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CENTER FOR CLEAN ENERGY ENGINEERING Seminar Announcement

CENTER FOR CLEAN ENERGY ENGINEERING Seminar Announcement. Seminar Topics: Development of Domestic Stirling Tri-Gen System Presented By: Dr. Sarng Woo Karng, Senior Research Scientist Energy Mechanics Center Korea Institute of Science and Technology Date: Thursday, August 4, 2011

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CENTER FOR CLEAN ENERGY ENGINEERING Seminar Announcement

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  1. CENTER FOR CLEAN ENERGY ENGINEERING Seminar Announcement Seminar Topics: Development of Domestic Stirling Tri-Gen System Presented By:Dr. Sarng Woo Karng, Senior Research Scientist Energy Mechanics Center Korea Institute of Science and Technology Date:Thursday, August 4, 2011 Time:2:30 pm Location:C2E2 - Conference Room 104 Abstract: A 700 We household Tri-Gen system which simultaneously produces electricity, heating and cooling from a single energy unit is developed. The Tri-Gen system generates electricity from a power generator with fuel consumption and harnesses the waste heat resulting from electric generation for heating and cooling. This is designed as a standalone system which operates in the absence of any external power supply. A Stirling Engine of 1 kWe power output is adopted as a prime mover and cold air is supplied by using a heat-driven desiccant cooler. A modular design for a power generator, a heating unit, a cooling unit and a system control unit is performed and each subsystem is integrated into the Stirling Tri-Gen system. Diesel is used as a fuel and a 4 L fuel tank is installed. It provides operating time of 7 hours with 4 L fuel consumption under the nominal power output of 700 We. When Tri-Gen system provides generation and heating, electricity is supplied 0.7 kWe except for the parasitic loss and heating is supplied 6.6 kWth. From these performances, the system efficiency is 77.4%. When Tri-Gen system provides generation, heating and cooling, electricity is supplied 0.7 kWe except for the parasitic loss, heating is supplied 2.4 kWth, and cooling is supplied 3.9kWth. Ultimately the system efficiency is 67.8%. About the Author: Dr. Karng is a Senior Research Scientist at the Energy Mechanics Center for Korea Institute of Science and Technology (KIST) in Seoul, Korea. His research interest are in the areas of Tri-Gen, reformer of fuel cell, sonoluminescence phenomena, heat transfer enhancement, and compact heat exchanger design. He received his Ph.D and MS in Mechanical Engineering from Chung-Ang University in Seoul, Korea. Contact: Dr. Prabhakar Singh Director, Center for Clean Energy Engineering UTC Endowed Chair Professor in Fuel Cell TechnologyCenter for Clean Energy Engineering 44 Weaver Road, Unit 5233 Storrs, CT 06269-5233 Email: singh@engr.uconn.edu

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