Research Article
Solar Thermal System Evaluation in China
Table 4
Operating efficiency of a heating resource using conventional energy.
| Conventional
energy | Domestic
water | Space
heating | Thermal driven
cooling |
| | Electricity | 0.31 | / | / | | Coal | / | 0.70 | 0.70 | | Natural gas | 0.84 | 0.80 | 0.80 |
|
|
