ilaige in the energy of the 16.A university campus has 200 classrooms and 400 fa
ID: 776742 • Letter: I
Question
ilaige in the energy of the 16.A university campus has 200 classrooms and 400 faculty offices. The c tubes, each consuming 110 W, including the electricity used by the ballasts. The faculty offices, as many tubes. The campus is open 240 days a year. The classrooms on average, have half tubes and faculty offices are not occupied an average of 4 electricity is $0.11/kWh, determine how much the campus will save a year if the lights i faculty offices are turned off during unoccupied periods. h a day, but the lights are kept on. If the unit cost of 17.What is a blackbody? How do real bodies differ from a blackbody? 18. List the forms of energy that contribute to the internal energy of a system. 19.Define emissivity and absorptivity. What is Kirchhoff's law of radiation? 20.The inner and outer surfaces of a 5-mx 6-m brick wall of thickness 30 cm and thermal conductivity 0.69 W/m C are maintained at temperatures of 20°C and 5°C, respectively. Determine the rate of heat transfer through the wall, in W. (Figure 5) 21.Two surfaces of a 2-cm-thick plate are maintained at 0°C and 100°C, respectively. If it is determined that heat is transferred through the plate at a rate of 500 W /m2, determine its thermal conductivity 22.A thin metal plate is insulated on the back and exposed to solar radiation on the front surface. The exposed surface of the plate has an absorptivity of 0.8 for solar radiation. If solar radiation is incident on theExplanation / Answer
ANSWER 16:
Total number of tubes in classrooms = 200 x 12 = 2400
Total number of tubes in faculty offices = 400 x 6 = 2400
Total tubes = 2400 + 2400 = 4800
Total power consuption = 4800 x 110 = 528000 W = 528 kW.
The total number of hours the tubes can be switch off in a year = 240 x 4 = 960 hrs.
Total power saving = 528 x 960 = 506880 kWh
Total savings = 506880 x .11 = 55756.8 dollars.
NOTE: Please repost the question specifying the question to be solved to get other answers (Preferably one at a time).
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.