Water and Energy Savings using Demand Hot Water Recirculating Systems in Residential Homes: A Case Study of Five Homes in Palo Alto, California

Ally, M.R.

Oak Ridge National Laboratory

关键词: Drinking Water;    Retrofitting;    State Government;    Occupants;    32 Energy Conservation, Consumption, And Utilization;   

DOI  :  10.2172/885864
RP-ID  :  ORNL/TM-2002/245
RP-ID  :  DE-AC05-00OR22725
RP-ID  :  885864

美国|英语

来源: UNT Digital Library

【 摘 要 】

This report summarizes a preliminary study aimed at estimating the potential of saving potable water, (and the electrical energy used to heat it), that is presently lost directly to the drain while occupants wait for hot water to arrive at the faucet (point of use). Data were collected from five single-family homes in Palo Alto, California. Despite the small sample size in this study, the results make a compelling case for retrofitting homes with hot water recirculation systems to eliminate unnecessary wastage of water at the point of use. Technical as well as behavioral and attitudinal changes towards water conservation are necessary for a fulfilling and successful conservation effort. This report focuses on the technical issues, but behavioral issues are also noted, which may be factored into future studies involving local and state governments and utility companies.