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You are contemplating driving an underground airway at a cost of $1,750,000. The airway will be used to deliver 120 m3/s of fresh air to mine workings at a pressure drop of 780 Pa and the fan efficiency is expected to be 78%. Assuming a life of 7 years, an annual interest rate of 8.5% and a cost of electrical power of $0.12 per kWh, calculate The annual equivalent cost of owning the airway. The annual equivalent cost of ventilating the airway 24 hours per day, 365 days per year. please type your answer, please do not write on the paper and post it

You are contemplating driving an underground airway at a cost of $1,750,000. The airway will be used to deliver 120 m3/s of fresh air to mine workings at a pressure drop of 780 Pa and the fan efficiency is expected to be 78%. Assuming a life of 7 years, an annual interest rate of 8.5% and a cost of electrical power of $0.12 per kWh, calculate The annual equivalent cost of owning the airway. The annual equivalent cost of ventilating the airway 24 hours per day, 365 days per year. please type your answer, please do not write on the paper and post it

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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You are contemplating driving an underground airway at a cost of $1,750,00O. The airway will be used to deliver 120 m3/s of fresh air to mine workings at a pressure drop of 780 Pa and the fan efficiency is expected to be 78%. Assuming a life of 7 years, an annual interest rate of 8.5% and a cost of electrical power of $0.12 per kWh, calculate a. The annual equivalent cost of owning the airway. a. The annual equivalent cost of ventilating the airway 24 hours per day, 365 days per year. please type your answer, please do not write on the paper and post it
Transcribed Image Text:You are contemplating driving an underground airway at a cost of $1,750,00O. The airway will be used to deliver 120 m3/s of fresh air to mine workings at a pressure drop of 780 Pa and the fan efficiency is expected to be 78%. Assuming a life of 7 years, an annual interest rate of 8.5% and a cost of electrical power of $0.12 per kWh, calculate a. The annual equivalent cost of owning the airway. a. The annual equivalent cost of ventilating the airway 24 hours per day, 365 days per year. please type your answer, please do not write on the paper and post it
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