建筑热能通风空调
建築熱能通風空調
건축열능통풍공조
BUILDING ENERGY & ENVIRONMENT
2014年
2期
58-60
,共3页
太阳能采暖系统%蓄热水箱%温度分层
太暘能採暖繫統%蓄熱水箱%溫度分層
태양능채난계통%축열수상%온도분층
solar heating system%heatstorage tank%tem perature stractification
本文通过对太阳能采暖系统的理论分析，建立了采暖水箱模型，利用C FD 软件在有无辅助加热的两种工况下，模拟水箱内部流动、换热、温度分层过程，结果表明，太阳能集热器管路水流速在0.01~0.05m/s时，水箱内部分层非常明显，水箱运行内部扰流小；流速0.09~0.35m/s，随着流速增大，水箱分层越来越不明显，水箱顶端的高温层被破坏。
本文通過對太暘能採暖繫統的理論分析，建立瞭採暖水箱模型，利用C FD 軟件在有無輔助加熱的兩種工況下，模擬水箱內部流動、換熱、溫度分層過程，結果錶明，太暘能集熱器管路水流速在0.01~0.05m/s時，水箱內部分層非常明顯，水箱運行內部擾流小；流速0.09~0.35m/s，隨著流速增大，水箱分層越來越不明顯，水箱頂耑的高溫層被破壞。
본문통과대태양능채난계통적이론분석，건립료채난수상모형，이용C FD 연건재유무보조가열적량충공황하，모의수상내부류동、환열、온도분층과정，결과표명，태양능집열기관로수류속재0.01~0.05m/s시，수상내부분층비상명현，수상운행내부우류소；류속0.09~0.35m/s，수착류속증대，수상분층월래월불명현，수상정단적고온층피파배。
A m odel of heat storage tank is built based on the theoretical analysis of the heating system . In the tw o conditionson oroffthe auxiliary heating,the internalflow ,heatexchangerand tem perature stratification ofthe tank are simulatedwiththehelpofCFD software.Theresultsshow whenthevelocityofthesolarloopisbetween0.01and 0.05m/s, the layers of storage tank are very obvious ,w hen the velocity is betw een 0.09 and 0.35m/s, as the velocity increases,the high-tem perature layer is destroyed in the top of the tank,finally there is no layer in the tank.
