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son hub for the brompton?

Old 02-03-10, 11:09 AM
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So u beside carrying drinking water, u will also carry gallons of water along with rice cooker on ur tour? about how many gallons and how many lbs of rice will u be carrying on ur bike?

Last edited by vincentnyc; 02-03-10 at 11:38 AM.
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Old 02-03-10, 12:21 PM
  #27  
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ok I now know what a rice cooker is
the ones I found have like 120 volts and 5 to 10 amps
That would suck a 12 volt Car battery with inverter empty before the rice is even warm
I can only imageine that you need 20 ( twenty !!) 6 volt generators in line and drive like a maniac to get that thing warm .... for a couple of minutes before one of those sidewall generators shakes loose and goes into the spokes ....
sidewall generators rub off the sidewall of the tire as well, so one would expect to have pleanty rear tires together with all that water and rice .....
Water .. you could take a survival kit which cleans bad water .. I think you have to pump that for an hour to get one cup of good water .....
that would give some workout for the arms while you sitting on the bike and peddling like crazy ....

Chucky ... I am making fun of you ... I am sorry bouut that
just take a small spiritus or gasoline cooker like Climbers take and you should be golden
:-)

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Old 02-03-10, 12:23 PM
  #28  
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Originally Posted by vincentnyc
So u beside carrying drinking water, u will also carry gallons of water along with rice cooker on ur tour? about how many gallons and how many lbs of rice will u be carrying on ur bike?
You'll need a lot more water for drinking than making rice. Besides going somewhere where you don't have access to water is crazy and stupid. Even wild animals are smart enough not to do that.

10 pounds of rice should feed you for a month if you don't eat anything else and it doesn't need to be refrigerated or anything. I don't know where you think you're going to tour where you'll be near a restaurant for every meal, but the rice will be a lot lighter and more compact than almost anything else you could bring with you to eat.

What's it to you anyway? If you want to go on a tour of all the McDonald's in the country then be my guest.
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Old 02-03-10, 12:35 PM
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Originally Posted by chucky
You'll need a lot more water for drinking than making rice. Besides going somewhere where you don't have access to water is crazy and stupid. Even wild animals are smart enough not to do that.

10 pounds of rice should feed you for a month if you don't eat anything else and it doesn't need to be refrigerated or anything. I don't know where you think you're going to tour where you'll be near a restaurant for every meal, but the rice will be a lot lighter and more compact than almost anything else you could bring with you to eat.

What's it to you anyway? If you want to go on a tour of all the McDonald's in the country then be my guest.
Oh getting touchy aren't we? I thought I just like to pick ur brain. So tell us how many gallons of water u will be carrying total for ur 10 lbs of rice? And not only u need water to cook the rice, u need water to wash/rinse the rice unless u wanna eat dirty rice. And not every place u go have access to water. Where do u usually tour at? If u need to carry rice, that mean u will be touring in the country side or some remote area.
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Old 02-03-10, 01:24 PM
  #30  
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Originally Posted by brakemeister
ok I now know what a rice cooker is
the ones I found have like 120 volts and 5 to 10 amps
That would suck a 12 volt Car battery with inverter empty before the rice is even warm
I can only imageine that you need 20 ( twenty !!) 6 volt generators in line and drive like a maniac to get that thing warm .... for a couple of minutes before one of those sidewall generators shakes loose and goes into the spokes ....
sidewall generators rub off the sidewall of the tire as well, so one would expect to have pleanty rear tires together with all that water and rice .....
Water .. you could take a survival kit which cleans bad water .. I think you have to pump that for an hour to get one cup of good water .....
that would give some workout for the arms while you sitting on the bike and peddling like crazy ....

Chucky ... I am making fun of you ... I am sorry bouut that
just take a small spiritus or gasoline cooker like Climbers take and you should be golden
Worst case scenario you need to heat about 1/3 cup of water to boiling for a rice meal. This takes about 26kJ of energy. The E-werk is rated for up to 16W. So in the worst case if you ride with your dynamo hooked to a rice cooker you can have a meal roughly every 7 hours when riding.

