BP27 - Replace chiller use piston by screw
| Address: District 1, Ho Chi Minh City | |
| Project Summary: Replacement of Chillers using a reciprocating compressor with Chillers using high efficiency screw compressor. | |
| Year of implementation: 2016 | |
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Status before implementation The hotel and office building area's refrigeration system used 5 Chillers with reciprocating compressors. Each Chiller has a capacity of 244 kW. The refrigerant is R22, the heat transfer fluid is water. However, due to long operating time, some Chillers’ compressors have failed. 1 Chiller has been ceased its operation due to the lack of spare parts.
Chiller No. 3 and Chiller No. 5 of centralized air conditioning system in the hotel Refrigeration compressors worked with relatively low efficiency (COP of 2.7 to 3). The daily power consumption of the air conditioning system was 9,855 kWh. |
Result The hotel has replaced the Chiller system using reciprocating compressor with the Chiller using high efficiency screw compressor. The daily electricity consumption of the air conditioning system after renovation is 3,156 kWh. Pictures of 3 new screw compressors of chiller The COP of the new chiller system is quite high (from 6 to 6.2).
New chiller performance parameters |
|
Status before implementation The hotel and office building area's refrigeration system used 5 Chillers with reciprocating compressors. Each Chiller has a capacity of 244 kW. The refrigerant is R22, the heat transfer fluid is water. However, due to long operating time, some Chillers’ compressors have failed. 1 Chiller has been ceased its operation due to the lack of spare parts.
Chiller No. 3 and Chiller No. 5 of centralized air conditioning system in the hotel Refrigeration compressors worked with relatively low efficiency (COP of 2.7 to 3). The daily power consumption of the air conditioning system was 9,855 kWh. |
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Result The hotel has replaced the Chiller system using reciprocating compressor with the Chiller using high efficiency screw compressor. The daily electricity consumption of the air conditioning system after renovation is 3,156 kWh. Pictures of 3 new screw compressors of chiller The COP of the new chiller system is quite high (from 6 to 6.2).
New chiller performance parameters |
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| Result of the project: | |
| Total investment costs: | VND 15,000 Million |
| Power saving: | 2,445,027 kWh/ year |
| Cost savings: | VND 6,661 Million |
| Payback time: | 2.3 years |
