Des Murphy Kovara Energy Consultants Establish a Measuring and Monitoring System Energy MAP Step 18...
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![Page 1: Des Murphy Kovara Energy Consultants Establish a Measuring and Monitoring System Energy MAP Step 18 K O V A R A Energy Consultants.](https://reader030.fdocuments.in/reader030/viewer/2022033107/56649da05503460f94a8b9e0/html5/thumbnails/1.jpg)
Des Murphy
Kovara Energy Consultants
Establish a Measuring and Monitoring System
Energy MAP Step 18K O V A R A
Energy Consultants
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Why Monitor Energy
• Allows you to identify drifts in efficiency due to poor maintenance or operation
• Analysis of data often turns up new ideas for energy saving.
• It allows you to predict the savings to be expected from energy saving investments and actions.
• It gives you control of energy utilisation.
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Links to energy MAP
CommitProof of success needed to maintain commitment
Step 7: Key FactorsData analysis helps us to identify the key factors
Step 8: Survey Large measuring element here
Step 10: Targets Targets based on historical performance
Step 17: Monitoring Step 18 provides the “How To”
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Elements of Step 18
• Record• Normalise• Analyse• Target• Monitor• Report• Control
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Record: What plant to record?
Consumption x “Slippage Potential”
“Slippage Potential”: • Poor maintenance• Poor operation• Raw material
Efficiency Slip Potential
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Record: What to measure
Process
Consumption / Yield meters
Condition Indicators
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Record: What to measure
Process
Consumption / Yield meters
Condition Indicators
Example: Air Compressors
•Meter Electricity•Flow meter on compressed air
•Air off temperature•Filter pressure loss•Loaded and Unloaded hours
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Record: What to measure
Process
Consumption / Yield meters
Condition Indicators
Example: Chiller
•Meter Electricity•Heat meter on chilled water
•Condensing temp – ambient temp•Evaporator tem
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Record: What to measure
Process
Consumption / Yield meters
Condition Indicators
Example: Process CA
•Process compressed air flow meter•Record production
•Identify the easily measurable factors that determine compressed air usage
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Record: How to Measure
Testers
Meters / Sensors
Data Collection•Automatic Data Collection
•Data loggers
•Manual
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Record: How to Measure
Testers
Meters / Sensors
Data Collection•Automatic Data Collection
•Data loggers
•Manual
Digital thermometer Combustion analyser Light meter Manometer Clip-on ammeter Velocity meter
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Record: How to Measure
Testers
Meters / Sensors
Data Collection•Automatic Data Collection
•Data loggers
•Manual
Air flow meter (€1,900) Steam meter (€2,500) Electricity meter (€300)
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Record: How to Measure
Testers
Meters / Sensors
Data Collection•Automatic Data Collection
•Data loggers
•Manual
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Analyse: How?
• “First Principles” approach
The core of energy monitoring is to derive a formula which gives the energy which should have been used for the period and compare the actual to this.
Analyse• Regression analysis
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Analyse: Regression
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Normalise: Secondary Drivers
The concept of Secondary Drivers
Examples:• Air compressor (load pattern)
• Chiller (ambient temp, evaporating temp)
• Process (product weight, raw material, etc
Normalisation factors usually come from the “First Principles” analysis
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Target: On what basis?
Recap: Each week compare ACTUAL with TARGET
How to establish the Target:• First principles, manufacturer’s data
• Regression analysis
• Industry benchmarks
Use All Three:• The “First Principle” gives you a good understanding of
the process from which new ideas are born
• Regression is based on real data (credible)
• Benchmarks are important management information
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Monitor: What it means
1 Each period check actual consumptions against targets
2 Check the “Condition Indicators”
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Monitor: How often?
How often should you collect the data and analyse it?
Examples:
Heating system: Monthly
Chillers: Monthly
Air Compressors: Monthly
Process: Depends on the potential for “efficiency slippage” and its cost
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Report: How detailed?
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Control: Follow up
From the report generate tasks/actions and formally ensure closure.
[Why did it happen? What procedures are being put in place to ensure that it does not happen again?
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Software: How can it help?
Data Collection Automatic, semi-automatic, manual
Data Analysis Regression, Targets, Deviation
Reporting Generate report
Control Control actions/tasks
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Data Loggers
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Data Loggers - Dent
Time-Of-Use (TOU) SmartLoggers™ are small, battery powered activity data loggers. They store events like on/off transitions of lighting, motors and other electrical devices. They record and time stamp the actual time equipment turns on and off. The on/off transition times are stored in the data logger and the data are retrieved using the TOU SmartWare software. http://www.dentinstruments.com
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Data Logger – Log-Tag
Logtag Data Recorders
• Loggers use a convenient docking station
• Ideal for cold chain applications
http://www.logtagrecorders.com/index.html
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Temp Logger - HOBO
HOBO Temp
Basic Hobo single channel temperature data logger
8 bit resolution, 8k memory Reliable, affordable data logger
performance
http://www.microdaq.com/
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Temp Logger – MicroLo
MicroLog Temp with External Sensor Data Logger
• 2 channels: Internal temperature and external input
• Sensors available for external input channel: temperature, pH, 0-10V, 0-20mA and contact adapter
• Weatherproof and dust proof
• LCD display for convenient viewing while logging
• Options for wireless communications
http://www.microdaq.com/fourier/microlog/temperature-humidity.php
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Multi-Purpose LogBox
• Two channels• Each channel accepts sensors
directly and standard input signals• 0.5 sec – 30 day logging interval• Average up to 250 reading for each
recording• Current transducer selectable 20,
100 , 150 amps• Wireless download
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Thank you
Des Murphy
Kovara Energy Consultants
[email protected] 045 522866 087 6006829
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