1. SOLAR ABSORPTION CHILLER FINAL SENIOR DESIGN PROJECT MATERIALS AND MECHANICAL ENGINEERING DEPARTMENT FLORIDA INTERNATIONAL UNIVERSITY

2. GROUP 3 Robert MartinJuan AristizabalMikail Williams Dr. Andres Tremante MEMBERS ADVISOR

3. OBJECTIVE Design a transportable air conditioning system using solar energy and absorption chiller technology.

4. MOTIVATION  Renewable energy  Abundant free source of energy: SUN!  Waste heat  Reduce carbon emissions  Reduce chlorine based refrigerants

5. GLOBAL COMPONENT

6. WFC-SC5 Manual (English) Who can benefit from this project?  Environment: by reducing carbon and chlorine emissions  World-wide disaster and remote applications  Reduce global electrical consumption  Improvement and utilization of solar energy technology

7. GLOBAL COMPONENT WFC-SC5 Manual (French) WFC-SC5 Manual (German)

8. DESIGN PROCESS

9. ASSUMPTIONS ParameterGiven Heat Medium120°F Heat Input25.1kW Vessel Pressure80mm Hg Lithium-Bromide Quality50% Water Temperature120°F Li-Br Temperature168°F Cooling Capacity17.6kW CHW Target Temperature44°F

10. COMPONENTS SELECTION

11. ABSORPTION CHILLER CYCLE Chiller Component Heat Transfer (kW) Generator25.1 Condenser20.4 Absorber22.3 Evaporator17.6 TOTAL 85.4

12. HEAT TRANSFER ANALYSIS System Component ΔT (°F) C P (J/kg-K) Q T (W) Generator1241802510014.3 Condenser154180204009.3 Evaporator1041801760012.0 Absorber1241802230012.7 Waste Heat Recovery 2041804270014.6

13. ABSORPTION CHILLER SELECTION YAZAKI WFC-SC5 ABSORPTION CHILLER  Cooling Capacity5 Tons (17.6 kW)  Cooling Output:44.6 °F Water  Heating Medium:120 °F Water

14. PUMP SELECTION Pump Number Power Flow Rate Capability (GPM) Head Capability (Ft) Pump to Use HPkW 10.1000.074614 2410 High Capacity Circulator 20.0820.061205IL-110 Inline Circulator 30.1000.0746166IL-110 Inline Circulator 40.1000.07461216 2410 High Capacity Circulator 50.0400.0298142IL-007 Inline Circulator Total 0.404 0.302 ‘Taco © Pump Selection Application’

15. TESTING CONDITIONS FOR EFFICIENCY Month G I (Btu/ft 2 /day)* Month G I (Btu/ft 2 /day)* January990July1500 February1150August1550 March1410September1300 April1610October1230 May1610November1010 June1560December900  Ambient temperature: 95 °F  Temperature in: 110 °F  Temperature out: 120 °F * Information taken from the University of Tennessee

16. SOLAR COLLECTOR SELECTION ΔT ≈ 30 °F

17. SOLAR COLLECTOR EFFICIENCY ANALYSIS Summer Month Solar Skies SS-16 Apricus AP-30 March 66%41% April 67%41% May 67%41% June 67%41% July 66%41% August 67%41% Winter Month Solar Skies SS- 16 Apricus AP-30 January 65%39% February 66%40% September 66%40% October 66%40% November 65%39% December 65%38%

18. SOLAR COLLECTOR QUANTITY

19. SOLAR COLLECTOR SELECTION

20. PV ANALYSIS  FIU-EC Panels  Charging Station  (5) Trials  (4) Hours each  Variable weather

21. PV ANALYSIS

22. PV PANELS SELECTION SUPPLIEREFFIENCYCOST Anapode Solar15.85%$2,129.13 Solar World16.03%$2,120.00 MiaSole15.5%$2,108.27 SunPower21.5%$2,300.00  Total Pump Power: 350 W  Design Output:1 kW

23. SYSTEM MODELING

24. ABSORPTION CHILLER AND WASTE HEAT RECOVERY COIL ABSORPTION CHILLERHEAT RECOVERY COIL

25. SOLAR PANELS PV PANELFLAT PLATE SOLAR COLLECTOR

26. WATER STORAGE TANK AND PUMPS 80 GALLOR WATER STORAGE TANKSOLAR WATER PUMPS

27. SYSTEM LAYOUT Solar Heat Collectors Absorption Chiller Tank AHU Recovery Waste Heat

28. PIPING LAYOUT

29. PROPOSED DESIGN ComponentManufacturerCost Absorption ChillerYakazi WFC-SC5$25,000 Flat Plate Solar Collector(4) Solar Skies SS-16$3,800 Storage Tank(80 gal) Lochnivar$2,125 Solar Pumps (5) Taco Inline Circulators $1,500 PV Panels(3) SunPower X21-345$2,300 Controls, PipingVaries$8,000 TOTAL $41,675

30. PROTOTYPE

31. ComponentCost Solar Evacuated Tubes$300 Piping$100 PV Panels$150 Circulator Pumps$100 Misc – Display/Controls/ Parts/Wiring $300 TOTAL $950 GENERATOR ABSORBER CONDENSER EVAPORATOR W.H.R SOLAR PUMP SOLAR WATER HEATING SYSTEM EVACUATED TUBE DEMO PV PANEL

32. STANDARDS

34. System ComponentDesign Standard UsedStandard Description Absorption Chiller: WFC-SC5 UL ListedAvailable Listing NEM4Cabinet Rating Solar Water Heating: Solar Skies SS-16 ISO/IEC 17065Accreditation SRCC OG-100 Operating Guidelines and Minimum Standards Certification #: 2011050J Thermal Storage TankASME Sec. VII U PV Panels: SunPower X21-345 UL 1703; IEC 61215; IEC 61730Standard Tests ISO 9001(2008); ISO 14001(2004)Quality Tests RoHS; OHSAS 18001(2007)EHS Compliance IEC 62716Ammonia Test IEC 61701Salt Spray Test 1000VPID Test CEC; UL; TUV; MCSAvailable Listings

35. CONCLUSION  Accurate engineering analysis  Achieved goals  Provided effective renewable energy technology  Collected and recycled waste heat  Used thermal radiation to heat water and generate electricity  Intended future design

36. RECOMMENDATIONS  Hybrid Panels  Increase Efficiency; Reduce Cost  Increase Portability; Reduce Size  Install absorption chiller to test  Increase PV panel efficiency  Improve thermal storage

37. QUESTIONS?

38. THANK YOU!