Recent content by jordanb

Umax = 0.25

Im expecting to have a result of around 150°C. Im currently getting a result of 192°C which seems unrealistic that over 5meters of stainless steel, only 8°C of heat is lost?

Thank you for spotting that, that is an error i have since noticed. I carried the wrong value down. However, this does not make the result any better.

I have created a flow simulation to second back up calculations. The simulation is giving a result of 150°C ± 5°C

I have completed a different problem using the above as a template. Im not too happy with the results. Can anyone see what ive done wrong?

No problem, ive found it!

Thank you for this. I have digested the information as best i can. I have tried to apply this to another example however, i cant see where the length of the ducting is factored into the formulas?

Understood. Im trying to understand so please bare-with my incompetence. So with the current values what would i need to calculate next?

1) p/RT P = 101325 Pa R = 287.058 J T = 304.15 K 1.16 g/l3) 46300 I have tried to copy my workings from a word doc with no prevail

1. 2.03 g/l 2. 1.90 x 10^-4 gm/cm-sec 3. 40000

Thank you for your reply. Air pressure can be assumed as 1bar. Length of the pipe being 5 meters (sorry i missed that off!) Horizontal natural convection. I have researched both Thermodynmaic an engineering approach 4th edition and Transport Phenomena but i was hoping for some guidance as i...

Hello, I am looking for assistance regarding temperature losses along a length of pipe with hot air entering one. I need to know the temperature leaving the other end of the pipe. I have been able to calculate the W/m-K (in theory but stopped a i knew the answer wasnt what i needed) losses but...