Results 41 to 50 of about 6,332,657 (337)

Numerical Study of the Dynamic Response of Heat and Mass Transfer to Operation Mode Switching of a Unitized Regenerative Fuel Cell

Energies, 2016
Knowledge concerning the complicated changes of mass and heat transfer is desired to improve the performance and durability of unitized regenerative fuel cells (URFCs).
Hong Xiao, Hang Guo, Fang Ye, Chongfang Ma   +3 more
doaj   +1 more source

The Effects of CO₂ Additional on Flame Characteristics in the CH₄/N₂/O₂ Counterflow Diffusion Flame

Molecules, 2021
The effects (chemical, thermal, transport, and radiative) of CO2 added to the fuel side and oxidizer side on the flame temperature and the position of the flame front in a one-dimensional laminar counterflow diffusion flame of methane/N2/O2 were studied.
Ying Chen, Jingfu Wang, Xiaolei Zhang, Conghao Li   +3 more
doaj   +1 more source

Zeotropic Mixture Selection for an Organic Rankine Cycle Using a Single Screw Expander

Energies, 2020
The organic Rankine cycle (ORC) is a popular and promising technology that has been widely studied and adopted in renewable and sustainable energy utilization and low-grade waste heat recovery.
Xinxin Zhang, Yin Zhang, Zhenlei Li, Jingfu Wang, Yuting Wu, Chongfang Ma   +5 more
doaj   +1 more source

Suppression of natural convection heat transfer coefficients in an attic shaped enclosure [PDF]

, 2010
The use of convection suppression devices has been widely discussed in the literature as a means of reducing natural convection heat loss from enclosed spaces.
Carson, James K., M. Duke, Duke, Mike, Anderson, Timothy Nicholas, J.K. Carson, T.N. Anderson   +5 more
core   +1 more source

Refrigerant forced-convection condensation inside horizontal tubes [PDF]

, 1968
High vapor velocity condensation inside a tube was studied theoretically. The heat transfer coefficients were calculated by the momentum and heat transfer analogy.
Bae, S., Bae, Soonhoon, J.S. Maulbetsch, Maulbetsch, John S., S. Bae, Maulbetsch, J.S., W.M. Rohsenow, Rohsenow, Warren M., Rohsenow, W.M.   +8 more
core   +1 more source

The augmentation of internal tip heat transfer in gas turbine blades using a pair of delta-winglet vortex generators

, 2021
A novel method to enhance the heat transfer on the internal tip surface of gas turbine blades was developed. Effects of delta-winglet vortex generators (DWVG) and their angle of attack on the vortical structures and mechanism of enhanced heat transfer ...
Wang, Zhongqi,, Sundén, Bengt,, Luo, Lei,, Lund University., Qiu, Dandan,, Zhao, Zhiqi,, Zhou, Xun,   +6 more
core   +1 more source

Performance evaluation and optimization guidance for steam generating heat pumps with significant temperature lift

Case Studies in Thermal Engineering
Steam generating heat pumps (SGHPs) offer a promising alternative to coal-fired boilers. To address the lack of general optimization strategy of autocascade SGHP (ASGHP) for variable operating conditions and variable cycle configurations, this paper ...
Xudong Ma, Yanjun Du, Yuting Wu, Biao Lei, Cancan Zhang   +4 more
doaj   +1 more source

Enhanced heat transfer in tubes based on vascular heat exchangers in fish: Experimental investigation

International Journal of Heat and Mass Transfer, 2019
A double corrugated tube geometry for improved heat transfer performance inspired by vascular heat exchangers found in fish such as the tuna and the opah is presented.
K. Navickaitė, A. Mocerino, L. Cattani, F. Bozzoli, C. Bahl, Klaus Liltrop, Xiaodan Zhang, K. Engelbrecht   +7 more
semanticscholar   +1 more source

Experimental Study of Frost Crystals Dendrite Growth on Two Neighboring Separate Frozen Water Drops on a Cryogenic Cold Surface under Natural Convection Conditions

Energies, 2023
The effects of cold surface temperature, wet air state (temperature and humidity) and original drop size on frost dendrites growth of two neighboring separate frozen water drops of same size under natural convection conditions were investigated by ...
Fengjiao Yu, Zhongliang Liu, Yanxia Li, Yanling Chen, Yi Li   +4 more
doaj   +1 more source

An experimental investigation of structured roughness on heat transfer during single-phase liquid flow at microscale [PDF]

, 2011
This paper was presented at the 3rd Micro and Nano Flows Conference (MNF2011), which was held at the Makedonia Palace Hotel, Thessaloniki in Greece.
Lin, TY, Kandlikar, SG, 3rd Micro and Nano Flows Conference (MNF2011)   +2 more
core   +6 more sources