Question #1:
Electric Power is to be generated by installing a hydraulic turbine-generator?
. Electric Power is to be generated by installing a hydraulic turbine-generator at a site 70 m below the free surface of a large water reservoir that supplies water at a rate of 1500 kg/s. If the mechanical power output of the turbine is 800 kW and the electric power generation is 750 kW, determine the turbine efficiency and the combined turbine-generator efficiency. Neglect all other losses in the system which may occur due to fluid transfer in the pipes.Question #2:
Which model avatar generator will produce the most electric power with the least expense?
Question #3:
wireless energy transmission?
I need to design lamps that will glow when placed on a tray. The lamps must be electric. There must be no wires connecting the lamps to the power source. The tray can be connected to a source of electric power of up to 10MHz in frequency (common lab function generator).Please help me with my project
this is a college project.I am a freshman
Question #4:
What do i need for my BRICK making business Project?
I want to start a brick/ blocks making business in africa i have the money, but lack the expertise in this . My question is what do i need in other to have a full functioning small size brick making plant? Yesterday i was charting with a supplier of brick making machinery online, he send me information of a semi-auto machine that can produce 19000 pcs/per8hr and cost about $20450. I would like to buy Diesel Generator to generate electricity for this project as i had been using this before for a juice project. But when i ask him about power consumption he said the machine is an Electric hydraulic forming system, but i do not have idea what is hydraulic oil/liquid forming system. The machine has 27kw GRS power what this mean in terms of fuel consumption? thank you for your answer.Question #5:
the hydroelectric generator can supply upto 100 units of power per day at a constant marginal cost of 1 cent?
Per unit. the steam gen can supply any additional power that is needed at a constant marginal cost of 10 cents per unit. when electricty costs 10 cents per unit, demand is 200 units per day..How much should govt charge for electric power????????????
Question #6:
What portable indoor electric heater have you used and recommend? I'm looking for best affordable heating.?
When we lose power and go to generator during winter storms, we have to run extension cords so electric is best, Can't stand smell, mess and danger of kerosene. I've looked at portable heat-pumps but they don't work if it's cold outside and require exterior venting.Question #7:
On a large generator powered by a 6cyl. john dear diesel What would make the exciter rotor banding come loose?
I recently seperated the generator from the engine and replaced the rear main oil seal on the engine the electric generator was only moved back about 16-18 inches to access rear main seal. job went well with no problems after completeing job I turned down rpms to about 1000 rpm It was put back in service They use it to power up refer containers from the harbor. the next day I check it and they had turned up rpms to ??? as fast as it would run and 12 refer units running off it oh it's 480 volt well it ran for a week non stop and broke down and of corse it was my fault all i did was unbolt drive plate on front of rotor from flywheel of engine ..est to repair is 6,000 could this be my fault after it ran for a week or caused from hi rpms and heat related possibleyQuestion #8:
If Superman was tied to a giant electric generator, would he be able to power the whole world?
Question #9:
Want To Build A Home Hydro-Electric Power Source.?
Well, i will be visiting India next year to meet my family and a few of them live in the village where they have blackouts for half the day.Basically, they have lots of water, and I have the money. So to help them out a bit, i can change the flow of a tiny creek they have, it will give their village better irrigation too. And being India, you can do anything you like as long as it doesn't harm the big rivers.
So I can make a small resorvior. So what will I need to build lit? Is this all?
A wheel
An Alternator/Generator
Water
Pipe
Or will I need more things? Anything I am missing. I can get medium industrial versions in India cheap I know that for sure.
Question #10:
could a steam generator create enough power to also generate the steam ?
right imagine a steam powered generator if started via fuel could it transmit enough power to a transformer in order to then fuel an electric burner rather than fuelur thoughts are appreciated
steve HAHAHA solar power wind power........
Question #11:
Electric Power Engineer. Help!? kW Consumption?
We are operating a Central Utility Building, composed of chillers, pumps, and cooling tower.However during Emergency Grid (using Generators), Upon operation of the equipments, the kW consumption on the LVSG seems lower compared to the equipment motor ratings. During one simulation, the kW consumption of the equipments is 677 kW, whereas the chiller is indicating that it is operating at 90% part load (on chiller monitor screen), equivalent to total of 905 kW (all equipments including pumps and cooling towers running at 90% part load). In my tabulation of cumulative consumption, the chiller equivalent operating condition to the 677 kW is at 50% part load; pumps and cooling tower at 90%.
