BP7 - Improve refrigeration

Company name: MINH DANG Co., Ltd
Address: 83 Provincial Road 8, My Xuyen Town, My Xuyen District, Soc Trang Province
Project Summary: An investment project in improving the refrigeration system with many solutions. The project goal is to reduce the energy costs and emission of greenhouse gases.
Year of implementation: 2018

Status before implementation

The refrigeration system is the largest energy consuming system in the factory. Currently, the factory has 3 refrigeration systems operating independently, using NH3 refrigerant.

Compressor room of the factory

The plant would merge the three existing separate refrigeration systems into a new one.

At the same time, the plant also installed a lot of new equipment to enhance the energy efficiency of the refrigeration system such as: installation of a water & non-condensing air separator from NH3, installation of a water chiller and heat exchanger to reduce the amount of flake ice in use, installation of a device that automatically controls the compressor capacity to suit the cold load of the system.

Result

The total electricity consumed has reduced by 28.3% thanks to  the improved refrigeration system.

Refrigeration system after improvement

Water separator

Status before implementation

The refrigeration system is the largest energy consuming system in the factory. Currently, the factory has 3 refrigeration systems operating independently, using NH3 refrigerant.

Compressor room of the factory

The plant would merge the three existing separate refrigeration systems into a new one.

At the same time, the plant also installed a lot of new equipment to enhance the energy efficiency of the refrigeration system such as: installation of a water & non-condensing air separator from NH3, installation of a water chiller and heat exchanger to reduce the amount of flake ice in use, installation of a device that automatically controls the compressor capacity to suit the cold load of the system.

Result

The total electricity consumed has reduced by 28.3% thanks to  the improved refrigeration system.

Refrigeration system after improvement

Water separator

Result of the project:
Total investment costs: VND 5,573 Million
Power saving: 959,385 kWh/ year
Cost savings: VND 1,588 Million
Payback time: 3.5 years