choose the correct answer
1.liquids used in solar water heaters are?
(a)water
(b)kerosene
(c)petrol
(d)all of the above
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The following are some of the most commonly used heat-transfer fluids and their properties.
...
Types of Heat-Transfer Fluids
- Air. Air will not freeze or boil, and is non-corrosive. ...
- Water. ...
- Glycol/water mixtures. ...
- Hydrocarbon oils. ...
- Refrigerants/phase change fluids. ...
- Silicones.
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