Presentation on theme: "GENUINE | PROGRESSIVE | ADVOCATES SEASONAL COMMISSIONING Presented By: Andrew Thompson, P.E., HBDP, CxA, CEM, LEED-AP Principal Ryan Tushner, P.E., CxA,"— Presentation transcript:
GENUINE | PROGRESSIVE | ADVOCATES SEASONAL COMMISSIONING Presented By: Andrew Thompson, P.E., HBDP, CxA, CEM, LEED-AP Principal Ryan Tushner, P.E., CxA, LEED-AP BD+C Senior Cx Agent
High Performance Building Design Consultants SERVICES: High-Performance Engineering Commissioning & Energy Consulting Green Building Consulting Building Simulation & Analysis Human Inquiry Design Build QUALIFICATIONS: 60 Staff Members and 6 Offices 21 Professional Engineers 14 Commissioning Professionals 3 High-Performance Building Design Professionals
LOCAL NEBRASKA PROJECTS Ehrling Bergquist Hospital, Offutt AFB, Bellevue, NE LEED Silver Certified Bergan Mercy Medical Center, Omaha, NE Pender Community Hospital, Pender, NE CURRENT/RECENT PROJECTS NATIONAL PROJECTS Colorado Springs Outpatient Clinic, Colorado Springs, CO San Antonio Military Medical Center, San Antonio, TX Eglin AFB Hospital Realignment, Eglin AFB, FL Pursuing LEED Certification HEALTHCARE PROJECTS 85+ Healthcare Projects 40+ Healthcare Commissioning Projects 15 LEED Certified/Pursuing Recent Healthcare Experience
New Building Cx – Verify that everything works the way it was intended Re-Cx – Re-align building systems with current use – Systematically check system performance Retro-Cx – Actively reduce energy use through system tuning – Implement Facility Improvement Measures Seasonal Cx – Combination of many flavors but in small scoops What’s your flavor?
Let’s Rank them: Operating Costs System Reliability Patient Satisfaction Code Requirements / Certifications Other What are your pressure points?
Energy Savings Comfort Reliability Relieves pressure points Small adjustments with big impacts The value of seasonal Cx?
What is Seasonal Cx? Simple Cx activities with big impacts Adjust for use changes Control point check Optimizing systems System reliability checks Functional performance test a system
Don’t hit the reset button Review department moves over the past year – Update occupancy schedule – Review exhaust requirements – Review ventilation air requirements – Review pressure relationship requirements Example: – Medical offices move into therapy gym – 1000 CFM exhaust runs year round – This equates to 5 Dallas Stadiums Adjust for Use Changes
Control Point Check Impact of a bad sensor or incorrect control point can be huge Incorporate sensor checks into daily activities with the use of trending
Optimizing Systems Air Terminal Boxes – Minimum flow settings – Occupied / Unoccupied Schedules – Temperature Deadband Figure 1Figure 2 * ASHRAE Journal May 2010 180,000 SF Hospital resulted in $100,000 energy savings / yr
Optimizing Systems Outside Air – Flow quantity verification – Control sequences (verify damper operation) – Economizer
High and Low limit pressure safeties – Simple process – Mag Pressure Gauge – Air pressure System Reliability Checks
Freeze-stat checks – Mitigate significant risk – Simple process Ice bucket with a wet rag Control System UPS – Is there a UPS? – Is the UPS functional? System Reliability Checks
Pick a system of concern to focus on that year – Seasonal choices may be hot or chilled water systems – Example of Air Handling Unit FPT (link to FPT) Functional Performance Test
Look at what can be accomplished in-house first (? /SF) Contracted Seasonal Cx = $0.15 - $0.60 / SF Contracted Re-Cx = $0.30 - $0.90 / SF Cost