coffee-maker

so..why do you want to know?

Enough coffee (or tea for that matter) to satisfy CR4 needs?

Please supply more info.

Number and size of the heater elements?

Temperature of the water?

Size of the reservoir?

concentric or eccentric reducer?

90 or 45 degree elbow? (and radius )

Where are the elements?

In the 3' length tapered section or in the 3' diameter x 50' section ?

Is the 1' opening open or closed?

Bottom open or closed?

Contraption anchored or free floating?

guess:

during heating process the warmed water will rise and will be expelled out of the nozzle. The water will be replaced by water from below and from flow at the bottom of the 1' nozzle.

Water is an insulator and the unheated water will stay cold.

Approaching 100 deg steam bubbles will form on the last element but will collapse soon. The convection currents will increase.

Boiling: The boiling point may not be reached before the whole reservoir is heated.

Conclusion.

Rather catch the fish and prepare them in a pot, pan or open fire.

(You must try wrapping them in tinfoil or mud and heat on an open flame)

A kettle will use less electricity per cup.

The energy of the outflowing water will be much less than energy used.

LET ME BE MORE SPECIFIC

contraption , free floating and let say 50ft under the surface of the ocean

both ends are open

normal 90 deg elbow

heating elements are in the horizontal 3 ft straight section ,this section is also insulated

from there it tapers dow to the 1ft dia concentric reducer

temperatur of the water, various places in the ocean

number of heater elements, whatever it takes to rais the temperatur to 100 C or 212F

since the difference in pressure from bottom to top is so great , the water can not go back down, so what would be the force at the 1 ft dia nozzle

" so what would be the force at the 1 ft dia nozzle"

Ziltch, Zero, Nothing. It is stated as being an open pipe. Makes little if any difference whether elbow and 3' horizontal with heaters is at upper or lower end. Any hot water will leave by convection as fast as it is heated. Besides all that you don't want to receive the electric bill for operating those heaters over 15 or 20 minutes! ...... Back to the drawing board?

"Pleas dont ask why I want to know."

Oh! But. 'I want to know.'

The water will get hot...

Well, it won't get much hotter than 100degC/212degF, because at 1 atmosphere absolute pressure the water will be boiling. Take the contraption up to La Raya in the Andes, and the boiling temperature will be lower because of the lower air pressure at that altitude (assuming one can find somewhere to plug it in).

Assuming both ends of the pipe are open, a convection current will be set up, with the water in the heated section rising due to the greater buoyancy at higher temperatures. The velocity will be higher at the 1ft diameter end and the flow will probably be turbulent (Reynolds Number >2300).

As the water continues to boil, the concentration of dissolved substances will increase as steam is released from the system. At critical concentrations, solids will begin to precipitate out onto the surfaces of the heating elements, partly insulating them and causing them to run hotter; in the limit the elements will run hot enough to fail, as the water level drops and more of the elements are exposed to air, which is a far better insulator. Any dissolved air, carbon dioxide and other volatile species will be driven off with the steam, and the taste of the water will change, as will its pH. Most biological materials in the water will die, being unable to withstand the higher temperatures.

The electricity bill will increase.

Many substances are more soluble at higher temperatures, or will tend to leach better into solution or suspension. Coffee solids are a good example. Some engineers prefer tea.

Where is this one going?

A visit from Death By Safety?

Re: coffee-maker

I guess this looks like a big coffee percolator or a coffee extractor. Fill it up with R & G coffee and brew a lot of coffee. With that size of coffee maker, you can load as much as 8,835 lbs of roast and ground coffee beans. How many cups would that make?

It should make enough cups of coffee to get me through today's meetings!

Who am I kidding. There isn't enough coffee in the world for that.

Is this some kind of thinking-outside-the-box propulsion system?

