1. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option

2. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option ⩥6 building; campus style high school ⩥Located in Glen Burnie, MD ⩥Construction of first building started in 1934 ⩥Junior High School absorbed by campus in 1955 ⩥Latest building added in 1976 Glen Burnie High School Crest School Background I.Introduction II.Existing Mechanical System III.Proposed System Alterations IV.CM Breadth V.Conclusion VI.Acknowledgements

3. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option ⩥Building A: Media Building ⩥Building B: Industrial Arts Building ⩥Building C: Administration Building ⩥Building D: Old Main ⩥Building F: Business Building/ Secondary Gymnasium Glen Burnie High School Campus Building Breakdown E B C D F A

4. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option ⩥Building A: Media Building ⩥Building B: Industrial Arts Building ⩥Building C: Administration Building ⩥Building D: Old Main ⩥Building F: Business Building/ Secondary Gymnasium Glen Burnie High School Campus Building Breakdown E B C D F A Building A

5. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option ⩥Building A: Media Building ⩥Building B: Industrial Arts Building ⩥Building C: Administration Building ⩥Building D: Old Main ⩥Building F: Business Building/ Secondary Gymnasium Glen Burnie High School Campus Building Breakdown E B C A D F Building B

6. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option ⩥Building A: Media Building ⩥Building B: Industrial Arts Building ⩥Building C: Administration Building ⩥Building D: Old Main ⩥Building F: Business Building/ Secondary Gymnasium Glen Burnie High School Campus Building Breakdown E B C A D F Building C

7. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option ⩥Building A: Media Building ⩥Building B: Industrial Arts Building ⩥Building C: Administration Building ⩥Building D: Old Main ⩥Building F: Business Building/ Secondary Gymnasium Glen Burnie High School Campus Building Breakdown E B C A D F Building D

8. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option ⩥Building A: Media Building ⩥Building B: Industrial Arts Building ⩥Building C: Administration Building ⩥Building D: Old Main ⩥Building F: Business Building/ Secondary Gymnasium Glen Burnie High School Campus Building Breakdown E B C A D F Building F

9. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Glen Burnie High School Campus Building Specifications E B C A D F Building E ⩥Building E is the Physical Education Building ⩥Houses the primary gymnasium, locker rooms, team rooms, wrestling room, weight room & gymnastics area ⩥Approximately 26,500 S.F.

10. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Building E Ground Floor Building Specifications Locker Rooms Building E ⩥Building E is the Physical Education Building ⩥Houses the primary gymnasium, locker rooms, team rooms, wrestling room, weight room & gymnastics area ⩥Approximately 26,500 S.F. Mechanical Rooms

11. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Building E Ground Floor Building Specifications Team Rooms Building E ⩥Building E is the Physical Education Building ⩥Houses the primary gymnasium, locker rooms, team rooms, wrestling room, weight room & gymnastics area ⩥Approximately 26,500 S.F. Mechanical Rooms

12. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Building Specifications Building E Ground Floor Weight Training Building E ⩥Building E is the Physical Education Building ⩥Houses the primary gymnasium, locker rooms, team rooms, wrestling room, weight room & gymnastics area ⩥Approximately 26,500 S.F. Mechanical Rooms

13. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Building E First Floor Building Specifications Gymnasium Building E ⩥Building E is the Physical Education Building ⩥Houses the primary gymnasium, locker rooms, team rooms, wrestling room, weight room & gymnastics area ⩥Approximately 26,500 S.F. Mechanical Rooms

14. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Building E First Floor Building Specifications GymnasticsArea Building E ⩥Building E is the Physical Education Building ⩥Houses the primary gymnasium, locker rooms, team rooms, wrestling room, weight room & gymnastics area ⩥Approximately 26,500 S.F. Mechanical Rooms

15. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Building E Second Floor Building Specifications Wrestling Area Building E ⩥Building E is the Physical Education Building ⩥Houses the primary gymnasium, locker rooms, team rooms, wrestling room, weight room & gymnastics area ⩥Approximately 26,500 S.F. Mechanical Rooms

16. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Building E Second Floor Building Specifications Upper Part of Gymnasium Building E ⩥Building E is the Physical Education Building ⩥Houses the primary gymnasium, locker rooms, team rooms, wrestling room, weight room & gymnastics area ⩥Approximately 26,500 S.F. Mechanical Rooms

17. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Building E Second Floor Building Specifications Upper Part ofGymnasticsArea Building E ⩥Building E is the Physical Education Building ⩥Houses the primary gymnasium, locker rooms, team rooms, wrestling room, weight room & gymnastics area ⩥Approximately 26,500 S.F. Mechanical Rooms

18. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Project Specifications Building OccupantAnne Arundel County Public Schools Occupancy TypeEducation—High School Size110,000 Square Feet Number of Stories3 Project Team Owner: Anne Arundel County Public Schools Architect: JRS Architects Mechanical & Electrical Engineer: JMT Civil & Structural Engineer: Carroll Engineering General Contractor: RWC Contracting Mechanical Contractor: Chilmar Construction DatesMay 2010—August 2011 Renovation Costs$6,000,000 Project DeliveryDesign-Bid-Build Building E Front

19. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Existing Mechanical System ⩥Constant air volume system ⩥9 Steam AHUs serve the building – No Cooling ⩥Gymnastics area served by own steam unit ventilator ⩥Extra heating in gymnasium by finned tube radiation ⩥Auxiliary heating supplied by convectors & CUHs ⩥Steam supplied by boilers in Building F Building E Airflow Rates SystemService Design Airflow (CFM) Outdoor Air (CFM) % OA AHU-1Men’s Lockers2000 100 AHU-2Team Rooms2800 100 AHU-3Women’s Lockers2000 100 AHU-4&5Gymnasium14400600042 AHU-6Laundry Room2500 100 AHU-7Lobby130035026.9 AHU-8Wrestling Room90010011.1 AHU-9Weight Room1300 100 UV-1Gymnastics Area200055027.5 TOTAL292001760060.3 Building E Airflow Rates I.Introduction II.Existing Mechanical System III.Proposed System Alterations IV.CM Breadth V.Conclusion VI.Acknowledgements

20. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Existing Mechanical System - Renovation ⩥Chiller and enclosure added to serve Building E only ⩥Replace AHU’s, unit ventilator, CUHs & convectors ⩥Energy recovery ventilating units added to 3 AHUs ⩥Install new chilled and heating water pipes ⩥Water/Glycol and Steam/Water Heat exchangers added ⩥Pumps added/replaced Ground Floor Mechanical Drawing Building E Load Summary SystemService Cooling (Ton) Heating (MBH) AHU-1Men’s Lockers5.7101 AHU-2Team Rooms16.7203.1 AHU-3Women’s Lockers7.991.6 AHU-4&5Gymnasium84.4696.8 AHU-6Laundry Room514.2 AHU-7Lobby4.280.4 AHU-8Wrestling Room3.572.9 AHU-9Weight Room793.1 UV-1Gymnastics Area6.4164 TOTAL140.81517.1 Building E Load Summary

21. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Ground Source Heat Pump System ⩥Increasingly popular institutional option ⩥Abundance of usable ground on site ⩥Minimize or eliminate mechanical equipment ⩥Reduce energy use of the building ⩥Monetary savings Typical Vertical Ground Source Heat Pump System I.Introduction II.Existing Mechanical System III.Proposed System Alterations IV.CM Breadth V.Conclusion VI.Acknowledgements

22. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Site Ground Analysis Geologic Map of Maryland

23. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Site Ground Analysis ⩥7’ of Patapsco-Fort-Mott-Urban Land Complex soil above quartz sandstone ⩥ASHRAE values for Heavy Sand, 5% Water and Sandstone used ⩥Ground Temperature of 57 o F Geologic Map of Glen Burnie, MD GSHP System Ground Properties TypeMaterial Density (lb/CF) Conductivity (BTU/h-ft- o F) Diffusivity (SF/Day) SoilHeavy Sand, 5% Water1201.2 – 1.91.0 – 1.5 RockSandstone--1.2 – 2.00.7 – 1.2 Grout15% Bennonite/85% SiO 2 Sand--1.0 – 1.1-- GSHP System Ground Properties

24. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Ground Source Heat Pump System ⩥Athletic fields used for bores ⩥23.6 acres = 1,023,016 SF available ⩥Bores placed close to building – Reduce extra piping Glen Burnie High School Site PlanRequired Cooling Bore Length Equation Where: F sc = short circuit heat loss factor L c = required bore length for cooling, ft PLF m = part load factor during design month q a = net annual average heat transfer to ground, Btu/h q lc = building design cooling block load, Btu/h R ga = effective thermal resistance of ground (annual pulse), h-ft-°F/Btu R gd = effective thermal resistance of ground (daily pulse), h-ft-°F/Btu R gm = effective thermal resistance of ground (monthly pulse), h-ft-°F/Btu R p = thermal resistance of pipe and borehole, h-ft-°F/Btu t g = undistributed ground temperature, °F t p = temperature penalty for interference of adjacent bores, °F t wi = liquid temperature at heat pump inlet, °F t wo = liquid temperature at heat pump at outlet, °F W c = power input at design cooling load, Btu/h

25. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Ground Source Heat Pump System ⩥27,246 feet of bores ⩥100 bores at 275 feet deep ⩥10 x 10 grid layout; 20 foot spacing ⩥Reverse return piping GSHP Piping & Bore LayoutTypical Reverse-Return Piping

26. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Ground Source Heat Pump System ⩥System sized for 105 tons ⩥Grid divided into 3 sections, each with own pump ⩥Pumps feature full redundancy ⩥Main header branches into sub-headers for each section ⩥Heat exchanger to cool chilled water GSHP Pumping & Piping Schematic Building E NEW Load Summary SystemService Cooling (Ton) Heating (MBH) AHU-1Men’s Lockers3.761.8 AHU-2Team Rooms13.7160.1 AHU-3Women’s Lockers4.556 AHU-4&5Gymnasium80.1394.9 AHU-6Laundry Room3.212.8 AHU-7Lobby1.728.3 AHU-8Wrestling Room2.732.8 AHU-9Weight Room3.357.3 UV-1Gymnastics Area7.595.1 TOTAL120.4899.7 Building E NEW Load Summary

27. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Ground Source Heat Pump System ⩥Chiller reduced from 155 tons to 20 tons ⩥Chilled water pumps replaced ⩥Cost savings of $71,470 ⩥Heat exchanger added to system for ground loop ⩥8 new pumps added to the system; full redundancy Building E Energy Reduction Cooling (kBTU/yr)Heating (kBTU/yr) BeforeAfterBeforeAfter 174,21047,1631,056,069644,483 Building E Energy Reduction GSHP System Pump Schedule DesignationModel Flow Rate (GPM) Total Head (FT H 2 O) RPM GWP-1Bell & Gossett Series 1531126801750 GWP-2Bell & Gossett Series 153194.5701750 GWP-3Bell & Gossett Series 153194.5751750 CHWP-1Bell & Gossett Series 1531360651750 New Pump & Chiller Schedules GSHP System New Chiller Desig.Model Capacity (Tons) EERAmbient Temp.EWTELTElec. CH-1Trane CGAM 2018.99.995 o F50 o F40 o F460/3

28. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option CM Breadth ⩥Analyze schedule changes associated with alterations ⩥Determine potential monetary savings or added costs ⩥Calculate system payback periods I.Introduction II.Existing Mechanical System III.Proposed System Alterations IV.CM Breadth I.Conclusion II.Acknowledgements

29. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Schedule Building E Renovation Schedule ⩥Changes to the schedule duration are minimal ⩥No interference by GSHP earthwork ⩥Window renovation long, but has no foreseen effects ⩥Chiller installation takes place of previous chiller ⩥Large time window for mechanical room installations GSHP System Schedule Variables ComponentTimeAmountTotal Bores1,000 L.F./Day27,246 L.F.28 Days Piping1,000 L.F./Day27,246 L.F.28 Days Grout1,000 L.F./Day27,246 L.F.28 Days Pumps1.5 Units/Day8 Units6 Days Heat Exchanger1 Unit/Day1 Unit1 Day System Alteration Schedule Variables Window Renovation Schedule Variables ComponentTimeAmountTotal Demo Existing Windows200 S.F./Day2,200 S.F.12 Days Install New Windows90 S.F./Day2,572.5 S.F.29 Days

30. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Cost ⩥Original renovation cost of $6,000,000 ⩥GSHP cost of $51,273 ⩥Removed equipment savings included in GSHP ⩥Window renovation cost of $50,846 ⩥New Total Cost = $6,102,119 GSHP System Cost ComponentCost ($) Bores47,408 Piping37,950 Grout5,995 Pumps38,390 Heat Exchanger3,000 Removed Equipment Cost Savings-71,470 TOTAL51,273 System Alteration Cost Schedules Window Renovation Cost ComponentCost ($) Demo Existing Windows2,354 Install New Windows48,492 TOTAL50,846

31. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Simple Payback Analysis - GSHP ⩥Total Cost = $51,273 ⩥Savings = $3,012.36 ⩥Simple Payback = 17.1 Years GSHP System Cost ComponentCost ($) Bores47,408 Piping37,950 Grout5,995 Pumps38,390 Heat Exchanger3,000 Removed Equipment Cost Savings-71,470 TOTAL51,273 System Alteration Cost Schedules Window Renovation Cost ComponentCost ($) Demo Existing Windows2,354 Install New Windows48,492 TOTAL50,846

32. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Simple Payback Analysis – Windows ⩥Total Cost = $50,846 ⩥Savings = $5,261.35 ⩥Simple Payback = 9.7 Years GSHP System Cost ComponentCost ($) Bores47,408 Piping37,950 Grout5,995 Pumps38,390 Heat Exchanger3,000 Removed Equipment Cost Savings-71,470 TOTAL51,273 System Alteration Cost Schedules Window Renovation Cost ComponentCost ($) Demo Existing Windows2,354 Install New Windows48,492 TOTAL50,846

33. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Simple Payback Analysis - Combined ⩥Total Cost = $102,119 ⩥Savings = $8,273.71 ⩥Simple Payback = 12.3 Years GSHP System Cost ComponentCost ($) Bores47,408 Piping37,950 Grout5,995 Pumps38,390 Heat Exchanger3,000 Removed Equipment Cost Savings-71,470 TOTAL51,273 System Alteration Cost Schedules Window Renovation Cost ComponentCost ($) Demo Existing Windows2,354 Install New Windows48,492 TOTAL50,846

34. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Conclusion Building E Front ⩥GSHP system and window renovation have roughly the same first costs at $51,273 & $50,846, respectively. ⩥GSHP system’s energy savings leads to a payback period of 17.1 years. ⩥Window renovation’s energy savings leads to a payback period of 9.7 years. ⩥Recommend combining both alterations to maximize savings and average the payback period. I.Introduction II.Existing Mechanical System III.Proposed System Alterations IV.CM Breadth V.Conclusion VI.Acknowledgements

35. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Acknowledgements Building E Front ⩥Sam Kulceski, and the rest of the design team at JMT who worked on Glen Burnie High School. ⩥AACPS for their permission to use their buildings. ⩥My thesis advisor, Dr. Bahnfleth. ⩥The Penn State AE faculty for all of their help and support throughout my education. ⩥My fellow 5 th year classmates. I.Introduction II.Existing Mechanical System III.Proposed System Alterations IV.CM Breadth V.Conclusion VI.Acknowledgements

36. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Questions ?

37. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Architectural Breadth ⩥Original windows replaced with better performing units ⩥New windows added to façade ⩥Modern architecture ⩥Match existing Window Replacement Load Changes Area Load Before (tons) Load After (tons) Building E140.8120.4 Building E Front After Building E Front Before

38. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Architectural Breadth Building E Rear After Building E Rear Before

39. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Architectural Breadth ⩥Glazing added to southern wall ⩥Ambient light to gymnastics area ⩥Increases thermal load on area Window Replacement Load Changes Area Load Before (tons) Load After (tons) Gymnastics Area6.47.5 Building E South Façade After Building E South Façade Before

40. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Architectural Breadth Building E Gymnastics Area After Building E Gymnastics Area Before

41. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Architectural Breadth ⩥Original windows replaced with single unit ⩥Increases ambient light to space ⩥Upgrades façade ⩥Decreases thermal load on area Window Replacement Load Changes Area Load Before (tons) Load After (tons) Gymnasium84.480.1 Building E East Façade After Building E East Façade Before Building E West Façade After Building E West Façade Before

42. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Architectural Breadth Building E Gymnasium West After Building E Gymnasium West Before

43. Glen Burnie High School Glen Burnie, MD Wade Myers Mechanical Option Architectural Breadth Building E Gymnasium East After Building E Gymnasium East Before