So what are degree days? Degree days are essentially a simplified representation of outside-air-temperature data. They are widely used for calculations relating to the effect of outside air temperature on building energy consumption. "Heating degree days", or "HDD", are a measure of how much...
Heating Degree-Days over Greece as an Index of Energy Consumption, International Journal of Climatology, 24: 1817-1828 (En).Matzarakis A, Balafoutis C. 2004. Heating degree-days over Greece as an index of energy consumption. Int. J. Clim. 24(14): 1817-1828....
Heating and cooling degree days are a way to analyze climate control needs - learn more about how they are useful for estimating energy usage.
These calculations are based on daily weather data of 40 meteorological stations of the Hellenic National Weather Service published in the Monthly Climatic Bulletin. The regionalization of the 40-point stations' data was achieved using the multiple regression analysis technique and a digital terrain ...
The first thing to notice is that Rio has virtually no heating degree days at any base temperature, because it has a warm climate. LA is still pretty good, Madrid is getting chilly in winter and New York and London are pretty cold. ...
Degree-day method is very simple but essential index to estimate heating and cooling energy demand in buildings. It has been neglected, however, for the simplicity so it is difficult to find any DB for south Korean cities. Even meteorological department of S. Korea doesn't report the data of...
Case study of Sulaimani, Iraq of inequity.The annual insolation value (AIV) was calculated and factored using cooling (CDD) and heating degree days (HDD) ratios in each month to ... SJ Jalal,RK Bani - 《Energy for Sustainable Development》 被引量: 0发表: 2016年 加载更多...
Sol Energy (2001) J. Marx Ayres et al. Historical development of building energy calculations ASHRAE J (1995) R.D. Fischer et al. Degree-days method for simplified energy analysis ASHRAE Trans (1982) ASHRAE Handbook of Fundamentals. American Society of Heating, Refrigerating and Air-Conditioning...
Degree-day calculations sum the difference between the average daily temperature and a reference base temperature across the year; an example is the widely used American Society of Heating, Refrigerating, and Air-Conditioning (ASHRAE) method [3], [4], [5]. For heating degree-days (HDDs), dev...
A similar measurement,cooling degree day (CDD), reflects the amount of energy used to cool a home or business. One caveat is that heating degree days are extremely localized. Heating (and cooling) needs vary greatly depending on the geographical region. And further, the average HDD in one bu...