Web其英文为Heating Degree Day（HDD），相对应的概念为降温度日数（Cooling Degree Day）（CDD）。 中文名 采暖度日数 外文名 HDD18 平均温度 低于18℃ 该采暖度日 … WebHeating degree days are a measure of how much (in degrees), and for how long (in days), the outside air temperature was below a certain level. They are commonly used in calculations relating to the energy consumption required to heat buildings. Back to top Why are heating degree days useful?

HDD（取暖指数(HeatingDegreeDay)）_百度百科

WebHeating degree-day figures relates to a "base temperature" and provides a measure of how much (in degrees), and for how long (in days), the outside temperature was below that base temperature. In the US the standard base temperature is 65oF (18.3 oC). featherhide base

Heating Degree Days

WebHeating Degree Days are used to describe, assess and compare the heat consumption of buildings. The same approach can be used to assess the energy consumption for … Web78°F - 65°F = 13 Cooling Degree Days Example 2: The high temperature for a particular day was 33°F and the low temperature was 25°F. The temperature mean for that day … Web" Heating degree days ", or " HDD ", are a measure of how much (in degrees), and for how long (in days), outside air temperature was lower than a specific " base temperature " (or " balance point "). They are used for calculations relating to the energy consumption … feather her nest bridal shower