制冷技术
製冷技術
제랭기술
REFRIGERATION TECHNOLOGY
2014年
1期
12-17
,共6页
许可%王树刚%蒋爽%张腾飞
許可%王樹剛%蔣爽%張騰飛
허가%왕수강%장상%장등비
地板辐射供暖%空气源热泵%TRNSYS%模拟
地闆輻射供暖%空氣源熱泵%TRNSYS%模擬
지판복사공난%공기원열빙%TRNSYS%모의
Floor radiant heating%Air source heat pump%TRNSYS%Simulation
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。
低溫熱水地闆輻射供暖具有舒適、節能和節省空間等優勢。空氣源熱泵以其高效、穩定及其與前者的良好匹配性被認為是低溫熱水地闆輻射供暖繫統的理想熱源。空氣源熱泵與地闆輻射供暖繫統相結閤能充分利用圍護結構及地闆各構造層等蓄熱體的蓄熱特性,減小環境溫度變化對空氣源熱泵製熱性能的影響。本文利用TRNSYS和EES軟件建立某高層建築以空氣源熱泵為熱源的低溫熱水地闆輻射供暖繫統的瞬態倣真模型,模擬結果與文獻報道的實驗數據取得瞭較好的一緻性。基于地闆輻射供暖繫統的蓄熱特性,本文提齣電力負荷波峰波穀分時段運行控製策略,可避開空氣源熱泵運行的不利工況以提高製熱效率。針對波峰波穀分時段運行及全波穀運行這兩種模式,比較供暖房間溫度及運行費用的模擬結果錶明,波峰波穀分時段運行模式優于全波穀運行模式。
저온열수지판복사공난구유서괄、절능화절성공간등우세。공기원열빙이기고효、은정급기여전자적량호필배성피인위시저온열수지판복사공난계통적이상열원。공기원열빙여지판복사공난계통상결합능충분이용위호결구급지판각구조층등축열체적축열특성,감소배경온도변화대공기원열빙제열성능적영향。본문이용TRNSYS화EES연건건립모고층건축이공기원열빙위열원적저온열수지판복사공난계통적순태방진모형,모의결과여문헌보도적실험수거취득료교호적일치성。기우지판복사공난계통적축열특성,본문제출전력부하파봉파곡분시단운행공제책략,가피개공기원열빙운행적불리공황이제고제열효솔。침대파봉파곡분시단운행급전파곡운행저량충모식,비교공난방간온도급운행비용적모의결과표명,파봉파곡분시단운행모식우우전파곡운행모식。
Low temperature hot water floor radiant heating has advantages of being comfortable and saving energy and space. The air source heat pump is believed to be an ideal heat source of the low temperature hot water floor radiant heating system because of its high-efficiency, stability and good matching with the floor radiant heating system. The combination of air source heat pump and floor radiant heating system may make full use of the heat storage capacity of the enclosure and each structural layer of the floor, which reduces the influence of environment temperature changes on the heating performance of the air source heat pump. In this paper, a transient simulation model of low temperature hot water floor radiant heating system with an air source heat pump for a high-rise building was developed by using TRNSYS and EES software, and it has a good agreement with the reported experimental data. Peak and off-peak intermittent running control strategy was presented here based on the heat storage properties, which can improve the heating efficiency through avoiding bad working conditions of the air source heat pump. By comparing the heating room temperature and operation cost of two kinds of operation modes, i.e., peak and off-peak intermittent operation and off-peak running, the former is better than the latter.