Renewable energy Definition and 72 Threads

A hollow cylinder with dimensions 2 m radius,6 m height and weight 200kgs And a massive sphere weight 2000kgs with radius 30cm is placed inside the cylinder and is free to rotate. Now the whole system is tilted to it's critical angle and is rotated around a circular track. The circumference of...

Hello, I am currently working on a paper that reqires me to simulate a renewable energy grid with machine learning. I'd be grateful if anyone with experience on this can give a few suggestion as to which software to use for this task. Thanks in advance.

Hi Everyone! I am an upperclassmen undergrad of a biol background, with mainly course training in biochemistry and molecular biol, and taken chem like o-chem and a-chem, and introductory physics. I have three short term summer projects at top 5 institutions in the past and in the field of...

Whether in vacuum inside a CRT, or in a metal, a potential difference has to be applied for free electrons to move from the negative to the positive terminal. However, the reality is that free electrons are still moving when no voltage is present at the 2 ends of a metal conductor. In this...

Hey Everyone, I am a junior Physics major who would like to pursue a career in Renewable Energy Engineering. I am interested in the part of the development in which I would be designing the software, machine and every other component that goes along with the actual device (whether it be for...

For members of this forum that live outside of the United States: have you seen a boom in Renewable Energy? Do you know of universities that specialize in Renewable Energy, are there companies on the cutting edge of this field?

I'm not out of college yet, but I'm curious if any companies are offering entry level positions renewable energy engineers right now

Maybe I’m missing something, and this thread is to at least try to drill down into this to help me understand what that something might be… Basically I do not understand the almost cult like fascination with intermittent renewable energy for utility scale electricity production. My current...

Hello. For a long time, I wanted to build a wind turbine prototype that would have two concentric rotors. The design was inspired by an automotive torque converter, used with automatic transmissions. This device would have an external rotor that would be coupled to one generator and an internal...

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Hello, I was told every country needs a constant electricity production source (like coal or nuclear powerplants), and up to some proportion, renewable sources (photovoltaics, hydro, wind turbines, etc). So, my question is: what limits the amount of renewable sources? (the grid, storage...?)...

Hi, I am Eudes Vera. I am from Venezuela, but currently reside in the UK. I am a researcher on renewable energy and I would like your opinion on a number of scientific issues related in general to energy transformation.

Chasing up strange thermoelectric effect seen during career. Need about 30 minutes of technical advice from a university, but have failed to get any replies to e-mails so far. Very frustrating because my prototype seems to suggesting a new type of renewable energy, and so it must be pursued.

Hello! I've been working on a few soil based MFCs and I have been monitoring my voltage and energy output for a week now. I've made the electrodes by covering stainless steel metal meshes with activated carbon using epoxy. I've gotten some funky results as attached. As you can see... the...

To days trend topic is “Renewable Energy”. Everybody are trying to jump in this topic wagon. They are discussing either wind or solar farm is better choice for future investment. They also arguing their solution will prevent global warming. But, in my opinion (especially wind farms) will yield...

So I've noticed my little sister's helium balloons floating at the ceiling. Made me wonder if someone could create a device that could harvest energy from this buoyancy. What if I tied a very long rope to a huge balloon filled with helium, and rolled the other end of the rope to a gear attached...

What circuit design is used to ensure that the renewable energy source does not begin to absorb energy from the grid (for instance, when its terminal voltage drops below the distribution line voltage)?

So I've got this crazy idea. To put it simply, to use the heat from anaerobic composting to power hot-air engine, specifically a Stirling Engine. Based solely on my own reading, the center of a closed composting heap can reach anywhere from 120-160 degrees without killing the microorganisms...

I have a hydro turbine spinning at 62.746RPM and it produces 170.195Nm of torque. It generates 1.1183kW but ideally, I would like to step it up to at least 4.5kW. Is this possible using a gearbox and if so how can it be done?

I am a 16 year old trying to make a research paper about it for my science high school. I'd like to study how it works and whether it can be applicable to Busan, South Korea. Thank you :)

Is it feasible to turn the abundance of carbon in the atmosphere into graphene, given it is an allotrope of carbon and would it be worth the trouble?

Hello guys so I have this idea of mine which I can't get my head around and I need someone to tell me why it won't work, so let's say you have a fully pressurised tank of air and you blow that pressurised air at a turbine connected to a generator, ovisously the generator will then start to...

so I ill be going into my first year of energy systems engineering but I would really love to develop my own business surrounding things like biofuels and wind farming , i was just wondering what prospects are their to develop a business or if there are any sort of ideas around that field.

Hello everyone,I'm currently working on slabs (titles) that convert people's footsteps into electrical power via kinetic energy.Now, because I've been working with this tech over the past few months I've been thinking of new ideas for renewable energy sources.-not recreate just add to or better...

I am using TRYNSYS software to simulate solar thermal cooling. I need to install many solar thermal panels (evacuated tubes) in parallel. However, there is no feature to do that automatically in the software; so I can only add them manually with complex piping and stuff. So my question is: Is...

