Determine the heating and cooling loads for the building described below. Neatly and clearly show all work, calculations and assumptions (partial credit will be given for work shown and calculations). All information should be used from and found in the Appendices of your book. If there is more than one choice for values please identify your assumptions and choice chosen for proper credit. This is an open book and note exam. The building is a 45,000 sf public library located in Atlanta, Georgia. The building is 225 ft x 200 ft x 14 ft Hand faces south (south wall is 225 ft). There are 7' x 7' glass double doors at the entrance and two 3.5' x 7' steel doors on the rear wall. The south wall has 8 windows 6' H x 12'W. The east and west walls each have 12 windows 4' H x 12'W. Roof: Slate shingles Walls: Harboard Siding 0.67 V" Vapor Felt membrane 0.013 "Vapor Felt membrane %" plywood %" plywood 0.93 6" mineral fiber batt insulation 2" air gap %" gypsum board 6" wood stud (southern pine) 6" mineral fiber batt insulation 19 " gypsum board 0.45 (For DETD use M Frame Walls and Doors) 60 Glass: Double Pane Low E w/ Aluminum Frame w/ no thermal break, no shading (For DCLF use heat absorbing double glass) Infiltration: Assume winter 0.46 ACH (ACH X Volume of Building)/ 60 minutes - CFM Assume summer 0.34 ACH (For infiltration use Cintu = volumeinfix 1.08 x AT) Use quent=Volume Ventilation Air (cfm) x 1.08 x AT Ventilation: Lighting: Equipment: LED Lighting 0.8 W/sf (Ballast factor 1.1) 25 computers (500 W each) 4 printers (1000 W each) Determine the heating and cooling loads for the building described below. Neatly and clearly show all work, calculations and assumptions (partial credit will be given for work shown and calculations). All information should be used from and found in the Appendices of your book. If there is more than one choice for values please identify your assumptions and choice chosen for proper credit. This is an open book and note exam. The building is a 45,000 sf public library located in Atlanta, Georgia. The building is 225 ft x 200 ft x 14 ft Hand faces south (south wall is 225 ft). There are 7' x 7' glass double doors at the entrance and two 3.5' x 7' steel doors on the rear wall. The south wall has 8 windows 6' H x 12'W. The east and west walls each have 12 windows 4' H x 12'W. Roof: Slate shingles Walls: Harboard Siding 0.67 V" Vapor Felt membrane 0.013 "Vapor Felt membrane %" plywood %" plywood 0.93 6" mineral fiber batt insulation 2" air gap %" gypsum board 6" wood stud (southern pine) 6" mineral fiber batt insulation 19 " gypsum board 0.45 (For DETD use M Frame Walls and Doors) 60 Glass: Double Pane Low E w/ Aluminum Frame w/ no thermal break, no shading (For DCLF use heat absorbing double glass) Infiltration: Assume winter 0.46 ACH (ACH X Volume of Building)/ 60 minutes - CFM Assume summer 0.34 ACH (For infiltration use Cintu = volumeinfix 1.08 x AT) Use quent=Volume Ventilation Air (cfm) x 1.08 x AT Ventilation: Lighting: Equipment: LED Lighting 0.8 W/sf (Ballast factor 1.1) 25 computers (500 W each) 4 printers (1000 W each)
