Campus Continuous Improvement with Controls. Bill Broadhurst, PE, CEM, LEED AP Campus Energy Manager

Transcription

1 Campus Continuous Improvement with Controls Bill Broadhurst, PE, CEM, LEED AP Campus Energy Manager 1

2 Background University Overview Agenda Plant & Personnel Description University Sustainability Goals Key elements of maintenance operation Common problems and opportunities Knowledge needed by operations staff 2

3 University Overview & Plant Description 3

4 Overview of Princeton s Campus > 180 Buildings / ~10m sq.ft. / 500 acres Academic Research Administrative Residential Athletic 4

5 Buildings with DDC 5

6 DDC Growth Control System Optimization Platforms are being installed to overlay most points in the databases to support energy conservation and greenhouse gas goals. Point Count Projected to exceed 90,400 points in 2012 with Neuro and Data Center Many energy projects are being developed that will accelerate the quantity and complexity of the databases Second Control Room Operator Hired in ,200 points in the databases

7 7

8 Energy Management Command Comfort Calls Set Point Changes Mode Changes Alarm Management Scheduling Demand response Programming Troubleshooting On Going Cx Trades Dispatch Meter Collection Critical environment oversight Account access control Support vendors, contractors Mon-Fri 6AM-6PM. Rest on call. Center 8

9 9

10 Controls by Princeton: Self Sufficiency 1. Sequence of Operations, Points List & Drawings - Engineer of Record (Consultant or PU Engineer) 2. Planning PU Engineering & GBM Shops 3. Hardware Installation PU GBM Shops 4. Graphics PU Engineering 5. Database PU Engineering 6. Programming PU Engineering 7. Start Up / Cx PU Engineering & GBM Shops 8. Warranty PU Engineering & GBM Shops 10

11 Sustainability Goals 11

12 Framework for PU Sustainability 1. Greenhouse Gas Reduction 2. Resource Conservation 3. Education & Research Princeton Sustainability Committee EcoReps 12

13 Campus Carbon Dioxide Emissions (Tons M per Year) Campus CO 2 Goal Overall Progress 180, ,000 Original 2020 Emissions Projections: 161,116 MT CO 2 140, , ,000 Cogen Installed 2007 Emissions 114,081 MT CO 2 Sustainability Plan Adopted in 2007 Current 2020 Emissions Projections: 114,255 MT CO2 Reductions In Progress: 18,132 MT CO 2 80, Goal 95,455 MT CO 2 60, Historical Goal Projected Reductions Fiscal Year Original BAU Projections with New Construction Current BAU Projections with New Construction 13

14 How to Achieve Goals Original Projections Solar 5% Low Flow Fixtures 1% Lighting Improvements 10% Grid Carbon Dioxide Reductions 9% Undetermined 19% Biodiesel 9% Plant Efficiency Improvement & Runtime 14% Building HVAC Replacement 17% Existing Building Energy Conservation Projects Distribution 8% System Improvements 8% 14

15 Metric Tons of CO2 Current Campus CO 2 Emissions Projections 130, , , , , , ,000 95,000 90,000 85,000 80, Emissions: 112,823 MT CO 2 Projected 2020 Emissions w/ New Construction loads and no ECMS: 114,255 MT CO Goal 95,455 MT CO 2 18,800 MTCO 2 Distribution System Improvements 6% Lighting Improvement Projects 22% Building HVAC Replacements 5% Control System Optimization 11% HVAC Improvement Projects 14% Central Plant Efficiency 22% Photovoltaics 16% Undetermined 4% 2020 Reduction Goal Base Year: 1990 Start Year:

16 Key Elements of Maintenance Operations 16

17 Key Elements of Maintenance Operations Standards for New Systems and Renovations Design Guidelines Specifications BAS General BAS Basic Materials, Devices and Sensors BAS Operator Interfaces BAS Field Panels BAS Communication Devices BAS Software BAS Sequences of Operation BAS Commissioning Drawings 17

18 Key Elements of Maintenance Operations Maximo Software: What has improved: Mobile work management Paperless transactions Easier reporting á la carte menu Mobile reporting Better quality data capture Timely updates of W.O. status Reduced vehicle trips to central shops for W.O.s Public display of key performance metrics (dashboard views) Workload views tailored to user Improved customer service see status of their W.O.s faster W.O. turnaround time Better documentation on transactions (photos) Minimal staff training Increased stewardship of campus Hardware flexibility Near-zero software customization Well positioned for future technology rollouts e-tools (requisitions) direct labor entry

