Does composition prevents the agglomeration?

What are the methods during synthesis procedure to prevent the agglomeration? Does compositing the nanoparticles decreases the tendency towards agglomeration?

03 April 2017 4,033 4 View

Is there any general solution for the temperature cross problem in heat exchanger simulation (eg. using Aspen Hysys)?

I'm going to find some probable solutions to my problem in Hysys simulation which is Temperature Cross in a heat exchanger? Could you please help me how to deal with the matter?

01 February 2017 2,350 5 View

What's the effect of UF on the TDS and TH?

What's the effect of UF on the TDS and TH? reduction or increase? do you have any estimation on that?

31 December 2016 1,251 0 View

Is gas/gas gravity separation possible? What conditions and restrictions are needed?

Is there any order of magnitude for the density difference to claim on gas/gas gravity separation? Are the P&T important? For instance, I'm facing a huge drum filled with N2 & O2, fixed in...

10 November 2016 9,544 9 View

Can you suggest an applicable method to deposite the titania on the stainless steel 304 using Titanium butoxide as a Ti precursor?

I have tried sol-gel method using the PEG 2000 and 20000 and the final result was yellow agglomerated granules on the surface without any connection to the substrate! I have some limitations such...

05 June 2015 4,011 3 View

What notes and rules should we obey using recycle logic at aspen hysys?

I have a simple simulation of Haber process and just after attachment of recycle stream the simulation would be diverged. What's the major note to insert a recycle at a simulation?The file is...

31 December 2014 9,241 3 View

How can I get to a oxidation-reduction database for different solutions?

I need something like a Handbook to find the oxidation-reduction level of different materials such as dyes, and contaminates how can I find such thing?

31 December 2014 6,723 6 View

How can I interface Aspen Hysys with matlab?

I want to link matlab with chemical process eng software "Aspen Hysys" I found I should use OLE automation for this purpose but I don't know exactly what's that?!

11 December 2014 3,361 8 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View