Fluent软件在地表水源热泵系统温排水数值模拟中的运用_黄晓武

Fluent软件在地表水源热泵系统温排水数值模拟中的运用*黄晓武1田静1张媛媛1孔淑琼2洪念1刘杰1罗阳1顾晨1(1.桂林理工大学广西环境工程与保护评价重点实验室，广西桂林541004;2.中国地质大学环境学院，武汉430074)摘要:运用Fluent软件对重庆市嘉陵江化龙桥段瑞安新天地江水水源热泵系统尾水排入受纳水域的过程进行二维数值模拟，选取Fluent中非耦合、隐式求解器对模型内的定常流动进行求解，得出受纳水域受水源热泵系统温排水影响后的温升面积和温度梯度。结果表明:在温排水流量为2.0×103m3/h、温差为4℃的条件下，计算该水域沿水流方向温升超过1℃的最大影响距离为150.4m，温升超过1℃的水域面积约为1525m2，为模拟江水面积的8.59%。选取1℃温升值作为温升带的边界控制值，并在热泵系统最大负荷工况下，根据W=Q×ΔT计算研究水域热环境容量为19.402m3·℃/s，剩余热环境容量为17.736m3·℃/s。根据地表水环境质量标准，该工程温排水量小于受纳水域的热承载力，不会对受纳水域生态环境造成热污染。关键词:Fluent软件;地表水源热泵;二维数值模拟;温排水APPLICATIONSTUDYOFFLUENTSOFTWAREINTHERMALDISCHARGENUMERICALSIMULATIONOFSURFACE-WATERRESOURCEHEATPUMPHuangXiaowu1TianJing1ZhangYuanyuan1KongShuqiong2HongNian1LiuJie1LuoYang1GuChen1(1.TheGuangxiKeyLaboratoryofEnvironmentalEngineering，ProtectionandAssessment，GuilinUniversityofTechnology，Guilin541004，China;2.SchoolofEnvironmentalStudies，ChinaUniversityofGeosciences，Wuhan430074，China)Abstract:Fluentsoftwarewasusedtomaketwo-dimensionalnumericalsimulationontheprocessofthetailwaterdischargedintothereceivedwaterofthewaterresourceheatpumpofRuianNewWorldAreaofHualongBridgeonJialingRiverinChongqing．Throughstudyingthesteadyflowprocessinthemodelbyusinguncoupledimplicitsolvers，thetemperaturerisingareaandtemperaturegradientoftheinfluencingwaterheadweregot．Theresultsshowedthat:astheflowofthermaldischargewas2．0×103m3/handthetemperaturedifferencewas4℃，themostinfluencedistancealongtheflowdirectionwas150.4m，moreoverthewaterareawas1525m2iftemperatureofthewaterrose1℃，whichwas8.59%areaofthesimulationriveracreage．Thisarticleintercalatetheboundarycontrolvalueofthetemperaturerisingareawithonedegree，intheconditionofmostlypolluted，accordingtotheformulaofW=Q×ΔT，theenvironmentalheatcapacitywas19.402m3·℃/s，furthermoretheresidualenvironmentalheatcapacitywas17.736m3·℃/s．Accordingtothewaterenvironmentqualitystandard，thecapacityofthethermaldischargewasunderthereceivedwater，andtherewasnothermalpollutiontotheecologicalenvironmentofthereceivedwater．Keywords:Fluentsoftware;surface-waterresourceheatpump;two-dimensiona