However this assumes you actually need to heat the water to boiling like you do with a 120V rice cooker that cooks in 5 minutes. But if your a cook you know that the longer you let something cook the lower the temperature needs to be. People cook rice (and pasteurize water) in 2-4 hours with solar ovens which produce much less power. So I think it's safe to say that the rice will cook in under 2 hours with the dynamo. Also, this assumes you use the E-werk, but a resistive heating element is just about the simplest and most efficient electrical device possible so you can just hook up directly to the AC dynamo and probably get much more than 16W, especially if the wheel is off the ground and the only resistance is coming from the dynamo. So you cook the rice while riding and if it's not done when you're ready to stop you can finish it off by pedaling with the wheel off the ground.

Comparing to a 120V appliance meant to be plugged into the wall is like comparing regular 60W light bulbs to your bike dynamo. It's just ignorant.

Making fun won't make you smarter nor will it feed you.

Originally Posted by vincentnyc
Oh getting touchy aren't we? I thought I just like to pick ur brain. So tell us how many gallons of water u will be carrying total for ur 10 lbs of rice? And not only u need water to cook the rice, u need water to wash/rinse the rice unless u wanna eat dirty rice. And not every place u go have access to water. Where do u usually tour at? If u need to carry rice, that mean u will be touring in the country side or some remote area.
You can wash your rice before you pack it or you can buy prewashed rice. You need 1 cup of water per day to cook your rice (1 cup uncooked rice per day). You need a lot more than that to drink. Therefore, if you have enough water to drink then you have enough water to make rice.
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Old 02-03-10, 02:56 PM
  #31  
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ok I loose
you go ahead and cook that rice while you are riding ...
makes all sense

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Old 02-04-10, 08:16 AM
  #32  
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Okay, I know we're talking about electricity generated by bicycle dynamos here, and I assume the idea of a rice cooker is to some degree facetious. Nonetheless, taking the question "how can I cook my rice?" seriously for a moment:

If I were going on tour in a place with ample water but without regular resupply of food or fuel; in short, a tour on which I would be required to live on grain that I carry with me; I would not chose to cook rice at all. Malted or sprouted wheat (or barley, spelt, etc.) would be fine. Soak a cup of the whole wheat grain ("berries", I don' t know why they call them that, they're not berries at all) in water, changing the water every day for several days, until the grain germinates; then eat it. No cooking is required. Yes, it takes a while, so you'd have to have several jars of it in the pipeline, as it were; but malted/germinated wheat would be just as nutritious as rice. When you change the water, you can of course drink it, to be sure to catch all the nutrients. I'm sure it is equally possible to malt or sprout brown rice, but I am less sure that would be so good to eat; I'd experiment a bit before committing myself to such a diet.
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Old 02-04-10, 04:09 PM
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Originally Posted by rhm
a place with ample water but without regular resupply of food or fuel; in short, a tour on which I would be required to live on grain that I carry with me; I would not chose to cook rice at all. Malted or sprouted wheat (or barley, spelt, etc.) would be fine. Soak a cup of the whole wheat grain ("berries", I don' t know why they call them that, they're not berries at all) in water, changing the water every day for several days, until the grain germinates; then eat it. No cooking is required. Yes, it takes a while, so you'd have to have several jars of it in the pipeline, as it were; but malted/germinated wheat would be just as nutritious as rice. When you change the water, you can of course drink it, to be sure to catch all the nutrients. I'm sure it is equally possible to malt or sprout brown rice, but I am less sure that would be so good to eat; I'd experiment a bit before committing myself to such a diet.
Some good information here. Thanks for sharing. But hot rice has to be the most delicious means of surviving at a subsistence level.
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Old 02-04-10, 04:18 PM
  #34  
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I also thought cooking rice with a dynamo is a really impossible, at most completely impractical, idea; so before shooting my mouth off I made some simple calculations.

With a 300ml pot, insulated on all sides with 1cm thick polystyrene foam, a 3W dynamo will heat the full pot of water to 80degC in a bit over 30min. That seems quite doable. The water won't get any hotter than 80degC with a 3W dynamo but assuming you could cook rice longer at lower temperature, that is fine. With a 16W system that becomes much more possible again.

