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Subject Author Date
Walk in freezer design don 07-16-2006
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Posted by New Directions In Building Ser on July 21, 2006, 2:57 am
>
> >
> >> Dear Engineers
> >>
> >> I would like to know how walkin freezer is designed.
> >> For example A freezer of size 10ft X 10ft and 9 ft high (rooms inside
> >> dimensions) with assumption that we have the required insulation in
> >> place.
> >> The ambient Design Temperature being 40 deg Celcius
> >> Required Room temperature minus 20 deg celcius
> >> and air cooled condensor to be considered
> >> the piping (distance between the evaporator and compressor to be 30
> >> meters horizontally)
> >> required is the evaporator and compressor selection, pipe size.
> >>
> >> Regards,
> >> Donald
> >>
> > CHeck with the guys at your local supply house... they can set you up
with
> > a correctly matched system to go into a proper box.
>
>
> Thats great Steve, the industry needs more contractors too tell the DIY to
> go to our suppliers to buy stuff, thats gotta help the trade a great
> deal...........
>
> Rich
>
Ok - So you've got a room volume of about 25m3 and you desire a split of
60degC and I'll assume a room RH of 85% Fabric Loads are about 0.5kW and
expected air change infiltration about another 0.5kW. However the main
variables are what are you going to put in there eg if you put 500kg of Beef
and say 500kg of pork in there at an entering temperature of 15 degC and you
need it to get down to temperature in 10 hours then a 15kW unit would
suffice, but if you wanted the same load dropped in 1 hour, then you'd need
125kW. So make sure you include all of the answers to the questions that I
might think of before you ask for a generic design solution - because
there's really no such thing!!!!!!!!!!!



Posted by don on August 3, 2006, 6:18 pm

New Directions In Building Services (Australia) wrote:
> >
> > >
> > >> Dear Engineers
> > >>
> > >> I would like to know how walkin freezer is designed.
> > >> For example A freezer of size 10ft X 10ft and 9 ft high (rooms inside
> > >> dimensions) with assumption that we have the required insulation in
> > >> place.
> > >> The ambient Design Temperature being 40 deg Celcius
> > >> Required Room temperature minus 20 deg celcius
> > >> and air cooled condensor to be considered
> > >> the piping (distance between the evaporator and compressor to be 30
> > >> meters horizontally)
> > >> required is the evaporator and compressor selection, pipe size.
> > >>
> > >> Regards,
> > >> Donald
> > >>
> > > CHeck with the guys at your local supply house... they can set you up
> with
> > > a correctly matched system to go into a proper box.
> >
> >
> > Thats great Steve, the industry needs more contractors too tell the DIY to
> > go to our suppliers to buy stuff, thats gotta help the trade a great
> > deal...........
> >
> > Rich
> >
> Ok - So you've got a room volume of about 25m3 and you desire a split of
> 60degC and I'll assume a room RH of 85% Fabric Loads are about 0.5kW and
> expected air change infiltration about another 0.5kW. However the main
> variables are what are you going to put in there eg if you put 500kg of Beef
> and say 500kg of pork in there at an entering temperature of 15 degC and you
> need it to get down to temperature in 10 hours then a 15kW unit would
> suffice, but if you wanted the same load dropped in 1 hour, then you'd need
> 125kW. So make sure you include all of the answers to the questions that I
> might think of before you ask for a generic design solution - because
> there's really no such thing!!!!!!!!!!!



Yes I now realise what type of idiots i asked this questions.


Posted by Noon-Air on August 3, 2006, 9:20 pm

>
> New Directions In Building Services (Australia) wrote:
>> >
>> > >
>> > >> Dear Engineers
>> > >>
>> > >> I would like to know how walkin freezer is designed.
>> > >> For example A freezer of size 10ft X 10ft and 9 ft high (rooms
>> > >> inside
>> > >> dimensions) with assumption that we have the required insulation in
>> > >> place.
>> > >> The ambient Design Temperature being 40 deg Celcius
>> > >> Required Room temperature minus 20 deg celcius
>> > >> and air cooled condensor to be considered
>> > >> the piping (distance between the evaporator and compressor to be 30
>> > >> meters horizontally)
>> > >> required is the evaporator and compressor selection, pipe size.
>> > >>
>> > >> Regards,
>> > >> Donald
>> > >>
>> > > CHeck with the guys at your local supply house... they can set you up
>> with
>> > > a correctly matched system to go into a proper box.
>> >
>> >
>> > Thats great Steve, the industry needs more contractors too tell the DIY
>> > to
>> > go to our suppliers to buy stuff, thats gotta help the trade a great
>> > deal...........
>> >
>> > Rich
>> >
>> Ok - So you've got a room volume of about 25m3 and you desire a split of
>> 60degC and I'll assume a room RH of 85% Fabric Loads are about 0.5kW and
>> expected air change infiltration about another 0.5kW. However the main
>> variables are what are you going to put in there eg if you put 500kg of
>> Beef
>> and say 500kg of pork in there at an entering temperature of 15 degC and
>> you
>> need it to get down to temperature in 10 hours then a 15kW unit would
>> suffice, but if you wanted the same load dropped in 1 hour, then you'd
>> need
>> 125kW. So make sure you include all of the answers to the questions that
>> I
>> might think of before you ask for a generic design solution - because
>> there's really no such thing!!!!!!!!!!!
>
>
>
> Yes I now realise what type of idiots i asked this questions.
>
You still haven't figured out what kind of idiot questions you are asking.



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