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Old 08-09-2014, 22:54   #211
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Re: Important things we don't talk about much

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a Mr. Coffee uses 10-AH/pot to make coffee, might as well use the power from the solar
Mr. Coffee is doing that at 110V...

That is like 90+ amps DC...
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Old 08-09-2014, 22:57   #212
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Re: Important things we don't talk about much

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Heating water with electricity on a boat is a daunting prospect...

A Joule is an energy measurement. Basically 1W per second

It takes 4 Joules to raise the temp of 1ml of water by 1DegC to do that in 1 second would require 4 watts.

Take the kettle boiler linked for example - 20Oz = 600ml
Room temperature water is about 20Degc so I need to raise it by 80 Degc

4J X 600ml X 80Degc = 192000J

The unit is 8 amps = 12 X 8 = 96W

192000 / 96W = 2000 Seconds or about 33 minutes to boil. Even a big cup of coffee (300 ml) would take 15 minutes

It would also take about 4.5 amps. To get the water boiled in say 3 minutes (like your kettle at home) you'd need a unit that does about 80 amps or 960W.
There are no short cuts, are there?
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Old 08-09-2014, 23:47   #213
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Re: Important things we don't talk about much

> It would also take about 4.5 amps

Puhleaze. You keep on doing that.

4.5 amp hours
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Old 09-09-2014, 00:22   #214
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Re: Important things we don't talk about much

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> It would also take about 4.5 amps

Puhleaze. You keep on doing that.

4.5 amp hours
Are you stalking me or am I getting paranoid -

Of course you are right. I was always a student who shot for the 90's on tests...
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Old 09-09-2014, 00:42   #215
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Re: Important things we don't talk about much

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Are you stalking me or am I getting paranoid -

Of course you are right. I was always a student who shot for the 90's on tests...
Just because you're paranoid, doesn't mean we aren't out to get ya!
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Old 09-09-2014, 00:57   #216
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Re: Important things we don't talk about much

Am I the only old-fashioned sailor around here?

I heat water on the stove and if in harbour or at anchor, pour it through a coffee grounds filled paper filter into a thermos.

If at sea, I use a french press coffee pot.

Or one of these and make only a cup

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Old 09-09-2014, 04:47   #217
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Re: Important things we don't talk about much

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Mr. Coffee is doing that at 110V...

That is like 90+ amps DC...
So what? It is no added cost for the solar to recharge the 10-AH, which is better than the propane bottle that went empty the other day.
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Old 09-09-2014, 04:56   #218
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Re: Important things we don't talk about much

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So lets talk more about those unspoken important things.

Reading glasses. The other day I got a pair of reading sunglasses that had a full lens instead of bifocal, I liked these a LOT better in the cockpit the past week.
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Old 09-09-2014, 05:19   #219
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Re: Important things we don't talk about much

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So what? It is no added cost for the solar to recharge the 10-AH, which is better than the propane bottle that went empty the other day.
I guess the "So What" is that it is not 10ah it is more like 90-100ah.

But if you have the solar array to make 90 amp hours for a pot of coffee, go for it...

If you have a 300W array that would be about 2/3 the daily production.
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Old 09-09-2014, 05:25   #220
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Re: Important things we don't talk about much

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I guess the "So What" is that it is not 10ah it is more like 90-100ah.
No it is 10-AH (amp-hours)!!!

Maybe you need a new coffee maker if yours takes an hour to brew a pot! Because a Mr.Coffee using 100amps would need to run an hour brewing a pot to get to 100-AH
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Old 09-09-2014, 05:27   #221
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Re: Important things we don't talk about much

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I guess the "So What" is that it is not 10ah it is more like 90-100ah.

But if you have the solar array to make 90 amp hours for a pot of coffee, go for it...

If you have a 300W array that would be about 2/3 the daily production.
Here we go again. It's still 10 amp hours, it's just being used at a rate of 90 amps.
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Old 09-09-2014, 05:43   #222
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Re: Important things we don't talk about much

I confess it is a luxury and may not reflect universal priorities, but we have an espresso machine bolted in in the galley. (It came with the boat, if that counts for anything). Yes, it is power-hungry -- probably 1500W while it is heating (it runs on 220V form the inverter). But it heats the small boiler to temperature in only 2 or 3 minutes. If the crew requests steamed milk, that takes longer and more power. I feel the power and space it consumes is well worth it for the improved disposition of captain and crew alike.
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Old 09-09-2014, 05:59   #223
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Re: Important things we don't talk about much

Did I miss the plain ole percolator? I've had one of these for the past 20 yrs, been all over the world with me

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Old 09-09-2014, 06:03   #224
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Re: Important things we don't talk about much

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Did I miss the plain ole percolator? I've had one of these for the past 20 yrs, been all over the world with me
You like coffee made from a percolator best? All I can say is WOW
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Old 09-09-2014, 06:06   #225
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Re: Important things we don't talk about much

back to important things

Since we are sidetracked by coffee (important) I like the flavored creamers. Besides the taste I like that they last a long time before going bad and since I have run out of sugar on the boat I like that you can just add a little more of the creamer to make up for it if needed.

Now I will admit that the coffee black people are not going to see it the same.
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