Discover why "We Love CO₂"
Yes, you heard it right. At Danfoss Cooling, We Love CO2.
You might think that our devotion is misguided, but we can promise you that our affections are grounded in facts and modern engineering innovations. You see, despite its reputation as a pollutant, CO2 is actually one of the most sustainable refrigerants. Unfortunately, it hasn’t been possible to apply transcritical CO2 systems in all climates – until now. Watch the video to find out why.
Complete Multi Ejector portfolio for all store sizes, CO2 systems and climates
Danfoss offers a full range of Multi Ejectors – covering the needs for all store sizes, CO2 system and climates.
Multi Ejector - High pressure:
The High Pressure Ejector utilizes the energy in the high pressure gas to lift gas from the suction side (MT) moving it to the parallel compressors (IT). This provides a reduction in needed compressor capacity and energy consumption.
- For CO2 refrigeration systems with parallel compression
- The best solution for warm climates
- Optimum for system sizing from 150 kW and up
Multi Ejector - Low Pressure:
The Low Pressure Ejector recovers energy, otherwise lost in expansion, to lift the suction pressure. This reduces the consumption of the compressors.
- For CO2 booster systems
- The best solution for warm climates
- Optimum for system sizing from 40-150 kW
Multi Ejector – Liquid Ejector:
The Liquid Ejector utilizes the energy in the high pressure gas to lift liquid from the suction accumulator. It works in combination with CO2 Adaptive Liquid Management ensuring full evaporator optimization resulting in reduced energy consumption.
- For both CO2 booster systems and systems with parallel compression
- Efficient in both warm and cold climates
- Optimum for system sizing from 40-300 kW
CO₂ Adaptive Liquid Management
The new CO2 Adaptive Liquid Management (CALM) solution from Danfoss extends the portfolio of solutions for CO2 refrigeration in food retail applications. CALM includes the ground-breaking new Liquid Ejector in combination with the innovative case controller algorithm – Adaptive Liquid Control (ALC) – ensuring optimum liquid management. With CALM, the Danfoss CO2 portfolio offers solutions for all system types, store sizes and climates.
Product range
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AK-SM 850 system managerThe Danfoss AK-System Manager (AK-SM) is a modern solution for the food retail markets. The AK-SM uses the latest technology to provide the maximum benefit to the end user, both in terms of energy saving optimization, control options and user friendly access. -
AK-CC 550AAK-CC 550A is a flexible case/room controller. AK-CC 550A features energy optimization of the complete case and predefined application types for quick adaptation to different cases or cold room setups.
How to choose the right Multi Ejector Solution™
3 main factors to consider when designing your transcritical CO2 system with a Multi Ejector Solution™.
Documents
| Type | Name | Language | Valid for | Updated | Download | File type |
|---|---|---|---|---|---|---|
| Brochure | Save energy and protect the environment with CO2 solutions - Special version for Food Retail | English | Multiple | 3.3 MB | ||
| Brochure | Save energy and protect the environment with CO2 solutions - Special version for Food Retail | French | Multiple | 02 Jul, 2018 | 3.3 MB |
Software
The truth is Cool(selector®2)
Coolselector®2 features unbiased calculations for the selection of refrigeration and air conditioning components based on the user’s requirements or based on standard operating conditions.
Learning
Case studies
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The Danfoss Multi Ejector range for CO2 refrigeration: design, applications and benefitsDanfoss offers a complete portfolio of gas and liquid ejectors that provide significant benefits in CO2 refrigeration applications. Here we take a closer look at these offerings: the Multi Ejector Low Pressure (LP), the Multi Ejector High Pressure (HP), and the Liquid Ejector (LE). All three ejector products are only available as a complete Multi Ejector Solution™ where the ejector is bundled with the AK-PC 782A pack controller to provide the robust system controls necessary for efficient and reliable operation.
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Selecting the right evaporator injection algorithm makes a world of differenceDanfoss has pioneered two control algorithms that help you achieve this balance. The Minimum Stable Superheat (MSS) algorithm has been an important part of the Danfoss ADAP-KOOL® offering for years and is still the ideal choice for adaptive evaporator control for dry expansion. Now Danfoss introduces the next generation: Adaptive Liquid Control (ALC).
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Intelligent and adaptive control in transcritical CO2 refrigerationIntelligent control solutions are important for achieving reliable, optimized operation and realizing financial savings and environmental benefits in your transcritical CO2 refrigeration solution.
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Russia’s first transcritical CO₂ hypermarketIn Voskresensk, Russian retailer Magnit has opened the first hypermarket in Russia using a transcritical booster refrigeration system with carbon dioxide (CO₂) — an eco-friendly and natural refrigerant.
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A case study on ejector efficiency based on four test sitesThe F-gas regulation in Europe and similar legislation in other parts of the world push for low-GWP solutions in food retail refrigeration. CO₂ is proving to be one of the most efficient low-GWP refrigerants thanks to the unique properties of the gas combined with technological discoveries that pave the way for optimum utilization of these properties.
News
Danfoss is proud to declare: “We love CO₂”, and with the Multi Ejector Solution™ you will too
CO2 is often regarded as the "big problem" when it comes to climate change. While in some regards it is a hazard, in other situations it can be the answer. In fact, when used as a refrigerant, CO2 can make a big difference when it comes to keeping people, products, and our planet cool.