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Old 08-06-2010, 04:56   #1
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Wind Generator for Refrigeration

I'm tried of dealing with ice! My boat has refrigation but I don't use it because it's on a mooring all week. I have a radar on a pole that I have only used twice and it OLD, so the pole would make a great place to mount a wind generator instead.

So I have read for years on the solar and wind story so don't want to go into a new discussion of which is best, how they work, etc etc.

All I what to hear is from real experience whether a wind generator will keep the batteries up if running refrigation for a week with no one on the boat (I have 200 AH house bank).

Of course I figure the pay back for the wind generator is about 240 bags of ice! Which for the most parts equals 240 weekends!

Thanks
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Old 08-06-2010, 05:01   #2
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Depends on the wind! I would say no in your area, especially with a 200 amp bank. For most wind generators to keep up with a fridge you need a steady 15 to 20 knots.
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Old 08-06-2010, 05:06   #3
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From experience, in a word, no, but that was my experience with utilities that ran on 120v via an inverter. I think you'd need to give more information for a more exact answer. What is the power use of you unit, how much wind can you rely on, can you or will you install solar as a backup/supplement to the wind generator?

P.
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Old 08-06-2010, 05:35   #4
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The answer is no--you would be much better off with about 200 watts of solar panels. The fridge should draw about 50-70 amp-hours or 600-850 watt hours of power per day in the Northeast US, and you should be able to count on about that much from the solar array during the summer. You would need an average wind speed of 15 knots to get that much from a typical wind generator, and the solar panels are quiet, need much less maintenance, and cost about the same or less.
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Old 08-06-2010, 05:37   #5
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I'd have to give a qualified no.

My wind generator kept up with my refrigerator usage for about 3 weeks. But, It was a fairly windy month as these things go and it was a VERY well insulated and efficient refrigeration system (Frigoboat). Normally, in the areas I put the boat, we don't get much wind, that's the predominate issue. If you have average wind speed of say 10 knots, you'd probably be able to do it with an efficient system.
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Old 08-06-2010, 12:49   #6
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My Air-x more then well keeps my fridge running.
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Old 08-06-2010, 14:00   #7
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there are too many variables to answer either way!!! How well is the fridg insulated? 3" of foam? how often do you open it?.. how much average wind is at your mooring? and even how well your fridg system is balanced? ie sized ... I have been experimenting with my homebuilt from parts fridge in my boat (i even sand cast my own keel cooler) and I cut my energy usage by 30% using a hydrocarbon refrigerate.(redtek 12) works Great! I know I'll hear from the peanut gallery about hydrocarbon refrigerants

The short story ..is a wind generator will go a long way towards powering it...but 120 watts of solar or so would be a nice addition...as well as a larger battery bank.

I beleive Kollman is the expert..he has written alot on the subject and tested quite a bit...
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Old 08-06-2010, 15:20   #8
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Thanks. I didn't think it would do it but figured was worth asking. Solar too much of install at the moment and am going to put it off till I'm sure I'm going to keep the boat longer. In the end the ice hauling doesn't borther me as much as having to take things like salad dressing off/on the boat each trip. I have a small 12V cooler for the car that I bet would work fine on the boat for this with a wind generator.
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