Why is that? Can anyone explain this phenomenon?
Presumably the chiller start up current is not reached, could it be the reason on lower kW consumption on LVSG compared to part load consumption on Chiller Monitor Screen?
What are other reason why motor rating, though the screen indicates it is operating at 90%, is operating at lower condition on the LSG?
HELP!!
Ok to simplify :
During Emergency Grid
- Low voltage switch gear monitored kW all equip. consumption = 677 kW
- Total consumption on Chiller and equipments as per rated motor power (chiller operating condition @90% ) by calculation = 905 kW
- Equivalent running condition to be near 677 kW as per LVSG is chiller running @ 50%, by calculation per motor rating.
- pumps and cooling tower running at constant ratings throughout, chiller does not. Chiller is 410 kW and can run on part load.
- Voltage is 465V and not dipping as per report
Of the 905 kW calculated total equipment motor load, 50% is consumed by pump, 10% is cooling tower, 40% is chiller.
pump = ~452 kW,
cooling tower = ~90.5 kW,
chiller = ~ 369 kW, (or 90% part load of 410 kW chiller motor rating which is showing on the chiller screen)
However
The actual kW consumption according to the LVSG is 677 kW, assume pumps and cooling tower operate at constant kW, at chiller 50% partload = 205 kW (or 50% of chiller 410 kW rating). Total kW is 748 kW, which is closest to 677 kW.
Can anyone help me understand this discrepancy
Question #12:
what can i do with a car battery and a generator?
bit of a random one. but wana start a project. i got a small generator its very light. and a car battery. the generator has a 12v output so can charge the battery.want to make some sort of go kart/buggy.
can use the battery to power an electric motor but what sort will i need and where do they come from.
can see how this looks very funny question but wanna have a bit of fun any ideas.
Question #13:
Realistic usage of all-solar system?
I'm thinking about buying this nice property with a one-room loft cabin for summer/getaways.. awesome in every respect except the fact that there's no electrical service for miles around. The electric company said it'll be $20,000 to get grid power over there, in addition to monthly bills.Let's say I have a refrigerator, desktop computer, lights, water pump (not always on), washing machine (not always on), and some fans for hot days.
How much wattage worth of solar panels, and what wattage of inverter, would I need to comfortably power it? I'll have a generator that I can use, say, once a week to power the heavier stuff, but I'll be using the rest of it daily.
Question #14:
Isn't Chevy volt a great car?
Volt is an electric vehicle with a range extender. Well, what does that mean? It means Volt runs on electricity from its battery, and then it runs on electricity it creates from gas. Let's assume you have a fully charged battery. Now, depending on the weather, the electrical features that are turned on and how you drive, you can drive up to 40 miles on the electricity stored in the battery — totally gas and emissions free. After that, you can plug it in to run 40 more miles and so on.The Volt propulsion system is powered exclusively by electricity. When its battery runs out of charge, it uses a small amount of gas in its onboard generator to create more electricity — enough to keep Volt going for 10 more miles
The starting price is just $42,000. That is a super low price compared to BMW 7 series, Mercedez Benz S-class, Audi A8, Lexus LS 400, etc etc -- which go well over $70,000. Only $42,000 -- its a steal!!!!!
SAVE MONEY
Electricity is an extremely environmentally friendly way to power a car - In other words, if you drive 40 miles or less in a day that could work out perfectly for you. All you have to do is plug in the socket to the wall for 10 hours, and it will be ready for up to 40 miles drive. Every 40 miles, just plug it in for 10 hours. You will get used to it.
In about ten hours, you'll have a fully charged Volt waiting for you, ready to go.
GM says the Volt's battery can last 40 miles, which should be more than enough distance for the average American each day.
On July 30, President Barack Hussein Obama visited the Detroit-Hamtramck assembly plant, where the Chevrolet Volt will be assembled. Chevrolet also announced it will increase the U.S. production capacity of the Volt by 50 percent in 2012 due to strong public interest.
A nice friendly economic engine with 92 horsepower with 3 cylinders. Small eco-friendly car which is compact and it can fit anywhere. 0 to 60 mph in 26 seconds, which is not even half minute.
Toyota Prius owners will be jealous of you! Buy American. Keep jobs in America!
Question #15:
Please help!!! Question about electric generators! Pls. Experts only. help?
A motor can work as a motor AND a generator if you can spin the metal stick on the top fast enough.Since generators use magnets , my question is that will a generator still generate electric power in the presence of an external magnetic field?
