1. ET 494 Senior Design II Fall 2013 By: Justin Cifreo, Benjamin Gabriel, Nathan Taylor Instructor: Dr. Cris Koutsougeras Advisor: Dr. Junkun Ma Mechanical Engineering Technology Southeastern Louisiana University SOLAR POWERED HVAC SYSTEM

2. PURPOSE The objective of this project is to research and design a solar heating, ventilation, and cooling system that will reduce Southeastern Louisiana University’s energy consumption. 2

3. 3

4. Overlay of System on Site 4

5. Previous HVAC Systems Replacing these systems 5

6. Greenhouse Heating Previously used propane convection heaters vs. new radiators 6

7. CHALLENGES Specify U values Heat Load Calculation Chiller Size Availability Control Design Specify control components and locations Complete system specification Table Top 7

8. Solar Panels Selection Manufactured by Schuco Solar Thermal Panels Array of 5 Panels Mixture of Propylene 79.2% Efficiency Rating Glycol and Water 8

9. SOLAR ABSORPTION PANEL 9

10. COMSOL PROTOTYPE 10

11. Finished Solar Panel Array Mounted Atop Steel Structure 11

12. HEAT EXCHANGERS Manufactured by Schuco Plate-Style heat exchangers Transfer heat gathered by propylene glycol to water 12

13. HOT WATER STORAGE TANK Manufactured by Lochinvar 1,000 Gallon Capacity Provides latent heat storage 13

14. CHILLER CHARACTERISTICS Adsorption Silica gel Efficiency Operating Temperatures Operating Conditions 14

15. CHILLER CHARACTERISTICS cont. Environmentally friendly Temperature range Noise Small electricity consumption Durability Maintenance Lifespan 15

16. CHILLER EFFICIENCY 16

17. Chiller Availability Old Chiller LineNew ADCM7 Chiller line 17 8 min cycle time Limited availability New ADCM7 Chiller Line release 1-40 TR @ 1k – 1.5k/ton ¼ Cycle Time 2 min. 4 times Efficiency

18. COOLING TOWER AND POND Utilization of a cooling tower with the adsorption chiller Assists in cooling process of the chiller condenser 18

19. EXTERIOR GEOTHERMAL HEAT SINK 19

20. HEAT LOSS Two types of building material Concrete Masonry Units (CMUs) Nominal size 16×8×8 inch Insulated Metal Panels (IMPs) 26 gauge metal Sandwiched Insulation 20

21. Heat Loss Analysis U-values & R-values Doors, Windows, Walls, Ceilings & Floors Infiltration 21

22. Heat Loss Calculation Formulas 22

23. Heat Loss Calculation 23

24. Energy Loss or Gain During Fluid Transfer 24

25. Final System Schematic 25

26. OVERALL SYSTEM CONTROL 26

27. OVERALL SYSTEM CONTROL 27

28. OVERALL SYSTEM CONTROL 28

29. System Component List 29

30. DELIVERABLES/ SOLUTIONS Solar HVAC system schematic  Measured spaces for heat load calculation  Created heat load and flow rate equations  Made excel spreadsheet for heat load calculation and flow rate analysis  Designed system control layout and flow charts for system  Built tabletop model of system layout  Compile price sheet for components  30

31. TIMELINE 31 DateTask 8/30 Created excel spreadsheet for heat load calculation (rough) 9/18Obtain and Learn Manual J for heat load 9/20Work on System Control Diagram 9/30Complete System Component List 10/30Determine System Load 11/30Complete Table-Top System Model 12/2Compile price sheet for system components

32. REFERENCES 32 Engineeringtoolbox.com Modern Refrigeration and Air Conditioning 18 th edition Shuco USA Lochinvar Corporation Adsorptionchiller.com Manual J: Calculating Heat Losses, Manual 3, Sixth Edition

33. SOLAR POWERED HVAC SYSTEM 33 By: Justin Cifreo, Benjamin Gabriel, Nathan Taylor Accomplishments Heat Load Calculation System Schematic System Specification List Demonstrative Table Top 3D Model Control Diagram