Power supply - Wind, Solar or both

[EE00]

I am working on a marine project that require electricity to supply 6 kw load, (day and night 24/7) the surrounding temperate will be around 120 (max) degrees Celsius = 248 degrees Fahrenheit and this project will be placed on a floating barge (available free area 60 meters squared on barge) in the sea, the voltage for our system is 24VDC. The system is remote (un-human) so it has to be highly reliable and maintenance free.

We need the 6 kw for a gas pump to supply a heat furnace up to 120 degrees Celsius do you think there would be any other way to heat up a chamber other than the oil pump???

What about the wind turbine with storage batteries? How big of a wind turbine ..would we need 6kw or more?

How about fuel cells for such project??
I did try PV but the free area is very small.

If you have any references, books, websites, company/vendor or any kind of help you could offer would be greatly appreciated.
Thank you and Happy New Year,

 

[IRstuff]

Same questions to your other posting. Please refrain from double posting. You should RF your other posting if this is to be the forum you select.


How long before resupply? Any consumable fuel will be limited by your resupply cycle. 120ºC is about boiling point of water, and is above the desirable junction temp of most ICs, so inherent reliability of any electronics will be poor. The high temperature is also detrimental to the conversion efficiency of any solar cells.

Your numbers result in 144 kWh per day, which means you'll need way more than 60 sq meters of solar cells.

144 kWh equates to 500 MJ, so you'd need at least 4 gal of gas per day.

As for wind turbines, the performance numbers aren't that impressive:

http://www.windturbine.net/performa.htm.

Using the worst-case numbers, you'd need about 5 turbines to produce the required energy per annum, and it'll be more, since you'd need to ensure getting your constant 6kW output on an hourly basis.

Seems to me that gasoline is the way to go, you'd need about 1500 gal for the year.

TTFN

FAQ731-376

 

[gepman]

I would consider making steam with your heat source and using a small steam turbine to turn the pump or possibly a direct acting steam pump,

http://www.unionpump.com/products/dapumps.html

. You will need a different source of power to initially feed the fuel such as an electric or motor driven pump, but once the heat builds up you could use this heat source to generate steam. The steam pressure will be low but you don't say what the required gas pressure will be.

When you say "gas" to you mean natural gas (methane) or liquid gasoline? I haven't seen liquid gasoline used to heat furnaces so I would assume natural gas but then I would assume that it would already be under pressure. No matter what the concept above would work.

 

[MrMyers]

Would a

http://www.whispergen.com/

be out of the question? A small stirling engine to create 'lekky and any leftover heat for other applications.

 

[BSilva]

Hi,
Didi you think on a small wave energy generator, connected together with wind turbine?

 

[OperaHouse]

around 120 (max) degrees Celsius = 248 degrees Fahrenheit

I've heard of boiling seas, but this environmental spec is really out there. How about running a fan in that compartment? Am I the only one that thinks this is an absurd post? Someone out to hijack this thread, the OP is never coming back!