Annual energy saving-annual saving

Reference no: EM13256197

A 60 HP standard ac motor is operated for 85% time in a year at 75% load with efficiency and power factor as 82% and 0.8, respectively. Standard ac motor is replaced by an energy efficient motor of same capacity. At 75% load, the efficiency and power factor of energy efficient motor are 88% and 0.9, respectively. Costs of standard ac motor and energy efficient motor are Rs. 1,10,000/- and Rs. 1,50,000/-, respectively. Taking energy consumption charge as Rs. 4/- per unit and kVA demand charge as Rs. 300/- per kVA per month, calculate the following:

(i). Annual energy saving,

(ii). Annual saving,

(iii). Payback period.

Reference no: EM13256197

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