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Questions related to Heat
have to make a brief analysis and capacity of the plant is given and operating pressure is given only? (design of Kettle reboiler in gas purification plant of capacity of 100 MMSCFD, operating...
07 January 2023 6,364 1 View
I tried writing a udf for the turbulence model needed to validate a study. The wall boundary conditions (epsilon and f) specified for the v2-f model are available in the code I wrote. While I get...
12 December 2022 6,615 1 View
Dear, Now I am working on the process modeling for CO2 capture, but not sure about the typical industry diameter for a packing type absorber and stripper. Could anyone give any suggestions? I...
17 November 2022 7,862 0 View
My question is that if we want to remove CO2 from a gas stream that contains 20% O2 and less than 5% CO2, what are the best solvents list? The solvent should be able to remove CO2 in very low...
16 November 2022 9,838 5 View
Hi I am trying to simulate evaporation of gas R134a using Lee model in VOF, the problem is during the boiling process the bubble forms but the temperature of the liquid is increasing more than the...
24 October 2022 6,626 2 View
I need to find the electronic states of strontium hydroxide. while, the binding energy difference is small.
23 October 2022 302 1 View
I have modelled solid slab and I have assigned bottom face of slab as Elastic support but that elastic support is needed to be modelled for compression only spring.
17 October 2022 4,378 3 View
In our radiation laboratory we routinely trap respired 14CO2 from soil, after incorporating 14C labelled substrates, using NaOH traps which can then be mixed with scintillation fluid and activity...
14 October 2022 7,163 1 View
Dear, I am looking for a list (excel or else) of a large variety of surfactants (from natural origin if possible). If anyone knows a website that references a lot of surfactants, It would be very...
11 October 2022 1,948 3 View
This is in reference to the diesel fuel specification with respect to China VI, Euro VI, BS VI and Wordwide Fuel Charter 2019 wherein the Flash point varies from 35 to 60 deg C. While flash point...
12 September 2022 7,690 1 View
I must remove (1) steam and (2) dust particles from flue gases. But there is too much pressure drop if I use multiple equipment for both (e.g. a steam condenser/ heat exchanger and cyclone/ ESP/...
12 September 2022 5,275 3 View
I have determined the activation energy of XLPE material using TGA by iso-conversional method (KAS) at conversion of 5-10% . But now it is very doubtful which value of Ea should be used. Moreover...
23 August 2022 1,422 0 View
When calculating C input, how much rhizodeposition by cotton and green gram root residue should be taken into account?
01 August 2022 3,221 0 View
Reported procedures mainly use fuming nitric acid (concentration >86 %) with or without conc. H2SO4 to nitrate quinazolineones, however the only available concentration for me is 69%, can it...
12 June 2022 7,047 1 View
I want use DAS method to reconstuct the image with the signal data obtained at a 10mm circular scanning radius. The data and matlab code is attached in the back. I think there's something wrong...
12 June 2022 8,870 0 View
Hello, I was wondering if there is any standard procedure to chemically synthesize glycolaldehyde from ethylene glycol, without needing enzymes. Thanks
10 June 2022 8,766 0 View
Hi, everyone. I have a question about the photocatalyst related to the Z scheme heterojunction. First of all, sorry for my poor English. The research that I read is as follows: [Hierarchically...
24 May 2022 9,291 5 View
I calculate a set of crystallite size values with microstrain, but my strain value is increasing with increasing crystallite size. what is the reason for that?
20 May 2022 407 1 View
What degree of crystallinity can one expect to observe in PET if it is heated to its melt temperature and left to cool to room temperature without any controlled cooling? Thanks.
29 April 2022 1,134 0 View
Hi everyone, I am currently working on a pollution assessment in sharks in a marine ecosystem. I kindly need help on the permissible maximum heavy metal limit of Aluminium and Iron on fish. A...
02 February 2022 1,239 4 View
Hi everyone, I have some cell cultures of brain tumors, which contain a high amount of dead cells after detaching them with accutase (only 30% living). I tried to isolate proteins and performed a...
04 January 2022 621 3 View
I have made metal nanoparticles ~50nm (probably also has some surface oxide) when it is dispersed in acetone, it settles down quite fast, but when it is dispersed in ethanol, some particles settle...
03 November 2021 2,295 4 View
In a welding-based simulation using Abaqus I would like to remove nodes/elements which did not cross the melting temperature...or solidify after applying heat... Can some one guide me...
18 September 2021 5,091 0 View
I have a Parr reactor (600 ml) and want to do a methanol explosion of rice straw (similar to steam explosion). Just to start, i am heating up the soaked rice straw to 170C, and instantly releasing...
15 September 2021 1,188 1 View