10 Steps Energy Audit
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10 Steps Energy Audit Procedure Douglas Carroll Consulting Engineers 1. st Floor, 2-3 Colbeck St. Waterford. Tel: 051:306 670 Fax: 051-854 755 Email: [email protected] Stage Action Purpose Pre-Audit Phase 1 Phase I – Pre-Audit • Plan and organize • Walk-through audit • Informal interviews with energy manager production/plant manager Resource planning; establish/organize energy audit team • Organize instrumentation & time frame • Macro data collection (suitable to type of industry) • Familiarization of process/plant activities • First-hand observation & assessment of current level operation and practices 2 Conduct briefing/ awareness session with all relevant personnel (2–3 hrs) Developing co-operation • Issue questionnaire for each department • Orientation, awareness creation Audit Phase 3 Primary data gathering, process flow diagrams, & energy utility diagrams Historic data analysis; baseline data collection Prepare process flowchart(s)/schematics Prepare services/ utilities systems schematics (Example: Single line power distribution diagram, water, C.A. & steam) Review Design data, operating data and schedule of operation Annual energy bill and energy consumption pattern (refer to manuals, log sheets, equipment spec sheets, interviews) 4 Conduct survey Measurements: - Motor survey, insulation, and lighting survey with portable instruments to collect more and accurate data. - Confirm and compare actual operating data with design data. 5 Conduct detailed monitoring for biggest energy users / equipment Monitoring: – 24-hr power monitoring (MD, PF, kWh, etc.). – Load variation trends in pumps, fans, compressors, heaters,etc – Boiler efficiency trials (4 – 8 hrs) – Furnace efficiency trials – Equipment performance experiments, etc. 6 Analysis of energy use Energy and fuel balance & energy
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Transcript of 10 Steps Energy Audit
10 Steps Energy Audit ProcedureDouglas Carroll Consulting Engineers1.st Floor, 2-3 Colbeck St.Waterford.
Tel: 051:306 670Fax: 051-854 755
Email: [email protected]
StageActionPurpose
Pre-Audit Phase
1Phase I Pre-Audit Plan and organize Walk-through audit Informal interviews with energy manager production/plant managerResource planning; establish/organize energy audit team Organize instrumentation & time frame Macro data collection (suitable to type of industry) Familiarization of process/plant activities First-hand observation & assessment of current level operation and practices
2 Conduct briefing/ awareness session with all relevant personnel (23 hrs) Developing co-operation Issue questionnaire for each department Orientation, awareness creation
Audit Phase
3 Primary data gathering, process flow diagrams, & energy utility diagrams Historic data analysis; baseline data collection Prepare process flowchart(s)/schematics Prepare services/ utilities systems schematics (Example: Single line power distribution diagram, water, C.A. & steam) Review Design data, operating data and schedule of operation Annual energy bill and energy consumption pattern (refer to manuals, log sheets, equipment spec sheets, interviews)
4 Conduct survey Measurements:- Motor survey, insulation, and lighting survey with portable instruments to collect more and accurate data.- Confirm and compare actual operating data with design data.
5 Conduct detailed monitoring for biggest energy users / equipment Monitoring: 24-hr power monitoring (MD, PF, kWh, etc.). Load variation trends in pumps, fans, compressors, heaters,etc Boiler efficiency trials (4 8 hrs) Furnace efficiency trials Equipment performance experiments, etc.
6 Analysis of energy use Energy and fuel balance & energy loss/waste analysis
7 Identification and development of ECOs (Energy Conservation Opportunities) & ECMs (Energy Conservation Measures) Identification & consolidation of ECOs Conceive, develop, and refine ECM proposals Review ideas suggested by client personnel Review options suggested by preliminary energy audit Use brainstorming and value analysis techniques Contact vendors for new/efficient technology
8 Cost-benefit analysis (CBA) Assess technical feasibility, economic viability, and prioritization of ECOs & ECM options for implementation Select the most promising projects Prioritize by low-, medium-, long-term measures Documentation, report presentation to top management
9 Reporting & presenting to Snr.management Documentation, report presentation to top management
Post Audit Phase
10 Implementation and follow-up Assist and implement ECMs & monitor performance Action plan, schedule for implementation Follow-up and periodic review
