在分析比较了标定热箱法和防护热箱法工作原理的基础上,提出了基于防护热箱法检测门窗型材传热系数和节能评价的基本思路；开发了门窗型材传热性能检测装置,并进行了系统性能分析测试.结果表明这种检测装置能够准确测试门窗型材传热系数并进行节能评价.%This paper presents a basic idea and method, namely testing thermal transmittance and evaluating energy conservation of doors and windows profiles based on guard hot box on the basis of analysis of principle for calibrated and guard hot box. We develop verifying attachment for thermal transmittance of doors and windows profiles,and analyse system performance. The results show the attachment can truly tests thermal transmittance and evaluats energy conservation of doors and windows profiles.
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