Saturday, September 22, 2018
  • Green Investment Facility is offered to SMEs in three industrial sectors: the food industry, the brick industry and the ceramics industry

  • GIF applies to loans between 400 million to 4 billion VN

  • 50% bank guarantee for bank loan in energy investments

  • Fund 110 billion VND from Denmark

  • #GIF can be applied for projects with a minimum energy savings potential of 20%

  • The SME will be awarded a rebate on the loan of up to 30% if achieved 50% on energy savings

  • The SME will be awarded a rebate on the loan of up to 30% if achieved 50% on energy savings

Floating condensation

In an energy optimal solution, the condensation temperature varies according to the outside temperature instead of being constant over day/week/year. The condensation temperature is of major importance for the electrical consumption in the refrigeration plant.

In an energy optimal solution, the condensation temperature varies according to the outside temperature instead of being constant over day/week/year. The condensation temperature is of major importance for the electrical consumption in the refrigeration plant.

When the outside temperature is low, the condensation temperature should be low as well. This can save large amounts of energy, and be implemented by regulation measures.

In general, 3 % of the electrical consumption of a refrigeration plant can be saved for each degree the condensation temperature is lowered.

Energy saving potential:

The energy saving potential for this measure will be between 10 – 20% depending on the workload on the facility and how much ambient conditions vary. Equipment operating continuously has a larger potential than equipment operating only in work or peak hours.

Diagnosis of situation:

Normally, the operating personnel knows if the condensation temperature varies. If not, look through the data logs (if available) and see if the condensation temperature is fluctuating over day/week/year (or read the temperature / pressure on the pressure side of the compressor on a cool day). 

All refrigeration plants in the seafood industry without floating condensation pressure have an energy saving potential.

Payback time:

For a standard refrigeration plant, the payback time will be low. If the project is executed in the same time as other projects, the investment can be lowered significantly and should be considered as a design standard.

How to proceed:

After detecting if there are a potential, the next step is to assess how big it is. If there are detailed data logs from the refrigeration plant, it can be calculated from this, otherwise there must be assumed some general workloads for the refrigeration plant. If you are skilled with thermodynamic calculations, you can do it yourself; otherwise an expert must do it. Next step is to contact a specialist or supplier.