Maximum viscosity of tar/PCM/fuel oil for easy and efficient atomisation in conventional burner is _______________ centistokes (or 100 Redwood I seconds) ?
Correct answer: B. 25
- A. 5
- B. 25
- C. 50
- D. 100
Explanation
Conventional burners can atomise fuel efficiently up to about 25 centistokes, equivalent to roughly 100 Redwood I seconds. Higher viscosity produces larger droplets and poorer mixing, so preheating may then be needed.
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