxide (CO₂) on solid sorbents or any gas adsorption in general can be experimentally determined using various techniques. The present study demonstrates a dynamic column breakthrough method for the measurement of CO₂ adsorption using a cost-effective purpose-built single-column fixed-bed adsorption unit. The CO₂ adsorption capacity is estimated using a graphical method that does not require knowledge of the variation of molar CO₂ flow rate at the column exit. The experimental method is validated using a commercial zeolite 13X adsorbent.

Keywords

Carbon Dioxide Adsorption, Dynamic Column Breakthrough Method, Gas Chromatography, Zeolite and Sorbent.

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Gopalakrishna K. ¹, Krishna Venkatesh ², Rama Narasimha K. ¹, Ananda M. A. ³, Parasuram A. K. ³, Gururaja G. ², Jayaprakash P. N. ⁴, Sendil Kumar T. J. ⁴

Affiliations
1 Professor, Centre for Emerging Technologies, Jain University, Ramanagara Dt. - 562 112, Karnataka, IN
2 Director and CTO, Centre for Emerging Technologies, Jain University, Ramanagara Dt. - 562 112, Karnataka, IN
3 Post Graduate Student, Centre for Emerging Technologies, Jain University, Ramanagara Dt. - 562 112, Karnataka, IN
4 Senior Engineer, Avni Energy Solutions Pvt Ltd, Bangalore – 560 062, IN

Abstract

The aim of the present study is to improve the thermal performance of the MR16, 7 W and 9 W LED decorative lighting solutions by integration of acetone charged copper pipe (ACCP) into its aluminum heat sink. With integration of ACCP, the luminary designed for lower wattage can withstand higher wattage and can accommodate more LED’s with increased illumination. The heat transfer characteristics of high power LED is analyzed and a novel ACCP cooling device for high power LED is designed. The thermal capabilities of lighting solutions with integration of ACCP and without integration of ACCP for the same load (fixture + heat sink) were investigated experimentally. The experimental results indicate that the given load can accommodate more LED’s for higher wattage which can be attributed to improved heat transfer after integration of ACCPs resulting in increased illumination.

Keywords

LED, Temperature and Heat transfer

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