Eskom spend R62996 per day when purchasing the coals at Medupi power station. The cost of coal is R500 per tonne having a calorific value of 5618 kcal/kg. The thermal and electrical efficiency of the power station are 28% and 80%, respectively. (Assume that 1 kWh=861kcal) 1. Determine the overall efficiency of the power station (%) 2. Determine the amount of coal consumed per day (tonnes) 3. Determine the total electrical energy produced by a 10 kg of coal (kWh)
Eskom spend R62996 per day when purchasing the coals at Medupi power station. The cost of coal is R500 per tonne having a calorific value of 5618 kcal/kg. The thermal and electrical efficiency of the power station are 28% and 80%, respectively. (Assume that 1 kWh=861kcal) 1. Determine the overall efficiency of the power station (%) 2. Determine the amount of coal consumed per day (tonnes) 3. Determine the total electrical energy produced by a 10 kg of coal (kWh)
Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Eskom spend R62996 per day when purchasing the coals at Medupi power station. The
cost of coal is R500 per tonne having a calorific value of 5618 kcal/kg. The thermal and
electrical efficiency of the power station are 28% and 80%, respectively.
(Assume that 1 kWh=861kcal)
1. Determine the overall efficiency of the power station (%)
2. Determine the amount of coal consumed per day (tonnes)
3. Determine the total electrical energy produced by a 10 kg of coal (kWh)
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