空气源热泵用于低温热水地板辐射供暖系统的模拟研究.docxVIP

doi：10.3969/j.issn.2095-4468.2014.01.103空气源热泵用于低温热水地板辐射供暖系统的模拟研究许可，王树刚?，蒋爽，张腾飞（大连理工大学建设工程学部，辽宁大连116024）[摘要]低温热水地板辐射供暖具有舒适、节能和节省空间等优势。空气源热泵以其高效、稳定及其与前者的良好匹配性被认为是低温热水地板辐射供暖系统的理想热源。空气源热泵与地板辐射供暖系统相结 合能充分利用围护结构及地板各构造层等蓄热体的蓄热特性，减小环境温度变化对空气源热泵制热性能的 影响。本文利用TRNSYS和EES软件建立某高层建筑以空气源热泵为热源的低温热水地板辐射供暖系统的瞬态仿真模型，模拟结果与文献报道的实验数据取得了较好的一致性。基于地板辐射供暖系统的蓄热特性，本文提出电力负荷波峰波谷分时段运行控制策略，可避开空气源热泵运行的不利工况以提高制热效率。针对波峰波谷分时段运行及全波谷运行这两种模式，比较供暖房间温度及运行费用的模拟结果表明，波峰波谷分时段运行模式优于全波谷运行模式。[关键词]地板辐射供暖；空气源热泵；TRNSYS；模拟SimulationResearchonLowTemperature Hot Water Floor RadiantHeatingSystem withAirSourceHeatPumpXUKe,WANGShu-gang*,JIANGShuang,ZHANGTeng-fei(Faculty of Infrastructure engineering,DalianUniversityofTechnology,Dalian, Liaoning 116024,China)[Abstract]Lowtemperaturehotwaterfloorradiantheatinghasadvantagesofbeingcomfortableandsavingenergyandspace.Theairsourceheatpumpisbelievedtobeanidealheatsourceofthelowtemperaturehotwaterfloorradiantheatingsystembecauseofitshigh-efficiency,stabilityandgoodmatchingwiththefloorradiantheatingsystem.Thecombinationofairsourceheatpumpandfloorradiantheatingsystemmaymakefulluseoftheheatstoragecapacityoftheenclosureandeachstructurallayerofthefloor,whichreducestheinfluenceofenvironmenttemperaturechangesontheheatingperformanceoftheairsourceheatpump.Inthispaper,atransientsimulationmodeloflowtemperaturehotwaterfloorradiantheatingsystemwithanairsourceheatpumpforahigh-risebuildingwasdevelopedbyusingTRNSYSandEESsoftware,andithasagoodagreementwiththereportedexperimentaldata.Peakandoff-peakintermittentrunningcontrolstrategywaspresentedherebasedontheheatstorageproperties,whichcanimprovetheheatingefficiencythroughavoidingbadworkingconditionsoftheairsourceheatpump.Bycomparingtheheatingroomtemperatureandoperationcostoftwokindsofoperationmodes,i.e.,peakandoff-peakintermittentoperationandoff-peakrunning,theformerisbetterthanthelatter.[Keywords] Floor radiantheating;Airsourceheat pump;TRNSYS;Simulation的56%~58%[1]。在众多供暖方式中，低温地板辐射供暖通过以辐射为主的换热方式向室内供暖，因其室内卫生、舒适性强、比传统供暖方式节能20%~30%等优势[2]，得到了广泛的应用。空气源热泵以