*c-Ejector

Small component – big impact

*c-Ejector is used for efficiency increase in CO2 booster systems. In connection with a high pressure valve, three different types of gas ejectors and two types of liquid ejectors may be combined as required.

Coming soon – Product launch ejector EJCO2 in Q1/2025

Developed in collaboration with the TU Dresden, we will be presenting the new EJCO2 ejector at Chillventa 2024.

The latest version of the EJCO2 ejector works with a simpler circuit than the previous model, the *c-Ejector. Measurement results show an efficiency increase of up to 40% compared to a flash gas bypass system at maximum outside temperatures.

Pre-release of the EJCO2 Ejector: CHILLVENTA 2024

Felix Pfeiler, Project Manager Refrigeration I R&D, presented the functionality of the EJCO2 Ejector at the CHILLVENTA expert forum and explained the project “Development of a technology for efficient refrigerant subcooling based on an ejector and the refrigerant CO2”.

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Features

  • Efficiency increases of 15 – 30% are possible (compared to a booster system with flash gas bypass)
  • Lower compressor capacity required (smaller/fewer compressors)
  • Individually adaptable to every application and every performance parameter

  • Air conditioning and/or heat pump evaporator may be integrated

  • Extended lifetime of the parallel compressor, even at low outside temperatures
  • High reliability (no moving or rotating parts)
  • Short payback time (depending on the size of the plant)

Technical data

Refrigerant R744
Max. operating pressure 120 bar
Tested according to AD 2000 1.1 x 120 bar
Temperature of medium -50°C … +150°C
Ambient temperature -10°C … +50°C
Material stainless steel 1.4301
Weight 1,3 kg

Function – Principle of Operation

*c-Ejector utilises the expansion work present in the refrigerant to draw in another partial flow and convey it to a higher pressure level.

The CO2 leaving the gas cooler at high pressure is accelerated in the motive nozzle. As a result, the static pressure drops. The flow exiting the motive nozzle has a lower pressure than the suction pressure of the MT- stage.

Either gas or liquid can be extracted from the suction side of the MT-compressor.

Both partial flows mix in the mixing chamber.

The flow is decelerated again in the diffuser, which raises the pressure to medium pressure level. After this stage, the mixture is fed into the medium-pressure separator.

You can find more information about our *c-Ejector on our Data Sheet.

Funktionsprinzip

Contact persons

Dirk Leuteritz

Dirk Leuteritz

Sales Manager

Phone: +49 351 20797-36

Sebastian Zürich

Sebastian Zürich

Head of Project Planning

Phone: +49 351 20797-29

Sebastian_Reupricht

Sebastian Reupricht

Sales Aftersales

Phone: +49 351 20797-50

Contact

Discover a sustainable future with compact refrigeration technology! Our team will be happy to support you with efficient and environmentally friendly refrigeration solutions. Get in touch with us.