cooling degree day


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cooling degree day

[′kül·iŋ di′grē ‚dā]
(mechanical engineering)
A unit for estimating the energy needed for cooling a building; one unit is given for each degree Fahrenheit that the daily mean temperature exceeds 75°F (24°C).
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Futures, options, and swaps exist on heating and cooling degree days.
Caption: FIGURE 3 Cooling-season average kWh per cooling degree day.
7% more cooling degree days when compared to 2013, attributing 45,433 kWh of total savings to the difference in roof insulation after the upgrade and accounting for weather conditions.
Using regression analysis by incorporating population weighted heating and cooling degree days, the study found carbon emissions to be positively related to cooling requirements of household while negatively related to per capita heating requirements.
Heating and cooling degree days are measured separately, so if you're tracking both, you'll need separate spreadsheets for each.
The Annual issue contains monthly and annual averages of temperature, precipitation, temperature extremes, freeze data, soil temperatures, evaporation, and a recap of monthly cooling degree days.
The derivatives are based on heating degree days and cooling degree days and cover 35 cities worldwide, of which 18 are in the United States, nine in Europe, six in Canada, and two in Japan.
13) Heating degree days calculate the daily variation in temperature at a location below 65 degrees Fahrenheit, while cooling degree days calculate the variation above 65 degrees.
As the number of cooling degree days increase, average water use tends to increase.
Looking back at the Phoenix Swap, this time with reconstructed data, AIR found that there now was an 86% chance that the contract would settle below 4,250 cooling degree days.
j] is the average number of cooling degree days in area j per year; and [RW.
The new procedure uses data on heating and cooling degree days to model the effects of weather more accurately in those industries.