Results 41 to 50 of about 5,805,641 (297)

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

Development and investigation of form-stable quaternary nitrate salt based composite phase change material with extremely low melting temperature and large temperature range for low-mid thermal energy storage

Energy Reports, 2022
This paper reports a form-stable molten salt based composite phase change material (CPCM) owning extremely low melting point and large temperature range that can be a promising candidate used in low and middle temperature thermal energy storage fields ...
Qi Li, Wenzhen Wei, Yuying Li, Chuan Li, Ruihuan Ge, Yanping Du, Xinjing Zhang, Yuting Wu   +7 more
doaj   +1 more source

Study on the Characteristics of Expander Power Output Used for Offsetting Pumping Work Consumption in Organic Rankine Cycles

Energies, 2014
The circulation pump in an organic Rankine cycle (ORC) increases the pressure of the liquid working fluid from low condensing pressure to high evaporating pressure, and the expander utilizes the pressure difference to generate work.
Yu-Ting Wu, Biao Lei, Chong-Fang Ma, Lei Zhao, Jing-Fu Wang, Hang Guo, Yuan-Wei Lu   +6 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

EXPERIMENTAL STUDY ON HEAT TRANSFER ENHANCEMENT OF AIR JET IMPINGEMENT FOR ELECTRONICS THERMAL MANAGEMENT

, 2022
Jet impingement cooling was investigated on a flat heating surface placed in a flow channel, including single jet cooling, in-line double jet cooling, and combined crossflow and jet cooling; cross-flow cooling was a baseline for comparison.
Li, Yong, Fu, Jiahong, Cao, Zhen, Sundén, Bengt, Fu, Jiahong,, Sundén, Bengt,, Cao, Zhen,, Lund University., Li, Yong,, Jiahong Fu, Zhen Cao, Bengt Sunden, Yong Li   +12 more
core   +2 more sources

Two-Dimensional Simulation of Mass Transfer in Unitized Regenerative Fuel Cells under Operation Mode Switching

Energies, 2016
A two-dimensional, single-phase, isothermal, multicomponent, transient model is built to investigate the transport phenomena in unitized regenerative fuel cells (URFCs) under the condition of switching from the fuel cell (FC) mode to the water ...
Lulu Wang, Hang Guo, Fang Ye, Chongfang Ma   +3 more
doaj   +1 more source

A Review on the Rural Household Energy in China From 1990s—Transition, Regional Heterogeneity, Emissions, Energy-Saving, and Policy

Frontiers in Energy Research, 2022
Rural energy is related to the domestic energy supply, consumption, and improvement of living standards of more than one-third of the population in China.
Xinxin Zhang, Xinxin Zhang, Kaili Xu, Kaili Xu, Maogang He, Jingfu Wang, Jingfu Wang   +6 more
doaj   +1 more source

What can Beijing learn from the world megacities on energy and environmental issues?

Energy Reports, 2022
In order to build Beijing into a world-class harmonious and livable capital city, its energy and environmental issues deserve special attention. Considering London’s experience and achievements in tackling smog crisis, New York’s world-class city ...
Xinxin Zhang, Zhenggang Lu, Maogang He, Jingfu Wang   +3 more
doaj   +1 more source

R134a flow boiling heat transfer in small diameter tubes [PDF]

, 2007
Copyright @ 2007 RT Edwards Inc.Boiling heat transfer in small diameter tubes has been experimentally investigated using R134a as the working fluid. The heat transfer periments were conducted with two stainless steel tubes of internal diameter 4.26 mm ...
Huo, Y, Karayiannis, TG, Tian, S
core   +6 more sources

Dynamic Response Characteristics Analysis and Energy, Exergy, and Economic (3E) Evaluation of Dual Loop Organic Rankine Cycle (DORC) for CNG Engine Waste Heat Recovery

Energies, 2021
Frequent fluctuations of CNG engine operating conditions make the waste heat source have uncertain, nonlinear, and strong coupling characteristics. These characteristics are not conducive to the efficient recovery of the DORC system.
Baofeng Yao, Xu Ping, Hongguang Zhang
doaj   +1 more source