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One horsepower is 746 watts. That is gonna take a big guy to turn that generator to full power. IIRC, a person in decent shape can generate around 1/5th of a horsepower for sustained periods (i.e., a few hours). Assuming perfect mechanical and electrical conversion efficiency, that's roughly 150 watts. |
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Having a back up power source that does not require fuel is key to the usefulness of this product. If you were watching the news during Hurricane Sandy, as I was, you noticed that both battery and fuel supplies were gone within 24 to 48 hours. Unless you have a fuel storage tank ready for a disaster, with hundreds of gallons of fuel, then your gasoline power generator will not last you more than a few days during an emergency. lol. http://www.ar15.com/forums/t_10_17/661411_Sandy____12_days_without_power__what_worked__what_didn_t____.html ps: an adult male can make about 60 to 80W (about 0.1HP) for about 1hr before fatiguing. even a small submersible well pump is 1/2HP, requiring about 500W to run. moreover, the conversion efficiency from human->generator->motor->pumping water is on the order of 50%, so around 50% of the power you produced at the generator is lost forever. meanwhile, your human powered generator didn't come free. the tradeoff for converting calories to electrical power is not a good one. to produce that 1/10th of a horsepower for any meaningful period will require a lot of food intake. and during SHTF, i doubt that there will be a lot of "spare calories" just laying around. so the weak link in this idea is the fact that to generate appreciable power, one has to consume large quantities of food. for example, it's not uncommon for Tour de France riders to be on 8000 calorie per day "diets" for the entire month. in a SHTF situation, i value conserving food over having electrical power. i would not "waste" food by inefficiently converting it to electricity. related, http://online.wsj.com/news/articles/SB117270857656222691?mod=blogs Like many of these projects, the California Fitness setup isn't going to light up the Hong Kong skyline or even power the club's own air conditioning. The gym chain has rigged up 13 running machines at one of its clubs here. When all of them are in use, the power generated amounts to about 300 watts, roughly enough to run three 27-inch television sets, five 60-watt light bulbs or several hundred video iPods. derp. ar-jedi |
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lol. http://www.ar15.com/forums/t_10_17/661411_Sandy____12_days_without_power__what_worked__what_didn_t____.html ps: an adult male can make about 60 to 80W (about 0.1HP) for about 1hr before fatiguing. even a small submersible well pump is 1/2HP, requiring about 500W to run. moreover, the conversion efficiency from human->generator->motor->pumping water is on the order of 50%, so around 50% of the power you produced at the generator is lost forever. meanwhile, your human powered generator didn't come free. the tradeoff for converting calories to electrical power is not a good one. to produce that 1/10th of a horsepower for any meaningful period will require a lot of food intake. and during SHTF, i doubt that there will be a lot of "spare calories" just laying around. so the weak link in this idea is the fact that to generate appreciable power, one has to consume large quantities of food. for example, it's not uncommon for Tour de France riders to be on 8000 calorie per day "diets" for the entire month. in a SHTF situation, i value conserving food over having electrical power. i would not "waste" food by inefficiently converting it to electricity. related, http://online.wsj.com/news/articles/SB117270857656222691?mod=blogs derp. ar-jedi Quoted:
Having a back up power source that does not require fuel is key to the usefulness of this product. If you were watching the news during Hurricane Sandy, as I was, you noticed that both battery and fuel supplies were gone within 24 to 48 hours. Unless you have a fuel storage tank ready for a disaster, with hundreds of gallons of fuel, then your gasoline power generator will not last you more than a few days during an emergency. lol. http://www.ar15.com/forums/t_10_17/661411_Sandy____12_days_without_power__what_worked__what_didn_t____.html ps: an adult male can make about 60 to 80W (about 0.1HP) for about 1hr before fatiguing. even a small submersible well pump is 1/2HP, requiring about 500W to run. moreover, the conversion efficiency from human->generator->motor->pumping water is on the order of 50%, so around 50% of the power you produced at the generator is lost forever. meanwhile, your human powered generator didn't come free. the tradeoff for converting calories to electrical power is not a good one. to produce that 1/10th of a horsepower for any meaningful period will require a lot of food intake. and during SHTF, i doubt that there will be a lot of "spare calories" just laying around. so the weak link in this idea is the fact that to generate appreciable power, one has to consume large quantities of food. for example, it's not uncommon for Tour de France riders to be on 8000 calorie per day "diets" for the entire month. in a SHTF situation, i value conserving food over having electrical power. i would not "waste" food by inefficiently converting it to electricity. related, http://online.wsj.com/news/articles/SB117270857656222691?mod=blogs Like many of these projects, the California Fitness setup isn't going to light up the Hong Kong skyline or even power the club's own air conditioning. The gym chain has rigged up 13 running machines at one of its clubs here. When all of them are in use, the power generated amounts to about 300 watts, roughly enough to run three 27-inch television sets, five 60-watt light bulbs or several hundred video iPods. derp. ar-jedi LOL-I knew I'd get some factual-math answers from yall soon enough.  I don't see how they get away with advertising this bullshit, though. Some sheeple is going to buy this voodoo-tech and think they'll put their kids to work when it hits the fan.
