Sunday, May 20, 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

Production of cold water

In the Vietnamese seafood industry, a lot of ice is used to produce chilled water, where icesimply is mixed with water. This is a very inefficient way of producing chilled water, and a lot of excess energy is used because of this method.

In the Vietnamese seafood industry, a lot of ice is used to produce chilled water, where icesimply is mixed with water. This is a very inefficient way of producing chilled water, and a lot of excess energy is used because of this method. 

Instead of using ice, the water should be cooled directly in a designated chiller installed with that purpose only. If there is large variation in consumption, a buffer vessel can be installed. 

Energy saving potential:

If a new chiller is installed to produce cold water, or one of the existing ones is rebuilt, the energy saving would at least be 40% of the electricity used by the compressor.

At an average shrimp processing factory the use of chilled water per ton of product is 20-22 m3 .

Diagnosis of situation:

The potential can easily be identified by observing how chilled water is produced. If ice is used, there is a large potential for energy savings. The specific saving potential must be calculated from the amount of used chilled water and the operating conditions of the ice machine.

Payback time:

This measure will most likely require a new chiller, but the payback time will still be medium. A water chiller is a standard product available from many different manufactures. If an existing compressor can be utilized, payback time might be shorter.

How to proceed:

After it is determined that there is a potential, the next step is to find the specific potential. This information shall be used to find a new chiller in cooperation with a supplier. Contact a supplier that can deliver the complete system to ensure reliable operation.