Energy Harvesting Articles
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Hybrid powertrain for light aircraft
In this paper, we evaluate the possibility of employing a hybrid powertrain to propel a light aircraft. The work suggests that the incorporation of a hybrid powertrain has little effect on fuel consumption for a light aircraft operating in a condition of straight and level cruise. However, there is a potential decrease in fuel consumption when a light aircraft operates either in climb or when ...
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Solar Energy has Little Impact on Birds
People are not worried about the pollution coming from the renewable energy sources, because most of them do not produce significant amounts of pollution. The supplies, the process of how the supplies come to the source and the demolishing machines used to erect these renewable energy sources are the true culprits wreaking havoc environmentally. For instance, older wind turbines have a negative ...
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Energy harvesting from suspension systems using regenerative force actuators
In this paper, harvesting vibration energy from suspension is investigated. Theoretical values for the harvested energy are calculated. Experimental evaluation of the energy is performed using vehicle road simulation facilities. An excitation signal in the frequency range of 0.5 Hz to 20 Hz is applied to the vehicle and the harvested power is calculated. Experimental results give a maximum ...
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New chip captures power from multiple sources
System developed at MIT could combine power harvested from light, heat and vibrations to run monitoring systems. Written by David L. Chandler, MIT News Office.You can read the original new in MIT NewsResearchers at MIT have taken a significant step toward battery-free monitoring systems — which could ultimately be used in biomedical devices, environmental sensors in remote locations and gauges in ...
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Researchers explain how dye-based nanotubes can help harvest light’s energy
Tiny cylinders help reveal how natural-light-harvesting antennae collect light with exceptional efficiency. Written by David L. Chandler, MIT News Office.You can read the original new in MIT NewsCompanies that make commercial solar cells are happy if they can achieve 20 percent efficiency when converting sunlight to electricity; an improvement of even 1 percent is seen as major progress. But ...
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Walki biomass cover: easy cover-up improves drying process and energy content of energy wood
Logging residue is an inexpensive and easily accessible source of biofuel, but to improve the energy content it must first dry on the ground and after that it can be stored in piles for several months. To shelter the piles from moisture through rain, snow and ice, Walki has developed a paper-based, waterproof cover that can be chipped and burned together with the residue. The importance of ...
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Are inverters PV’s Achilles Heel?
The organizers of the Utility Scale PV Yield Optimization Conference & Expo, gained exclusive access with Michael Levi, Senior Director Worldwide Marketing from Satcon to talk about the inverter market for utility solar projects, how they are positioning themselves in a competitive market and how reliable are these key components. Q1: What segment of the solar market are you targeting? ...
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Move over Star Trek: Here comes Energy
By Elisa Wood September 22, 2010 Remember when the idea of generating electricity from wind turbines and solar panels seemed really cool? No denying their benefits, but they are sooo last year. Energy folks have gazed with envy at those who work in telecommunications for a long time. They invented the cell phone. Energy wanted its own thingamabob that would completely revolutionize its ...
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Energy harvesting and current state of the technology with application to traffic monitoring
Wireless systems capable of being truly 'autonomous' present the future of wireless networks and applications. Such systems have an intrinsic advantage over systems dependent on a finite power source. Harvesting energy from a device's environment has been proposed as a solution to the difficulty of providing a 'wireless' power source. The underlying theory and operating principles of ...
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Gardens by the Bay: High performance through design optimization and integration
This is a case study on the development of the Gardens by the Bay, Bay South and Conservatory Complex to provide intelligent and integrated building responses. This article demonstrates the effectiveness of combining a number of environmental design and building services optimization steps to achieve a sustainable design. Key initiatives undertaken include high-level daylighting design of the ...
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Peak Oil – Peak Opportunity?
Possibility and public policies can harness renewable energy technologies for a bright future “Alternative” fuels are nothing new. In fact, they were the mainstream power source a century ago. Rudolph Diesel built his engine to run on peanut oil. Henry Ford designed the Model T to run on ethanol. Wind delivered a significant source of power in the last century. Cheap gasoline (and ...
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Entropy generation metric for evaluating and forecasting aircraft energy management systems
A general Entropy Generation Minimisation (EGM) technique is applied to analyse the feasibility of energy recovery from aircraft avionics via thermoelectric (TE) devices. In employing this approach, a suitable control volume definition is chosen to evaluate the impact of an energy recovery system on the overall entropy generation of the aircraft over a mission. Only those systems which are ...
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