Results 21 to 30 of about 173 (156)
Energies, 2022 Space nuclear reactor power system (SNRPS) is a priority technical solution to meet the future space power requirement of high-power, low-mass, and long-life.
Huaqi Li +8 more
doaj +1 more source
Simple‐mix: Thermodynamics modeling in a Gama‐type Stirling engine with a working fluid mixture
Engineering Reports, Volume 5, Issue 8, August 2023., 2023 “Simple‐Mix” is developed as an updated MATLAB code for thermodynamics modeling in a Gamma‐type Stirling engine with a working fluid mixture. The mixing ratio of the working fluid (air, helium, hydrogen, argon, nitrogen, carbon dioxide, etc.) could be considered for improving the Stirling engine performance.
Bahram Vaziri +3 more
wiley +1 more source
Design and analysis of cryogenic CO2 separation from a CO2‐rich mixture
Energy Science &Engineering, Volume 11, Issue 7, Page 2253-2266, July 2023., 2023 We design and optimize the cryogenic separation process of a CO2 mixture gas and establish static process model using HYSYS simulation software. The appropriate design parameters of the device are obtained and the reasons for the change law are analyzed.
Mingzhen Lin +6 more
wiley +1 more source
Modeling dynamics of the spacecraft power plant consisting of Stirling engine and external thermal circuit [PDF]
E3S Web of Conferences, 2021 Modern space programs cover a wide range of missions, including both near-earth missions and those affecting areas of deep space. In the second case, power plants based on the conversion of thermal energy into electrical energy are often considered for ...
Valiullin Aigiz, Zenkin Vladimir
doaj +1 more source
Prediction on onset conditions of alpha, beta, and gamma type free piston Stirling generators
Energy 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
IET 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
Energies, 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
IET 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
International 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
Magnetic Bearings for Free-Piston Stirling Engines [PDF]
SAE 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