First Affiliated Hospital of School of Medicine of Zhejiang University
The objects of technology improvement are three independent central air-conditioning water systems of the 1# outpatient building, 2# medical technology building and 3# ward building. The air-conditioning area of the 1# outpatient building is 20,000m2. The air-conditioning area of the 2# medical technology building is 30,000m2. The air-conditioning area of the 3# ward building is 3,500m2. After system optimization and adjustment, ten high-efficiency pumps are used. According to the acceptance results, 502,000KWH power can be saved annually.
| System Name | Power Consumption before Technology Improvement (kW) | Power Consumption after Technology Improvement (kW) | Power Saving Rate |
| Refrigerant pump | Cooling pump | Refrigerant pump | Cooling pump |
| Outpatient building system | 2×36.23 | 2×45.83 | 2×15.6 | 2×19 | 57.7% |
| Medical technology building system | 2×45.32 | 2×43.22 | 2×27.85 | 2×22.47 | 43.2% |
| Ward building system | 1×15 | 1×16.7 | 1×5.09 | 1×6.95 | 62.2% |