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11. | "Shut off the electric power supply to heater, close cold water inlet, open a hot water faucet to allow |
| 首先关闭电源开关,关闭冷水进口阀门,打开热水水龙头让空气进入管道系统,并且打开排水阀。 |
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12. | "When necessary to completely drain the heater, shut off the electric power supply to heater, close cold |
| 如果需要把热水器的水全部排干,应该首先关闭电源开关,关闭冷水进口阀门,打开热水水龙头让空气进入管道系统,并且打开排水阀。排水阀上有螺纹,可连接标准软管。 |
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13. | Parameters of tube row number, fin pitch, fin type, inlet cold water temperature and frontal velocity |
| 实验中,固定冰水进口温度及流量,改变空气的正向风速;或固定正向风速时,改变冰水的进口温度,分别来探讨热传量、热量、热量、热比及除湿率的变化。 |
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