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PRACTICAL, INDUSTRIAL VIBRATION ENERGY HARVESTING Dr. Adam Wasenczuk Perpetuum Ltd. Southampton Science Park Hampshire, UK.

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Presentation on theme: "PRACTICAL, INDUSTRIAL VIBRATION ENERGY HARVESTING Dr. Adam Wasenczuk Perpetuum Ltd. Southampton Science Park Hampshire, UK."— Presentation transcript:

1 PRACTICAL, INDUSTRIAL VIBRATION ENERGY HARVESTING Dr. Adam Wasenczuk Perpetuum Ltd. Southampton Science Park Hampshire, UK

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3 What is energy harvesting? Vibration Electrical Power Wireless condition monitoring of equipment

4 Microgenerator concept Unlimited energy from ambient vibration Fully enclosed unlike wind, solar etc. Mass Suspension Transducer

5 Application: condition monitoring 1. To identify failure (diagnosis) – No signal – Overtemperature 2. To identify impending failure (prognosis) – Downtime – Accident prevention – Consequential damage 3. To know why failure occurs – Pull the machine from service – Analyse the incipient failure – Change what youre doing

6 Value of condition monitoring Design Materials Manufacture Service Failure! Condition monitoring Analysis

7 Size of market How many different condition monitoring points can you see in this picture?

8 Condition monitoring: issues People – Take readings – Maintain sensors Location – Hazardous environment – Remote locations – Enclosures, assemblies, concrete… Cables – Retrofit wiring looms?

9 Example environment: ATEX Explosive atmospheres Design constraints – Stored energy – Maximum available power, voltage, current – Component redundancy – Hermetic seal – Case materials

10 PMG17

11 Wireless enabling technology Radio – : low-power short range – SMS text messaging: low bandwidth long range Energy harvesters = unlimited energy Energy harvesters = Zero maintenance

12 Vibration condition monitoring Acquire, process, transmit – Measure vibration – Fourier transform – Extract trends – Alarm Bandwidth - intensive Processor - intensive

13 System Generator Rectifier Storage Regulator μPμP Radio G-sensor T-sensor AirReciever Database Alarm!

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16 Performance (1): specification mg2Hz bandwidth – Post-rectification 40 1glarge bandwidth – > 32dB dynamic range -40C +85C 55 x 55mm cylinder M.T.T.F. > 10 yr.

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18 Performance (2): induction motors

19 Performance (3): vehicles 3mW … Vibration x Response

20 Performance (4): endurance Highly Accelerated Life Testing – Before production, but on production devices – Thermal shock – Vibration and mechanical shock – Aim: break it! 3. To know why failure occurs – Pull the machine from service – Analyse the incipient failure – Change what youre doing

21 In conclusion Power from vibration – Practical energy source – Well-characterised Wireless condition monitoring Real installed systems in difficult environments

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