This contest is a bit tricky. All you have to do to win is be the first to answer this question. The price will be a 1915-s buffalo nickel and some other stuff as well. In order to win, as mentioned above, be the first to answer the question, but you must show the whole solution. It's a relatively simple problem. If no one answers within a week, I will post the solution. Question: A brewery uses a 1.5" sanitary pipe with an internal diameter of 3.5 cm, and a length of 10 meters to feed the keg filling apparatus. At the end of each shift, the pipeline is CIP by circulated 80°C cleaning solution through the pipe. The solution has an average flow velocity of 5 m/s. Calculate the pressure drop in kilopascals due to friction forces across the length of the pipe. Hints: You will need to solve the mass and volumetric flow rate Assume the solution has the same properties as water as far as viscosity and density. You will need to calculate the reynoulds number You will need to use a moody chart to determine the fanning friction factor Equivalent roughness is 1.5x10^-6 GOOD LUCK!
it would be things like this that caused me to switch my course of study from engineering to History. hmmm, now that I think about it, that was a good choice.
And this must be a new method of cleaning coins as well as calculating the efficiency with which it works, right????!!!!:desk: Beats the Charles Dickens out of me! Frank
Hi zaneman...and everyone else on cointalk too. I am a long time lurker on this site, just hanging out in the background and reading the information everyone has had to share. Anyways, I saw this post and it appealed to my inner nerd (engineer and coin collector...oh man), so I guess I thought I would give it a try. Zaneman, you must be a fellow mechanical engineering student (past or present?). I attached the 'solution' I was able to come up as far as I could remember back to 2nd year fluids. Couldn't quite figure out your hint about mass and volumetric flow rates but decided to share what I was able to come up with. (Not too embarrased at my half-hazard attempt from what was still with me 2 years later...plus more of a materials science guy then thermo-fluids). Maybe there's someone else out there that can figure this problem out from here if I am completely off. Aren't engineering problems fun? Will post sometime later in the introductions forum here and share some of my collecting interests. Take care.
We have a winner! We had ever so slightly different answers, but that is due to rounding on my part. I'm not an engineering major, but will have about 12 credits of engineering after this semester (I'm in food science and technology). This stuff is fun compared to thermal, that stuff is a nightmare. Congratulations! Please pm me your address, and I'll send you some choices for your prize!
pm sent. Thanks a lot for the contest and the welcome too. Seems like a great crowd hanging around this forum. I guess I'll have to host a contest sometime soon too. There will be some coin shows coming up in late March and April in my area so I'll remember to pick up some good Canadian stuff for a contest of my own. Take care.
