Final reliability and materials design guidelines for solar domestic hot-water systems
This document provides solar-energy-system engineers, designers, and manufacturers with a stand-alone publication containing the concepts and techniques for developing reliable solar domestic hot-water systems. The minimum instrumentation required to determine if a domestic hot-water system is operating properly is discussed, and system start-up and trouble-shooting information is supplied. Detailed sizing, design, or installation information is not provided. This document includes an evaluation of the reliability of six generic solar domestic hot-water systems - drain-down, drain-back, circulating-water, thermosiphon, antifreeze, and air systems. Failure-rate data for these evaluations were obtained from the open literature. Reliability block diagrams are used to analyze collector panels as well as the generic systems. System reliability results are shown as estimated mean time between failures, based on 6-hr/d operation. For other operating times, the duty-cycle concept may be applied similarly. Materials considerations are covered for common components in solar domestic hot-water systems. Information is also presented on glycol-testing and water-scaling predictions.
- Research Organization:
- Argonne National Lab., IL (USA)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 5202196
- Report Number(s):
- ANL/SDP-11; ON: DE82016180
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
140907* -- Solar Thermal Utilization-- Water Heating
APPLIANCES
CONTAINERS
CONTROL EQUIPMENT
DESIGN
EQUIPMENT
FLOW REGULATORS
HEAT EXCHANGERS
HEATERS
MATERIALS
PASSIVE SOLAR WATER HEATERS
PUMPS
RECOMMENDATIONS
RELIABILITY
SOLAR COLLECTORS
SOLAR EQUIPMENT
SOLAR WATER HEATERS
STORAGE
TANKS
VALVES
WATER HEATERS