JIS-A-4112-1988-ENG.pdf
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1、, C l UDC 662.996 : 551.521.1 IS JAPANESE INDUSTRIAL STANDARD Solar Collectors Translated and Published by Japanese Standards Association Printed in Japan - - 18 S Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not
2、for Resale, 03/13/2007 19:54:45 MDTNo reproduction or networking permitted without license from IHS -,-,- In the event of any doubt arising, the original Standard in Japanese is to be final authority. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employe
3、es/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 19:54:45 MDTNo reproduction or networking permitted without license from IHS -,-,- - - J I S A*41L2 88 Li933608 00013Lb 1i UDC 662.995: 551.521.1 JAPANESE INDUSTRIAL STANDARD J I S Solar Collectors A 4112-1988 1. ScoDe This Japanese Industr
4、ial Standard specifies solar collectors, hereinafter referred to as the “collectors“, of nonpersuit type such as flat plate type, vacuum glass tube type, etc. for forced circulation of collection medium. Therefore, this applies to collectors provided with reflector, those provided with light condens
5、er, and those provided with actuation medium for heat transfer to heat collecting medium from heat collecting body such as heat pipe, but does not apply to collectors having a large heat capacity or heat accumulation function in inside of collector. Remark: In this Standard the units and numerical v
6、alues shown in Standard value. 1 are in accordance with the conventional units and are d) 2, Definitions For the purposes of this Standard following definitions apply: heat collecting body The part to absorb the incident solar radiation energy to convert to heat energy and to transfer to heat collec
7、ting medium. heat collecting medium system by taking out heat energy from the collector. The medium to transfer to heat utilizing actuation medium The medium to transfer heat energy from heat collecting body to heat collecting medium in heat pipe type, heat pump type collectors, etc. and includes co
8、olant of heat pump type. non-freezing solution and piping due to freezing of water, and herein it is limited to aqueous solution. The liquid to prevent breakage of collector transmitting body decrease convection from heat collecting body and the radiation heat loss by transmitting solar light. The p
9、art to be used for surface of collector to reflecting body collecting body by reflecting the solar radiation energy. The part to increase the incident amount to the heat Applicable Standards: See pages 31 and 32. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee
10、=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 19:54:45 MDTNo reproduction or networking permitted without license from IHS -,-,- 2 A 4112-1988 converging body folding plate state to converge the solar radiation energy optically into heat collecting body. The reflecting body
11、 of lens and curved surface or heat collecting plane The plane just before the heat collecting body which is parallel to the plane for the projection area to be maximum by parallel light rays of heat collecting body. However, in collector provided with a converging body, the plane for the opening ar
12、ea of converging body to be maximum. overall area of collector maximum length of collector excluding protruding parts such as collector metal fittings, piping connecting opening, etc. The product of the maximum width and the solar radiation intensity of heat collecting surface solar radiation energy
13、 for the unit area of heat collecting surface to receive in unit time. The amount of heat collecting amount collecting medium by collector, and it is the value of circulation heat capacity flow rate (mass flow rate x average specific heat) multi- plied by temperature difference at outlet and inlet.
14、However, in the case of heat pump type, the value of mass flow rate of actuation medium multiplied by specific enthalpy difference. The heat energy to be obtained in heat instantaneous heat collection efficiency collector (excluding heat pump type, and in the case of heat pump type, the difference o
15、f heat collection amounts over a definite period of time in the state where solar radiation exists and the state where solar radiation does not exist at the point where d (average tempera- ture of heat collecting medium .subtracted by atmospheric temperature) is same, divided by the integral value i
16、n the same period of time of the solar radiation energy incident to the total area of collector. The heat collecting amount of blank burning The fact receiving the solar radiation energy in the state of the collector containing no heat collecting medium and in the case of heat pipe type and heat pum
17、p type collectors, in the state where the actuation medium is entered. ray transmissivity In the case of collectors having transmitting body, the ratio of transmitted energy through transmitting body relative to incident energy. water service direct connecting type The system to supply water by conn
18、ecting directly with water service by using the pressure reducing valve, check valve, relief valve, etc. highest using pressure The highest pressure of heat collecting medium allowable in using state of collector. remarkable deformation The state where the structural bodies of collector are deformed
19、 by receiving outer force or heat and the safety, functional ability, reliability or endurance of collector is interferenced. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 19:54:45 MDTNo
20、reproduction or networking permitted without license from IHS -,-,- 3 A 4112-1988 solar simulator solar spectra in order to carry out heat collecting performance test of collector or the like in a room. The apparatus to generate light rays simulated to radiation illuminance The radiation energy whic
21、h the radiated surface receives per unit area per unit time by solar simulator. heat collection efficiency variable The value of temperature differ- ence between the average temperature of heat collecting medium and the air temperature or environmental temperature divided by solar radiation intensit
22、y of heat collecting surface or radiation illuminance. 3. Types of Collectors and Name of Each Part Types of collectors and the name of each part shall be in accordance with Table 1 and Fig. 1. Table 1. Types of Collectors I Contents Type I Flat plate type Vacuum glass tube type Heat pump type Heat
23、pipe type The type of which light receiving surface side of heat collecting body stored in a casing of metal, resin or the like is covered by transmitting body or the type having no transmitting body is included The type in which the heat collecting body is held in vacuum glass tubes. The type in wh
24、ich the solar light energy obtained by heat collecting body and the heat in atmosphere are collected by heat pump and having no blower. The type in which the solar light energy obtained by heat collecting body is collected by heat pipe. Copyright Japanese Standards Association Provided by IHS under
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