Title
Estimating Daily Domestic Hot-Water Use In North American Homes
Report Number
FSEC-PF-464-15
URL
http://publications.energyresearch.ucf.edu/wp-content/uploads/2018/06/FSEC-PF-464-15.pdf
Keywords
Water Heating; Buildings
Abstract
Water heating in the U.S. is a major component of total energy 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 stand by losses), the actual volume of daily water to be heated is a fundamental quantity for any reasonable estimate of hot-water energy use. This study uses measured annual hot-water use in various North American climates to evaluate hot-water use in homes. The findings show that the quantity of hot-water use is correlated most closely to the mains water temperatures and the occupant demographics of the homes with 70% of the available measurement data explained when occupant demographics are well known. The study proposes a new methodology for estimating the quantities of hot-water use in homes as a function of climate location and occupancy demographics, segregating machine hot-water use, fixture hot-water use, and distribution system hot-water waste.
Date Published
6-30-2015
Subjects
Buildings; Water Heating
STARS Citation
Florida Solar Energy Center and Parker, Danny, "Estimating Daily Domestic Hot-Water Use In North American Homes" (2015). FSEC Energy Research Center®. 144.
https://stars.library.ucf.edu/fsec/144
Notes
Presented at the 2015 ASHRAE Conference
This article or paper was published in ASHRAE Transactions, Volume 121, Part 2. Copyright © 2015 ASHRAE.