Technical code for solar-plus-supplementary water heating system (tank capacity more than 0.6 m3)
1 Scope
This standard specifies the terms, system classification, technical requirements, inspection rules, etc. of solar-plus-supplementary water heating system (tank capacity more than 0.6 m3).
This standard is applicable to solar-plus-supplementary water heating system, where the effective capacity of a single tank is more than 0.6 m3.
This standard is not applicable to solar water heating system supplemented by heat pump.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 4706.1 Household and similar electrical appliances—Safety—Part 1: General requirements
GB 4706.12 Safety of household and similar electrical appliances—Particular requirements for storage water heaters
GB/T 12936 Solar energy—Thermal application—Terminology
GB/T 18713 Solar water heating systems—Design, installation and engineering acceptance
GB/T 20095 Assessment code for performance of solar water heating systems
GB/T 21434 Phase change boiler
GB/T 23150 Tubular heating element for water heater
GB/T 29160 Test methods for solar-plus-supplementary water heating system (tank capacity more than 0.6 m3)
GB 50015 Code for design of building water supply and drainage
GB 50041 Code for Design of Boiler Plant
JB/T 7985 Specification for small type boilers and atmospheric hot water boilers
JB/T 10393 Specification for electric boilers
ISO 9488:1999 Solar energy—Vocabulary
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Steam Boiler Safety Technical Supervision Administration Regulation (LAOBUFA [1996] No.276)
Hot-water Boiler Safety Technical Supervision Administration Regulation (LAOGUOZI [1991] No.8)
Regulations on Safety Supervision of Small Type and Atmospheric Hot Water Boilers (State Bureau of Quality and Technical Supervision, Announcement No.11, June 15, 2000)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 12936, GB/T 18713, GB/T 20095 and ISO 9488:1999 and the following apply.
3.1
solar-plus-supplementary water heating system
system that combines solar energy and supplementary energy and can provide the required hot water independently of solar energy
3.2
the coefficient of heat performance of solar-plus-supplementary water heating system
CHP
for the solar-plus-supplementary water heating system, the heat performance test of solar energy heating alone shall be carried out first, and then the heat performance test of solar-plus-supplementary water heating system shall be carried out. The ratio of the daily useful energy of the solar heating collector per unit contour aperture area inspected by the latter to the same performance index inspected by the former is the coefficient of heat performance of the system
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and units
5 Classification and characteristics
6 Technical requirements
7 Documentation
8 Inspection rules
