Results 41 to 50 of about 173 (156)

An Analysis Model Combining Gamma-Type Stirling Engine and Power Converter

Energies, 2019
Waste heat is a potential source for powering our living environment. It can be harvested and transformed into electricity. Ohmic heat is a common type of waste heat.
Hua-Ju Shih
doaj   +1 more source

Design and heat transfer optimization of a 1 kW free-piston stirling engine for space reactor power system

Nuclear Engineering and Technology, 2021
The Free-Piston Stirling engine (FPSE) is of interest for many research in aerospace due to its advantages of long operating life, higher efficiency, and zero maintenance.
Zhiwen Dai, Chenglong Wang, Dalin Zhang, Wenxi Tian, Suizheng Qiu, G.H. Su   +5 more
doaj   +1 more source

Dynamic Simulation of the CO2 Cryogenic Separation Process

International Journal of Chemical Engineering, Volume 2026, Issue 1, 2026.
This study develops steady‐state and dynamic models of a CO2 cryogenic separation process using Aspen HYSYS, focusing on control and operational robustness. The sensitive tray in the purification tower is identified using slope and sensitivity criteria, and PID controllers are applied with parameters tuned by empirical and relay autotuning.
Mingzhen Lin, Yingwei Wang, Wenbin Fan, Xiaoguang Wang, Hongfu Chen, Hegao Liu, Lintao Chen, Haoze Xu, Arnab Biswas   +8 more
wiley   +1 more source

Magnetically Coupled Free Piston Stirling Generator for Low Temperature Thermal Energy Extraction Using Ocean as Heat Sink

Journal of Marine Science and Engineering
The ocean, as one of the largest thermal energy storage bodies on earth, has great potential as a thermal-electric energy reserve. Application of the relatively fixed-temperature ocean as the heat sink, and using concentrated solar energy as the heat ...
Hao Tian, Zezhong Gao, Yongjun Gong
doaj   +1 more source

Methods for Discerning the Impact of Mucus on Host Defenses Against Viral Infection

Current Protocols, Volume 5, Issue 9, September 2025.
Abstract Mucus is an important component of airway host defenses that acts by enabling the trapping and clearance of infectious materials such as bacteria and viruses. It can be difficult, however, to design experiments that independently determine the extent to which mucus contributes to innate barrier functions in the lung.
Maria Corkran, Allison Boboltz, Gregg A. Duncan, Margaret A. Scull   +3 more
wiley   +1 more source

Design of a Slot-Spaced Permanent Magnet Linear Alternator Based on Numerical Analysis

Energies, 2022
Linear alternators work seamlessly with Free-Piston Stirling Engines (FPSE) in the energy conversion process. This research concentrates on the design and development of a tubular slot-spaced Permanent Magnet Linear Alternator (PMLA) to be coupled with ...
Chin-Hsiang Cheng, Surender Dhanasekaran
doaj   +1 more source

Performance Measurements and Control Characteristics of a 1 kW Class Free Piston Stirling Converter With AC Bus Controls

International Journal of Energy Research, Volume 2025, Issue 1, 2025.
An experimental study of the control characteristics of a 1 kW class free‐piston stirling converter (FPSC) with alternating current (AC) bus controls is conducted. A performance test rig is constructed using a commercial beta‐type FPSC, and an AC bus controller that includes a tuning capacitor, a set of load resistors, and an AC power supply is ...
Jong-Su Park, Dong-Jun Kim, Kyuho Sim, Ayman Al-Quraan   +3 more
wiley   +1 more source

Perspectives and Energy Applications of Magnetocaloric, Pyromagnetic, Electrocaloric, and Pyroelectric Materials

Advanced Energy Materials, Volume 14, Issue 39, October 18, 2024.
This perspective paper outlines a strategic roadmap for potential breakthroughs in solid‐state heating, cooling, and energy harvesting technologies by 2040, focusing on electrocaloric, pyroelectric, magnetocaloric, pyromagnetic, multicaloric, and multipyroic materials and their applications.
Katja Klinar, Jia Yan Law, Victorino Franco, Xavier Moya, Andrej Kitanovski   +4 more
wiley   +1 more source

Linear Dynamic Analysis of Free-Piston Stirling Engines on Operable Charge Pressure and Working Frequency along with Experimental Verifications

Applied Sciences, 2021
This paper presents a linear dynamic analysis on operable charge pressure and working frequency of free-piston Stirling engines (FPSE) along with experimental verifications. The equations of motion of the FPSE are formulated as a 2-degree-of-freedom (DOF)
Dong-Jun Kim, Kyuho Sim
doaj   +1 more source

A Practical Guide to 3D Printing for Chemistry and Biology Laboratories

Current Protocols, Volume 4, Issue 10, October 2024.
Abstract Three‐dimensional (3D) printing promises a revolution in laboratory creativity by enabling rapid prototyping, broader availability of scientific apparatuses, and transformative scientific workflows. We believe all chemistry and biology laboratories should equip themselves with one or more 3D printers and a critical mass of scientists trained ...
Arjun S. Pamidi, Michael B. Spano, Gregory A. Weiss   +2 more
wiley   +1 more source