Recent content by Deathz
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Measuring Power output of DC generator
How should I compute the efficiency? Is this correct? % = YgQh/Pout Where Pout = Voltage x current Y=density G=gravity h=head Q= flow rate Note: I don't need to have a high efficiency of the turbine. What I need is the efficiency of the generator itself. How do I calculate the electrical...- Deathz
- Post #39
- Forum: Electrical Engineering
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Measuring Power output of DC generator
Like for example, I will use a drill in order to control na Input RPM, how should I compute the power input?- Deathz
- Post #35
- Forum: Electrical Engineering
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Measuring Power output of DC generator
If I'm not using Archimedes as a reference, how can I determine the power input based on the input RPM?- Deathz
- Post #34
- Forum: Electrical Engineering
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Measuring Power output of DC generator
If I am going to compare the efficiency of the two? What should be the constant parameter sir? Is it okay if i will base on the flow rate?- Deathz
- Post #32
- Forum: Electrical Engineering
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Measuring Power output of DC generator
Okay, once the voltage decreases, the current also increases right? So it is important to have a constant RPM between different load?- Deathz
- Post #31
- Forum: Electrical Engineering
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Measuring Power output of DC generator
Do you have a link, a book or a tutorial on how to get the efficiency of a generator having a hydro prime mover?- Deathz
- Post #30
- Forum: Electrical Engineering
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Measuring Power output of DC generator
But if I will use a higher resistance load to get the voltage into half, the turbine will stop rotating.- Deathz
- Post #29
- Forum: Electrical Engineering
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Measuring Power output of DC generator
Can I use a resistor as a load?- Deathz
- Post #28
- Forum: Electrical Engineering
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Measuring Power output of DC generator
So far i have learned that in order To calculate the power input, I will use the P=mgh, right? I still don't know what load should I used with 4.7 volts opej circuit output- Deathz
- Post #26
- Forum: Electrical Engineering
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Measuring Power output of DC generator
The motor have 4 poles- Deathz
- Post #25
- Forum: Electrical Engineering
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Measuring Power output of DC generator
There is an air gap, the magnet have the same size with the orginal magnet since I bought a customize one.- Deathz
- Post #24
- Forum: Electrical Engineering
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Measuring Power output of DC generator
I think it's okay to have a low volts since I am just going to compare the two. The problem is I don't know how to correctly get the input and output power in order to compare them- Deathz
- Post #22
- Forum: Electrical Engineering
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Measuring Power output of DC generator
The LED of the flashlight gets busted when I manually rotate the turbine and the voltage reaches above 5V, which makes me think that I am using an incorrect load. Honestly, the maximum voltage when I use a drill is 14V+ for the modified version and 10V+ for the unmodified one. Unfortunately...- Deathz
- Post #21
- Forum: Electrical Engineering
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Measuring Power output of DC generator
When I had my Data gathering, I use a flashlight as a Load in order to get the current but the voltage output would only give as what I've said in the thread. That is why I'm asking the correct way of getting the power output by asking of the correct load to use or the correct computation of the...- Deathz
- Post #20
- Forum: Electrical Engineering
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Measuring Power output of DC generator
I tested it using a drill as a prime mover and the output current and voltage increased. My problem now is to answer the objectives of my thesis, which is to compare the efficiency of the two generators.- Deathz
- Post #19
- Forum: Electrical Engineering