Questions tagged [power-generation]
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Standards for the sign of the power factor; IEC and IEEE; is there an ANSI standard?
Working with some power factor measurement, this article (reference: https://www.se.com/ww/en/faqs/FA212521/) has this interesting bit:
Issue: Understanding and interpreting the sign of a power factor (PF) value.
Resolution
A lagging power factor…
asylumax
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why can't you hybridise an internal combustion engine with a steam turbine
According to the internet, an internal combustion engine is powered by the pressure differential when the fuel expands into gas and has a maximum thermal efficiency of 50%. And a steam turbine is powered by the temperature differential when the fuel…
Lorry Laurence mcLarry
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Would it be possible to generate electricity from continental drift?
It definitely wouldn't be practical compared to other sources of energy, but given currently plausible technology, would it be theoretically possible to use the movement of tectonic plates (as in continental drift, not earthquakes) to generate…
A Curious Inquirer
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Nuclear, waste heat stirling applications
Could the waste heat normally expelled from nuclear plants run low temperature stirling engines or does it need a specific temperature threshold?
LazyReader
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How to determine the efficacy and potential energy of hydro power energy storage?
The project
I'm thinking about building a cheap DIY hydro energy storage (like a battery) system. I can build it but so far I can't really figure out the calculations to validate my idea and where to start mathematically.
I'm considering doing a…
Bob Ortiz
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How to match a synchronous generator with a powered shaft?
Given is a shaft powered by a steam turbine that rotates unloaded (i.e without generator) at $ \omega $ rad/s and a torque of $T$ Nm. How would one match a generator to extract power requiring a certain torque/rpm such that the shaft does not slow…
jessegerritsen
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Wind generator and heater (high power load) connected directly
I am thinking about the building house heating system like this:
Outside my house I put 12V 1000W wind turbine, for example, like this.
Inside my house I connect directly without any converter/adapter/controller/battery 12V heater(s) with total…
Zlelik
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Solar bimetal/dilation power generator
What attempts are there been at converting on Earth's surface, night/day temperature differences, so that the dilation of a large bimetal is converted into mechanical work ?
At small scale it would look like a bimetal strip that drives a linear gear…
user721108
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Most efficient electricity generation in a wide flow of water
I'm wondering what the best method is for generating electricity in a wide river. The assumptions here is that it's a strong flowing river. It is very wide and we're allowed to put an electricity generating device in the middle. It may not restrict…
Trioxidane
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Would the below thermal generator work properly and provide surplus energy?
Since thermoelectric generators make electricity through thermal flux, could a device that mixes NaOH and HCl on one side (heat) and Ba(OH)2•8H2O and NH4SCN (cold) be efficient? Could it produce more energy than it consumes?
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Measurement of actual carbon dioxide mass emitted from a diesel engine
I am looking for a solution to measure the actual total mass of carbon dioxide (CO2) emitted from a diesel engine used for power generation. Infrared CO2 sensors generally measure the gas concentration, describing the amount of gas by volume of the…
AEW
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Load/power shedding for DIY power generation - how does it work?
I am putting together a simple DIY solar generation unit for an off grid cabin.
The cabin will "pull" (i.e. present) a variable load to the generator over a given time period.
Suppose I have this decision tree:
Apologies for the pseudocode, but I…
Homunculus Reticulli
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How are a Horizontal Axis Wind Turbine's blades joined to the hub, allowing them to rotate?
I know its a basic question for this site.
But I couldn't find the answer on google so I beseech thee.
Maalik
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