Thank you so much for preparing that.
I can follow it better, and I have been able to reproduce equation (3).
Question: Where does equation (1) come from?
Is that from h = u + Pv? therefore Δh = Δu + ΔPv? Where Δu = CpΔT?
Thank you. Sorry about the terminology, I am trying to understand it and it could be because English isn't my primary language.
I actually want to understand this part:
"and, any remaining liquid and vapor leave the unit at a lower temperature."
This is what I don't understand. Why does it...
Thank you for taking the time to write that, I truly appreciate this.
I have some very naive / amateur questions based on your reply. I hope you don't mind.
"since the fluid pressure drops in the throttle, the internal energy of the liquid must increase (a little)."
How can this be? What...
I actually don't know. I don't have a background in this field.
"Conversion of water into steam requires energy"
I thought that's what temperature is.. a joule is the energy required to 1g of water by 1 Kelvin.. so temperature is a tank of joules I suppose. If temperature drops, where does...
Hi everyone
Would like some help here.
If I draw a control volume across a valve that I can control the flow area to, and I know the temperature and pressure upstream of the valve, I will know its enthalpy:in.
High temperature liquid going through this valve supposedly changes to steam due...
Vedward ; is that what's called the natural circulation system? It sounds really good but I won't attempt that for this first version, but will look into that if this one works.
Russ_watters ; yes the whole system would be a closed loop system, so the inlet of the heat exchanger is 1...
Thank you SteamKing, I'll find out if I know someone who can do the enthalpy analysis.
I did go through a couple of pump manufacturers website. There I learned why people talk about Head instead of Pressure. But first I needed to know if I needed a pump at all (I now realize yes I do because the...
Ok, thank you. Would it be possible at all to calculate on paper what the temperature of the condensed water after the heat exchanger would be, if I can measure the flow rate, and know the river temperature etc? I think it should be possible to prove the temperature and pressure would be below...
Thank you for your reply..
Unfortunately it doesn't quite help me. Yes I already have a steam supply system, some mirrors that reflect sunlight to turn water into steam at 100C.
Now I need to turn the steam back to water by using a heat exchanger with a secondary side from a river.
I want to...
I wish. But its not. Its a research I'm naively doing because I don't really understand these pumping parameters. If the answer to the first question is "no" then I could just skip the pump question.
I need some basic help as someone who has never done this before and have little understanding of what's going on:
Suppose I have steam with mass flow rate of W [kg/s] at 100C and 1 bar going to a heat exchanger (secondary side at 30C, 5 bar, 5 kg/s).
First Question)
This steam should condense...
Hi, I'm still new to this forum!
I'm learning some mechanical engineering, specifically fluid mechanics and heat transfer. My background is electrical engineering so this subject is quite tough for me, its very inexact.
Would love to have some help and guidance from you!
p/s How do I edit the...