3D simulation of heat and mass transfer for testing of “clean energy” production technologies

2021 ◽  
Vol 28 (2) ◽  
pp. 271-280
Author(s):  
V. E. Messerle ◽  
A. S. Askarova ◽  
S. A. Bolegenova ◽  
V. Yu. Maximov ◽  
S. A. Bolegenova ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Energy Production ◽  
Clean Energy ◽  
3D Simulation ◽  
Production Technologies

scholarly journals Critical Material Applications and Intensities in Clean Energy Technologies

2019 ◽  
Vol 1 (1) ◽  
pp. 164-184 ◽  
Author(s):  
Alexandra Leader ◽  
Gabrielle Gaustad
Keyword(s):  
Climate Change ◽  
Gas Turbines ◽  
Energy Production ◽  
Greenhouse Gas Emission ◽  
Clean Energy ◽  
Proton Exchange ◽  
Critical Material ◽  
Energy Technologies ◽  
Production Technologies ◽  
Critical Materials

Clean energy technologies have been developed to address the pressing global issue of climate change; however, the functionality of many of these technologies relies on materials that are considered critical. Critical materials are those that have potential vulnerability to supply disruption. In this paper, critical material intensity data from academic articles, government reports, and industry publications are aggregated and presented in a variety of functional units, which vary based on the application of each technology. The clean energy production technologies of gas turbines, direct drive wind turbines, and three types of solar photovoltaics (silicon, CdTe, and CIGS); the low emission mobility technologies of proton exchange membrane fuel cells, permanent-magnet-containing motors, and both nickel metal hydride and Li-ion batteries; and, the energy-efficient lighting devices (CFL, LFL, and LED bulbs) are analyzed. To further explore the role of critical materials in addressing climate change, emissions savings units are also provided to illustrate the potential for greenhouse gas emission reductions per mass of critical material in each of the clean energy production technologies. Results show the comparisons of material use in clean energy technologies under various performance, economic, and environmental based units.

scholarly journals 3D simulation on convective drying process for cylindrical tea particle using CFD software to analyze the heat and mass transfer phenomena

2020 ◽  
Author(s):  
Eflita Yohana ◽  
Nazaruddin Sinaga ◽  
Haryo Pachusadewo ◽  
M. Irfan Nugraha ◽  
M. Endy Yulianto ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
3D Simulation ◽  
Convective Drying ◽  
Drying Process

Environmental Regulation, Directed Technical Change, and Economic Growth: Theoretic Model and Evidence from China

2019 ◽  
Vol 42 (5-6) ◽  
pp. 519-549 ◽  
Author(s):  
Juan Tang ◽  
Shihu Zhong ◽  
Guocheng Xiang
Keyword(s):  
Economic Growth ◽  
Environmental Pollution ◽  
Environmental Regulation ◽  
Technical Change ◽  
Energy Production ◽  
Path Dependence ◽  
Clean Energy ◽  
Theoretic Model ◽  
Directed Technical Change ◽  
Production Technologies

Can environmental regulation be used to promote directed technical change and economic growth simultaneously? We construct an endogenous economic growth model that includes environmental regulation, the extent of environmental pollution, and economic performance in a general equilibrium framework. We show that in the absence of government intervention, environmental pollution will not automatically disappear as economic growth increases. Furthermore, “threshold constraints” result from “path dependence” in the type of innovation; only when the rate of carbon tax and carbon reduction subsidy reaches a certain extent will individuals (or producers) redirect technical change toward “clean” energy production technologies innovation and away from “dirty” energy production technologies. Our article also discloses the intrinsic principle and micromechanism of environmental regulation to promote economic growth and finds that strict environmental regulation will both significantly promote the evolving labor division in clean energy production technologies innovation and achieve the benefits of improved average labor productivity in the production sector and the market size of goods, so that the benefit exceeds the switching cost.

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