Research Article
Planning and Design of Low-Power-Consuming Full-Outer-Air-Intake Natural Air-Conditioning System
Table 2
Comparison table of the building energy conversion system and traditional total heat exchanger system.
| Item | This subjected system | Total heat exchanger | Rotary wheel | Polymer fixed plate |
| Energy conversion method | Air and water | Air | Air | Fan power | Variable air volume | Constant air volume | Constant air volume | Equipment power | Fan and pump | Wheel motor and fan | Fan | Separation of intake/exhaust air | Entirely separated | Mixed up | Separated by highly permeable fibers | Air cross-contamination | No | Yes | Yes | Positive/negative environment | Yes | No | No | Sensible energy conversion efficiency | 71%∼112% | 65%∼78% | 65%∼78% | EER | 24.87∼13.69 kcal/W·h | N/A | 5.43∼0.07 kcal/W·h |
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N/A: unable to measure EER because the wheel-type total heat exchanger does not provide a similar model.
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