At the beginning of the presentation I will do an introduction of the major problems we see today with transcritical R-744 refrigeration systems:
1) energy costs
2) high ambient temperatures
ETE is working on both issues: Introducing an integrated subcooling compressor with very high suction pressure to cool down the gascooler outlet temperature. The first slides explain the problem of high temperatures with R-744 systems. With the help of refrigeration schematics and log p h diagrams. It will demonstrate what happens in the system when specific ambient temperature are exceeded. Especially in the evaporators and what it means to the refrigeration temperature.
The core of the presentation is a detail ...