An electrical water boiler is used for supplying steam to the process in a food industry. The rating of the boiler is 30kW. It is proposed to replace this boiler with a new energy efficient boiler. The new boiler costs $125,000. The new boiler can save 30% energy at 60% loading when compared with the old boiler. The erection and commissioning cost of the new boiler is $20,000. The resale value of the old boiler is $10,000. The maintenance contract for the new boiler is $8000. The boiler operates for 6000 hours in a year. The cost of electricity is $4 per kWh. Calculate the payback period.

An electrical water boiler is used for supplying steam to the process in a food industry. The rating of the boiler is 30kW. It is proposed to replace this boiler with a new energy efficient boiler. The new boiler costs $125,000. The new boiler can save 30% energy at 60% loading when compared with the old boiler. The erection and commissioning cost of the new boiler is $20,000. The resale value of the old boiler is $10,000. The maintenance contract for the new boiler is $8000. The boiler operates for 6000 hours in a year. The cost of electricity is $4 per kWh. Calculate the payback period.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter26: Three-phase Circuits

Section: Chapter Questions

Problem 3PA: You are an electrician working in an industrial plant. A 30-hp three-phase induction motor has a...

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