The Effect of Measurement Uncertainty and Environment on Domestic Solar Water Heating Systems’ Energy Efficiency Grades☆

@inproceedings{Yuwu2015TheEO,
  title={The Effect of Measurement Uncertainty and Environment on Domestic Solar Water Heating Systems’ Energy Efficiency Grades☆},
  author={Li Yuwu and Cheng Linlin and Yang Dandan and Liu Huakai and Liu Lei and Yan Shifeng and Tian Liangguang and Sun Yuquan},
  year={2015}
}
Abstract In China, two important national standards were implemented on Aug 1st, 2012, one is ‘Specification of domestic solar water heating systems’ (GB/T 19141-2011), the other is ‘Minimum allowable values of energy efficiency and energy efficiency grades for domestic solar water heating systems’ (GB 26969-2011). According to these two standards, the energy efficiency grades indicator CTP (coefficient of thermal performance) should be tested and calculated by daily useful energy and average… CONTINUE READING