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The building balance point temperature is the outdoor air temperature when the heat gains of the building are equal to the heat losses. [1] Internal heat sources due to electric lighting, mechanical equipment, body heat, and solar radiation may offset the need for additional heating although the outdoor temperature may be below the thermostat set-point temperature.
Climatological normal or climate normal (CN) is a 30-year average of a weather variable for a given time of year. [1] Most commonly, a CN refers to a particular month of year , but it may also refer to a broader scale, such as a specific meteorological season . [ 2 ]
In the last twenty years, researchers have also developed advanced thermal comfort models that divide the human body into many segments, and predict local thermal discomfort by considering heat balance. [76] [77] [78] This has opened up a new arena of thermal comfort modeling that aims at heating/cooling selected body parts.
If the mean daily temperature is 65 °F, no degree days are counted. If the mean daily temperature is below 65 °F, the mean degrees Fahrenheit below 65 °F are counted as the heating degree day. If the mean daily temperature is above 65 °F, the mean degrees Fahrenheit above 65 °F are counted as the cooling degree day.
The atmospheric burden of greenhouse gases due to human activity has grown especially rapidly during the last several decades (since about year 1950). For carbon dioxide, the 50% increase (C/C 0 = 1.5) realized as of year 2020 since 1750 corresponds to a cumulative radiative forcing change (ΔF) of +2.17 W/m 2. [6]
Image credits: daganfish #11. I have a BA in psychology. When I was in my junior year of college I had a guy who I randomly happened to bump into often while smoking in between classes.
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An APY is the total amount of interest you'll earn on your deposit over one year, including compound interest, expressed as a percentage, with many accounts compounding daily or monthly. Sources