[Rhodes22-list] Cooking

[brad haslett]

Bill, I've looked at so many sites and read so many
books it all runs together now.  However, nothing I've
seen to date referred to Puekerts theory so I did some
research on that.  Look at usbattery.com/specs4.html. 
It addresses Puecket and gives amp hour ratings.  My
numbers for a group 27 battery are close to theirs.  I
went through three universities until I found one that
offered an accounting degree without calculus so my
math is always suspect.  Please point out where I
failed this time.  Brad.
--- Bill Effros <bill@effros.com> wrote:
> Brad,
> 
> I'd love to know what you come up with.  Your
> problem will be something
> called Puekert's Number or Puekert's Equation.  Look
> it up in Google.
> According to the theory, your 180 amp battery simply
> can't deliver that much
> energy in such a short period of time.  It can
> deliver 1 amp for 180 hours,
> but it can't deliver 180 amps for 1 hour.
> 
> I've never tried it, so I don't know what the
> threshold is, but I do know I
> wouldn't want to be in a boat at night with hot
> coffee and no lights.
> 
> Try it and let me know.
> 
> Since I plan to get rid of my batteries I may take a
> look also.  Will the
> boat wiring withstand this kind of load?
> 
> Bill Effros
> 
> 
> ----- Original Message -----
> From: "brad haslett" <flybrad@yahoo.com>
> To: "The Rhodes 22 mail list"
> <rhodes22-list@rhodes22.org>
> Sent: Monday, November 04, 2002 1:58 PM
> Subject: Re: [Rhodes22-list] Cooking
> 
> 
> Bill, I've seen several of those grills mounted on
> R-22's and I like them.  Anne has a charcoal only
> grill on hers and I like that.  According to my
> math,
> the 12vDC coffee makers draw 12 amps.  Assuming a
> fully charged 180 amp battery and a 50% draw down
> threshold you could make 30  pots of hot water
> (assuming a 15 minute cycle) without recharging,
> more
> if you wanted to take the battery closer to death.
> (180/2)/(12*.25)= 30 pots.  As was pointed out
> earlier, you can't always count on the numbers
> working
> as advertised but I'm going to test this theory in
> my
> backyard before I set out.
> 
> Brad Haslett
> --- Bill Effros <bill@effros.com> wrote:
> > Brad,
> >
> > We have long skirted over the cooking issue, I'm
> > glad you brought it up.
> >
> > Like you, I'm uncomfortable with the fire down
> > below.  Roger has faced all
> > adjacent surfaces with stainless steel.  Have you
> > seen those pictures?
> >
> > The Magma BarBQue grill can be hung over the stern
> > rail so that it and the
> > fuel and anything on fire will simply fall
> > semi-harmlessly into the water.
> > The new propane magmas can be used as a grill, as
> an
> > oven, or as a burner.
> > I store my grill in the lazarette and can quickly
> > set it up as needed.
> > However it's a little awkward leaning out to cook,
> > and many a good meal has
> > fallen overboard.
> >
> > Roger pre-plans everything, packs food in dry ice,
> > and prefers to cook it on
> > shore.  Since a Rhodes can be pulled right up to
> the
> > beach this is a viable
> > option.
> >
> > Cooking on board is dicey even in much larger
> boats.
> >  Scalding is always a
> > danger, in addition to carbon monoxide, stuff
> > catching on fire below deck,
> > and fuel exploding.
> >
> > I doubt that cooking electrically is viable.  The
> > current draw is enormous
> > and will suck the life out of as many batteries as
> > you would ever consider
> > carrying.  The small generator cannot provide
> enough
> > power for cook as you
> > generate, and would have to stay on 24 hours a day
> > to recharge the batteries
> > for 15 minutes of use.  You'll wind up carrying
> and
> > playing with a whole lot
> > of gasoline high on a potentially rocking boat
> (not
> > supposed to refill while
> > hot--just one more problem.)
> >
> > Bill Berner has done a lot of cruising, and I'd
> love
> > to hear how he has
> > handled this problem.
> >
> > I'd also love to hear how others handle both
> > overnight cooking and cruising
> > cooking.
> >
> > Bill Effros
> >
> >
> > ----- Original Message -----
> > From: "brad haslett" <flybrad@yahoo.com>
> > To: "The Rhodes 22 mail list"
> > <rhodes22-list@rhodes22.org>
> > Sent: Monday, November 04, 2002 10:34 AM
> > Subject: Re: [Rhodes22-list] Electrical KISS
> >
> >
> > Bill, for some reason about half the photos from
> the
> > R-22 server come up as text files on my computer.
> > Haven't figured that one out yet.  I looked for
> the
> > Thermos solution on the Rhodes22.org site but
> didn't
> > find it.  We currently use a thermos for our day
> > auto
> > trips and it works fine and would suffice for
> > daysailing.  One of the nice things about being on
> > the
> > Tennessee River is the ability to travel and yet
> > stay
> > in protected waters.  My older sons and I plan to
> > make
> > a trip to Knoxville in one direction and KY Lake
> in
> > the other, each trip 3-5 days or more if we don't
> > trailer home and possibly to Mobile as well.  I've
> > already done the wiring for shore power, and the
> DC
> > stuff is a piece of cake (I worked as an aircraft
> > mechanic decades ago and have an A&P license). 
> The
> > only issue for me is weight and storage space.  We
> > don't plan on having any six course meals on board
> > just some soup, some coffee, and some hot butter
> for
> > Rummy if we cross paths.  I've owned three VW
> > campers
> > and an Airstream and I'm just not a big fan of
> fire
> > in
> > confined spaces especially when it rocks. 
> Obviously
> > I
> > could buy bigger boat that had all the bells and
> > whistles but I bet their owner list would be dull.
> >
> > Brad Haslett
> > "CoraShen"
> > --- Bill Effros <bill@effros.com> wrote:
> > > Brad,
> > >
> > > Have you seen Roger's Hot Water Thermos solution
> > to
> > > the problem?  Seems a
> > > lot simpler to me.  I've attached the pictures.
> > >
> > > Bill Effros
> > >
> > >
> > > ----- Original Message -----
> > > From: "brad haslett" <flybrad@yahoo.com>
> > > To: <rhodes22-list@rhodes22.org>
> > > Sent: Sunday, November 03, 2002 1:34 PM
> > > Subject: [Rhodes22-list] Electrical KISS
> > >
> > >
> > > Actually there is one high power draw
> application
> > > that
> > > I'm condidering but because I haven't done the
> > math
> > > yet I haven't thrown it out to the list for
> > > discussion.  My boat doesn't have a stove and
> > there
> > > really isn't a single one I've seen yet that
> fills
> > > all
> > > the squares for me.  I'm not paranoid but I have
> > > seen
> > > all the pictures from the early days of the
> DC-10
> 
=== message truncated ===


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