Feasibility study and roadmap to improve residential hot water distribution systems
Residential building practice currently ignores the losses of energy and water caused by the poor design of hot water systems. These losses include: the waste of water while waiting for hot water to get to the point of use; the wasted heat as water cools down in the distribution system after a draw; and the energy to reheat water that was already heated once before. A feasibility study and an action plan for a proposed research project involving residential hot water distribution systems is being developed. The feasibility study will use past work to estimate of hot water and energy loses caused by current hot water distribution systems in residences. Proposed research project, or roadmap, will develop recommendations for improvements to residential hot water distribution systems. The roadmap addresses the technical obstacles and gaps in our knowledge that prevent water and energy reductions and market adoption of water- and energy-efficient technologies. The initial results of the feasibility study are presented here along with a discussion of a roadmap to improve the efficiency of residential hot water distribution systems.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Director. Office of Science; California Energy Commission UC/CIEEE BOA C-02-01K Task Order 11
- DOE Contract Number:
- DE-AC02-05CH11231
- OSTI ID:
- 861301
- Report Number(s):
- LBNL-54841; R&D Project: E17601; BnR: 600305000; TRN: US200601%%775
- Resource Relation:
- Conference: American Water Works Association 2004 Annual Conference&Exposition, Orlando, FL, June 13-17, 2004
- Country of Publication:
- United States
- Language:
- English
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