Thermal and Mechanical Energy Production

1988 ◽  
pp. 140-165 ◽  
Author(s):  
J. Nitsch
Keyword(s):  
Energy Production ◽  
Mechanical Energy

Nanomechanics = biomechanics

2009 ◽  
Vol 57 (1) ◽  
pp. 47-53
Author(s):  
L. Skubiszak
Keyword(s):  
Actin Filament ◽  
Conformational Changes ◽  
Energy Production ◽  
Motor Proteins ◽  
Mechanical Energy ◽  
Living Cells ◽  
Prevailing View

Nanomechanics = biomechanicsThe knowledge of the mechanism of mechanical energy production by the so-called bioengines, living cells, could be very helpful for resolving different tasks concerning nanomechanics, e.g., construction of nanorobots. The present work considers a new idea, namely that the conformational changes within the so-called track, actin filament or microtubule are crucial for production of the mechanical energy by all bioengines. This concept contrasts with the presently prevailing view, according to which the force is generated as a result of conformational changes within the so-called motor proteins: myosin, kinesin or dynein.

Energy from Convective Vortices

2013 ◽  
Vol 283 ◽  
pp. 73-86 ◽  
Author(s):  
Louis Michaud ◽  
Brian Monrad
Keyword(s):  
Energy Production ◽  
Sea Water ◽  
Waste Heat ◽  
Mechanical Energy ◽  
Production Potential ◽  
Humid Air ◽  
Development Plans ◽  
Small Footprint ◽  
Convective Vortices ◽  
Thermodynamic Basis

An atmospheric vortex engine (AVE) uses an artificially created tornado like vortex to capture the mechanical energy produced during upward heat convection. The vortex is created by admitting warm or humid air tangentially into a circular arena with an open top. The heat source can be solar energy, warm sea water, warm humid air or waste heat. The AVE has the same thermodynamic basis as the solar chimney except that the physical chimney is replaced by centrifugal force in a vortex. The energy is produced in peripheral turbo-generators. The AVE has a large clean and sustainable energy production potential and a small footprint. The paper describes the proposed process and its thermodynamics basis. It then describes progress made to date and current development plans of AVEtec Energy Corporation including economics and plans for commercialization.

Power Optimization of NACA 0018 Airfoil Blade of Horizontal Axis Wind Turbine by CFD Analysis

2020 ◽  
Vol 9 (1) ◽  
pp. 122-139
Author(s):  
Abhishek Choubey ◽  
Prashant Baredar ◽  
Neha Choubey
Keyword(s):  
Wind Energy ◽  
Wind Turbine ◽  
Energy Production ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Energy Resources ◽  
Cfd Analysis ◽  
Blade Angle ◽  
Horizontal Axis Wind Turbine ◽  
Computational Fluid Dynamics Cfd

The country or region where energy production is based on imported coal or oil will become more self-sufficient by using alternatives such as wind power. Electricity produced by the wind produces no CO2 emissions and therefore does not contribute to the greenhouse effect. Wind energy is relatively labour intensive and thus creates many jobs. Wind energy is the major alternative of conventional energy resources. A wind turbine transforms the kinetic energy in the wind to mechanical energy in a shaft and finally into electrical energy in a generator. The turbine blade is the most important component of any wind turbine. In this article is considered the single airfoil National Advisory Committee for Aeronautics (NACA) 0018 and a computational fluid dynamics (CFD) analysis is done at different blade angles 0º, 10º, 15º, and 30º with a wind velocity of 4 m/s. The analysis results show that a blade angle of 10º gives the best possible power and pressure and velocity distributions are plotted for every case.

Energy Production and Conversion

2021 ◽  
pp. 201-250
Author(s):  
Thomas H. Fehring ◽  
Terry S. Reynolds
Keyword(s):  
Eighteenth Century ◽  
Thermal Energy ◽  
Energy Production ◽  
Fossil Fuels ◽  
Mechanical Energy ◽  
Human Muscle ◽  
Classical Antiquity ◽  
Heat Engines ◽  
Simple Machines ◽  
History Of

In many ways, energy production and its conversion from one form to another is the heart of mechanical engineering. The history of energy is vast, beginning with efforts to make the energy produced by human muscle more effective through the use of lubricants or the application of the so-called six simple machines in pre-history. By the end of Classical antiquity, inventors and engineers had harnessed the power of wind to move ships and water to grind flour. In the eighteenth century the first practical heat engines opened the era of fossil fuels, utilizing the expansive power of steam to convert thermal energy to mechanical energy.

