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Which type of furnace cannot be used in the modern era plants?

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in Energy Engineering by (91.0k points)
Which type of furnace cannot be used in the modern era plants?

(a) Hand fired furnace

(b) Electric arc furnace

(c) Solar furnace

(d) Central warm air furnace

I got this question in a national level competition.

My query is from Fuel Burning in division Steam Power Plant of Energy Engineering

1 Answer

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Best answer
Correct choice is (a) Hand fired furnace

Explanation: A hand fired furnace is simple in design, but it cannot be used in modern power plants because of its lower combustion efficiency. It does not respond quickly to fluctuating loads and control of draught is very difficult.

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