Water heating in the U.S. is a major component of totalenergy consumption in buildings, accounting for approximately18% of total consumption in the residential sector (EIA 2010).While there are many factors influencing hot-water energy use(location, fuel, combustion and heating efficiency, and standbylosses), the actual volume of daily water to be heated is a fundamentalquantity for any reasonable estimate of hot-water energyuse. This study uses measured annual hot-water use in variousNorth American climates to evaluate hot-water use in homes.Thefindings show that the quantity of hot-water use is correlated mostclosely to the mains water temperatures and the occupant demographicsof the homes with 70% of the available measurementdataexplainedwhenoccupantdemographicsarewellknown.Thestudy proposes a new methodology for estimating the quantitiesof hot-water use in homes as a function of climate location andoccupancy demographics, segregating machine hot-water use,fixture hot-water use, and distribution system hot-water waste.
Citation: 2015 Annual Conference, Atlanta, GA, Transactions 2015, Vol 121 pt. 2
Product Details
- Published:
- 2015
- Number of Pages:
- 13
- Units of Measure:
- Dual
- File Size:
- 1 file , 1.4 MB
- Product Code(s):
- D-AT-15-021
