Lots of bona fide equipment manufacturers give practical figures for such heat losses, for example Fig. 2.9.1 in the Spirax Sarco Learning Centre (www.spiraxsarco.com/learn) gives a pretty good graph showing heat loss against temp. diff. for horizontal and vertical flat surfaces. See Module 2.9...
Spirax Sarco has a module on boiler ratings and boiler horsepower in their website learning centre. Block 3, module 3.5 I think. Not too sophisticated but it might be worth a look
Throttling calorimeters are more at home in the laboratory than the average steam plant - they're fiddly to use and not that accurate. Your best bet is to fit a proprietory steam separator in the steam line before the process control equipment. That way, even though you don't know the quality of...
sandy2023,
I suggest you ask Alfa Laval again . . about their TS6M and TS20M PHEs. These are designed specifically for steam primary use, and will allow the steam space to be flooded with sub-cooled condensate. Alfa laval should be able to predict your needs with their software.
MVD
I've put together a simple Excel spreadsheet based on tables in ENCYCLOPEDIA OF CHEMICAL PROCESSING & DESIGN written by JOHN McKETTA of University of Texas. The results look pretty good to me. If you want, post your email address.
I can find standards that give me weight and dimensions of pipe, but I don't seem to be able to find information on what the pressure/temperature limits of certain pipes are . . specifically Schedule 40 pipe. Can anyone help please, or can you put me in the right direction?
Luciom,
Further to hiteshvakil's reply, please be careful - a simple orifice plate may not give you the accuracy you require at your low flowrates. These meters only have a reliable turndown of about 4:1, this being due to the square root relationship between flowrate and pressure drop. This is...
Luciom,
Agreed -turndown is not a problem here. Your 4" vortex meter is oversized, this almost certainly means that the necessary velocities for efficient vortex shedding are not being achieved. For a vortex meter, as said above, 3" is a better choice for this application, why not go...
