363-能源总线系统能量转移的㶲变理论研究.pdfVIP

1能源总线系统能量转移的㶲变理论研究 冯国会，胥富强，田川，刘铭 （沈阳建筑大学） 摘 要：能源总线系统的源侧是集成化的多种能源，由于各个源侧温度、流量、浓度等 参数的不一致，统一调度时会出现混水的现象，混水过程伴随着能量损失。本文从㶲变的角 度来研究混水过程能量的损失。得到最后得到热源混水前后功率变化∆W% = ( ) , , , , 的关系式，说明该功率与低温热源如口温度、高温热源如口温度、高 ℎ1 ℎ2 1 温热源出口温度、子系统低温热源介质质量占低温热源介质总质量的比例、高低温热源介质 质量的比例参数有关，与低温热源出口温度无关。 关键词：能源总线；能量转移；㶲变 Research on Transmutation Theory of Energy Transfer in Energy Bus System Abstract ：The source side of the energy bus system is a variety of integrated energy sources. Due to the inconsistency of parameters such as temperature, flow rate, and concentration on each source side, the phenomenon of water mixing occurs during unified scheduling, and the water mixing process is accompanied by energy loss. This paper studies the energy loss in the mixing process from the perspective of transmutation. The relationship between the power changes ( ) ∆W% = , , , , before and after the heat source mixing is finally obtained. ℎ1 ℎ2 1 The power is related to low temperature heat source such as mouth temperature, high temperature heat source such as mouth temperature, high temperature heat source outlet temperature, subsystem low temperature heat source medium weight ratio of low temperature heat medium medium mass ratio, high and low temperature heat source medium quality ratio parameters, and low temperature heat source outlet No temperature. Keywords: Energy bus; Energy transfer; Transmutation 0 引言 “能源总线”就是将来自于可再生能源或未利用能源的热源/热汇水，通过作为基础设 施的冷水管网，输送到用户。在用户端，总线来的水作为水源热泵的热源/热汇，经换热后 回到源头，或排放(地表水) 、或循环再次换热(通过换热器与各种“源”和“汇”藕合) 、或 回灌(地下水) 。在能源总线中，根据当地资源条件，“源”和“汇”不止一个；用户可以是 建筑、可以是建筑物的每一层楼、也可以是每户住宅套房、甚至可以是每间房间[1-3] 。对于 混水问题，许多的混合式系统都会出现这个