Indian Railways has 2000 HP coal burning units(locomotive wagon) with their efficiency as 20%. Calorific value of coal is 30,000 KJ/Kg. Find mass of coal required per hp-sec?
A. 0.2486kg/s
B. 0.1110kg/s
C. 0.3568kg/s
D. 0.2254kg/s
Answer:A
Indian Railways has 2000 HP coal burning units(locomotive wagon) with their efficiency as 20%. Calorific value of coal is 30,000 KJ/Kg. Find mass of coal required per hp-sec?
A. 0.2486kg/s B. 0.1110kg/s C. 0.3568kg/s D. 0.2254kg/s
Explanation: Efficiency= work/heat supplied. Work is 2000 hp and heat supplied is mass flow rate * calorific value.