1. Boris Shapiro PE
Certified Sustainable Energy Management Professional
BMS Controls
experiences and projects
4/24/2016 Sustainable Projects in NJIT 1

2. 4/24/2016 Sustainable Projects in 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 Projects in 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 Projects in 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 Projects in 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 Projects in 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 Projects in 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 Projects in 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 Projects in 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