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IIRC, a person in decent shape can generate around 1/5th of a horsepower for sustained periods (i.e., a few hours). Assuming perfect mechanical and electrical conversion efficiency, that's roughly 150 watts. Quoted:
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One horsepower is 746 watts. That is gonna take a big guy to turn that generator to full power. IIRC, a person in decent shape can generate around 1/5th of a horsepower for sustained periods (i.e., a few hours). Assuming perfect mechanical and electrical conversion efficiency, that's roughly 150 watts. Ya. More reasonably a decent output for longterm is about 1/10 horsepower, or about 75 watts.... throw in some losses and maybe 50 watts 
http://www.armyradio.com/arsc/customer/product.php?productid=1596&cat=0&page=1 "GN-58 Field Hand Crank Generator for use with BC-1306 and GRC-9 radio sets. Outputs 425 VDC @115ma, 105 VDC @32ma, 6.3 VDC @2.5A, 1.4 VDC @465ma. The kit comes complete with Hand Cranks, Legs and Seat." 425 VDC @115ma = 48 watts 105 VDC @32ma = 34 watts 6.3 VDC @2.5A = 16 watts quick story...a science minded guy decided his kids needed more exercise so he wired a peddle powered generator so the only way they could watch tv was peddling the generator. Result?? They quit watching tv. |
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Ya. More reasonably a decent output for longterm is about 1/10 horsepower, or about 75 watts.... throw in some losses and maybe 50 watts http://www.armyradio.com/arsc/files/product_pictures/gn-58generator.jpg http://www.armyradio.com/arsc/customer/product.php?productid=1596&cat=0&page=1 "GN-58 Field Hand Crank Generator for use with BC-1306 and GRC-9 radio sets. Outputs 425 VDC @115ma, 105 VDC @32ma, 6.3 VDC @2.5A, 1.4 VDC @465ma. The kit comes complete with Hand Cranks, Legs and Seat." 425 VDC @115ma = 48 watts 105 VDC @32ma = 34 watts 6.3 VDC @2.5A = 16 watts quick story...a science minded guy decided his kids needed more exercise so he wired a peddle powered generator so the only way they could watch tv was peddling the generator. Result?? They quit watching tv. Quoted:
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One horsepower is 746 watts. That is gonna take a big guy to turn that generator to full power. IIRC, a person in decent shape can generate around 1/5th of a horsepower for sustained periods (i.e., a few hours). Assuming perfect mechanical and electrical conversion efficiency, that's roughly 150 watts. Ya. More reasonably a decent output for longterm is about 1/10 horsepower, or about 75 watts.... throw in some losses and maybe 50 watts http://www.armyradio.com/arsc/files/product_pictures/gn-58generator.jpg http://www.armyradio.com/arsc/customer/product.php?productid=1596&cat=0&page=1 "GN-58 Field Hand Crank Generator for use with BC-1306 and GRC-9 radio sets. Outputs 425 VDC @115ma, 105 VDC @32ma, 6.3 VDC @2.5A, 1.4 VDC @465ma. The kit comes complete with Hand Cranks, Legs and Seat." 425 VDC @115ma = 48 watts 105 VDC @32ma = 34 watts 6.3 VDC @2.5A = 16 watts quick story...a science minded guy decided his kids needed more exercise so he wired a peddle powered generator so the only way they could watch tv was peddling the generator. Result?? They quit watching tv. Or, you know, just get a windmill or watermill ... |
