Refrigeration Performance of Dry-ice Refrigeration System and Application of Cyclone Separator-evaporator

Abstract

If dry-ice can be generated in the CO₂ refrigeration system and the endotherm by sublimation can be used, the system can achieve a low temperature range of -50ºC or less. However, when the conventional horizontal evaporator was used, the problem that the inside of the evaporator was blocked by dry-ice and the system stopped often occurred. Therefore, a cyclone separator-evaporator was newly introduced into the system. By the introduction, the blocking is suppressed and made it possible to lower the condensation temperature. As a result, more dry-ice could be produced and then lower temperature range could be obtained.