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Boris Shapiro Controls expeiences
- 1. Boris Shapiro PE CertifiedSustainable Energy Management Professional BMS Controls experiences and projects 4/24/2016 Sustainable Projects in NJIT 1
- 2. 4/24/2016 Sustainable Projectsin NJIT 2 Universal Protocol and Open Architecture Controls system is functioning at NJIT: Campus Control system has over 1800 computers. NJIT’s 4 miles of network operate 28 Buildings New DDC systems were designed in house for the GITC, Redwood Hall, Student Mall, Library, York, Tiernan, EDC 3, Campus center, Laurel Hall, Colton and Campbell Buildings System controls HVAC, Lighting and Fire Alarms Morning warm up and cool down schedules are implemented. We update weekly Occupied Space Schedules Control System Sequence incorporates natural ventilation as part of the building air-conditioning strategy We program and monitor operations of the entire facility starting from the global systems to local temperature sensor Computerized Control Systems
- 3. 4/24/2016 Sustainable Projectsin NJIT 3 Innovative environmental technologies applied Campus Center, Fenster, GITC, Weston hall Demand-based controls for heating, ventilation and air conditioning Chilled water circulated while DDC controls minimum flow resistance levels Air circulation volume controlled based on the summary of all volume demands requested by individual zones. Cooling towers operate based on Wet bulb readings and Chillers load.
- 4. 4/24/2016 Sustainable Projectsin NJIT 4 GITC Building Buildings' control system change Duct Static set-points for 8 Air handling units to provide exact air quantities based on demand in individual Zones. Chilled water flow is modulated with VFD, based on Air Handling Units cooling valves position and minimum required flow. Variable speed Pumps control Condenser water flow based on Chiller’s Condenser temperature differential. Pumping energy used and losses are minimized. Variable Speed Cooling tower fan is operated based on Cooling Tower performance curve and Wet Bulb Temperature readings Fresh Air is supplied based on actual occupancy and CO2 readings of the exhausted Air. CHWST 42Deg GITC Chiller part load CHW GPM 0 100 200 300 400 500 600 700 800 900 100%90%80%70%60%50%40%30%20%15% 0.000 0.100 0.200 0.300 0.400 0.500 0.600 0.700 Evap (gpm) Sys Perf (KW/TR)
- 5. 4/24/2016 Sustainable Projectsin NJIT 5 Controlling a System of 2 Chillers to enable an ultra Efficient Cooling Plant 2nd Chillers startup sequence is improved to assure the lowest energy consumption. Chiller Capacity control and demand limiting is automated. It is based on the Building’s demand for cooling and cooling load. Chilled water temperature is reset based on outside temperature, cooling capacity and number of chillers operated to maximize system efficiency. Expected Chillers Performance Curve under Various Load Conditions
- 6. 4/24/2016 Sustainable Projectsin NJIT 6 Some of the Sustainable features: Fresh Air Heat Recovery System installed. NJIT Installed two large heat recovery systems for the air handlers that serve the Campus Center and Fenster Buildings. They are 100% outdoor air systems, that reclaim exhaust heat during winter and some cooling in the summer. Parking Garage VFD Exhaust System operates based on CO level Detection 9 High Efficiency Boilers, 3 High Efficiency Chillers with free cooling and VFD pumps operate based on immediate building needs. NJIT received HVAC and lighting Equipment Rebates for the Campus Center complex to enable implementation of sustainable features. Campus Center Building Mechanical Equipment Room Fenster Hall and Campus Center
- 7. 4/24/2016 Sustainable Projectsin NJIT 7 Demand Based HVAC Services 2 Buildings' control system change Duct Static set-points for 7 Air handling units to provide exact air quantities based on demand in 230 individual VAV Zones. Variable Speed Cooling tower fan is operated based on Cooling Tower performance curve and Wet Bulb Temperature readings To minimize resistance to water flow and resulting heat gain: – in the Secondary chilled water loop, water flow is reset based on Air Handling Units cooling valves position. – Primary Condenser water flow is based on Condenser temperature differential. – Chilled water flow is based on the total flow demand from the secondary loop. Chillers startup sequence is improved to assure the lowest energy consumption. Campus Center VFD 1 single or 2 parralel ChillersEnergy Consumption (100.00) - 100.00 200.00 300.00 400.00 500.00 600.00 700.00 800.00 200% 190% 180% 170% 160% 150% 140% 130% 120% 110% 100% 90% 80% 70% 60% 50% 40% 30% 20% System % load from 605 Ton PowerConsumptionkW Calculated Power used 1 Chiller KW Calculated Power used 2 Chillers KW Energy Saved Expecter System Power Consumption Calculated Power used 3 Chillers KW
- 8. 4/24/2016 Sustainable Projectsin NJIT 8 The green renewal of Oak Hall SOLAR TECHNOLOGIES: Solar water heating to displace gas as the primary source of hot water for cooking, showering and doing laundry. Roof-mounted photovoltaic cells ELECTRICAL SYSTEMS: Regenerative elevator technology that will capture energy generated when an elevator descends or rises High-efficiency lighting in residence and common areas utilizing the most advanced fluorescent technology with electronic ballasts.
- 9. 4/24/2016 Sustainable Projectsin NJIT 9 Efficiency Improvements in Oak Hall The Oak Hall has a number of innovative renewable energy and energy efficiency technologies: MECHANICAL SYSTEM: Demand Based, Ultra Efficient All Variable Speed Buildings Controls Direct Digital Control (DDC) and Variable Speed Systems, including Variable Frequency Drives (VFDs) for motors on the heavy system equipment, and Variable water flow. High Efficiency Chiller and Cooling Tower High Efficiency Boiler Individual Room DDC controls