Results 21 to 30 of about 5,198 (182)

A Review of Airside Heat Transfer Augmentation with Vortex Generators on Heat Transfer Surface

Energies, 2018
Heat exchanger performance can be improved via the introduction of vortex generators to the airside surface, based on the mechanism that the generated longitudinal vortices can disrupt the boundary layer growth, increase the turbulence intensity and ...
Lei Chai, Savvas A. Tassou
doaj   +1 more source

Study on Surface Condensate Water Removal and Heat Transfer Performance of a Minichannel Heat Exchanger

Energies, 2020
The condensate on the surface of the minichannel heat exchanger generated during air cooling substantially reduces the heat transfer performance as it works as an evaporator in the air-conditioning system.
Xiuli Liu, Hua Chen, Xiaolin Wang, Gholamreza Kefayati   +3 more
doaj   +1 more source

Experimental Study on Airside Mass Transfer Characteristics of Fin-and-tube Heat Exchangers at Low Ambient Pressure

Zhileng xuebao, 2021
The airside mass transfer characteristics of two-plate fin-and-tube heat exchangers with different fin spacings were experimentally studied under low ambient pressure and dehumidifying conditions. The experimental conditions comprised an ambient pressure
Yuan Yunxiao, Zhang Liang, Liu Jianhua, Zhang Jiawen, Liu Qi   +4 more
doaj  

Ground Movement Tracking System for Airside Operations using Global Navigation Satellite System (GNSS) and Long Range (LoRa) Communication

Aviation Electronics, Information Technology, Telecommunications, Electricals, Controls
Accurate monitoring of ground vehicle and aircraft movement in the airport airside is essential to reduce the risk of incidents caused by limited coordination between controllers, pilots, and ground operators.
Cokorda Dwija Wisnuardana, Johan Wahyudi, Muhammad Arif Sulaiman   +2 more
doaj   +1 more source

A non-destructive method to measure the thermal properties of frozen soils during phase transition

Journal of Rock Mechanics and Geotechnical Engineering, 2015
Frozen soils cover about 40% of the land surface on the earth and are responsible for the global energy balances affecting the climate. Measurement of the thermal properties of frozen soils during phase transition is important for analyzing the thermal ...
Bin Zhang, Chanjuan Han, Xiong (Bill) Yu
doaj   +1 more source

Thermal performance of automotive radiators made of plastic and stainless steel microtubes

Case Studies in Thermal Engineering
The thermal performance of low-temperature radiators constructed from staggered banks of stainless steel microtubes (SST unit) and polymeric fibers (PF unit, polyamide 612) was investigated in air cross-flow conditions.
Ilja Astrouski, Krystof Mraz, Jan Bohacek, Ales Horak, Erik Bartuli   +4 more
doaj   +1 more source

Quasi‐BIC and Reflective Mode Coupling Drives SHG Beyond the Q Factor Limit

Small, EarlyView.
An analytical expression is developed to relate second‐harmonic generation to both the resonance Q factor and absorptance. Simulations and experiments on a dual‐resonance 3R‐MoS2 metasurface validate the formula, showing that absorptance engineering provides an effective route to enhance SHG beyond conventional Q‐only design.
Wenkai Yang, Hao Qin, Boqing Liu, Chuanyu Wang, Yilin Tang, Jiri Janousek, Xueqian Sun, Alex Y. Song, Yuerui Lu   +8 more
wiley   +1 more source

Simulating the Performance of a Heat Exchanger During Frosting [PDF]

, 2001
Factors affecting frost distribution are explored using a finite element model, developed and validated using a full-scale 8-row heat exchanger in a wind tunnel.
Bullard, C.W., Hrnjak, P.S., Verma, P.
core  

Slot-Ring Multiport Driven Antenna with Improved Airside Radiation for Terahertz Communications [PDF]

A slot-ring multiport driven (MPD) antenna is evaluated for operation in the terahertz band with emphasis on air-side radiation on a thick Indium Phosphide (InP) substrate.
Alharbi, Khalid, Kgwadi, Monageng, Wang, Jue, Wasige, Edward   +3 more
core   +1 more source

The Future of Hydrogen‐Powered Aviation: Technologies, Challenges, and a Strategic Roadmap for Sustainable Decarbonization

Advanced Energy and Sustainability Research, Volume 7, Issue 3, March 2026.
Hydrogen‐powered aviation offers a transformative pathway to zero‐emission flight by eliminating in‐flight CO2 emissions. Key considerations include propulsion systems (fuel cells and hydrogen combustion), cryogenic storage and insulation challenges, infrastructure and cost barriers, and supply‐chain constraints.
Mubasshira, Md Mahbubur Rahman, Karib Hassan Khan, Md Nizam Uddin, Dewan Hafiz Nabil   +4 more
wiley   +1 more source