ULTRA-LOW SUPERHEAT MODULE
The Ultra-Low Superheat Module allows the evaporators to run with very low superheat setting without having the risk of liquid CO2 returning to the compressors. Typically, the evaporation temperature can be increased by around 4-5 Kelvin, which will give you energy savings around 10%.
This technology will give you the most energy efficient solution on the market.
Benefits
> Increasing evaporation temperature by 4-5 Kelvin
resulting in up to 10% energy savings
> Combined with ejector additional 5% savings
> Payback time 2 years
> Separate module for flexible placement
> Additional 7-8% capacity
> Less defrost of cabinets
> Safe solution as no liquid is returned to the compressors
30% energy savings for Carrefour
Specifications
CuBig 2+1x3 with parallel compression and Ultra-Low Superheat Module with combined ejectors
> 140 kW at -8°C
> 30 kW at -36°C
> Ambient temperature up to 42°C during summer
Results
> 30% energy savings measured by Carrefour
> 75% less defrost
> -1.4°C evaporation on average instead of -9°C
> COP 4.65
(compared to 3.75 with booster solution, 3.98 with booster and parallel compression, 4.18 with parallel compression and high pressure ejectors)
ENERGY SAVINGS
Depending on selected technology and the geographical location, you can obtain different energy savings.
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*Ultra-Low Superheat is estimated to increase MT evaporation temperature by 4 K (however several cases show up to 7 K improvement)
ENERGY SAVINGS - UP TO 30%
PAYBACK TIME - 2 YEARS
FLEXIBLE PLACEMENT - PLACED SEPARATELY OR ATTACHED TO RACK
About the ULS Module
The Ultra-Low Superheat Module is being used to run the evaporators with the highest evaporation temperature possible, without running them completely flooded.
How does it work
The Ultra-Low Superheat (ULS) Module is being used to run the evaporators with the highest evaporation temperature possible, without running them completely flooded.
The module consists of a suction accumulator, internal heat exchanger and optional ejector.
The suction accumulator is used to capture any liquid coming back from the evaporators and to separate gas from the liquid.
The primary function of the internal heat exchanger is to evaporate and superheat the gas, and liquid CO2 coming from the suction accumulator. The secondary function is to subcool the liquid line, resulting in less mass flow in the complete installation and reducing pressure drop.
The ejector is used to empty the suction accumulator of liquid, and if using a gas ejector, also to move flash-gas from MT compressors to parallel compressors.
If you do not have an ejector, the remaining liquid is evaporated in the internal heat exchanger.
- specifications
- Available for racks above 100 kW
- Danfoss or Eckelmann controller
- Can only be ordered with a rack
- Fully factory tested
Length: 1200 mm - Width: 800 mm
- Height: 1943 mm
- Applications
- Parallel systems:
Optional combi-ejector
Booster and MT only systems:
Optional liquid ejector
LT only systems:
No optional ejector
- Installation
- Mounted on the rack from factory or delivered as separate module.
- Commissioning by Advansor is required for first-time installations