Its an optical sensor. Unlatching? Unsealing? Dang, I'm having a hard time with those concepts... my classes are in spanish hehe. But... that sounds like it may be the issue...
You know, now that I remember, we did apply a (RES) at the end, but somehow theres something wrong...
Our system uses a conveyor belt and an optical sensor that "reads" faulty pieces. Once detected, the conveyor is stopped with a relay, and 4 cylinders pick up the piece and toss it outside...
Hello there! I made a program that has a Timer (TON) at the beginning of the process that activates under 2 conditions. Everything works perfectly, the only problem is that once the cycle is complete, I can't start it all over again! We need to reboot the PLC in order to accomplish that. I...
Ok... everything went out perfect. I even found an online psychometric calculator (ASHRAE ain't free :#). But... I'm having problems calculating the mass airflow... any ideas?
I know its Q*density, but... how can I have Q out of a store ventilator? :S
AbbyNormal: Hahaha, I feel dumb. :$
Termcool: Thanks for the explanation!
JStephen: Yes you are right, its performance, not really efficiency. And yes, the cooling effect is more a feeling than something else.
Ok, so I think I'll proceed with Cinimace steps and perform the calculations...
Ah dang... I studied this subject in spanish language, so it's a bit more confusing to me. I understood everything except the HVAC term... so long so good though! Its getting clearer and clearer. :)
Excellent! Thank you! So I dont need to calculate the "humidity"? I'm wondering this because, in essence, the inlet and outlet temperatures of the air are not gonna be that different...
Since its a direct evaporative cooling system, open system, wont the performance be dynamic due to the...
Hello there, first thread!
My friends and I just finished building an evaporative cooler using some cellulose panels and a walmart vent. We are pumping water at ambient temperature and we need to calculate the efficiency. I know that its a ratio between the temperatures, but since we are using...
