What is min pressure drop required in order to cool air by expanding in axial turbine. Difference in temp 150 degree. Mass flow 600 kg/hr. ??

Turbo expanders cool air from 450K to 300K. We are planning to use turboexpanders inorder to convert heat into work in interstage of compressors to cool air without much pressure loss. Air flow...

09 October 2018 1,737 2 View

How to supress CH4 generation in syn gas in 30 atm pressurised steam gasification with CaO as absorbant for Rice Husk fired FBC gasifier.

Syn gas generation in pressurised FBC gasifier.

07 August 2017 2,601 10 View

Retention time for gaseous Cl2 to completely react with schiometric amount of CaCO3 at 500 degrees with laminar flow of gas in a rotating tube?

CaCO3 is 150 mesh powder. Reaction kinetics model has to be determined

04 May 2014 487 2 View

Will solid ammonium carbonate be formed by mixing flue gases to gases produced by hydrolysing 60% urea and cooling to 37 degrees?

Hydrolysys of urea produces mixture of NH3, CO2 and H2O for temperature greater than 135 degrees Celsius.

05 June 2013 7,878 0 View

How to purify NH4Cl crystals from 96% to 99.5%?

These crystals are found by cooling a solution containing NH4Cl.

02 March 2013 3,830 14 View

what are operating conditions for reaction of Sodium Silicate and carbon dioxide ??. ( Gas Flow, temperature and duration of reaction)

When carbonisation of Sodium Silicate is done with CO2, Sodium Carbonate forms and silica is precipitated.

11 December 2011 1,773 0 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

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

Does the pressure(-600 mmHg) affects pH?

When I conducted the degassing experiment using decompression under anaerobic condition(and I used ferrous based chelating agent), the oxidized ferric were observerd. So, could you tell me the...

03 March 2021 4,892 5 View

Why can't make aluminum nitride film successfully by use sputter?

We use reactive sputtering process to make aluminum nitride film, and want to make c-axis aluminum nitride film on a silicon substrate, but the crystal orientation cannot be seen with...

03 March 2021 7,975 3 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

How two melting peaks in DSC of polypropylene can be merged into one crystallization peak?

The figure shows DSC cooling (blue) and 2nd heating (green) curves (step: 10 K/min) for a commercial sample supplied as Atactic Polypropylene (APP). The heating curve illustrates two major...

03 March 2021 5,857 3 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View