Results 41 to 50 of about 15,063 (166)

Dynamic performance of a free piston expander-linear generator for small-scale organic rankine cycle under variable operating conditions: an experimental and numerical investigation

Frontiers in Energy Research
To tackle the critical challenge of adapting free piston expander-linear generators to the dynamic operating conditions of vehicle engine waste heat recovery Organic Rankine Cycle systems, this study introduces a comprehensive Matlab/Simulink simulation ...
Dong Yan, Lianfeng Lai, Zhihui Deng, Jian Zhang, Yonghong Xu   +4 more
doaj   +1 more source

Performance Analysis of a Flexi-Fuel Turbine-Combined Free-Piston Engine Generator

Energies, 2019
The turbine-combined free-piston engine generator (TCFPEG) is a hybrid machine, generating both mechanical work from the gas turbine and electricity from the linear electric generator for battery charging.
Boru Jia, Andrew Smallbone, Rikard Mikalsen, K.V. Shivaprasad, Sumit Roy, Anthony Paul Roskilly   +5 more
doaj   +1 more source

Study of hydrogen injection strategy on fuel mixing characteristics of a free-piston engine

Case Studies in Thermal Engineering
The formation of the gas mixture in the cylinder has a significant effect on the combustion and emission of the engine. The main difference between a conventional engine and a free piston engine is that the piston movement mode is different. Therefore, a
Zhaoju Qin, Fangfang Liu, Hanbo Zhang, Xingda Wang, Chenyang Yin, Weihong Weng, Zhen Han   +6 more
doaj   +1 more source

On the design of lubricant free piston compressors [PDF]

, 2010
This thesis describes the development on long lifetime and an efficient piston compressor operating in a clean environment where oil lubrication must be excluded. Particularly in cooling systems including cryocoolers the presence of oil is a well known problem.
openaire   +2 more sources

Linear Generator for a Free Piston Stirling Engine [PDF]

Journal of Electrical and Electronics Engineering, 2014
In this paper we present some aspects about the design of a Stirling engine driven linear generator. There are summarised the main steps of the magnetic and electric calculations with application to a particular case of a cogeneration plant bassed on ...
OROS (POP) Teodora Susana, VADAN Ioan, POP Radu, BRAD Claudiu   +3 more
doaj  

Ensuring Steady Operation of Free-Piston Generator [PDF]

Journal of Systemics, Cybernetics and Informatics, 2006
This paper describes Free-Piston Generator (FPG) model and its control for achieving steady operation. A FPG is a special type of combustion engine representing a new approach concerning the conversion of the chemical energy of hydrocarbon fuel into ...
Pavel Nemecek
doaj  

Study on the Influence of Diesel Fuel Substitution Ratio on the Characteristics of Dual-Fuel Free-Piston Engines

Applied Sciences
The diesel substitution ratio is a key parameter influencing the combustion characteristics and energy conversion efficiency of hydrogen diesel dual-fuel free-piston engines.
Zhaoju Qin, Zhiao Zhang, Weihong Weng, Chenyang Yin, Zhen Han, Weizheng Zhang   +5 more
doaj   +1 more source

Realization of a Novel Free-Piston Engine Generator for Hybrid-Electric Vehicle Applications. [PDF]

Energy Fuels, 2020
Smallbone A, Hanipah MR, Jia B, Scott T, Heslop J, Towell B, Lawrence C, Roy S, Shivaprasad KV, Roskilly AP.   +9 more
europepmc   +1 more source

The Theory Model and Solution of the Wall Jet of Platform Piston Wind

Zhileng xuebao, 2013
The platform piston wind is defined firstly. Then, the wall jet theory of the platform piston wind is put forward. Through the mathematical modeling, the initial segment and main section theoretical model of the platform piston wind is built up.
Wang Lihui, Wang Wei, Du Xiaoming, Li Zhiling, Sun Yunlei, Jiang Xin   +5 more
doaj  

A novel motor-free solar-thermal vapor-pressure water pump: concept validation and thermal feasibility assessment

Frontiers in Built Environment
Electric motors account for a large share of global electricity consumption, particularly in water pumping applications for agriculture and urban infrastructure.
Hana Javadi Nejad, Behrouz Pirouz, Karolos J. Kontoleon, Patrizia Piro   +3 more
doaj   +1 more source