5.1 For the existing system, what is the electrical input power drawn for the four high-demand months (power of 100kW delivered to the air) and the eight low-demand months (power of 25kW delivered to the air)? Show your calculations and round off to 1 decimal place.

Start writing here:

5.2 For the proposed new system of installing a smaller fan for low-demand months (instead of using a VSD), what is the electrical input power drawn for the four high-demand months, and the eight low-demand months? Show your calculations.

Start writing here:

5.3 If you install the new system, what would the monthly electricity cost savings be for the low-demand and high-demand months? Assume that there are 30 days in a month and that the fan system runs for 24 hours a day. Show your calculations and be sure to use your figures from the previous questions.