A critical comparison of energy efficiency evaluation for condensing units in Chinese National Standard and EU Regulation

摘要

For the energy efficiency evaluation of condensing units, the European (EU) Eco-design Regulation No 2015/1095 sets ecological standards, and Chinese National Standard GB/T 21363-2008 makes requirements on the performance of the units. In this paper, a critical comparison of the energy efficiency evaluation of condensing units for medium temperature application set in No 2015/1095 and GB 21363-2008 is made and illustrated by a time table of the Copeland Condensing Units to be admitted to Chinese and European market. With a typical condensing unit as the sample, charts are developed and the numerical relationship of coefficient of performance (COP) and Season Energy Performance Ratio (SEPR) is calculated to find the disparity between No 2015/1095 and GB/T 21363-2008. It is concluded that GB/T 21363-2008 requires the COP threshold values too much higher than No 2015/1095 does but considers little ecological environmental protection.