Results 31 to 40 of about 562 (196)

Prediction on onset conditions of alpha, beta, and gamma type free piston Stirling generators

open access: yesEnergy Science &Engineering, Volume 11, Issue 6, Page 2052-2065, June 2023., 2023
This manuscript establishes thermal‐dynamic coupling models of different types of free‐piston Stirling generators and uses the Routh stability criterion to predict startup conditions. The proposed method is not only beneficial to understand the startup characteristics of the different types of Stirling generators but also plays a reference role in the ...
Chunyun Chi   +5 more
wiley   +1 more source

Active vibration control for a Free Piston Stirling Engine generator using a voice coil actuator [PDF]

open access: yes, 2015
This work presents the study of active vibration control for a FPSE/ LA engine to ensure a reliable engine operation within a broader range of operation frequencies [50 ± 3 Hz] complying with new regulations.
Torres Perez, Angel; id_orcid   +6 more
core   +1 more source

Analytical modelling of a slotless tubular interior permanent magnet machine considering iron poles permeability

open access: yesIET Electric Power Applications, Volume 17, Issue 5, Page 607-627, May 2023., 2023
An analytical method is proposed to model the magnetic field distribution across a slotless tubular interior permanent magnet machine. The proposed model has both accuracy and low computational burden. Abstract An analytical method is proposed to model the magnetic field distribution across a slotless tubular interior permanent magnet machine. In order
Mohammad Hosein Javanmardi   +1 more
wiley   +1 more source

Design Optimization of Flexure Springs for Free-Piston Stirling Engines and Experimental Evaluations with Fatigue Testing

open access: yesEnergies, 2021
The free-piston Stirling engine is a closed-cycle regenerative heat engine that converts heat energy into mechanical work, and requires a spring element for vibratory operations of the displacer and power pistons.
Chang-Whan Lee   +3 more
doaj   +1 more source

Modelling and control strategy of a distributed small‐scale low‐temperature geothermal power generation system

open access: yesIET Renewable Power Generation, Volume 17, Issue 3, Page 539-554, 24 February 2023., 2023
Abstract At present, commercial geothermal power stations are mainly high‐temperature and medium‐temperature geothermal energy, while the large number of low‐temperature geothermal energy resources are rarely used for power generation applications. This paper proposes a new model for energy conversion in low‐temperature geothermal power systems.
Tan Zhili   +3 more
wiley   +1 more source

A Study on an Unpressurized Medium‐Temperature‐Differential Stirling Engine Integrated with a New Spiral‐Patterned Flat‐Flame Burner and a New Spiral‐Finned Hot‐End Plate

open access: yesInternational Journal of Energy Research, Volume 2023, Issue 1, 2023., 2023
The present study experimentally investigates the performance of a power generator constituted by an unpressurized Stirling engine coupled with a new flat‐flame burner. The operative temperature differential of the Stirling engine is within the medium range (around 400 K or less). In this work, there are two types of the engine’s hot‐end‐plate designs,
Wen-Lih Chen   +7 more
wiley   +1 more source

Sustainable Energy Solutions for Irrigation and Harvesting in Developing Countries [PDF]

open access: yes, 2013
One of the critical problems currently being faced by agriculture industry in developing nations is the alarming rate of groundwater depletion. Irrigation accounts for over 70% of the total groundwater withdrawn everyday.
Mehrotra, Prakhar
core   +1 more source

Control of Free Piston Stirling Linear Generator system connected with dc/dc converter for energy storage applications based on SVPWM Rectification Method

open access: yesEnergy Reports, 2022
Recently, the world has been facing several challenges in terms of environmental change, which is expected to increase in the coming periods. Further challenging is how to reduce the emissions of greenhouse gasses into the atmosphere.
Murad Ali   +3 more
doaj   +1 more source

A method for evaluating the heat rejection efficiency in a Lunar power plant consisting of a free-piston Stirling engine (FPSE) [PDF]

open access: yesE3S Web of Conferences, 2021
A method for evaluating the heat rejection efficiency in a Lunar power plant consisting of a free-piston Stirling engine FPSE is proposed. The waste heat from the FPSE is absorbed by the refrigerant circulating in a closed pumped loop and then rejected ...
Smirnov Sergey   +3 more
doaj   +1 more source

Magnetic Bearings for Free-Piston Stirling Engines [PDF]

open access: yesSAE Technical Paper Series, 1992
<div class="htmlview paragraph">This paper assesses the feasibility and efficacy of applying magnetic bearings to free-piston Stirling-cycle power conversion machinery currently being developed for long-term space missions. The study was performed for a 50-kWe Reference Stirling Space Power Converter (RSSPC) which currently uses hydrostatic gas ...
P. W. Curwen   +3 more
openaire   +1 more source

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