12th International Symposium on District Heating and Cooling

The <strong>12th</strong> <strong>International</strong> <strong>Symposium</strong> on District Heating and Cooling,September 5 th to September 7 th , 2010, Tallinn, Estoniaside in the winter the rate of operation of HOB will bedecreased.– The thermal energy exchanges via the network andthe corresponding changes in operation on both sidesare prevailing in intermediate seasons in case of similarheat consumption patterns on both sides.– The operation of cooling system on the newlydeveloping area is verified not to have much effects interms of thermal networking operation. However, thesignificant changes in the LNG consumption patternsby use are observed according to the ratio ofresponsibility by absorption chillers for the cooling load.The various aspects of system configuration in terms ofCHP system optimization are discussed with thedevelopment of a simulation program in this study. It isverified that the physical and mechanical mechanismsconcerned with the thermal networking operation hasbeen appropriately modeled from the assessment ofoperational behavior for test cases.ACKNOWLEDGEMENTThe author gratefully acknowledges the financial andtechnical supports for the research from the KoreaDistrict Heating Corporation (KDHC).REFERENCES[1] Korea Energy Management Corporation, ―Statisticsfor district heating and cooling enterprise in Korea‖,2009.[2] A. Marbe, S. Harvey, ―Opportunities for integrationof biofuel gasifiers in natural-gas combined heatand-powerplants in district-heating systems‖,Applied Energy, 2006, Vol.83, pp. 723-748.[3] C. Weber, I. Heckl, F. Friedler, F. Marechal, D.Favrat, ―Network synthesis for a district energysystem: a step towards sustainability‖, ComputerAided Chemical engineering, 2006, Vol. 21, pp.1869-1874.[4] H. Lund, F. Hvelplund, I. Kass, E. Dukalskis, D.Blumberga, ―District heating and market economyin Latvia‖, Energy, 1999, Vol. 24, pp. 549-559.[5] H. C. Park, M. Chung, S. H. Kim, ―Development ofsystem simulator for community energy system‖,Report to Ministry of Industry, 2003.[6] Y. H. Im, H. C. Park, M. Chung, ―A study of optimalheating supply systems for the newly developingarea in the vicinity of DHC system supplying area‖,Report to Korea District Heating Corporation, 2006[7] Y. H. Im, M. Chung, H. C. Park, ―Feasibility studyfor small size cogeneration systems in themetropolitan areas of Seoul‖, Final Report to SH(Seoul Housing) Corporation, 2008.[8] M. Chung, H. C. Park, ―Development of a energydemand estimator for community energy systems‖,Journal of the Korean Solar Energy Society, 2009,Vol 29, pp. 37-44.[9] M. Chung, H. C. Park, ―Development of a softwarepackage for community energy system assessment– Part I: Building a load estimator‖, Energy, inpress.[10] H. C. Park, S. S. Lee, D. J. Kim, ―Development ofenergy models for department stores‖, KoreanJournal of Air-Conditioning and RefrigerationEngineering, 2003, Vol. 15, pp. 1088-94.[11] H. C. Park, M. Chung, ―Building load models forhotels in Korea‖, Journal of the Korean SolarEnergy Society, 2009, Vol. 29, pp. 48-57.[12] H. C. Park, ―Development of weighting factors forvariables associated with hourly energyconsumption pattern for hotels in Korea‖, SAREK(Soc. Air-conditioning, Ref., Engineers of Korea)Winter Annual meeting, 2002, pp. 76-82[13] H. C. Park, ―Analysis of energy loads for hospitalbuildings‖, SAREK journal, 2002, pp. 1088-93.167