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The validity and reliability of co-heating tests made on highly insulated dwellings

机译:在高度绝缘住宅上进行的共同加热试验的有效性和可靠性

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The ability of a co-heating test to accurately identify a dwelling's envelope heat-loss coefficient has been explored using dynamic thermal simulation techniques, against a number of fabric specifications ranging from 1990 UK regulation levels through to modern Passivhaus requirements. Simple analysis methods can underestimate the heat-loss coefficient, by up to 50% for the highest performance standards considered. Using the best test and analysis methods found the envelope heat loss coefficient could be determined for current stock to better than 10% accuracy in a three week test duration. However that accuracy could not be reliably achieved in a shorter period, nor could it be achieved with a dwelling specification representing emerging standards of insulation, unless longer test periods were used.
机译:通过动态热仿真技术探讨了共同加热测试准确识别住宅的包络热量损失系数的能力,从1990英国法规水平到现代公民要求的许多面料规格。简单的分析方法可以低估热量损耗系数,最高达到50%,以获得最高的性能标准。使用最佳测试和分析方法发现,在三周的测试持续时间内,可以确定信封热损耗系数以优于10%的准确度。然而,在较短时期不能可靠地实现这种精度,除非使用更长的测试时期,否则可以通过代表新出现的绝缘标准的住宅规范来实现。

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