HVAC equipment and systems optimization for efficiency
0 likes77 views
The document outlines the optimization of equipment and systems in HVAC commissioning by Nicholas A. Chazapis. It details various criteria for optimizing air handling units (AHUs), fan coil units (FCUs), variable air volume (VAV) systems, and temperature reset strategies as well as control measures for cooling towers and water pumps. The emphasis is on improving efficiency and performance of HVAC systems.
HVAC equipment and systems optimization for efficiency
- 1. Optimization of Equipment andOptimization of Equipment and Systemsy Nicholas A. ChazapisNicholas A. Chazapis Commissioning Consultant Athens, Greece. 1/7/2017 1
- 3. Now is the time!Now is the time! 1/7/2017 3
- 4. Now is the time!Now is the time! 1/7/2017 4
- 5. Now is the time!Now is the time! 1/7/2017 5
- 6. Equipment to optimize:Equipment to optimize: • AHU control valves selection criteria. • AHU control dampers selection criteria.AHU control dampers selection criteria. • AHU Fans selection efficiency. • FCU units selection criteria. • FCU units factory controls selectionFCU units factory controls selection. • VAV units control selection. • VAV units control strategy. 1/7/2017 6
- 7. Systems to Optimize:Systems to Optimize: • Heating water supply temperature Reset. • Chilled water supply temperature Reset.Chilled water supply temperature Reset. • Condenser water supply temperature Reset. • AHU Mixing Box / Economizer temperature. • AHU Recovery Run around coil strategyAHU Recovery. Run around coil strategy. • AHU Recovery, enthalpy wheel strategy. • AHU Air Filters change time strategy. 1/7/2017 7
- 8. Systems to Optimize:Systems to Optimize: • Liquid to liquid plate heat exchangers selection. Criteria for temperature Approach. p pp • Cooling Towers Fan Speed control. C li T li A h• Cooling Towers cooling Approach. • Water Pumps – Inverter Bank control.p • Chilled Water Temperature & DP Set point R tReset. • Chiller Staging, find optimal nr. of chillers. 1/7/2017 8