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Belimo Energy Valve™ Investing in Efficiency

Belimo Energy Valve™ Investing in Efficiency. Chiller Plants Overall Energy Efficiency. ♦ Higher Efficiency Coefficient reflects higher plant efficiency. Source:. Chiller Plants Overall Electric C onsumption. Plant A (Office). Plant B (Museum). Chillers Avg 51%. Pumps Avg 25.5%.

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Belimo Energy Valve™ Investing in Efficiency

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  1. Belimo Energy Valve™ Investing in Efficiency Belimo Americas Danbury, Connecticut

  2. Chiller Plants Overall Energy Efficiency ♦ Higher Efficiency Coefficient reflects higher plant efficiency Source: Belimo Americas Danbury, Connecticut

  3. Chiller Plants Overall Electric Consumption Plant A (Office) Plant B (Museum) Chillers Avg 51% Pumps Avg 25.5% Plant C (Bank) Plant D (Office) Belimo Americas Danbury, Connecticut

  4. US Cooling Energy Usage Source: US Energy Information Administration (eia) How much electricity is used for cooling in the United States? (www.eia.gov/tools/faqs/faq.cfm?id=98&t=3) Belimo Americas Danbury, Connecticut

  5. Belimo Energy Valve™is the Solution The Energy Valve is a: Pressure Independent Control Valve with an integrated Delta T Manager Belimo Americas Danbury, Connecticut

  6. Belimo Energy Valve™ Belimo Americas Danbury, Connecticut Chilled Water Plant Energy Consumption Energy Valve Benefits and Features Risk Free Investment Savings Estimator Case Studies www.energyvalve.com

  7. Pressure Independent and Delta T ManagerPump Savings in Large Tech Company in NC ♦ Pressure Independent ♦Pressure Dependent 96 GPM Delta T Manager + PI Pressure Independent (PI) 144 GPM 240 GPM Pressure Dependent Belimo Americas Danbury, Connecticut

  8. Benefits of Energy Valve • Saves on Pump • and Chiller Energy Belimo Americas Danbury, Connecticut

  9. Benefits of using Energy ValveSave Energy 1 335 330 2 Coil Power Curve 12°F Delta T Curve 10.5°F 55 GPM 65 GPM Belimo Americas Danbury, Connecticut

  10. Low Delta TCost of Overflowing the Coil… Belimo Americas Danbury, Connecticut

  11. Low Delta TCost of Chiller Staging Design Condition • Design delta T=12oF (54oF - 42oF) • 360 GPM • 1 Chiller, 90% Load (180 Ton) 360 GPM Loop flow Belimo Americas Danbury, Connecticut Chiller Plant Efficiency

  12. Low Delta TCost of Chiller Staging Low delta T • Delta T=10.4oF(52.4oF - 42oF) • 415 GPM • 2 Chillers, 45% Load (180 Ton) 415 GPM Loop flow No change to the load, but a 2nd Pump and 2nd Chiller are started. If cooling towers exist, additional cooling tower and pump may start. Belimo Americas Danbury, Connecticut Chiller Plant Efficiency A drop in delta T causes more GPM

  13. Features of Energy Valve • Power Control maintains coil power regardless of system variations • Built-in Energy Metering • Multiple Communication Options Belimo Americas Danbury, Connecticut

  14. Power ControlDefinition What is Power Control ? • A control algorithm that creates a Linear relationship between control signal and kBTU/hr output • Power Control maintains a coil power set point regardless of pressure and temperature fluctuations Coil Power (kBTU/hr) 0 1000 0V 10V Control Signal Belimo Americas Danbury, Connecticut

  15. Power ControlExample • Power Control allows the controller to deliver exact energy to the space • 0 to 10 VDC = 0 to 100% kBTU/hr Capacity • Example: 83 Ton AHU • 83 Tons ~ 1000 kBTU/hr coil • 3 VDC = 300 kBTU/hr • 7.5 VDC = 750 kBTU/hr 750 Coil Power (kBTU/hr) 0 1000 300 3V 7.5V 0V 10V Control Signal Belimo Americas Danbury, Connecticut

  16. Belimo Energy Valve™Energy Metering • Power: Q (BTU/hr) = 500 x • Flow (GPM) x • Temperature Change (°F) Belimo Americas Danbury, Connecticut • By measuring Flow (Electronic Flow Sensors) and • Delta Temperature (RTD sensors) • the Energy Valve can calculate Power/Energy

  17. Belimo Energy Valve™Energy Metering Usage Belimo Americas Danbury, Connecticut Energy Measurement Use as System Verification Tool during commissioning. Establishes a baseline performance for operation over time. Contributes to LEED.

  18. Belimo Energy Valve™Communication Volt Current Belimo Americas Danbury, Connecticut

  19. Belimo Energy Valve™Communication: Web Server Belimo Americas Danbury, Connecticut Energy Analysis Flow and Temperature Analysis Comparative Analysis

  20. Low Risk Investment Energy Efficiency Investing? Belimo Americas Danbury, Connecticut

  21. Energy Efficiency is a Low Risk Investment Source: Laitner, J., Ehrhardt-Martinez, K. and Prindle, W., 2007, “American Energy Efficiency Investment Market”, Energy Efficiency Finance Forum, American Council or and Energy Efficient Economy . Belimo Americas Danbury, Connecticut

  22. Belimo Energy Valve™Savings Estimator Belimo Americas Danbury, Connecticut

  23. Belimo Energy Valve Does it really work? Belimo Americas Danbury, Connecticut

  24. Case StudyMIT University Hayden Library - Boston, MA Belimo Americas Danbury, Connecticut Building and Project Details • 150,000 sq. ft. on 3 floors • 6 AHU provide majority of the cooling Results • Aug 9 - Oct 9, 2010 DT = 6.15°F • Aug 9 - Oct 9, 2011 DT = 12.14°F

  25. Case StudyUniversity of Miami Hospital Building and Project Details • Rosenstiel Building • 11 AHUs • 2600 Tons of Cooling • Over 10,000 GPM Results • Delta T raised from 5.5°F to 10.5°F • Flow ~ 5600 GPM • Estimated $66,000/yr savings • Estimated 2.9 year payback Belimo Americas Danbury, Connecticut

  26. Conclusion Belimo Americas Danbury, Connecticut

  27. www.energyvalve.comInformation and resources Belimo Americas Danbury, Connecticut

  28. Belimo Energy Valve™ Thank You Belimo Americas Danbury, Connecticut

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