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This book contains selected, peer-reviewed papers presented at the 12th International Conference on Energy Efficiency in Motor Systems (EEMODS'22), held in Stuttgart, Germany from May 3-5, 2022. As with previous conferences in this series, EEMODS'22 provided a scientific forum to discuss and debate the latest developments and impacts of electrical motor systems on energy and the environment, energy efficiency policies and programs adopted and planned, standards (including ISO 50.001), and the technical and commercial advances made in the dissemination and penetration of energy-efficient motor systems. Topics covered include emerging motor technologies, research and innovation in electric motors, power electronics and drives, pump systems, market surveillance and enforcement mechanisms, national energy efficiency standards including case studies, plus much more. The conference is international by nature and aims to attract high quality and innovative contributions from all corners of the globe, while the papers facilitate the development of new technologies, policies and strategies to increase energy efficiency.
Prof. Dr.-Ing. Peter Radgen is the University Chair for Energy Efficiency at the Institute of Energy Economics and Rational Energy Use (IER) and Head of the Graduate and Research school for "Efficient Energy Use" Stuttgart (GREES). After studying mechanical engineering at the University of Karlsruhe and INSA, Lyon (France), Dr. Radgen wrote his PhD thesis at the University of Duisburg about the energetic optimization of industrial processes. From 1995 to 2008, he worked at the Fraunhofer Institute for System and Innovation Research in Karlsruhe as Manager of the Energy Efficiency Business Unit. His main focus was energy efficiency in industrial utilities, in particular electric motors, compressors, fans and pumps. He also dealt intensively with the topics of waste heat utilization and energy efficiency in industrial furnaces and dryers. From 2008 to 2015, he worked for the utility E.ON, managing the research in the field of energy storage first, and then, from 2010 onwards he conducted the entire research program for CO2 Capture and Storage. In 2015 and 2016, he was responsible for the promotion of efficiency measures within the framework of the competitive tenders for electricity efficiency at the Swiss Federal Office of Energy, Switzerland. He is the author of many national and international publications on the topic of energy efficiency and is a certified Energy Management Officer.
Dr. Paolo Bertoldi is a senior expert and team lead working at the European Commission since 1985. Since May 2001, he has been based at the European Commission Joint Research Centre (Ispra, Italy), in charge of research activities on energy efficiency policy analysis, the efficient use of electricity (in particular ICT), and innovative policy instruments for energy efficiency (e.g. white certificates, financing mechanisms, ESCO, EPC, emission trading). He also manages the Covenant of Mayors research activities at the JRC. He has been a Contributing Author for IPCC Assessment Report 4, Lead Author for IPCC Assessment Report 5 and the Special Report on 1.5 C and recently he has been nominated Lead Author for IPCC Assessment Report 6.
Part 1 Electric Motors.- 1 Technologies for High Efficiency Electric Motors.- 2 EASA AEMT Study of Motor Repair Impact on Efficiency of Premium Efficiency (IE3) Motors.- 3 Assessment of PWM-Related Harmonic Losses in Three-Phase Induction Motors of Different Efficiency Classes.- 4 On the Selection of the Number of Poles of Three-Phase Induction Motors for Variable-Speed Power Drive Systems.- 5 Application Software for the Evaluation of Measurement Uncertainty in Induction Motors Efficiency Test According to IEC 60034-2-1.- 6 Operational Design Analysis of a Shaft Oil Spray Cooling in Electrical Machines.- 7 Measurement of Detailed Efficiency Maps Minimizing Temperature Drifts.- 8 Direct Calorimetric Test Bench for Power Drive Systems with Power Losses up to 20 kW.- 9 Impact of Stray Fields due to the Structural Integration of a Linear Synchronous Machine for Hyperloop Technology.- 10 Rare Earth-free Motors for Medium and High-power Vehicles.- 11 A Synchronous Reluctance Motor Solution for Electric Vehicles Traction.- 12 Estimation of Starting Characteristics of Three-Phase Induction Motors from No-Load Startup Tests.- 13 Influence of the Machine Design on the Indirect Efficiency Determination of Permanent-Magnet Synchronous Machines.- 14 Voltage Variations Impacts on Electrical Motors.- 15 Line-Start Synchronous Reluctance Motors.- Part 2 Pumps, Fans and Air Compressors.- 16 Optimizing Pump System Energy Efficiency using a Piping System Digital Twin and Integrated Pump Selection.- 17 Specific Energy Shells.- 18 Influence of Faults on the Efficiency of Centrifugal Pumps.- 19 Centrifugal Pump - Cavitation Detection Based on Corrected NPSHr (Net Positive Suction Head Required).- 20 Energy Savings using the Extended Product Approach for Pumps.- 21 Revision of the European Fan Efficiency Test Standard.- 22 International Fan Efficiency Test Standard.- 23 Limitations of Component-based Efficiency Regulations for Compressed Air Systems.- 24 Improving the Energy Efficiency of Compressed Air Systems by use of Pressure Equalizing Modules.- Part 3 Digitalization.- 25 Reliability of Smart Sensor in the Diagnosis of Unbalance and Misalignment of Electric Motors.- 26 Digitalization in Electric Motor Driven Systems.- 27 Predictive Temperature Distribution of Test Rig Electric Motors using Machine Learning Algorithms.- 28 Condition Diagnosis on a Gear Motor with Neural Networks Utilizing Vibration Data and the Current Values for Efficiency Enhancement.- Part 4 Policy and Standards.- 29 Minimum Energy Performance Standards (MEPS) For Central América.- 30 Energy Performance Indicators According to ISO 50001:2018.- 31 Continuous Progress in Efficiency of Electric Motors, Pumps, Fans and Variable Frequency Drives in Switzerland and the European Union.- 32 European Ecodesign Material Efficiency Standardization Supporting Circular Economy Aspects of Power Drive Systems for Sustainability.- 33 Impacts of 2nd, 3rd and 5th Order Harmonics on the Thermal Behavior of IE2-, IE3- and IE4-class Electric Motors in Grounded Star and Triangle Connections.- 34 Trends in Energy Efficiency Standards and Regulations for Electric Drive Systems.- 35 Egypt Mandates IE3 Energy Efficiency Standards for Electric Motors.- 36 Bibliometric Analysis of Scientific Production on Energy Efficiency in Motor Driven Systems.- 37 Coordination and Alignment of IEC & ISO Standards for Energy Efficient Electric Motor Driven Systems.- Part 5 Variable Speed Drives and System Analysis.- 38 Quantifying the Energy Savings Potential of Power Drive Systems [PDS].- 39 Round Robin Converters (RR'C) Results and Conclusions.- 40 Systematic Approach to Resolve 2 Pole Vibration Issue for IEEE 841.- 41 Systems Approach in Dutch Industries.- 42 Design Approach and Testing Methodology for Ball Type Non-Reverse Ratchet Mechanism for Vertical Motors.- 43 The Influence of Water Contamination on the Extreme-pressure Properties and Mechanical Stability of Lubricating Greases Applied to Wind Turbines.- 44 Measure System Evaluation about Squeal Noise in Deep Groove Ball Bearings of Electric Motors.- 45 The Efficiency Determination with a Measurement Uncertainty of Energy-Efficient Rotating Electrical Machines using Direct, Indirect, and Modified Back-to-Back Methods based on Small-scale Test Bench Measurement for Wind Turbines.
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