A plant owner is considering replacing each of the metal halide lamps in his facility with...

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Electrical Engineering

A plant owner is considering replacing each of the metal halidelamps in his facility with a 6-lamp T8 fixture. The plant has atotal of 31 fixtures. Determine the annual energy savings for theproposed lighting upgrade (in kWh). Information about each lighttype is given below:
Metal Halides Each lamp is rated at 400 W with a ballast factorof 1.17. Lamp intensity is 22,000 lumens. Lamp lifetime is 20,000hours. The cost of a replacement lamp is $14, and the time requiredto replace a bulb is 27 minutes. The cost of the fixture is$26.
T8 Fluorescent Each lamp is rated at 32 W with a ballast factorof 0.91. Lamp intensity is 3,000 lumens. Lamp lifetime is 30,000hours. The cost of a replacement lamp is $2, and the time requiredto replace a bulb is 19 minutes. The cost of the fixture is$22.
Plant Information The plant operates for 7,967 hours per year.The labor rate is $15. The time required to retrofit an entirefixture is 38 minutes

Answer & Explanation Solved by verified expert

3.7 Ratings (550 Votes)

HI The question is to calculate just the annual energy savings in kWh So we need to determine the number of KWs that are being saved by upgradation and then to multiply it with the number of hours per year that they are operating to get kWh savings TO See Answer

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