Presentation on theme: "Commissioning (Cx) EPWOG Meeting October 21, 2003 Washington, D.C."— Presentation transcript:
Commissioning (Cx) EPWOG Meeting October 21, 2003 Washington, D.C.
Team Members Dwayne Colburn – PNNL Marty Fallier – BNL John Gertsen – BWXT Y-12 Jim Whitcraft – Yucca Mt. Tom Etheridge – ORNL
Commissioning What, Why, How Much ($)…… Commissioning Guidance Applications
What is Commissioning? …systematic process of ensuring that a building performs in accordance with the design intent, contract documents, and the owner's operational needs. …quality-assurance process that increases the likelihood that a newly constructed building will meet client expectations. …systematic process for achieving, verifying, and documenting that the facility and its systems, subsystems, and equipment are planned, designed, installed, and tested, and are capable of being operated and maintained according to the Owner's Project Requirements (OPR).
When does Commissioning Occur? The process begins with developing the OPR and extends through all phases of project delivery and into operation and maintenance. …through all phases of a building project. Commissioning can begin during pre-design, design, construction or building start-up. The process offers significantly greater and more cost effective benefits when it begins during pre-design or early design.
Commissioning Span of Control Commissioning Test & Balance Start-up Testing
Benefits of Commissioning Fewer change orders during the construction process Fewer call-backs Long-term tenant satisfaction Lower energy bills Avoided equipment replacement costs Improved profit margin for building owners once the building is occupied Assures building’s operational staff is properly trained Operations and maintenance manuals are compiled correctly at project turn-over.
Project documentation relevant to commissioning Commissioning Plan Quality Assurance Project Plans Construction Management Plans Test & Inspection Plans Acceptance Test Procedures O&M Manuals Training Plans Re-commissioning Management Manual
Building Systems to be Commissioned Building envelope Interior finish materials HVAC/mechanical Electrical Life safety Plumbing Facility processes
Cost Expectations O&M cost savings of 8%-20% over non-commissioned buildings Retro-Cx costs range from 3%-5% Commissioning Scope Cost Entire Building (HVAC, Controls, Electrical, Mechanical) 0.5%-1.5% of total construction cost HVAC and Automated Control System 1.5%-2.5% of mechanical system cost Electrical Systems1.0%-1.5% of electrical system cost Energy Efficiency Measures $0.23-$0.28 per square foot
Commissioning Process Develop an overall commissioning strategy Begin early in pre-design process Designate a Cx Agent (Cx-A) A/E acquired Construction contractor acquired Independent (Owner acquired) Form a commissioning team
Commissioning Agent Role Represents the “Owner “ as an objective advocate Develops the Cx Plan Develops contract language for the A/E and Construction contracts Guides the Cx process Introduces standards/strategies early in design Ensures implementation of selected measures Verifies minimum targets have been met Completes final Cx report
Commissioning Applications Oak Ridge National Laboratory 3 rd Party Development Russell Laboratory (Vivarium) JICS/ORCAS Research Support Center Nuclear Facility ORR applications Other case studies Others?
Examples: ORNL 3 rd Private Developer Facilities Cx Agent reports to owner/occupant Other parties: Developer; A/E; Constructor Cx approach - Cx covers from 90% design through post- occupancy “re-Cx” period (1 year of O&M) Cx-A performs QA-audit oversight of construction & LEED certification docs Excellent MEP contractors
Examples: ORNL 3 rd Private Developer Facilities Cx Plan: Integrated testing System component verification against spec Upset testing plan (emergency/failure mode) Dynamic and flexible Flood problem where Cx-A became critical integrator of problem correction Cx report Complete documentation of all tests, manuals, training and performance expectations
Examples: ORNL Russell Laboratory (Vivarium = “Mouse House”) Cx requirement of Design Build Contract Cx-A a former TAB contractor (1 st Cx project) Cx Plan – 3 phases 1.Design review and installation verification 2.Operational & Functional testing/training 3.Interoperability testing (failure modes)/training Cx Report – complete documentation Success key – Owner principal engineer
Examples: ORNL JICS/ORCAS (State of Tennessee Funded Facilities) Cx-A contracted with ORNL (Landlord) Other parties: TN; A/E(2); Builder Cx Tasks 1.Design reviews 2.Systems/components verification 3.Specific operations/functions testing 4.Start-up and warranty validation (10 months) 5.Training and documentation
Examples: ORNL JICS/ORCAS (State of Tennessee Funded Facilities) Cx-A Deliverables 1.Design comments 2.Cx plan per phase of work 3.Cx construction contract specification 4.Testing documentation 5.O&M manuals 6.Warranty period reports/testing/verification 7.Final Cx report
Examples: ORNL Research Support Center (RSC) Cx-Agent is internal ORNL staff A/E tasked with Cx-plan development Subcontracted to Cx- Specialty firm Identified systems to be Cx-ed Identified roles/responsibilities of Cx Team Cx-Team PM, Construction Field Representative (CFR), Design Disciplines, Constructor Cx-PM has lead role as Cx-Agent
Examples: ORNL Research Support Center (RSC) Process System readiness checklist completed by constructor prior to validation testing Verification testing performed by constructor or manufacturer Testing witnessed by CFR All checklists and testing results documented in Cx report System training performed after testing (video- taped) Cx-report filed with LEED certification package
Examples: Nuclear Facility ORR Applicability DOE-O-425.1C delineates minimum “core requirements” for operational readiness Cx provides a systematic approach to addressing the “CRs” from design through construction up to the ORR/A Approach: Ensure Cx planning requirements include ORR/A CRs (i.e. Cx-A contract) Make ORR/A CRs part of Cx plan Build the ORR/A documentation record as the project progresses Benefits Avoids 3-6 month assembly of “proof” documentation Strengthens the O&M aspects of the process Acquaints staff with ORR/A requirements
Conclusions on Cx … A growing expectation of facility delivery and management process Integrated across the planning, engineering design, construction and operational disciplines Adds cost to initial delivery of facilities but results in reduced operational and maintenance costs Requires advanced planning Can be tailored to project budget and can be delivered in various ways Supports other requirements such as LEED certification and ORRs