Solar Electric Propulsion Aids CostEffective Space Exploration
Music Music The objective of the solar electric propulsion project is to enable or be a step change in solar electric propulsion. Right now it is used for station keeping for a lot of geo comm sats. What we are trying to do is take it a step further, and have this electric propulsion used as the primary propulsion for satellites. We need to make higher powered solar arrays that can power these higher powered thrusters. The issue with that is that you need them to be stowed for your launch vehicle and they need.
To be autonomously deployed. We also have support from folks at Glenn and Langley, supporting that work. Historically there was the NSTAR mission and DAWN and those were on the order of 2.5 kilowatts of electric propulsion. The advanced EHF was on the order of 10 kilowatts and that was where they utilized, and that was where they used electric propulsion in a manner it was not designed for. And it succeeded, it saved a billion dollar asset. What we are looking at is a 30 kilowatt SEP TDM. So this would be.
A step change from the current state of the art, with about a factor of 3 to then something that could support human exploration. And that is on the order of 100 kilowatts to 300 kilowatts. What exactly that is we don't know for sure because of the particular architectures are trading, but it is on the order of 100200 kilowatts for human exploration. So as far as compared to chemical propulsion, you don't need as much propellant and electric propulsion is much more efficient as well. We're utilizing power from the sun to power our.
Thrusters and also other onboard electronics. So we are utilizing, caching the suns power, with our arrays, using that to power our thrusters. So our tanks that we need to power our thrusters are zenon are much smaller than what you would utilize with chemical propulsion. So what that does it allows you to either send more payload or to use smaller launch vehicles. Both of which save you a lot of money because it costs so much to send things into space. There are 4 main objectives for the mission there's technology, technology.
Development, infusing new technology. There's capability, so having a new capability, a new system, an integrated system again which is the same. And extensibility, something that can be used for this TDM but infused for human missions but also for industry. So those would be our four objectives that we are gearing towards that this mission will be targeting. SEP can be applied to broad range of missions, it would range from science missions to human exploration missions, to DOD to satellite servicing to a plethora of industry opportunities. So there.
SolarCity Unveils Worlds Most Efficient Rooftop Solar Panel with more than 22 Module Efficiency.
The Sun provides endless energy, but the average solar cell panel can convert only 14 to 20 of the energy it collects into usable electricity. Now, American energy company SolarCity has built the world's most efficient rooftop solar panel, with a module efficiency exceeding 22 percent. The new SolarCity panel generates more power per square foot and harvests more energy over a year than any other rooftop panel in production, and will be the highest volume solar panel manufactured in the Western Hemisphere. SolarCity will begin producing the first modules in small quantities this month at its 100.
MW pilot facility, but the majority of the new solar panels will ultimately be produced at SolarCity's 1 GW facility in Buffalo, New York. SolarCity expects to be producing between 9,000 10,000 solar panels each day with similar efficiency when the Buffalo facility reaches full capacity. SolarCity's panel was measured with 22.04 percent modulelevel efficiency by Renewable Energy Test Center, a thirdparty certification testing provider for photovoltaic and renewable energy products. SolarCity's new panel is created via a proprietary process that significantly reduces the manufacturing cost relative to other highefficiency technologies, and it.
Energy 101 Solar PV
MR. All right, we all know that the sun's energy creates heat and light. But it can also be converted to make electricity, and lots of it. One technology is called solar photovoltaics or PV for short. You've probably seen PV panels around for years, but recent advancements have greatly improved their efficiency and electrical output. Enough energy from the sun hits the earth every hour to power the planet for an entire year. Here's how it works. You see, sunlight is made up of tiny packets of energy called photons.
These photons radiate out from the sun, and about 93 million miles later, they collide with a semiconductor on a solar panel here on Earth. It all happens at the speed of light. Take a closer look, and you can see the panel is made up of several individual cells, each with a positive and a negative layer, which create an electric field. It works something like a battery. So the photons strike the cell, and their energy frees some electrons in the semiconductor material. The electrons create an electric current, which is harnessed.
By wires connected to the positive and negative sides of the cell. The electricity created is multiplied by the number of cells in each panel and the number of panels in each solar array. Combined, a solar array can make a lot of electricity for your home or business. This rooftop solar array powers this home, and the array on top of this warehouse creates enough electricity for about a thousand homes. OK, there are some obvious advantages to solar PV technology. It produces clean energy. It has no emissions, no moving parts, it doesn't make any noise and it doesn't need water.
Stevens ComputerAnimated Walkthrough Solar Decathlon 2015
The SURE House Stevens Institute witnessed firsthand the impact of Superstorm Sandy. The SURE House offers a new model of uncompromised coastal living that incorporates at its core both Sustainability and Resilience. The innovative building envelope provides a 90 reduction in energy consumption. The SURE House's Resilient Power and Heating System produces more energy than needed throughout the year, and is capable of providing emergency power for both the home and community during extended outages. Our modest 1,000ft2 home provides an ultraefficient interior, balanced by a generous sequence of exterior living spaces.
Los Alamos Discovers Super Efficient Solar Using Perovskite Crystals
Aditya Mohite Our group focuses on converting solar energy into electricity. And we're working on a class of solar cells which are referred to as third generation solar cells. The goal of our project was, how do we take these materials and control their crystalline properties, crystalline size, and get them to a point which are comparable to what is used in daytoday semiconductor industry like gallium arsenide or silicon. We're not there yet, silicon is the holy grail, but one of the biggest advantages of this material, at least from what we've begun to discover, is that you can make very high.
