Saturday, 23/11/2024 | 10:16 GMT+7
Energy audit result of Formosa Ha Tinh Steel Corporation
19/09/2019
| Solution No.1: Using Water Level Control for Pump 81P002A/B | |
Real situation Pump continuously operates in low load state. In order to adjust the level of the tank by 50%, it is necessary to control the valve opening mode. The actual flow rate of pump is smaller than the designed one, leading to waste of electricity. | Expected output When the tank reaches 80%, the pump will turn on automatically. When the tank level reaches 20%, the pump will turn off automatically. It will reduce electricity loss. |
| Energy efficiency results | |
| Electricity savings: 10,264 kWh/year | Investment cost: No requirement |
| Cost savings: $718/ year | Payback period: - |
| Solution No.2: Using Smaller Impellers to Match the Demand for Cooling Water Pumps | |
Real situation The actual cooling flow rate is lower than the designed flow rate. During the pump's operation, the flow rate is always adjusted by setting the valve opening ratio by 50% leading to electricity waste. | Expected output The use of the smaller impeller which is appropriate to the actual flow rate and the fully open valve can reduce electricity use. |
| Energy efficiency results | |
| Electricity savings: 849,000 kWh/year | Investment cost: $12,330 |
| Cost savings: $58,430 /year | Payback period: 0.2 year |
| Solution No.3: Move the air compressor inlet to the outside to reduce the inlet air temperature at the rolling mill | |
Real situation The air compressor operates making the temperature of the room higher than that of the outside. High temperature of the inlet air leads to high energy consumption of the air compressor. | Expected output Move the air compressor inlet to the outside can reduce the inlet air temperature and energy consumption of the air compressor. |
| Energy efficiency results | |
| Energy savings: 5,413,329 kWh//year | Investment cost: USD90,000 |
| Cost savings: USD28,993/year | Payback period: 3.1 years |
| Formosa Ha Tinh Steel Corporation is one of 10 enterprises entitled to energy audit implementation within the framework of the Project for Promoting Investment Market for Energy Efficiency in Industrial Sector in Vietnam, funded by the Korean Government through Korean International Cooperation Agency (KOICA). The energy audit was conducted from December 3, 2018 to December 28, 2018 by the Energy Conservation Research and Development Center (ENERTEAM) in cooperation with Korean energy experts. |
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Energy audit result of Formosa Ha Tinh Steel Corporation
