GEOTHERMAL TECHNOLOGIES LEGACY COLLECTION - Bibliographic Citation


Bibliographic Citation



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Full Text: Citation URL: http://www.osti.gov/geothermal/product.biblio.jsp?osti_id=922802
Title: Residential hot water distribution systems: Roundtablesession
Creator/Author: Lutz, James D. ; Klein, Gary ; Springer, David ; Howard, Bion D.
Publication Date:2002 Aug 01
OSTI Identifier:OSTI 922802
Report Number(s):LBNL--50409
DOE Contract Number:DE-AC02-05CH11231
Document Type:Conference
Specific Type:
Coverage:
Resource Relation:Conference: ACEEE 2002 summer study, Asilomar ConferenceCenter, Pacific Grove, California, 08/2002
Other Number(s):
Research Org:Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US)
Sponsoring Org:USDOE; California Energy Commission
Subject:32; COMBUSTION; DESIGN; DISTRIBUTION; EFFICIENCY; GEOTHERMAL HOT-WATER SYSTEMS; HEAT LOSSES; HOT WATER; RESIDENTIAL BUILDINGS; WASTE WATER; WASTES; WATER; WATER HEATERS
Keywords:hot water systems hot water watsewater water heaters
Description/Abstract:Residential building practice currently ignores the lossesof energy and water caused by the poor design of hot water systems. Theselosses include: combustion and standby losses from water heaters, thewaste of water (and energy) while waiting for hot water to get to thepoint of use; the wasted heat as water cools down in the distributionsystem after a draw; heat losses from recirculation systems and thediscarded warmth of waste water as it runs down the drain. Severaltechnologies are available that save energy (and water) by reducing theselosses or by passively recovering heat from wastewater streams and othersources. Energy savings from some individual technologies are reported tobe as much as 30 percent. Savings calculations of prototype systemsincluding bundles of technologies have been reported above 50 percent.This roundtable session will describe the current practices, summarizethe results of past and ongoing studies, discuss ways to think about hotwater system efficiency, and point to areas of future study. We will alsorecommend further steps to reduce unnecessary losses from hot waterdistribution systems.
Publisher:American Council for an Energy-Efficient Economy,Washington, DC
Country of Publication:US
Language:English
Size/Format:Medium: ED
Rights:
Availability:
System Entry Date:2008 Mar 13
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