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Most value difference and ventilation louvers me daily temperature radiation shield

Number of visits: Date:2016-04-11

New automatic weather station on the radiation thermometer screen and ventilation hood temperature observation system daily temperature difference between the value of the distribution of contrast, crude slip, consistent rate and other statistics and averages, time of day appears most value compared to most Japanese Compare the difference between the value of the relationship between wind speed and analyzed, and validated the revised methodology most value daily temperature thermometer screen. The results show that: the distribution box and showed the right ventilation louvers radiation cover most value daily temperature difference contrast bias state, and the greater the degree of deviation, not normal; the daily maximum temperature and the minimum temperature of concordance rates were 90.0% and 81.5%, there is a big difference between the two, but the rough is consistent slip, slightly higher than 3.0%; compared with the ventilation hood temperatures radiation observing system, the most value of the day thermometer screen data about the overall high 0.2 ℃, while it appears there are different degrees of time lag; daily temperature difference between the value will be enhanced with ambient wind speed decreases, especially when the wind speed is greater than 4.5 m · s-1, the difference can be reduced to less than 0.1 ℃; to Winds from the environment as the main parameters of the temperature difference between the revised methodology will be reduced to the maximum temperature of 0.03 ℃, consistent rate increased to 95.2%, the lowest temperature difference narrowed to 0.01 ℃, consistent rate increased to 94.1%.

TypeInfo: Technical Article

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