SECURE ENERGY

2. SECURE ENERGY EDSON FST GLYCOL HEAT MEDIUM PACKAGE FEBRUARY 2014 ‘fired equipment specialists’

3. Part I System Overview and Design ‘fired equipment specialists’

4. Package Layout HEATER AND BUILDING MOUNTED ON THE SAME SKID. SHIPPED AS ONE UNIT. ‘fired equipment specialists’

5. Package Layout EXPANSION TANK MOUNTED ON THE SAME SKID BUT LOCATED OUTDOORS. ‘fired equipment specialists’

6. Package Layout REAR OF THE HEATER. PROCESS OUTLET IS ROUTED TO THE FRONT OF THE PACKAGE. OUTLET PIPING. OUTLET TEMPERATURE ELEMENT FOR PID CONTROL LOCATED HERE ‘fired equipment specialists’

7. Heater • Helical Coil Thermal Shock Proof High Delta T capability Schedule 40 pipe Sch 40 coil, not tubing material Designed for increased longevity with low Heat Flux rates ‘fired equipment specialists’

8. Two Pass Design ‘fired equipment specialists’

9. Process Design • Inlet temperature 155oF (68.3oC) • Outlet temperature 188oF (86.7oC) • 50/50% ethylene glycol in water @ flow rate of 228,824 lb/hr (442 gpm) • Heater design duty 6,400,000 Btu/hr ‘fired equipment specialists’

10. Burner Riello Model RS190/HW Rated Input 8,000,000 Btu/hr 8 : 1 firing rate turndown ‘fired equipment specialists’

11. Expansion Tank 808 US Gallons Capacity Designed to ASME Section VIII Design Pressure 50 PSIG and Full Vacuum @ 250oF Blanket gas setting @ 20 PSIG PSV setting @ 40 PSIG ‘fired equipment specialists’

12. Expansion Tank ‘fired equipment specialists’

13. Expansion Tank Natural Gas Blanket System and Reflex Glass Level Gauge are located inside the building ‘fired equipment specialists’

14. Pumps HOA STATION Grundfos CR120 glycol circulation pumps Multistage centrifugal Design flow rate @ 634 USgpm Design head of 106’ Motor Baldor 40 HP @ 460/3/60 VAC ‘fired equipment specialists’

15. Part II Operating Considerations ‘fired equipment specialists’

16. Heater Must maintain designed flow rate Minimum Flow Shutdown set @ 80% design flow. Prevent flame impingement on coil- regular burner tuning ‘fired equipment specialists’

17. Burner Management System ALARM SILENCE Press to silence audible alarm ALARM SILENCE LOCKOUT RESET Press to reset shutdown alarm (after alarm condition clears) LOCKOUT RESET ‘fired equipment specialists’

18. ON/OF Turns burner on and off Burner and Process Controls ON/OFF AUTO/MANUAL Switches firing rate control to either Auto or Manual operation AUTO/MANUAL MANUAL Allows firing rate to be controlled manually by turning dial to either ‘-’ to decrease or ‘+’ to increase (momentary action) MANUAL ‘fired equipment specialists’

19. Burner and Process Controls STACK HI TEMP. SHUTDOWN Set @ 401oC Manual Reset Required STACK HI TEMP. SHUTDOWN PROCESS FLUID HI TEMP. SHUTDOWN Set @ 107oC Manual Reset Required PROCESS FLUID HI TEMP. SHUTDOWN ‘fired equipment specialists’

20. Burner and Process Controls PROCESS TEMP. CONTROLLER PID loop controller set @ 87oC. Also has Operating Limit set @ 97oC. Operating Limit will shutdown the burner, but will automatically restart it once the Limit clears. LOCAL INDICATOR LIGHTS PROCESS TEMP. CONTROLLER ‘fired equipment specialists’

21. Burner Management System Alarms and Shutdowns • Process Shutdowns • Low Fluid Flow (loss of pumps, isolation valve closed, exp. tank low level shutdown of pumps) • High Stack Temperature (plugged coil, sooted coil) • High Fluid Temperature (PID controller failure) • Remote (Plant PLC) Start/Stop • Remote ESD ‘fired equipment specialists’

22. Burner Management System Alarms and Shutdowns • Burner Shutdowns • Low Gas Pressure (set @ 0.6 psig) upstream of regulator valve • High Gas Pressure (set @ 0.4 psig) downstream of regulator valve • Low Combustion Air flow (set @ field set) • Flame Fail • Local ESD ‘fired equipment specialists’

23. Burner Management System Shutdowns Location LOW GAS PRESSURE SWITCH LOCATED UNDER THE BURNER HIGH GAS PRESSURE SWITCH LOCATED AT BURNER MANIFOLD ‘fired equipment specialists’

24. Burner Management System Shutdowns Location cont’d LOW COMBUSTION AIR SWITCH LOCATED UNDER THE BURNER COVER ‘fired equipment specialists’

25. Burner Management System Start Sequence • Burner Switch to On position • Flame Safeguard Controller (Honeywell) will initiate burner start sequence, checking that all interlocks are satisfied and there is no false flame present in the furnace • FSG will initiate pre-purge cycle • Combustion Air damper is moved to high fire position (fully open) HONEYWELL FLAME SAFEGUARD CONTROLLER HONEYWELL FLAME SAFEGUARD CONTROLLER Burner cover removed ‘fired equipment specialists’

26. Burner Management System Start Sequence cont’d • After pre-purge is finished Combustion Air damper and Control Valve is moved to Low Fire position • After Control Valve and Air Damper are in Low Fire position Pilot Trail for Ignition is initiated (PTIF). • At this time UV scanner is checking the strength of the pilot flame signal • Once pilot flame is established Main Train for Ignition is initiated (MTFI) • Once Main Flame is established ,the FSG will release control to Auto Modulation via Watlow PID controller ‘fired equipment specialists’

27. COMBUSTION AIR DAMPER AND GAS VALVE LOCATION AIR/FUEL RATIO CHARACTERIZING CAM GAS VALVE COMBUSTION AIR INLET DAMPER ‘fired equipment specialists’

28. QUESTIONS ? ‘fired equipment specialists’