Which will be my reference frame while modelling and control - the reference machine in the network or the network bus itself?And if so how do i relate the dfig to this reference frame?

hello everyone, I just need some advice from others right now, so I'm going into the field of renewable energy engineering. more importantly I just wanted to know about the job prospects, where it could be in the years to come,job settings ( what would be the environment I would work in ?). and...

I've been searching the web for this answer and can't seem to find it anywhere. Can anyone help me? Is sound a renewable energy or non-renewable energy?

Hello, I have been thinking about this for awhile and struggling with what I want to do so some guidance would be helpful. Right now I am studying astrophysics and I've been in love with it for the better part of a year being that I find a lot of interest in solving problems in physics and...

I am doing my wrong project from school. Its basically a science fair but only for the students in the class. I came up with the idea to use piezoelectric plates to charge a capacitor that then charges one of those portable po charge a phone. I know I'm not the first one do this, but I do want...

I know that when I get out of school I want to help develop solar roadways, bike paths, and parking lots. Potentially even help with the efficiency rate of solar panels. However, I'm currently a mechanical engineering student with a concentration in energy. The only way to get a concentration in...

Hi, I'm Joel and I am pretty much finished school in Australia and have to make a decision about university in the near future. I love science (especially Physics) and mathematics at school so am certain that I will go into Science or Engineering but I am not quite sure what type. Whatever I do...

Hello everyone, I'm looking for a senior design project idea that incorporates nuclear science/engineering with the technology used in renewable energy engineering. My partner and I have found the idea of betavoltaics but doubt we'd have the required beta sources available in our labs. The...

HI! I am wondering if electricity generated from a friction driven turbine by winding for example can actually be stored in a battery for later consumption? Best Regards

I am a sophmore in college and I am currently majoring in Material Science Engineering and Mechanical Engineering. I want to some day hopefully work with either Robotics and/or Renewable Energy. I want to get a good combination of Mechanical, Chemistry, Electronics, computers, and basic...

Hey fellow members, This is Pritom Roy. I'm currently a B.Sc in Physics student in Khulna University Bangladesh. I've research interest in Renewable Energy and Health Physics. Thanks

Hi fellow scientists and engineers, I have a question regarding the design of a flywheel. I know that the actual engineering of a flywheel is very complex and in no way I should expect actual practical answers from this simple question. I'm just trying to get some estimates for a renewable...

Hi everyone. On these days, by watching solar panels and similar stuff, I just thought about it, and why they take such a wide surface to produce energy, and why their output is often low, as we all know. By navigating here on the internet, I've just seen a device called OPO (Optical...

I had an idea to put a rotating mill turbine into the pipes that supply water to home tap systems. So that as the water flows through, the turbine is spun and electricity is produced. But why isn't this actually done?

My counselors, advisers, and teachers are tired of me so I've come here for some help. I've been interested in renewable energy since I was much younger, but was wondering what kind of path one goes down to dive into becoming a part of the research involved in figuring out our problems with...

HI. I am in final year of Civil Engineering and my area of interest totally in new innovations. the things which are impossible, m try it to prove it is possible! m interest to do something in wind turbine. So could i do MS in renewable energy (Wind Turbine)?? or any other course? please suggest me.

Osmotic power is a form of renewable energy under development which exploits the salinity gradient between fresh river water and salt sea water. The phenomenon is based in osmosis principle and called Pressure Retarded Osmosis (PRO). The two fluids are separated by a semi-permeable membrane...

I am going into my second year in electrical engineering at a large state school. In my first year I was able to earn a scholarship within the college of engineering and also land an internship at one of the world's largest and most recognizable companies. This summer I'm in the oil and gas...

I'm currently on a career path I got into through an applied physics masters, but there isn't much of future in my particular field so I'm trying to switch. Additionally, I'm very concerned about climate change and I have a B.S in Electrical Engineering (with a minor in physics), so I'm...

I am currently undertaking a HND in Electrical Engineering and for my graded unit project I have chosen 'Power quality in renewable energy systems'. I was hoping someone could recommend a good book to help. Thanks

Germany eyes swift cuts in renewable energy subsidies http://news.yahoo.com/germany-eyes-swift-cuts-renewable-energy-subsidies-164549194.html See also - https://www.physicsforums.com/showthread.php?t=607814 In the US, some wind producers use 'negative' pricing to push their power onto...

Hello, . . I have this concept sketch, of a new configuration from what I have been seeing in,. "wave energy", (in this case tide flow force energy), . . I believe that generally speaking, as a concept, there seems to be advantages. Although this is just the water wheel without turbine in...

I'm presently pursuing my undergraduate in Mechanical Engineering, and I need help in choosing a thesis topic in Renewable Energy(as that is what I want to pursue my future in). My university is not equipped with state of the art labs, though they manage to meet the requirements of having the...

Hi everyone, What do you know about renewable energy phd programs in US? I skimmed through the internet for it, however I couldn't find many. Renewable energies are very crucial and its researches are very promising. Why there are only few universities with energy institutes or graduate...

dear members, i would like to thank the owners of this forum for giving us students the opportunity to share our ideas and thoughts about topics related to electronics. i would like to help me pick up few thoughts or ideas for a senior project related to renewable energy such as solar or...