建筑节能
建築節能
건축절능
CONSTRUCTION CONSERVES ENERGY
2014年
7期
45-48
,共4页
盛建军%刘金祥%戴霖姗%陈峰%陈高峰%章亚武
盛建軍%劉金祥%戴霖姍%陳峰%陳高峰%章亞武
성건군%류금상%대림산%진봉%진고봉%장아무
地埋管换热器%分层土壤%热响应测试%三维数值模拟%埋深
地埋管換熱器%分層土壤%熱響應測試%三維數值模擬%埋深
지매관환열기%분층토양%열향응측시%삼유수치모의%매심
ground heat exchanger%layer soil%thermal response text%3-D numerical simulation%burial depth
结合热响应测试数据，建立了三维分层土壤地埋管换热器非稳态模型，并进行了验证。通过分析比较单层、分层土壤地埋管换热器模型，结果显示分层土壤地埋管模型误差较小；通过分层土壤地埋管模型分析了100 m、80 m、60 m深度埋管的换热性能，结果显示增加埋深时，单位延米换热量随着埋深的增加而减小，验证了热短路现象存在性。
結閤熱響應測試數據，建立瞭三維分層土壤地埋管換熱器非穩態模型，併進行瞭驗證。通過分析比較單層、分層土壤地埋管換熱器模型，結果顯示分層土壤地埋管模型誤差較小；通過分層土壤地埋管模型分析瞭100 m、80 m、60 m深度埋管的換熱性能，結果顯示增加埋深時，單位延米換熱量隨著埋深的增加而減小，驗證瞭熱短路現象存在性。
결합열향응측시수거，건립료삼유분층토양지매관환열기비은태모형，병진행료험증。통과분석비교단층、분층토양지매관환열기모형，결과현시분층토양지매관모형오차교소；통과분층토양지매관모형분석료100 m、80 m、60 m심도매관적환열성능，결과현시증가매심시，단위연미환열량수착매심적증가이감소，험증료열단로현상존재성。
A three-dimensional unsteady stratified soil ground heat exchanger model is established and validated with the data of thermal response test. By comparing analysis of ground heat exchanger in single-layer and layered soil models, the results show that the ground heat exchanger model of layered soil error is smaller;the heat transfer performance of buried pipes at 100 m, 80 m and 60 m depth are analyzed through the ground heat exchanger model of layered soil, results show that heat of the unit linear meter de-creases with the increasing buried depth, and verify the existence of the thermal short circuit.
