Results 61 to 70 of about 681 (220)

Numerical Study of Entropy Generation Within Thermoacoustic Heat Exchangers with Plane Fins

Entropy, 2015
In this paper a simplified two-dimensional computational model for studying the entropy generation characteristics of thermoacoustic heat exchangers with plane fins is presented.
Antonio Piccolo
doaj   +1 more source

Breath by Breath: Navigating the Landscape of Exhaled Breath in Clinical Research and Prospects for the Future

Journal of Analytical Methods in Chemistry, Volume 2026, Issue 1, 2026.
Exhaled breath analysis (EBA) has evolved as a noninvasive diagnostic technique with enormous promise in healthcare. The development in this area is based on the concept that the breathalyzers employed to measure the alcohol concentration in the blood can be utilized to evaluate health by analyzing the intricate chemical makeup of exhaled breath, which
Nisha Parikh, Hetansh Rao, Akshada Dabhade, Vishwa Patel, Vikalp Shroff, Deep Prajapati, Palak Parikh, Ketan Ranch, B. Mahalakshmi, Shery Jacob, Sai H. S. Boddu, Maria Jose Trujillo-Rodriguez   +11 more
wiley   +1 more source

Potensi Penggunaan Bambu sebagai Tabung Resonator Thermoacoustics Refrigeration

, 2015
Thermoacoustics refrigeration is considered as one of cooling method, which recently developed. This method can be applied for cooling of foods in particular vegetables. The important components in thermoacoustics refrigeration are: resonator tube, Stack,
Yulianto, Muhamad, Hartulistiyoso, Edy, Senatosa, Irawan   +2 more
core   +1 more source

Thermal Analysis of Shell-and-Tube Thermoacoustic Heat Exchangers

Entropy, 2016
Heat exchangers are of key importance in overall performance and commercialization of thermoacoustic devices. The main goal in designing efficient thermoacoustic heat exchangers (TAHXs) is the achievement of the required heat transfer rate in conjunction
Mohammad Gholamrezaei, Kaveh Ghorbanian
doaj   +1 more source

Structural Stability of the Moore–Gibson–Thompson Heat Equation in a Semi‐Infinite Cylindrical Domain

Journal of Mathematics, Volume 2026, Issue 1, 2026.
This work analyzes the continuous dependence of solutions to the Moore–Gibson–Thompson (MGT) equation formulated via Green–Naghdi Type III second gradient elasticity theory. The governing system is defined on a semi‐infinite cylindrical domain, subject to homogeneous Dirichlet conditions on the lateral boundary.
Jincheng Shi, Yiwu Lin, Smritijit Sen
wiley   +1 more source

Investigating the effects of a heat exchanger on the thermoacoustics in a Rijke tube

, 2016
The goal of the present work is to investigate the effects of a heat exchanger on the instabilities in a Rijke tube. The motivation is the experimentally observed fact that the presence of the heat exchanger in a practical boiler changes the acoustics of
de Goey, L.P.H., Teerling, O.J., Hosseini, N., Kornilov, V.N., de Goey, L.P.H.; id_orcid, Lopez Arteaga, I.   +5 more
core   +1 more source

Data-driven optimization of a gas turbine combustor: A Bayesian approach addressing NOx emissions, lean extinction limits, and thermoacoustic stability

Data-Centric Engineering
The design of gas turbine combustors for optimal operation at different power ratings is a multifaceted engineering task, as it requires the consideration of several objectives that must be evaluated under different test conditions.
Johann Moritz Reumschüssel, Jakob G. R. von Saldern, Bernhard Ćosić, Christian Oliver Paschereit   +3 more
doaj   +1 more source

Harnessing Photo‐Energy Conversion in Nanomaterials for Precision Theranostics

Advanced Materials, Volume 37, Issue 48, December 3, 2025.
Harnessing photo‐energy conversion in nanomaterials enables precision theranostics through light‐driven mechanisms such as photoluminescence, photothermal, photoelectric, photoacoustic, photo‐triggered surface‐enhanced Raman scattering (SERS), and photodynamic processes. This review explores six fundamental principles of photo‐energy conversion, recent
Jingyu Shi, Yadi Fan, Qin Zhang, Yingying Huang, Mo Yang   +4 more
wiley   +1 more source

Sodium‐based, geopolymer foamed composites reinforced with phosphate mine waste particulates and hemp/basalt fibers

Journal of the American Ceramic Society, Volume 108, Issue 12, December 2025.
Abstract This study investigated the mechanical, microstructural, and thermal properties of Na‐based geopolymer foams (GPFs) reinforced with varying amounts of two types of reinforcements: raw phosphate mine waste rock (PMWR) as a particulate filler, and natural (hemp) or synthetic (basalt) fibers.
Sanae Sbi, Andrew Stumpf, Abdelilah Aboulayt, Nawal Semlal, Jones Alami, Youssef Tamraoui, Waltraud M. Kriven   +6 more
wiley   +1 more source

Desenvolvimento de um refrigerador termoacústico tipo onda estacionária [PDF]

, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológio, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2009Termoacustica é um fenomeno físico no qual um gradiente de temperatura em uma parede gera uma onda ...
Roman, Alisson Luiz
core