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Convective heat transfer coefficients in a full-scale room with and without furniture
被引:31
作者:
Wallentén, P
[1
]
机构:
[1] Lund Inst Technol, Dept Bldg Sci, S-22100 Lund, Sweden
关键词:
heat transfer;
convective;
coefficient;
envelope;
energy;
model;
in situ measurements;
wall;
window;
temperature dependency;
air;
thermocouples;
D O I:
10.1016/S0360-1323(00)00070-6
中图分类号:
TU [建筑科学];
学科分类号:
0813 ;
摘要:
The convective heat transfer coefficient at an outer ambient wall with a window exposed to natural climate was measured in a room with and without furniture. The method used was to estimate the heat flow from measured temperatures and solar radiation. The convective heat transfer was calculated as the difference between the heat flow through the building element and the calculated long-wave radiation. Even though the accuracy was at best +/- 15%, the effect of different heating and ventilation strategies could clearly be detected. Local coefficients may be more than 10 times the expected, due to ventilation or position of the radiator. (C) 2001 Elsevier Science Ltd. All rights reserved.
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页码:743 / 751
页数:9
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