If you were Registered and logged in, you could reply and use other advanced thread options
|
Posted by -zero on March 1, 2008, 12:18 am
show/hide quoted text
>A BTU is the ability to change one pound of water one degree farenheit.
>Now,
> you have the data needed to figure out the BTU/h needed.
Ability?...
Here"s your new sig. Stormy:
Christopher A. Young
Learn more about BTU's
http://www.answers.com/topic/what-is-a-btu-1?cat=technology
|
|
Posted by Stormin Mormon on March 1, 2008, 8:45 am
Varies, different liquids have different weights.
--
Christopher A. Young
Learn more about Jesus
www.lds.org
Well done kid. College is being good to you.
Next question, how many pounds per US Gallon?
|
|
Posted by Zyp on March 1, 2008, 3:25 pm
Stormin Mormon wrote:
show/hide quoted text
> Varies, different liquids have different weights.
> --
> Christopher A. Young
> Learn more about Jesus
> www.lds.org
> .
> Well done kid. College is being good to you.
> Next question, how many pounds per US Gallon?
ROFL
--
Zyp
|
|
Posted by Zyp on March 1, 2008, 3:40 pm
amdx wrote:
show/hide quoted text
> I have an ice machine that produces about 450 lbs per 24 hrs.
> In the winter!
> I live in Florida, in the summer the inlet water temperature can be
> close to 90*.
> I want to prechill the water to maybe 40*. The machine will need
> about 1 gallon every 15 minutes.
> I'd like to use a small refrigerator to chill the water.
> I have a few details to work out, such as it takes 252 ft of 5/16"
> tubing to hold 1 gallon of water. (not practical)
> The refrigerator I'm looking at says 256 btu/hr.
> My question, how many btu does it take to reduce the temperature
> of 1 gallon of water from 90* to 40* in 15 minutes.
> Thanks, Mike
You could [using copper tubing] route the inlet water into the storage bin's
bottom area where, it could pick up some of the melting ice water and become
somewhat cooler that the 90 degree inlet temperature. That might increase
production. Most manufactueruer's recommend water temperature's between 35º
F and 90º inlet water temperature. If lower temperature [as in your case]
you could [for the cost of the copper tubing] route some of it through the
ice storage bin box. Use RTV glue to seal the entrance and exit of the
tubing.
Just a suggestion.
--
Zyp
|
|
Posted by Zyp on March 1, 2008, 4:43 pm
Marc O'Brien wrote:
show/hide quoted text
>> If lower temperature [as in your case]
>> you could [for the cost of the copper tubing] route some of it
>> through the ice storage bin box.
> That would be an idea if the ice was overly frozen by the machine. You
> could raise its temperature from say -6°C to -3°C without any melting.
> But in practice this would not work. The surfaces of the nearest ice
> masses would melt. So your suggestion would increase the rate of ice
> production by merely the same rate that it melts ice in the storage
> bin.
The ice in the storage bin is keep cold by it's own presence [and
insulation.] There is considerable melting just to keep up with the heat
load of the surrounding bin and the aspiration of the ice. And true, the
introduction of the warmer water would increase melting. But, by the same
token, the inlet water temperature is now being reduced which would increase
the rate of harvest. [You could just loop the copper once to minimize the
exposure] I don't think it would "cancel" out the increase in production.
It would be interesting to see though, the part of the whole process would
be influenced by the withdraw from the ice bin as the need arises [more
use.] In the beginning [with an empty bin] there would be no increase, but
as time passed it might.
Isn't the thought process the same as [sub-cooling the liquid line using the
suction gas]?
--
Zyp
|
Page 3 of 6 < 1 2 3 > last >>
| Similar Threads | Posted | | dream machine | December 5, 2006, 10:13 am |
| need help with a commercial ice machine | January 2, 2008, 12:11 pm |
| Business Vending Machine | November 13, 2006, 9:37 am |
| malfunctioning Hoshizaki ice machine | January 31, 2007, 8:33 pm |
| Next time you work on an ice machine | June 9, 2007, 9:49 pm |
| Ice machine doesn't like cold weather | January 18, 2009, 9:19 am |
| Re: The dangers of wearing shorts in a machine shop | July 3, 2006, 6:11 am |
| Are my BTU figures for my (small) machine room crazy? | April 18, 2007, 6:12 pm |
|
|
Yahoo! 
Google 
Windows Live 
del.icio.us 
digg 
Netscape 
XML Sitemap
>Now,
> you have the data needed to figure out the BTU/h needed.