How to Optimize Building Operations Without Capital Improvements SMITH SECKMAN REID INC April 2 2019 How to Optimize Building Operations Without Capital Improvements Smith Seckman Reid Inc ID: 768371
Download Presentation The PPT/PDF document "How to Optimize Building Operations Wit..." is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
How to Optimize Building Operations Without Capital Improvements SMITH SECKMAN REID, INC
April 2, 2019 “How to Optimize Building Operations Without Capital Improvements " Smith Seckman Reid, Inc. Billy Schlageter, PE, Principal, EMP , CEM, CEA, CxA, LEED AP Victor Saeh, Principal, LEED AP BD+C, CxA, CEM
CHOICES FOR ENERGY EFFICIENCY
CHOICES FOR ENERGY EFFICIENCY
All Buildings Commercial Property:Cx -Over 50,000 sfBECx –Over 50,000 sfExcept if under:480,000 Btu/h -cooling600,000 Btu/h-hot water18 hp , 40 tons Texas Code adoption letter 2015 IECC Houston Amendments City of Houston Code enforcement DOES MY PROJECT NEED TO COMPLY WITH THE IECC?
CHOICES FOR ENERGY EFFICIENCY
ENERGY EFFICIENCY APPROACHESEnergy AuditsRetro Fits “Targeted” Retro Commissioning Scope dependent on Level I or Level II Tends to identify low hanging fruit ONLY Rarely leads to meaningful implementation Can be a large capitol investment Longer Payback Lower ROI Retro fit opps noted, but not the focus < 3 year payback, >33% ROI Targeted approach on optimizing existing equipment without capitol investment Energy Model Persistence through AFDD
TARGETED RETRO COMMISSIONING 4 STEP APPROACH Opportunity Assessment Investigation Implementation / Measurement & Verification Persistence HVAC Utility Consumption 12 Months Calibrated “Energy Model” with Typical ECMs Savings Projections – Consumption & Dollars Performance Baseline Identify Measures Projected ROI Energy Model Implement Measures Measure & Verify Document Improvements & Savings Sustain Savings Identify Additional Opportunities Degradation Avoidance
NAVAL MEDICAL CENTER CASE STUDY
Security Act of 2007 Retro-Commissioning is mandated for all Federal facilities according to the Energy Independence and Security Act of 2007 (EISA).
PRIOR STUDIES PERFORMED
Military Health System Retro-Commissioning Manual for Existing Facilities
CONDENSED
RETRO CX WITH A TARGETED APPROACH
COMPLETED
BUILDING BACKGROUND
BUILDING BACKGROUND
Applicable to approx. 69 AHU’sApplicable to approx. 2,760 Terminal Boxes
Discharge Air Temperature ControlRetro-Cx Discharge Set point Reset ControlApplies to all CAV AHUsFixed Setpoint Specific Reset Schedule BEFORE AND AFTER… PROPOSED
IESVE ENERGY MODELING TOOL
Baseline Post-Implementation Equation will be used to “verify” the savings ELECTRICITY BASELINE
Baseline Post-Implementation Equation will be used to “verify” the savings STEAM BASELINE
The regression equations developed during the Assessment phase will be used to verify the monthly energy savings after the Retro-Cx Measures are implemented using the calculations below. Baseline Regression Energy – Post-Implementation Regression EnergyPredicted Energy Savings=Measured Baseline Energy – Measured Post-Implementation Energy (± Adj. Factor)Actual Energy Savings = Adj. Factor = Measured Baseline Energy – Baseline Regression Energy The formulas above are from the International Performance Measurement & Verification Protocol (IPMVP) Volume 1-2002. MEASUREMENT & VERIFICATION
PROJECTIONS
PROJECTIONS AFTER INVESTIGATION PHASENO CAP X
NEXT STEPS
NEXT STEPS
20182019Military Health System Retro-Commissioning Manual for Existing Facilities
Capital Improvements are not required to achieve Energy Efficiency An approach targeted toward optimizing existing equipment / controls can be very effective with better than average ROI’sControl your fan and pump energy and you control your energy efficiency destinyFINAL THOUGHTS
How to Optimize Building Operations Without Capital Improvements SMITH SECKMAN REID, INC