Recent advances in Photocatalysis for renewable energy production using Microbial Fuel Cell

2019 ◽  
Vol 03 ◽  
Author(s):  
Muhammad Sohaib ◽  
Adeel Ahmed ◽  
Imran Aslam ◽  
Muhammad Sagir ◽  
Jawaria Bin Faheem ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Energy Production ◽  
Mechanical Energy ◽  
Green Energy ◽  
Light Energy ◽  
Biomass Energy ◽  
Future Perspectives ◽  
Production Methods ◽  
Renewable Energy Production

Herein, the recent development and future perspectives of nanophotocatalysis has been discussed for the sustainable and green energy generation through microbial fuel cell (MFC). The artificial photosynthesis and biomass energy production methods have reviewed comprehensively. Further, the fabrication, fundamental aspects and purposes of MFC have been discussed to clearly elaborate the concept of energy production. A lot of effort have been done to convert light energy to biomass energy artificially which is then converted into electric or mechanical energy for further use. Recent age is facing plenty of challenges to convert the light energy to bioenergy.

Preliminary Analysis of the Post-Disassembly Expansion Phase and Structural Response Under Unprotected Loss of Flow Accident in Prototype Sodium Cooled Fast Reactor

2016 ◽  
Author(s):  
Yuichi Onoda ◽  
Ken-ichi Matsuba ◽  
Yoshiharu Tobita ◽  
Tohru Suzuki
Keyword(s):  
Fast Reactor ◽  
Residual Strain ◽  
Energy Production ◽  
Structural Integrity ◽  
Mechanical Load ◽  
Mechanical Energy ◽  
Structural Response ◽  
Reactor Vessel ◽  
Fuel Vapor ◽  
Order Of Magnitude

For the prototype sodium-cooled fast reactor, MONJU, the mechanical energy and structural response under energetics caused by neutronic power excursion during Unprotected Loss of Flow accident (ULOF) were preliminarily analyzed. The objective of this study is to demonstrate the integrity of the reactor vessel against the mechanical load induced by the energetics. Conservative energy production was assumed in order to confirm the robustness of the safety design of MONJU. Mechanical energy was evaluated with the code in which mechanistic modelling of core expansion was implemented. The mechanical energy, which were obtained by analyzing the expanding behavior of core materials after energetics, were about one order of magnitude below the thermodynamic work potential calculated by assuming isentropic expansion of the fuel vapor to one atmosphere, which was often used as an indicator to express the severity of the energetics. Structural integrity was then evaluated with coupled fluid-structure dynamics code using the obtained mechanical energy. No or very small circumferential residual strain of the reactor vessel was evaluated in most analytical cases, and even in the most conservative energy production case, the residual strain was only 0.008 % so that the integrity of the reactor vessel is maintained. The result obtained in the present study shows that MONJU has enough robustness against the mechanical load under energetics.

scholarly journals Nanotechnology and Processes the Nanophotovoltaic Panels

2013 ◽  
Vol 837 ◽  
pp. 694-698 ◽  
Author(s):  
Manuel Alberto M. Ferreira ◽  
José António Filipe ◽  
José Chavaglia
Keyword(s):  
Energy Production ◽  
Mechanical Energy ◽  
Electric Energy ◽  
Production Costs ◽  
Body Motion ◽  
Energy Market ◽  
Competitive Advantages ◽  
Market Segment ◽  
Environmental Requirements ◽  
Do So

Nanotechnology can be a powerful weapon in creating competitive advantages in the energy market, through the use of the photovoltaic nanopanels, which may reduce production costs and simultaneously permit to achieve the socio-environmental requirements. Moreover, today the adoption of nanotechnology in energy production can make this kind of energy very interesting along the years. Nanotechnology may, in fact, be responsible for unimaginable gains, both economically and for preserving the planet. The use of nanotechnology in the industry production processes is evidenced in this article. The example of the electric energy produced by photovoltaic panels is the vehicle to do so. The competitive advantage associated to the use of nanotechnology to solar energy production for companies in this market segment is highlighted. Finally, in addition to the already existent nanopanels, another opportunity to revolutionize the market, already in sight, is presented: the Nanogenerators that can convert the mechanical energy of body motion in electricity.

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