Nate you are the only one that can think outside the box. The pressure difference from the top to the bothom of the 50ft pipe is the same ,little below the surface or 1000 ft, note I say the difference . for the sake of argument I close the end of the heating element section and turn on the heater(s). Pressure should develop what it is at the end of the 50 ft below the elbow.now lets open a valve so the water will flow toward the 1 ft opening ( lower pressure) and will be replaced by the 50ft pipe.I know insulating the heating tank and calculating the strengh is taken care of. will water flow out the 1 ft nozzle. This is the end of the Coffee-Maker discussion, and if you like to know, this is the principle of a coffe percolater

I rekon the whole damn lot, coffee tea whatever will rotate about the axis from the reaction to the 1ft outlet. Also you are going to need one hell of a lot of heating.

Good luck

Can someone wke me up when this 'puzzle' is done and let me know if there is or was any point to it?

Grumpy Del

Yeee Haw..there's gold in them thar seas!

This whole thread reminds me of the old schoolboy joke.

What's brown, hairy and swims underwater?

.

..

...

A gorilla with an aqualung...

Just what you need to service this contraption!

Del

(PS I don't consider this 'off topic' I think the whole topic is off topic!)

Without any valves or checks to control flow through the pipe, nothing. As the water is heated, it become bouyant and will begin flowing through your device. Until the entire pond this pie is submerged in is warmed up, you will not get to 212 degree F. What kind of control valves will this 50'long x 3' dia have? How is this pipe insulated from the surrounding water? Will you have a safety relif valve on the pipe? Will you have a safety relief on your bladder after consuming this much coffee, tea, or whatever? As the newspaper ad says "Enquiring minds want to know."

water very near the heating elements will boil. the bubbles will rise a few centimeters and then condense. this will cause the water to circulate through the pipe and you'll never get it much hotter than it is except very near the heating elements. It probably won't boil at 212 degrees if its deep underwater, because it will be subjected to a column of water which, if my memory serves, increases either a pound of pressure for every five feet of water or five pounds of pressure for every foot of water. I have a memory like a steel sieve. I think it's the latter. so the pressure that allows water to boil at sea level is about 14.7 pounds per square inch. Three feet underwater, it's double that. I think. At great depth, water can be heated to hundreds of degrees and it still doesn't boil. If you want the water to boil, cap one end of the pipe. The pipe will quickly fill with water vapor, forcing out the liquid water. If you cap both ends of the pipe, you will have created a pipe bomb which will eventually explode.

nothing ...... nadda ....... water wont even get near temp... in the ocean?? Ok lets pretend you put it in a large tub of water were you wouldn't have an infinite mass to heat. It will eventually boil. Thats it, steam off and bubble a three foot diameter tube is way to big ... maybe if you had mega powered heaters that could turn water to dry steam at the rate of 20 to 30 gallons a min. And i say dry because it would have to be hot enough not to be cooled by the influx of the cooler water maybe you could get water to come out the elbow in little spurts.

Taking into consideration that both pipe ends are opened, and there is enough heating source. The water shall boils inside the pipe, goes up until full boiling, causing steam bubbles goes outside from the narrow end of pipe 1 ft. By continuation of heating, after certain time, the whole container shall be boils.

Abdel you are the only one with an intelligent comment and worth replying to . Let me clarify, the 50 ft pipe is not heated. The heating elements are in the 3 ft horizontal section that tapers down to a 1ft diameter hole.

If I can heat the 3 ft section fast enough , the water will expand . It can't go back down the 50 ft pipe because the pressure is much greater down there. It will escape through the 1 ft hole and new water will come in from the 3 ft dia pipe.Diameters of pipes will have to be calculated according to power supply. ( let's say a nuclear reactor) A valve could be mounted before the 1ft opening that opens at a certain pressure.

"If I can heat the 3 ft section fast enough , the water will expand . It can't go back down the 50 ft pipe because the pressure is much greater down there. It will escape through the 1 ft hole and new water will come in from the 3 ft dia pipe.Diameters of pipes will have to be calculated according to power supply. ( let's say a nuclear reactor) A valve could be mounted before the 1ft opening that opens at a certain pressure."

Why and to what purpose?

Or is this thread another inane execise of 'MM' ???

Thank you Johann