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Department of mechanical and Industrial Engineering, Tallinn University of Technology, Estonia
*Corresponding author:Reza Moezzi, Early Stage Research Scientist, Department of Mechanical and Industrial Engineering, School of Engineering, Tallinn University of Technology, U06-124, Ehitajate tee 5, 19086, Tallinn, Estonia
Submission: August 1, 2018;Published: August 13, 2018
ISSN 2640-9690 Volume1 Issue2
The free-piston engine (FPE) is a linear engine in which the requirement for a crankshaft system is eliminated and the piston assembly has a free and linear motion[1]. First proposed around 1930, FPEs were in use in the period 1930-1960 as air compressors and gas generators and provided some advantages over presenttime conventional combustion engines and gas turbine systems[2]. They are known to have a greater thermal efficiency (40-50%) than an equivalent and more conventional reciprocating engine (30-40%)[3]. A driving force behind the interest in free-piston engine generators is the automotive industry’s increasing interest in hybrid-electric vehicle technology. Much work has been undertaken by number of research groups worldwide, including the authors’ group, to explore the operation characteristics of FPEs[4,5].After initial investigations and development of freepiston related products during the early to mid-20th century, recent advances in control and real time actuation systems have enabled the technology to become a viable alternative to reciprocating technologies, and as such, research is now being carried out by number of groups worldwide [3,6-9]. Modern applications of the FPE concept have been proposed for the generation of electric and hydraulic power, typically in hybrid electric vehicles[10-15]. Known FPE applications include electric generators, hydraulic pumps and air compressors[2], which are summarised in the Table 1 below.
Ph.D in Agriculture from Faculty of Agriculture, Tohoku University
Research Professor, PhD, Holistic Research Institute
Professor, Chief Doctor, Director of Department of Pediatric Surgery, Associate Director of Department of Surgery, Doctoral Supervisor Tongji hospital, Tongji medical college, Huazhong University of Science and Technology
Senior Research Engineer and Professor, Center for Refining and Petrochemicals, Research Institute, King Fahd University of Petroleum and Minerals (KFUPM), Dhahran, Saudi Arabia
Fellow of International Agency for Standards and Ratings (IASR), Edith Cowan University, Sarich Neuroscience Research Institute
Chancellor Emeritus / Professor Emeritus of Chemistry and Physics, University of Missouri–St. Louis
Ph.D in Science from the Federal University of Alagoas, UFAL, Brazil
Assistant Professor in College of Architecture, Art and Design
Interim Dean, College of Education and Health Sciences, Director of Biomechanics Laboratory, Sport Science Innovation Program, Bridgewater State University
Professor of numerous training courses in Family Medicine
Assistant Professor, Department of Electronics and Computer Science
Emeritus Professor of Physics, Kadir Has University, Turkey
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Fooyin University, Taiwan
Saglik Bilimleri University, Turkey
Vincent Pol University, Poland
National Defence University of Malaysia, Malaysia
Dogus University, Turkey
Hope College, USA
Russian Academy of Sciences, Russia
Southern Cross University, Australia
Umm Al-Qura University, Saudi Arabia
City University of New York, USA
Khalifa University of Science & Technology, United Arab Emirates
Hebei Normal University, China
Alexandria University, Egypt
Indian Institute of Technology Kharagpur, India
Council for Agriculture Research and Analysis of Agri Economy (CREA), Italy
King Fahd University of Petroleum and Minerals, Saudi Arabia
King Abdulaziz University, Saudi Arabia
University of Oregon, USA
University of Edinburgh, Scotland
University of Tennessee, USA
Central University of Venezuela, Venezuela
Islamic Azad University Central Tehran Branch, Iran
Tourin University, Italy
Teaching & Public Speaking, Spain
Paeditric Hospital "Giovanni XXIII", Italy
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Universidad Miguel Hernández de Elche, Spain
Oral Roberts University, USA
Beijing Normal University, China
Howard University, USA
Edith Cowan University, Australia
Dubai Health Authority, UAE
University of Minnesota, USA
Indian Institute of Technology Kharagpur, India
Serhal Hospital, Lebanon
University of Malta, Malta
National Center for Global Health and Medicine, Japan
Molloy College, USA
Federal University of Piauí, Brazil
Krankenhaus Nordwest Hospital, Germany
Laval University, Canada
Cinvestav-Unidad Saltillo, Mexico
UPMC Hamot Neuroscience Institute, USA
Ramon Llull University, Spain
White Bear Associates, LLC, USA
Lehigh University, USA
California Southern University, USA
Institute of Solid State Physics of RAS, Russia
University of Buenos Aires, Argentina
Mansoura University, Egypt
King Saud University, Saudi Arabia
University of Coimbra, Portugal