Your answer is greatly appreciated.
Many Thanks,
Aashman
Question #16:
Why Do PPl Hate on the Volt?
Isn't the Chevy Volt Great for Americans???Isn't The Chevy Volt Great?
Volt is an electric vehicle with a range extender. Well, what does that mean? It means Volt runs on electricity from its battery, and then it runs on electricity it creates from gas. Let's assume you have a fully charged battery. Now, depending on the weather, the electrical features that are turned on and how you drive, you can drive up to 40 miles on the electricity stored in the battery — totally gas and emissions free. After that, its gas-powered, range-extending generator automatically kicks in to provide electrical power. So Volt can go for several hundred additional miles, until you can plug it in or fill it up again.
The Volt propulsion system is powered exclusively by electricity. When its battery runs out of charge, it uses a small amount of gas in its onboard generator to create more electricity — enough to keep Volt going for hundreds of miles.
Chevrolet dealers in launch markets will start taking orders for the Chevrolet Volt. The net price for many of you will be $33,500 with the full U.S. federal tax credit of $7,500. Actual starting MSRP is $41,000
SAVE MONEY
Electricity is an extremely affordable way to power a car - the average American pays less than 12 cents per kilowatt hour. In other words, if you drive 40 miles or less that could work out to be about a $1.50 a day. To save even more, some utility companies recommend charging overnight for off-peak rates and may even offer incentives to customers who do so. And that can add up to big savings.
In about ten hours, you'll have a fully charged Volt waiting for you, ready to go. You can also install a 240V outlet, which can charge Volt in as little as four hours.
GM says the Volt's battery can last 40 miles, after which the gasoline engine kicks in to extend the driving range for another 300 miles. It hasn't divulged the size of Volt's gas tank, except to say it's less than 10 gallons.
On July 30, President Barack Obama visited the Detroit-Hamtramck assembly plant, where the Chevrolet Volt will be assembled. Chevrolet also announced it willl increase the U.S. production capacity of the Volt by 50 percent in 2012 due to strong public interest.
It Costs more for a Cup of Coffee then it does to Charge the Volt Fully per Day.
If Gas for cars goes up, which it should, then you wouldnt be as hurt in the Pockets.
Isn't This great for Americans?
Question #17:
Why is every Talking Crap about the Chevy Volt?
Volt is an electric vehicle with a range extender. Well, what does that mean? It means Volt runs on electricity from its battery, and then it runs on electricity it creates from gas. Let's assume you have a fully charged battery. Now, depending on the weather, the electrical features that are turned on and how you drive, you can drive up to 40 miles on the electricity stored in the battery — totally gas and emissions free. After that, its gas-powered, range-extending generator automatically kicks in to provide electrical power. So Volt can go for several hundred additional miles, until you can plug it in or fill it up again.The Volt propulsion system is powered exclusively by electricity. When its battery runs out of charge, it uses a small amount of gas in its onboard generator to create more electricity — enough to keep Volt going for hundreds of miles.
Chevrolet dealers in launch markets will start taking orders for the Chevrolet Volt. The net price for many of you will be $33,500 with the full U.S. federal tax credit of $7,500. Actual starting MSRP is $41,000
SAVE MONEY
Electricity is an extremely affordable way to power a car - the average American pays less than 12 cents per kilowatt hour. In other words, if you drive 40 miles or less that could work out to be about a $1.50 a day. To save even more, some utility companies recommend charging overnight for off-peak rates and may even offer incentives to customers who do so. And that can add up to big savings.
In about ten hours, you'll have a fully charged Volt waiting for you, ready to go. You can also install a 240V outlet, which can charge Volt in as little as four hours.
GM says the Volt's battery can last 40 miles, after which the gasoline engine kicks in to extend the driving range for another 300 miles. It hasn't divulged the size of Volt's gas tank, except to say it's less than 10 gallons.
On July 30, President Barack Obama visited the Detroit-Hamtramck assembly plant, where the Chevrolet Volt will be assembled. Chevrolet also announced it willl increase the U.S. production capacity of the Volt by 50 percent in 2012 due to strong public interest.
It Costs more for a Cup of Coffee then it does to Charge the Volt Fully per Day.
If Gas for cars goes up, which it should, then you wouldnt be as hurt in the Pockets.
Isn't This great for Americans?
Question #18:
Isn't the Chevy Volt Great for Americans???
