Question

A press tool of mass 8 kg and specific heat

capacity 0.5 kJ/(kgC) is to be heated from 15C

to 900C in a hardening process. To initiate the

necessary temperature rise, the furnace uses

0.50 kg of gas with a calorific value of 20

MJ/kg. Calculate the thermal efficiency of the

furnace​

Answer 1

Answer:

necessary temperature rise, the furnace uses 0.50 kg of gas with a calorific value of 20. MJ/kg. Calculate the ... kJ/(kgC) is to be heated from 15Cto 900C in a

Explanation:

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