湖南大学学报(自然科学版)
湖南大學學報(自然科學版)
호남대학학보(자연과학판)
JOURNAL OF HUNAN UNIVERSITY(NATURAL SCIENCES EDITION)
2015年
5期
134-140
,共7页
郇超%王沣浩%吴小舟%林章%王志华%王冠
郇超%王灃浩%吳小舟%林章%王誌華%王冠
순초%왕풍호%오소주%림장%왕지화%왕관
层式通风%垂直温度分布%节点模型%能量平衡
層式通風%垂直溫度分佈%節點模型%能量平衡
층식통풍%수직온도분포%절점모형%능량평형
stratum ventilation%vertical temperature distribution%nodal model%energy balance
基于层式通风房间室内空气流动特性建立了室内垂直温度分布预测模型。该模型将室内空气流动特性与热质平衡方程有机结合,并反映了室内热源强度、墙体辐射及送风参数等边界条件对室内垂直温度分布的影响。通过将模型计算结果与实验数据进行对比分析,发现室内垂直温度预测值与实验数据吻合较好,并在趋势上反映出层式通风房间室内垂直温度的变化特征。因此,本文提出的模型具有较好的预测精度,能够很好地用来指导层式通风系统的实际应用及能耗分析。
基于層式通風房間室內空氣流動特性建立瞭室內垂直溫度分佈預測模型。該模型將室內空氣流動特性與熱質平衡方程有機結閤,併反映瞭室內熱源彊度、牆體輻射及送風參數等邊界條件對室內垂直溫度分佈的影響。通過將模型計算結果與實驗數據進行對比分析,髮現室內垂直溫度預測值與實驗數據吻閤較好,併在趨勢上反映齣層式通風房間室內垂直溫度的變化特徵。因此,本文提齣的模型具有較好的預測精度,能夠很好地用來指導層式通風繫統的實際應用及能耗分析。
기우층식통풍방간실내공기류동특성건립료실내수직온도분포예측모형。해모형장실내공기류동특성여열질평형방정유궤결합,병반영료실내열원강도、장체복사급송풍삼수등변계조건대실내수직온도분포적영향。통과장모형계산결과여실험수거진행대비분석,발현실내수직온도예측치여실험수거문합교호,병재추세상반영출층식통풍방간실내수직온도적변화특정。인차,본문제출적모형구유교호적예측정도,능구흔호지용래지도층식통풍계통적실제응용급능모분석。
As a new energy-saving air supply mode,stratum ventilation system has not been widely ap-plied due to inadequate theoretical support.A mathematical model based on the characteristics of the in-door air flow was established to predict the vertical temperature profile in a stratum ventilated room.By combining the characteristics of indoor air flow with mass and energy equilibrium equations,this model gave the quantitative relationship between indoor vertical temperatures and boundary conditions such as heat source,enclosure radiation and supply air parameters.A comparative study shows that the predictions of this model fit the experiment values well.The model can represent the practical vertical temperature profiles in a stratum ventilated room.The analyses indicate that this proposed model has acceptable accura-cy and can be used for practical engineering designs and energy consumption analysis.