A prototype ejector chiller with nominal cooling power of 40 kW, designed according to the “CRMC” criterion, has been tested by our research group since 2011. The prototype has undergone several refinements and finally has been upgraded to R1233zd(E), which is non-flammable, has low-GWP and favourable thermodynamic properties, i.e. “dry-expansion” and moderate pressure at generator. In terms of saturation pressure curve, the new fluid is similar to R245fa, which was previously used in the prototype. Hence, R1233zd(E) has been basically used as a “drop-in” replacement. The ejector chiller was tested at different evaporation temperatures (2.5 to 10°C), typical of air conditioning applications. Saturation temperatures at generator from 95 to 105°C have been selected as representative of waste-heat recovery. The experimental findings prove that the CRMC ejector has a satisfactory performance with the new working fluid.

根据“ CRMC”标准设计的标称冷却功率为40 kW的喷射器冷却器原型，自2011年以来已经由我们的研究小组进行了测试。该原型经过了多次改进，最终升级为R1233zd（E），不可燃，具有低全球升温潜能值和良好的热力学特性，即“干膨胀”和发电机处适度的压力。就饱和压力曲线而言，新流体类似于原型中先前使用的R245fa。因此，R1233zd（E）已基本用作“嵌入式”替换。在空调应用中典型的不同蒸发温度（2.5至10°C）下测试了喷射冷却器。已选择发生器的饱和温度为95至105°C作为废热回收的代表。