So, I changed my mind - it seems like something to throw some effort at to test the idea!
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Old 02-04-10, 05:01 PM
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Originally Posted by jur
I also thought cooking rice with a dynamo is a really impossible, at most completely impractical, idea; so before shooting my mouth off I made some simple calculations.

With a 300ml pot, insulated on all sides with 1cm thick polystyrene foam, a 3W dynamo will heat the full pot of water to 80degC in a bit over 30min. That seems quite doable. The water won't get any hotter than 80degC with a 3W dynamo but assuming you could cook rice longer at lower temperature, that is fine. With a 16W system that becomes much more possible again.

So, I changed my mind - it seems like something to throw some effort at to test the idea!
30 min? It takes 4.2 Joules to heat 1 gram of water 1 degree celsius. So to heat 300g 60 degrees it takes 75600 J. There are 5400 J delivered by a 3W source in 30 min. You need more like 7 hours, but it's still doable because 300ml of water makes enough rice for an entire day. You only need like 100ml for a meal, so we're down to 140 minutes, and if we use a 16W source we're down to about 25 minutes of heating (figure an hour total cooking time to satisfy murphy's law).

I think I'm going to use one of these:

or maybe one of these if I decide it's more expedient to cook for the whole day at once:
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Old 02-04-10, 05:42 PM
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Originally Posted by chucky
30 min? It takes 4.2 Joules to heat 1 gram of water 1 degree celsius. So to heat 300g 60 degrees it takes 75600 J. There are 5400 J delivered by a 3W source in 30 min. You need more like 7 hours...
Well I screwed that up somewhere... good thing I don't do calcs for a living!

Ah crap I do!
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Old 02-04-10, 09:01 PM
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so any1 have a link of the specs of this shimano hub that is supposed to be coming out in march?
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Old 02-04-10, 11:01 PM
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Check out the eastern European staple, kasha, buckwheat groats. Much more sustaining than plain rice. Easy to cook, too. If you pre-soak it the cooking time can be greatly reduced.

Last edited by werewolf; 02-04-10 at 11:05 PM.
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Old 02-05-10, 10:02 AM
  #39  
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Originally Posted by werewolf
If you pre-soak it the cooking time can be greatly reduced.
Interesting point; wouldn't it apply to any grain? If it's going to take many hours to heat the water, the rice in the cooker would effectively be soaking a good long while no matter what.

Experiment, guys, and report back!
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Old 02-06-10, 03:30 AM
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I have used the 6 & 12 volt plug in kettles before when I was a freelance mechanical engineering fitter travelling and working across Europe .... they are next to useless!

However, I do enjoy camping and have undertaken 10-14 days cycling holidays & expeditions, and for boiling water quickly and cooking a meal for 1, 2 or 3 persons the Kelly Kettle takes some beating. https://kellykettle.com/ in mine, I have boiled 2.5 (UK) pints of water in 3 minutes using a handful of shredded paper, I have cooked meals for 3 of us, burning either; twigs, dried grass, bark, wood chips and off-cuts from a saw mill, BBQ charcoal & brickettes. it will even burn dried animal dung. It is light weight, easily stored and carried, and very quick and efficent to use, mine goes everywhere with me now when we have days out, camping trips and cycling tours.

I admire you for wanting to power a rice cooker from a bicycle dynamo, but know that you are following the wrong path there. As a mechanical engineer and bicycle advocate my heart says " go for it man" but as an ex-military man of many years service in most of the world's severest conditions, who knows the benefit and moral boost that a quickly made hot drink or a meal can give to a person, especially if you can immediately have a 2nd one, my advice for you is to follow the conventional path of using a light weight stove.
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Old 02-06-10, 11:39 AM
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Yes, RHM, I think it would apply to all grains. Buckwheat groats, by the way, aren't really grains. They're fruit seeds or something.

I used to do a lot of backpacking so I'd choose foods that required no cooking or were quick and easy to prepare and clean up afterwards. You can find a lot on this subject on backpacking forums and in backpacking books

Gareth - Have you ever seen the Zip Ztove, now called the Sierra Stove? It was my old favorite.
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