Quality crystals off this material which are large area, they are single crystalline, and they have properties which are at par with silicon or gallium arsenide. There's a lot of work that needs to be done in the engineering aspect of things, in terms of the stability you're trying to get, the right electrical contacts for them to perform at par with silicon, but I would say that this is something which will be achieved in the coming years. Wanyi Nie So, we developed a new technique, it's called the hot casting process, where we keep.
Our substrate hot and solution hot and do the spincoating at elevated temperature and at the same time the film color will be converted from light yellow to dark brown which means we're forming a highquality crystalline grain, and if we look at it under the microscope we are able to achieve up to millimeter scale large crystal grains. Normally for the crystals to grow usually require high temperature or sophisticated processing, but this method is kind of low temperature and easy solution processing. Mohite There has always beena lot of defects and disorder and multiple interfaces.
That has plagued efficiencies, and so by growing these crystals of highquality you have sort of circumvented that problem and solved an important bottleneck which has existed in this field of nanomaterial, solutionbased solar cells, third generation solar cells. Solar energy is trying to tap into the unlimited amount of solar energy that falls on Earth and that's basically free, and if you can harvest that at a very, very low cost, much cheaper that what is used, by burning coal for example, and fossil fuels, then that gives us a route to really be completely energy.
Turning Salt water into Drinking water using Solar power
According to the Securing Water for Food agency, between 2000 and 2050 water demand is expected to increase 55 percent globally, meaning the number of people affected by water scarcity will continue to grow. By 2025, twothirds of the world's population could be living in severe water stress conditions. Around the world, there is more salty groundwater than fresh, drinkable groundwater. For example, 60 percent of India is underlain by salty water and much of that area is not served by an electric grid that could run conventional reverseosmosis desalination plants.
To find solution for this drinking water issue in developing countries, USAID the U.S. Agency for International Development had run a global competion for Desal prize. The idea for the competition was to create a system that could remove salt from water and meet three criteria it had to be costeffective, environmentally sustainable, and energy efficient. The winners of the $140,000 first prize were a group from MIT and Jain Irrigation Systems. The group came up with a method that uses solar panels to charge a bank of batteries. The batteries then power a system that removes salt from the water through electrodialysis,.
That means that dissolved salt particles, which have a slight electric charge, are drawn out of the water when a small electrical current is applied. Using the sun instead of fossil fuels to power a desalination plant isn't a totally new idea. Larger solar desalination plants are being seriously investigated in areas where water is becoming a scarce resource, including Chile and California.But the current technology is expensive. The MIT team's this new desalination technology electrodialysis is comparatively less expensive. Both electrodialysis and reverse osmosis require the use of membranes, but the membranes in.
Yale Audiovisual Presentation Solar Decathlon 2015
Imagine a time before electricity. When it got too hot, you opened a window for fresh air. When it was too dark inside to read, you stepped into the sunlight. When you wanted to socialize, you actually gathered. 88 of the time, the temperature in Irvine, California, is perfect, and these simple, electricityfree solutions are enough. In a world flooded with technology, YHouse is designed so that complicated and expensive systems are not being used when these simple solutions are sufficient. Marketed for young professionals, YHouse takes a step back to reemphasize what makes.
A home in the first place comfort, healthy living, and community. Simplicity starts with construction. Standardized dimensions allow the house to be constructed in two equally sized modules, easily transportable on a flatbed truck for assembly on site. A specialized mechanical core the brains of the house is built outside of the factory with more specialized systems. This closetsized box easily slides into the house, connecting to the piping, ductwork, and wiring located in the service wall and drop ceiling of the house. This means that as technologies change, YHouse adapts.
In YHouse, when it gets hot, you can open a window. Our linear configuration maximizes airflow, so that most of the time natural ventilation is sufficient. Our heating and cooling systems are smart and know when to shut off automatically based on temperature, humidity, and carbon monoxide levels. This minimizes energy load and improves air quality inside the house. All of these systems are easily accessible in the mechanical core. YHouse features abundant natural illumination so that most of the time, you don't have turn on the lights. Extreme care has been placed into the materials used in YHouse to really make it feel like.
Home. Sustainably forested timber forms the large standing desk in the study and an extensive casing system built from reclaimed furniture allows for additional storage. Recycled Yale doors, chairs, and pallets form the large kitchen table and bench. While the east modules feature open living spaces, the western module contains appliances and equipment requiring specific task lighting. Team Yale believes that the best way to socialize is to physically gather. That is why the interior space is more than doubled through an expansive exterior deck. The interior bench extends through the wall while the dining room table is mirrored to.
The outside. An exterior screen provides shading and encourages occupants to step outside. The arbor is topped by a 10.2kW photovoltaic array to provide additional shading while also cooling the panels for increased efficiency. This space is not just meant to bring occupants outside into the perfect Irvine climate, but it is also meant to foster a sense of community within a larger neighborhood. That is why YHouse physically opens up to the public through a large frontal ramp. A communal garden at its base built with wood from Yale's very own Meyer's forest.
NextGen Solar Panels More Power From The Sun
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CostEffective Solar Power Systems With SolarMax
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