Recent content by EVriderDK

Yes, I know stream 2, but only water content of stream 3, so I need one more property. I also know stream 4 so I guess I should be able to take the enthalpy from stream 4 and subtract the energy that is added from the water, and then I should be able to get the enthalpy before the humidifier. -...

Hello again. Yes you can see a diagram here: http://peecee.dk/upload/view/445952

I am not sure I get it. I have a heater, and after the heater there is a humidifier. I do know all properties before the heater and also after the humidifier, but I am interested in the properties between the heater and the humidifier. I have flowrate and enthalpy of the steam from the...

I'm not sure about what you mean, but for calculating enthalpy of air and water I guess these formulas are relevant: h.dry air=(c.p.air⋅t.dry air) and for water it is h.water=(c.p.water * t.water + h.heat of evaporization)

- Without chart! I know I can bring up my molliers chart and use that enthalpy scale and draw a line and all that, but I want to know how to calculate it, and I cannot find any formula. Right now I have a problem where I only have the absolute moisture content before the humidifyer at w=0.0057...

Hey I do not think that it does.

When you have a perfect compressor the compression will follow an isentropic line and an h,log(p)-diragram (enthalpy,pressure diagram) but why? What is entropy exactly and what does it mean in such a system? In real life the compressors have an isentropic efficiency of maybe 0.8, which will...

Hey. If i Have a 3x400VAC system, and I want to calculate the voltage drop over the cable "vectorially" - or what you call it :) - how do I do this? U.nominal=400V I have tried this method: \DeltaU.conductor=I.1*Z.cable1+I.2*Z.cable2+etc. and then I will have to find the new voltage ->...

After thorough studies, the fog does not disappear just because you turn off the machine. Never been to a disco?

Hey. I really want to know if it is possible in some way, to remove the fog created by a smoke machine. The fog is created from heating up glycol and destilled water at 300 degree C

Okay I will do that, Thank you all!

No, I don't want to simulate. Just need a symbol pack. But where can I find them?

I know of multisim, but that is mostly fo rlow voltage applications. I need a schematics program like multisim, that has models of big transformer stations, current transformers, fuses, circuit breakers etc. Anyone of you who knows of a tool like this?

Yes, i get that, but my teacher said, that if it stall, there is nothing else to do, than turning it off and on again, also if it gets unloaded. I cannot understand how it can stall with the stators magnetic field still fluxing around?! Is it because the rotor gets over magnetized or something...

I cannot find anything about this, sorry.