Hello,
I explained in another thread my current business-hobby about various thermodynamic cycles.
(see http://www.eng-tips.com/viewthread.cfm?qid=262808&page=1)
I would like to find a nice T-s diagram for pentane.
In many papers such diagrams are given schematically.
However, I would like to...
Thanks for your answers CH5OH !
The waste heat streams I consider are dirty gas with a temperatures between 250°C and 450°C.
The benefit of organic rankine cycle for low temperatures waste heat stream is quite understandable. However, it is the same rankine cycle, and the advantage is...
Hello,
I have been asked an advice about waste heat to power systems (say wh2p).
The available waste heat to be considered is a (dirty) gas in a temperature range between 250°C and 450°C.
The useful power that could be generated would range between 2MW and 10MW.
I know some examples based on...
Hello,
I have been asked an advice about waste heat to power systems (say wh2p).
The available waste heat to be considered is a (dirty) gas in a temperature range between 250°C and 450°C.
The useful power that could be generated would range between 2MW and 10MW.
I know some examples based on...
Hello,
For the holidays period, I would like to have some fun with the Excel drawing features.
I am using the Excel drawing features quite a lot for representing flowsheets.
Besides, I have also developped a specialised class library that I am using in Excel to calculate the flowsheets.
So the...
rob194,
It is just as important as the equation tells us.
If w<<q1 and w<<q2, then assuming w=0 will only lead to a small error.
Since you did not mention the quantity of wheat, I gave you the general solution (though also approximate). How much kg of water ar using to cook 1 kg of wheat?
Roughly, the final temperature will be given by:
Tf = (w cw Tmix + q1 cq Tmix + q2 cq Tq2)/(w cw + q1 cq Tq1 + q2 cq)
where
w and q indicate wheat and water quantities respectively
and 1 stands for preparation water
and 2 stands for quench water
cw is the wheat specific heat
cq is water...
trashcanman,
What do you call a closed system first of all?
If you mean a thermodynamic cycle, then I cannot understand what you mean.
After all, there are many closed cycles in which the fluid cycles its pressure.
It is true that in the system I proposed, you can recycle the output to the...
There must be some misunderstanding.
But, trashcanman, if you do as requested by MintJulep, then indeed there will be no flow.
I am sure that you know that most applications are just like that: input and output at atmospheric pressure. Just conider a car engine: it takes air and even fuel at...
Hello,
Here is a simple flowsheet:
|input>|pipe1>|fan1>|filter1>|neutral point|filter2>|fan2>|pipe3>|output>
In this flowsheet:
- the fluid is air
- the input and output are atmospheric pressure
- there are two fans
- there is a "neutral point", whose pressure should be close to...
Hello,
I have to analyse the sizing and control of a small pipe and fans and filters network. I find no fun in doing that the way I did it some years ago.
Would there be some (possibily free or cheap) software available for this?
The needs are rather modest.
The network of pipes is a tree...
Hello,
I would like to find the best available formula for the acid dew point.
Composition of the flue gases would include: O2, N2, CO2, SO2, HCl .
Thanks
Personally I have used the book "Heat Transfer: A Basic Approach" by Ozisik.
I found it was very clear and well organized.
The radiative heat transfer section is thin but contains the essential information.
In this kind of book, the physics fundamentals are always missing. If you want to go...
chicopee,
I have often calculated the SO2 acid dew point.
I never did the same for CO2.
Would you have a reference for CO2/H2O acid dew point?
I should also note that the stream will be rather dusty.
