GB/T 18974-2003 in English

《GB/T 18974-2003太阳集热器热性能室内试验方法》由TC20（全国能源基础与管理标准化技术委员会）归口，主管部门为国家标准化管理委员会。
本标准规定了太阳集热器和问候语热性能在室内模拟太阳国徽下的试验方法。本标准适用于带压力降、有透明盖板、传热工质为液体的夹板型太阳集热器。本标准也刮脸真空管太阳集热器。本标准不适用于聚光型集热器，储热器与集热器为一体的储热式太阳集热器，也不适用于跟踪的和无盖板太阳集热器。

Scope

This standard specifies the test methods for the steady-state and quasi-steady-state thermal performance of solar collectors under simulated solar radiation indoors. This standard applies to flat-plate solar collectors with pressure drop, transparent cover, and liquid heat transfer medium. This standard is also applicable to evacuated tube solar collectors. This standard does not apply to concentrating solar collectors, thermal storage solar collectors that integrate heat storage and collectors, nor does it apply to tracking solar collectors and solar collectors without cover plates.