Performance Comparison of Residential Hot Water Systems; Period of Performance: January 30, 2001 through July 29, 2002

Wiehagen, J. ; Sikora, J. L.

National Renewable Energy Laboratory (U.S.)

关键词: Buildings;    Geothermal Legacy;    32 Energy Conservation, Consumption, And Utilization;    Water Heating Geothermal Legacy;    Water;   

DOI  :  10.2172/15003590
RP-ID  :  NREL/SR-550-32922
RP-ID  :  AC36-99-GO10337
RP-ID  :  15003590

美国|英语

来源: UNT Digital Library

【 摘 要 】

A laboratory test experiment was conducted to measure the energy performance of two different types of water heaters--electric storage tank and demand (tankless)--in two types of plumbing distribution systems--copper piping in a tree configuration and cross-linked polyethylene (PEX) piping in a parallel configuration. Two water-usage patterns were used in the week-long experiments and in the annual simulations: one representing a high-usage home and the other representing a low-usage home. Results of weekly performance testing and annual simulations of electric water-heating systems are presented.