Results 31 to 40 of about 1,201,564 (309)

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

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

Preparation and characterization of an aluminum ammonium sulfate dodecahydrate-based composite phase change material with low supercooling and high thermal conductivity

Case Studies in Thermal Engineering
Aluminum ammonium sulfate dodecahydrate (AASD) is a promising hydrated salt-type phase change material. However, its application is severely hindered by its large undercooling and low thermal conductivity.
Zhansheng Fan, Yuanwei Lu, Tian Zhao, Qi Gao, Zhengyang Li, Yuting Wu   +5 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

Pattern geometry optimization on superbiphilic aluminum surfaces for enhanced pool boiling heat transfer

International Journal of Heat and Mass Transfer, 2020
In this study, the optimal surface pattern of low and high wettability regions for enhanced boiling heat transfer is investigated using aluminum superbiphilic surfaces. Samples are fabricated by combining chemical vapor deposition of a fluorinated silane
M. Može, M. Zupančič, I. Golobič
semanticscholar   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

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

Charging system analysis, energy consumption, and carbon dioxide emissions of battery electric buses in Beijing

Case Studies in Thermal Engineering, 2021
Bus rides have become a routine choice for the large population to travel in Beijing. By the end of November 2020, 82.84% of all buses in Beijing had switched to electric vehicles.
Xinxin Zhang, Shangyang Nie, Maogang He, Jingfu Wang   +3 more
doaj   +1 more source