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i'm not sure what u want exactly, but maybe a tank with orifice could help. so u'll basically control the flow from the tank to the piping, and u can make it as slow as u want.. Elie Abou Jaoudeh

all heat transfer problems that i know of, can be solved as resistance pbs, u know you have either parallel or series resistance Elie Abou Jaoudeh

i don't think any1 would appreciate the project if i get an ice cream maker :P..btw..how on earth are we supposed to calculate the thickness of this jacket around the conainer..and its not an ice cream maker, its an ice maker.. thnx Elie Abou Jaoudeh

Hey guys, i'm confused about one thing and hope i can find some1 who can help me: Ice maker machines contain the evaporator around the ice making drum of the machine. There are 2 methods we are thinking about: 1. Rapping the normal copper tubes around the drum, true we would face a high pressure...

If u consult a Heat Transfer book u'll realize that their are simplifying methods for the above equations provided by GSTeng, and there are correction factors which should be taken into account depending on the type of the heat exchanger. GSTeng method is correct, but if i were you i would...

i see..thnx for bearing with me here.i think i know what i have left to do.. Elie Abou Jaoudeh

my confusion lies in the table at the beginning. Saturation temperature = 32 for 58psig while the superheat temp = 12 !!!! what does that mean, and how can i find it for a system without physiscal measurement Elie Abou Jaoudeh

it does help and thnx..but its still not what i'm confused about..i know the superheat uses and things like that..but the superheat temperature here is not a real temperature if what u say is true. cause the superheating a gas at a certain pressure means taking it over its saturation temperature...

1.superheat Psig Saturated Temp Suction line temp superheat temp. 58 32 44 12 64 37 47 10 70 41 50 9 can some1 help me understand the ratings above.. Saturated temperature is easy ok. Suction line temperature is...

if the calculations allow u to speed up the flow in the hot tubes, and slowing down the cool liquid flow maintaining turbulent flow. but i don't think its efficient to bring the two temperatures so close to each other. Elie Abou Jaoudeh

laminar flow is an enemy to heat transfer, the minimum flow rating is that u stay in the turbulent flow region which gives u good heat transfer. The limitation of this ,on the upper side, is friction. while increasing flow speed u'll add turbulence which technically is good, but u reach a pt...

i think an non-equal static pressure might affect the flow in unpredictable ways. i Would balance the static pressure, even though i'm not really experienced yet in this domain. btw what program are u using for the design? Elie Abou Jaoudeh

i don't know why you are runing from finding the value of U, its convection-conduction-convection, and it appears you already have most of the values, so i think you should try basic calculation using heat transfer equations. But what scares me in the system is that i don't think it will work...

Well i think you should use a multiphase flow on Fluent (that's the program i use for CFD). It takes into consideration the solidification of the glass as you move along. If u have access to it i think it would help. Elie Abou Jaoudeh

I may be a month late, but i hope that the info i will give u will help. I was asked to model a new method to heat a 100m3 indoor and 600m3 outdoor pools. I learned a lot about the convection and radiation coefficient of water. Usually for 3.5mph air the water coefficient of convection H=10.5...