胶球在线清洗对冷凝器端温差及能耗的影响
摘要
冷水机组长时间运行会使换热器中积累大量污垢及水垢,从而大大降低换热器效率,导致耗电量增加。以天津某地铁站为例,研究了胶球在线清洗对电制冷冷水机组冷凝器端温差及能耗的影响情况。实验测试了安装和未安装自动在线清洗装置的2台冷水机组的端温差,分析了节能效果。实测结果表明,安装和未安装自动在线清洗装置的2台冷水机组冷凝器的端温差分别1.49℃和3.38℃,降低了1.89℃,可实现节电5.67%~7.56%。而且由于冷凝温度的降低,使得冷水机组运行更加稳定可靠。由此可见,胶球在线清洗装置具有显著的节能效果。
引文
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[4]Lu L,Cai W J,Soh Y C,et al.HVAC system optimization-condenser water loop[J].Energy Conversion and Management,2004,45(4):613-630.
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[6]Garcia A,Vicente P G,Viedma A.Experimental study of heat transfer enhancement with wire coil inserts in laminar-transition-turbulent regimes at different Prandtl numbers[J].International Journal of Heat and Mass Transfer,2005,48(21-22):4640-4651.
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[11]Michael E Walker,Iman Safari,Ranjani B Theregowda,et al.Economic impact of condenser fouling in existing thermoelectric power plants[J].Energy,2012,44:429-437.
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[18]M Markowski,K.Urbaniec.Optimal cleaning schedule for heat exchangers in a heat exchanger network[J].Applied Thermal Engineering,2005,25(7):1019-1032.
[19]Frota M N,Ticona E M,Neves A V,et al.On-line cleaning technique for mitigation of biofouling in heat exchangers:A case study of a hydroelectric power plant in Brazil[J].Experimental Thermal and Fluid Science,2014,53:197-206.
[20]Won Tae Kim,Young I Cho.Effect of Electronic Anti-fouling Treatment on Fouling Mitigation with Circulating-tower water[J].Int.Comm.Heat Mass Transfer,2001,28(5):671-680.
[21]GB50736-2012.采暖通风与空气调节设计规范[S].