Abstract
The characteristics of waste heat effluents from 11 industrial complexes of 7 areas were analyzed to investigate the possibility of waste heat recovery of huge amount of waste heat producing from various industrial complexes. This study presents a part of the research work for the industrial waste heat for development of energy integrated network system in broad city area, which will utilize industrial waste heat for residential and commercial areas, where they are located at some distances from the complexes. The amount of waste heat from the investigated complexes was detected as 148,913 TOE/year. However, It was analyzed 83% of the waste heat was analyzed the temperature range from 0$^{\circ}C$ to 200$^{\circ}C$. Also, it was evaluated that 82% of waste heat was exhausted by flue gases. Especially, the characteristics of waste heat for the areas where most heat concentrated, such as Tae-gu industrial complex, Ul-san petrochemitry complex, Yio-chun petrochemistry complex, and Chun-ju industrial complex were investigated more precisely. Total amount of waste heat discharged from these four areas were analyzed 114,402 TOE/year, which was occupied as 77% of the total waste heat for the studied areas, and 87% of the waste heat from the industries was exhausted by flue gaseous phase and temperature range was from 0$^{\circ}C$ to 200$^{\circ}C$ 18.1 million TOE/year waste heat was released from the fossil fuel power plants, however 95% of waste heat was analyzed as cooling water from surface condensers at power plants. The temperature range was measured from 27$^{\circ}C$ to 34$^{\circ}C$, which are unable to utilize due to its low temperature. Otherwise, 5% (894,800 TOE/year) waste heat released from power plants were observed as flue gas, which temperature ranged from 90$^{\circ}C$ to 170$^{\circ}C$.
각종 산업단지 및 발전소에서 배출되는 막대한 양의 폐열을 회수하여 재활용하기 위하여 전국 7개 지역 11개 공단에 대한 폐열 특성분석을 실시하였다. 본 연구는 도시종합에너지시스템 연구의 일환으로 산업체 폐열을 배후도시의 주거 및 상업지역에 공급.이용 가능성을 검토하였다. 검토대상 공업단지의 조사된 폐열량은 148,913 TOE/년으로 나타났으며, 온도범위는 $0^{\circ}C$~20$0^{\circ}C$가 83%, 그리고 배가스 형태로 배출되는 폐열이 전체의 82%를 차지하는 것으로 나타났다. 이들 조사대상 공업단지 중 폐열량이 집중된 4개 지역 (대구공단, 울산 석유화학단지, 여천 석유화학단지 및 전주공단)에 대한 폐열특성도 상세하게 조사되었으며, 이들 공단의 조사된 폐열량은 114,402 TOE/년으로 조사된 총폐열량의 77%에 해당하며. 이중 배가스는 87%, 온도범위는 $0^{\circ}C$~20$0^{\circ}C$의 폐열이 대부분인 것으로 나타났다. 또한, 18.1 million TOE/년의 폐열이 화석연료를 사용하는 발전소로부터 발생되며, 이중 95%가 복수냉각기에서 배출되는 27$^{\circ}C$~34$^{\circ}C$ 범위의 저온폐열이며, 나머지 5%(894,800 TOE/년)가 연도 배가스 형태로 배출되고 있는 것으로 조사되었다.
