l have a tank 2m ×2m×2m. So my volume is 8m3. l want to be able to to siphon the liquid at 16m3/h, using it as a purge line for my hotwell. l could have installed a pipe and a valve at a bottom of the tank, but the problem this will need a shutdown. My question is there any equation to calculate...
This is one steam line from the superheater then branches as ahown to each tray and at the end is a steam trap, which directs condensate to the steam condensate tank. The pressure gauge is installed as shown and reads 0.5bar gauge; and the pressure in the vessel is -1 bar gauge (vacuum). Just...
We use sparging steam fo agitation and stripping in a deodorizer column. Is there a way l can calculate steam consumption of the continuous deodorization column. We use superheated steam, we superheat saturated steam from boiler house using thermic fluid in a superheater. Attached is a schematic...
Thank you guys. Now l understood the principle. Yes throttling a valve definitely reduces flowrate. Mass is conserved, as throttling a valve increases pressure drop/back pressure hence flowrate upstream a valve will decrease too. For a pump the pump curve will shift left, as the pump head will...
Thank you. yes l understand the principle of conservation of mass/ mass balance. But surely opening a feed valve to a vessel leads to more mass entering a vessel. Conversely, 2 flowmeters placed before and after a restricted valve will read differently.
l saw this article on LinkedIn, and applying this theory to practical, didn't add up. The way we reduce flowrate to a vessel, either for a liquid or steam is by restricting flow, increasing pressure drop and resulting in a lower flowrate downstream of the valve. ln this case it seems, for liquid...
l have a similar loop, on the outlet of the tank. l understand the siphon will act as a pump to suck liquid hexane frome solvent-water tank to hexane tank underground. My question is in this case, can't we just let the liquid hexane overflow whenever the liquid level is high enough. Why is it...
Thanks Snickster. l get it now, assuming there is no steam pressure or its low, then the oil can get in the direct steam holes and flow to the steam line. Pretty much it acts non return valve.
Sorry my bad, its a stripping steam line, direct injection of steam to the oil for purposes of stripping and agitation. Can that loop somehow eliminate condensate from live steam?
Goodday. l have a vessel heating edible oil using thermic fluid through a heating coil. The inlet of the thermal fluid the pipeline is looped, l was wondering whats the purpose of looping. See attachment!
we mix using an agitator, 30rpm. We fill oil to a fixed volume, then add phosphoric after and mix using an agitator for 20-30mins. But l am questioning the effectiveness of mixing?
Goodday. What is the minimum mixing ratio in a batch process? Say l have a 10 000L of crude oil and l want to add 0.1% phosphoric to the oil. To what volume should l dilute my acid to get effective mixing in a batch mixer? l figured if l mix 10L of acid to 10 000L of oil is too much of a volume...
Thanks guys, finally got the pump curve from the company. Hope our conversation will help someone else. For new engineers like me we are sometimes confused with data on nameplates and whats happening physically so. As you can see, with given information on the pump of head 40m and capacity...
Managed to get qvc people on whatsapp number. Here is their response:
"At duty condition it is about 38% maximum for this pump is 58% approx."
Just wondering how they obtained the 38% on duty point, meanwhile we calculated it as 17.3%. Not sure if the head in the equation will include system...
