Upendra Singh

7 Questions 17 Answers 0 Followers

Questions related from Upendra Singh

How can we reduce vapor formation from liquid nitrogen at higher pressure to lower pressure through JT valve in order to cool it??

We are trying to cool 73.2K 700m bar nitrogen to 59.3K by passing throgh JT at 60 m bar in vaccum insulated tank. Idea is to get 99.5% liquid (only 0.5% vapor). Radiation heat to tank is reduced...

01 January 2019 5,634 0 View

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...

10 October 2018 1,793 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.

08 August 2017 2,661 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

05 May 2014 553 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.

06 June 2013 7,987 0 View

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

These crystals are found by cooling a solution containing NH4Cl.

03 March 2013 3,886 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.

12 December 2011 1,832 0 View