Isn't The Chevy Volt Great?Volt is an electric vehicle with a range extender. Well, what does that mean? It means Volt runs on electricity from its battery, and then it runs on electricity it creates from gas. Let's assume you have a fully charged battery. Now, depending on the weather, the electrical features that are turned on and how you drive, you can drive up to 40 miles on the electricity stored in the battery — totally gas and emissions free. After that, its gas-powered, range-extending generator automatically kicks in to provide electrical power. So Volt can go for several hundred additional miles, until you can plug it in or fill it up again.
The Volt propulsion system is powered exclusively by electricity. When its battery runs out of charge, it uses a small amount of gas in its onboard generator to create more electricity — enough to keep Volt going for hundreds of miles.
Chevrolet dealers in launch markets will start taking orders for the Chevrolet Volt. The net price for many of you will be $33,500 with the full U.S. federal tax credit of $7,500. Actual starting MSRP is $41,000
SAVE MONEY
Electricity is an extremely affordable way to power a car - the average American pays less than 12 cents per kilowatt hour. In other words, if you drive 40 miles or less that could work out to be about a $1.50 a day. To save even more, some utility companies recommend charging overnight for off-peak rates and may even offer incentives to customers who do so. And that can add up to big savings.
In about ten hours, you'll have a fully charged Volt waiting for you, ready to go. You can also install a 240V outlet, which can charge Volt in as little as four hours.
GM says the Volt's battery can last 40 miles, after which the gasoline engine kicks in to extend the driving range for another 300 miles. It hasn't divulged the size of Volt's gas tank, except to say it's less than 10 gallons.
On July 30, President Barack Obama visited the Detroit-Hamtramck assembly plant, where the Chevrolet Volt will be assembled. Chevrolet also announced it willl increase the U.S. production capacity of the Volt by 50 percent in 2012 due to strong public interest.
It Costs more for a Cup of Coffee then it does to Charge the Volt Fully per Day.
If Gas for cars goes up, which it should, then you wouldnt be as hurt in the Pockets.
Isn't This great for Americans?
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Question #19:
Simple Electric Circuit Questions?
Alright, i will have to do a simple picture/loop thingy so you under stand............................------->
----------------Motor-------------
|....................................l
|....................................l
|....................................l
Diode............................l
|....................................l
|....................................l
|....................................l
----------------other stuff-------
Motor: 2400 V generator
Other stuff (just a bunch of other pieces)
Diode (to prevent electricity returning) is 1amp 3000VIP
does this setup work if i do not power anything more than 3000V OR more than what the generator generates? if i have batteries, do i add their volts to the generator volts?
separate stuff...
What I want to know is if i am right about the generator. as a motor it generates 3HP of work (2400Watts) and runs at 1750 RPM, does that mean if i spin it at the normal rpm (with the diode so that it can not spin itself) it will produce 2400V of energy?
does the Generator produce roughly doubly the amount of energy if i spin it at double the speed of the regular RPM?
The diode will work fine so long as i use less than the amount i produce correct (to keep it under 1amp)? so if i had a 2amp 3000V diode i could go up to powering something that is 6000V right? (and with the above, that means the MAX energy i could produce with generator is 2900 correct?)
if you have any questions on my questions let me know and i will edit,
answer only what you KNOW please...
THANK YOU SO MUCH (if you answered ANY of them) but i am mostly concerned about how much volts the generator will make...
sorry, by VIP i meant PIV
Question #20:
Wireless Energy Transfer?
My engineering skills are junk. It's been too long. I heard a story about a guy using an induction generator to yank power off a high voltage tower. The story says that the line was 756kV, polyphasic. It also claims that he was mad at the electric company (what's new). Those kinds of transmission lines are usually at least like 200 feet above the ground, right? The story goes that this ol' boy managed to build a barn on the easement and put a large induction generator right under the high tension, high power transmission lines. The structure couldn't have been any taller than around 20 feet or so without inviting a whole bunch of questions.OK, now for the question, how big would this generator have to be? Good lord, even at those voltages fighting against the inverse square law would be a beast. It would have to be huge to power a standard sized house (farm in this case). This story is junk, right?
The best way would be to build a toroidal coil induction scheme around the wires but phasic imbalance would mess with the induction and the power company might ask a whole bunch of questions about you building a large magnetic doughnut 200 feet in the air around their power lines.
This story can't be true. The principles and basic science are there, but the engineering isn't, right? This story has to be bunk?
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