19 Key Elements of Maintenance Operations Maximo Software: What s next: Viewing basic floor plans on mobile device Linking work order location to the building floor plan Display of hazard/special alerts on WOs Direct labor entry onto work orders Kiosks for staff not getting mobile Mobile inspection feature Mobile Project Tracking module Link to BAS for run times on equip Links to O & M documents Mobile Dashboard/KPI Displays First Floor MOBILE WORK MANAGEMENT

20 Key Elements of Maintenance Operations Procurement Strategies for Building Automation Buying Agreements Sole, Dual or Multi Source Sole or Dual source» Can still bid devices» Can still bid labor» Goal to keep common front end software for operators» If database, graphics and programming are done in house, goal to keep controllers common for programmers IT Mindset Responsibility Matrix 20

21 Key Elements of Maintenance Operations Documentation / Institutional Knowledge O&M s, SOP s, Drawings Zones. Device Locations Inventory of BACNET device Instant Id s Each needs to be unique If duplicated will have communication problems Energy Management Network See Princeton s as example Inventory / Spare Parts (picture) Standardization Have critical parts on hand Reliability / Uptime 21

22 Key Elements of Maintenance Operations Leverage Technology Portable devices Ipad access to BMS is growing fast» Started in Vivariums, expanded to Greenhouse and other labs / research space Auto dialers Automation is only effective if people are notified automatically and unless 24/7 coverage remotely Escalation / Acknowledgment Servers Link BMS to servers to allow for s and/or text messages Preventative Maintenance OA Dampers / Linkages / Actuators Vivarium Sensors On Going Cx 22

23 Common Problems and Opportunities 23

24 Common Problems and Opportunities Occupant Health & Safety Indoor Air Quality Problems Inadequate or excessive ventilation rates Solutions Demand Ventilation Control» Buy high quality CO2 sensors Distributed versus Centralized Sensors Property Protection Freezing coils Freezestats, set points» Energy waste protecting freezestats Cooney Freeze Block Water damage Leak detectors Ruptured ducts and piping Pressure Cutouts Notification 24

25 Common Problems and Opportunities Controlling Energy Costs Control Strategies Scheduling» TOD, Weekend, Holiday» Vacancy, Occ Sensor, Override Tstat Free Cooling Part Load» VFD s» Resets On Going Cx Platforms Capital energy conservation projects Central Plant Projects. Sample:» Control Upgrades to 4500 ton steam turbine chiller» New CW Pumps/Motors with VFD s and controls» New Boiler Feedwater Pumps/Motors with VFD s and controls» Free Cooling Heat Exchanger and Series Counterflow Repiping» Duct Burner Turndown» Air compressor replacement Controls Projects (especially ACH reduction projects in labs) Steam Traps Metering: CHW / STM / ELC 25

26 Common Problems and Opportunities Dependency on Information Technology Servers Networks Hardware and cabling Configuration of routers VLAN to avoid managing BBMD (ie a table of Bacnet routing data.) Firewalls Virtual Private Network / Secure Remote Access Web Site Security Certificates Account Access Mgmt. Portable Devices More and more non-facilities users! Software 26

27 Knowledge Needed by Operations Staff 27

28 Knowledge Needed by Operations Staff TRAINING! DESIRE TO LEARN! BMS Operation Ability to manage alarms Ability to command set points and modes Control Devices How to troubleshoot, test, repair and replace How to calibrate Energy Cost Control Scheduling / Microzoning Trending Functional Testing Operation of steam and/or waste heat chillers Fuel switching Demand Response New Construction / Renovation Tech. Review 28

29 Knowledge Needed by Operations Staff BMS Programming Create / Edit: Databases (ie add /remove / change points) Graphics Programs Information Technology Microsoft Office products (especially Excel.) Portable devices Work order and BMS software Servers, networks and security Integration (ie Bacnet and Modbus devices) Network troubleshooting tools Fluke Linkrunner (cable integrity and network ID verifier) Modscan for Modbus integration CAS BACNET Explorer for Bacnet device discovery Wireshark for integration troubleshooting (ie packet capture) MSDOS commands for network troubleshooting (ie ping, ipconfig, tracert, etc.) 29

30 Thank You 30