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Summary

In this study, the exergy could be reflected on energetic and economic value was used to assess on heat tariff of district heating(DH) system instead of enthalpy. As a result of exergy analysis for a district heating substation, supply temperature, maximum difference between supply and return temperature had a main effect on the exergy temperature difference. The new heat tariff of a district heating user in Korea was reduced 4.5% in winter compared with existing assessment. This new assessment by exergy can be more feasible for both DH supplier and consumer in terms of incentive and penalty charge.

Speaker

Junghwan Moon, Samsung C&T