It happened that during a search on the web I've found the document in the attachment and wanted to share it.http://files.engineering.com/getfile.aspx?folder=81367506-5613-4b6f-a46f-f34017f8fd03&file=Energy_stored_in_pneumatic_test.pdf
I’d need to estimate the pressure drop of an air stream through a cylinder of sand.
After a brief research I’ve bumped into Ergun equation (new stuff to me) and I’ve thought it could be fine for my needs.
The Ergun equation gives the pressure drop for unit length of a fluid flowing through...
I'm looking for emission limits in the State of California (US) for a low pressure (14 psig) steam boiler with an output of 1000 kg/hr (2200 lbs/hr) and a thermal power of 775 kW (2644 MBtu/hr). Fuel is diesel oil.
I should heat cure sandwich concrete panels (walls) in a curing tunnel.
The panels are 30 cm thick (two layers of concrete each one 7.5 cm thick, with a polystyrene layer of 16 cm in between). The tunnel has a door at each of its ends and it's loaded on a continuous basis with 5 pcs/hour. The...
I'm now involved in a project where a customer would like to install a smoke tube steam boiler in a container arranged as a boiler house. The job site is in Ontario (Canada).
The max working pressure of the boilr is 0.98 barg (14.2 psig). Thermal power is 1050 kW (107 boiler horse power)...
I know the Zukauskas’ correlation for bare tubes bundles, but I’m now looking for a correlation valid for forced convection across finned tubes bundles (staggered and in-line arrangement).
Thanks
Is anyone aware of the typical duration of the steam curing cycle for concrete railway sleepers? The european standard in force prescribes the temperature gradient and the max temperature of the cycle, but no mention about its duration.
Thanks
I’m in the need of evaluating which kind of two-phase flow pattern takes place in a horizontal 2” pipe for liquid nitrogen distribution purpose. Liquid nitrogen flow rate 130 l/min (T = 77 K, P = 5 barg).
The pipe is a vacuum jacket insulated one (length 40 m). I’m aware about the existence of...
Few days ago respectful member Artisi posted a link to a free pump book from Grundfos. Below another link for your virtual library
http://local.alfalaval.com/en-us/key-industries/dairy/pumps/Documents/Pump_Handbook.pdf
Yeah, valves can be listed amongst biggest obstacles of piggability, if not properly designed. Full bore valves, without any protrusion inside the line, should be the way to go.
I’m dealing with the sizing of an atmospheric condensate recovery tank made of stainless steel AISI 316, with a capacity of 3000 l. The vessel should collect condensate from a process that consumes 3000 kg/h of steam at 12 barg. Flash steam mass flowrate will be about 530 kg/h (approx 17.6%)...
I'd posted this question in another forum with no success. I hope this is the right place to collect some valid answer.
I need to treat water (24 m3/day on the average and 1.5 m3/h as peak) in order to remove iron ions. Actual iron concentration is 10 ppm, and I need to bring concentration down...
Interesting stuff here
http://www.fauske.com/Download/Chemical/Papers/C10.pdf
Note: You can get other papers replacing C10 with C11, C12 etc up to C31 in the address above
Good stuff from
"Microelectronics Heat Transfer Laboratory
Department of Mechanical Engineering
University of Waterloo"
http://www.mhtlab.uwaterloo.ca/RScalculators.html
I was wondering whether firetube boilers designed to work with a given pressure, would produce the same amount of steam if operated at lower pressures, or would suffer a derating in steam output.
