How many time is needed to vacuum degassing?

More Yeonghun Yun's questions See All

How to define anode and cathode in 2 electrode system?

I want to use Metal oxide for cathode, carbon for anode. In that case, is that correct to connect cathode - Working electrode, Anode - Reference&Counter electrode ?

07 August 2019 5,077 3 View

How to measure Voltage window of Supercapacitor?

I want to make a Asymmetric supercapacitor. So it can have more Working voltage limit than Symmetric supercapacitor. But I wonder there will be electrolyte decomposion, and how to conclude the...

07 August 2019 8,048 5 View

How to measure electrode capacitance?

I will use Carbon material for anode and Metal oxide for cathode with In-plane structure. In that case, Can i measure each of anode, cathode capacitance and all of supercapacitor's capacitance?

07 August 2019 8,332 4 View

How to analyze transparency PVDF-TrFE film?

Actually I'm using a PVDF-TrFE(TrFE 30%) powder with solvent(DMF or MEK). My goal is to make over 240micron meter PVDF-TrFE films. Before that process, I need to analyze the films figure. With...

20 August 2018 1,962 2 View

How to analyze transparency PVDF-TrFE film?

Actually I'm using a PVDF-TrFE(TrFE 30%) powder with solvent(DMF or MEK). My goal is to make over 240micron meter PVDF-TrFE films. Before that process, I need to analyze the films figure. With...

07 August 2018 3,838 2 View

Thick P[VDF-TrFE] film is possible?

Hello all, I'm working on making a specific central frequency by PVDF-TrFE films(piezo-electric material). By the way, for making thicker than 200 micron of PVDF-TrFE films, there are many...

06 July 2018 7,858 0 View

If I make a transducer with Piezo-polymer(stacked Top&bottom side with Au), is there any needed factor to electrode design?

Actually what I needed is d33 thickness vibration mode. I hope it can make a Ultrasound with PVDF-TrFE.

05 June 2018 635 0 View

What are the countries most affected by extreme rainfall as a result of climate change?

Increased heat, drought and insect outbreaks, all associated to climate change, have increased wildfires. Decreasing water supplies, declined agricultural yields, health impacts in cities owing to...

01 March 2021 7,168 9 View

How to separate water from glycerol solvent in a solvent recovery vacuum distillation column?

I am currently doing my third year design project. I have been assigned to design a glycerol recovery column in vinyl acetate monomer production. The process unit before the recovery column is an...

01 March 2021 9,525 4 View

What is recommended for solid domain in ANSYS FLUENT?

Should I mesh the solid domain ? or should I use wall thickness? or Shell conduction? for Heat Transfer between two fluids of a Heat Exchanger. what is recommended?

01 March 2021 9,785 3 View

Heat exchanger with liquid Nitrogen as coolant?

I want to cool Natural Gas from 195 Kelvin to 138 Klevin in a heat exchanger by using liquid nitrogen as the coolant medium. When entering the heat exchanger, the liquid nitrogen will have a...

01 March 2021 6,450 5 View

How can i resolve the "final solutuin is not converged" error in Comsol for my heat transfer simulation??

I have been trying to simulate heat transfer problem in Comsol 5.5 for long time but it always throw an error stating: "Failed to find a solution. Maximum number of Newton iterations...

28 February 2021 8,626 3 View

How to remove fatty material from plant extract?

The resultant solid was partitioned three times with 250 ml of petroleum ether (40-60/c) to remove any fatty material and evaporated to dryness.

28 February 2021 9,464 2 View

1 nm thick MgO thin-film to be deposited on Si wafer using thermal evaporation. What will be the optimum deposition conditions?

Favourable conditions of base pressure, rate of deposition. Also, by which characterisation technique to be used to verify the thickness of the deposited film.

28 February 2021 3,640 3 View

Exit velocity of natural gas from pressurized tank?

Hi Guys. I'm a mechanical engineer and have a bit trouble, would be very glad if you could help me with my questions. I have a pressurized tank which contains Natural Gas at 200 Bar and 293...

26 February 2021 6,253 3 View

Anyone that can help with Maxquant TMT16plex which is missing?

Hi I am very new to proteomics analysis. I have got raw files from core facility running thermofisher TMT 16plex 4 hours. I cannot find on maxquant the option TMT16Plex there is only up to 11...

25 February 2021 1,675 3 View

How to properly calculate the fluid solid heat transfer between polypropylene matrix and glass fiber in a porous medium?

I'm building a cfx model of thermoplastic pultrusion process on ansys and i have a doubt on how is the proper way to set this parameter in a porous medium

24 February 2021 1,915 1 View

Kadhim Kareem

Interesting question

Hamit Can

Conference Paper INFLUENCE OF VACUUM DEGASSING ON STEEL CLEANLINESS

http://www.sunflagsteel.com/Sunflag%20Iron%20and%20Steel_files/VACUUM%20DEGASSING.htm

V. N. Ravi Kishore V.

It will depend on the volume of the solution, wattage of the pump and the diameter of the tube connecting the pump and the vessel which houses the solution.