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Ya. More reasonably a decent output for longterm is about 1/10 horsepower, or about 75 watts.... throw in some losses and maybe 50 watts http://www.armyradio.com/arsc/files/product_pictures/gn-58generator.jpg http://www.armyradio.com/arsc/customer/product.php?productid=1596&cat=0&page=1 "GN-58 Field Hand Crank Generator for use with BC-1306 and GRC-9 radio sets. Outputs 425 VDC @115ma, 105 VDC @32ma, 6.3 VDC @2.5A, 1.4 VDC @465ma. The kit comes complete with Hand Cranks, Legs and Seat." 425 VDC @115ma = 48 watts 105 VDC @32ma = 34 watts 6.3 VDC @2.5A = 16 watts quick story...a science minded guy decided his kids needed more exercise so he wired a peddle powered generator so the only way they could watch tv was peddling the generator. Result?? They quit watching tv. Quoted:
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One horsepower is 746 watts. That is gonna take a big guy to turn that generator to full power. IIRC, a person in decent shape can generate around 1/5th of a horsepower for sustained periods (i.e., a few hours). Assuming perfect mechanical and electrical conversion efficiency, that's roughly 150 watts. Ya. More reasonably a decent output for longterm is about 1/10 horsepower, or about 75 watts.... throw in some losses and maybe 50 watts http://www.armyradio.com/arsc/files/product_pictures/gn-58generator.jpg http://www.armyradio.com/arsc/customer/product.php?productid=1596&cat=0&page=1 "GN-58 Field Hand Crank Generator for use with BC-1306 and GRC-9 radio sets. Outputs 425 VDC @115ma, 105 VDC @32ma, 6.3 VDC @2.5A, 1.4 VDC @465ma. The kit comes complete with Hand Cranks, Legs and Seat." 425 VDC @115ma = 48 watts 105 VDC @32ma = 34 watts 6.3 VDC @2.5A = 16 watts quick story...a science minded guy decided his kids needed more exercise so he wired a peddle powered generator so the only way they could watch tv was peddling the generator. Result?? They quit watching tv. Always thought those were cool... |
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Ya. More reasonably a decent output for longterm is about 1/10 horsepower, or about 75 watts.... throw in some losses and maybe 50 watts http://www.armyradio.com/arsc/files/product_pictures/gn-58generator.jpg http://www.armyradio.com/arsc/customer/product.php?productid=1596&cat=0&page=1 "GN-58 Field Hand Crank Generator for use with BC-1306 and GRC-9 radio sets. Outputs 425 VDC @115ma, 105 VDC @32ma, 6.3 VDC @2.5A, 1.4 VDC @465ma. The kit comes complete with Hand Cranks, Legs and Seat." 425 VDC @115ma = 48 watts 105 VDC @32ma = 34 watts 6.3 VDC @2.5A = 16 watts quick story...a science minded guy decided his kids needed more exercise so he wired a peddle powered generator so the only way they could watch tv was peddling the generator. Result?? They quit watching tv. Quoted:
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One horsepower is 746 watts. That is gonna take a big guy to turn that generator to full power. IIRC, a person in decent shape can generate around 1/5th of a horsepower for sustained periods (i.e., a few hours). Assuming perfect mechanical and electrical conversion efficiency, that's roughly 150 watts. Ya. More reasonably a decent output for longterm is about 1/10 horsepower, or about 75 watts.... throw in some losses and maybe 50 watts http://www.armyradio.com/arsc/files/product_pictures/gn-58generator.jpg http://www.armyradio.com/arsc/customer/product.php?productid=1596&cat=0&page=1 "GN-58 Field Hand Crank Generator for use with BC-1306 and GRC-9 radio sets. Outputs 425 VDC @115ma, 105 VDC @32ma, 6.3 VDC @2.5A, 1.4 VDC @465ma. The kit comes complete with Hand Cranks, Legs and Seat." 425 VDC @115ma = 48 watts 105 VDC @32ma = 34 watts 6.3 VDC @2.5A = 16 watts quick story...a science minded guy decided his kids needed more exercise so he wired a peddle powered generator so the only way they could watch tv was peddling the generator. Result?? They quit watching tv. My team and I have used those before with a low band radio with a long line antenna, It is more work than you want to do for very long. |
BTW, where did the static bag guys go? I was hoping for some more 'tainment.