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Questions related from Shaikat Debnath
A utility-scale PV inverter is in a hot mining town with poor air quality needs better cooling. The inverter has a hybrid cooling system with a mix of air-cooling and liquid cooling. I am...
25 September 2024 4,056 3 View
For a grid connected BESS (lets say 100 MW/200 MWh system, LFP battery), if we charge the BESS in such a way that whenever we can access power from the solar that will charge the BESS. Hence it...
02 August 2024 10,635 7 View
I did the DOS calculation of a compound. The up-spin states of that material is different than the down-spin states. What does it indicate? Thank you in advance for your kind suggestion.
01 September 2022 9,084 3 View
For example, if the inverter is fed with a 100 kW DC battery and the inverter has to run with 0.9 power factor, it will produce 90 kW of AC power, and the rest 10 kVAr (assuming 100% efficiency of...
12 October 2021 5,909 9 View
In the attached plot, it is shown that C has density in the conduction band but Cl has no density in the conduction band. What does it signify? Also, there is overlap of electron density of...
03 February 2020 404 0 View
I can find graphite in materials stuido's library. But nothing regarding borophene. It would be great if anybody can help. Thank you in advance
20 May 2019 6,039 4 View
In times of water content test of HFO I have seen to mix benzene with HFO first in equal mixing ratio. Is there any other compound other than benzene, which can be used instead of benzene to...
06 October 2015 2,311 1 View
I am looking for data on 7 atoms Li and Na of D5h symmetry's binding energy, ionization potential, electron affinity and homo-lumo gap. If anyone can help me here, it would be really greatThanking...
14 May 2015 1,334 2 View
I want to calculate the dielectric function and optical conductivity of Al and Cu and some of their alloys. Now, for that I had chosen a 13 atoms icosahedral strcuture of Al and Cu. But I think,...
27 February 2015 5,254 1 View
I need to know the spin multiplicity, binding energy, ionization potential, electron affinity homo-lumo gap and optical absorption in eV/Hz of 13 atoms Al and Cu clusters of icosaheron symmetry....
09 February 2015 7,402 1 View
I am only aware of doping into an intrinsic semiconductor. Most probably doping into a metal conductor (lets say silver/aluminium/copper): does it actually make any sense? Just want to know. Any...
23 January 2015 4,774 4 View
I want to know the potential of a nano-alloy for solar cell and catalysis application. I don have any experimental set up and can only do DFT calculations. So, I have picked a 7 atoms structure of...
09 January 2015 7,559 1 View
I am not finding any report on sodium or, lithium nano-fabrication. Reports on any shaped (for example nanowire, spherical etc etc) Na/Li/K nanoparticle fabrication in the size range of 10-130 nm...
04 January 2015 5,073 4 View
I need to know the binding energy, vertical ionization potential, vertical electron affinity and homo-lumo gap of 7 atoms lithium clusers of decahedral shape, both the theoretical and experimental...
26 November 2014 1,213 2 View
In my DFT calculation of a 13-atom bimetallic cluster, I have got the HOMO energy is higher than the LUMO energy, resulting negative HOMO-LUMO gap. It is reported that stable structures have...
14 October 2014 9,493 10 View
My jpg images are of 92 dpi, but I need to change it to 300 and 600 dpi. Can anyone please tell me how I can do this?
20 June 2014 8,903 13 View
I want to store Sodium and to keep it free from oxygen, need to put it inside of mineral oil. So, can anyone please suggest me which specific mineral oil I should choose and any suggestion on...
10 February 2014 7,509 1 View
Sodium oxide nano-spheres of 100-120 nm diameter, do they have any importance in any application?
01 January 2014 9,554 0 View
I want to get sodium from Sodium Azide. So, if I heat it up to its decomposing temp 300 C, will I get pure sodium and Nitrogen gas will go away?
28 December 2013 8,973 3 View
I am working with 13 atom Icosahedral Ag cluster. The prime attraction force among these 13 atoms that keep them together is metal-metal bond, but is there any van der waals force also involved in...
08 December 2013 1,562 5 View
Nanoclusters can be of different shapes. Which shapes have been verified as the stable shape of Sodium nano-clusters in between 10-100 atoms? About the Ag-Na or, Au-Na alloys, which shapes are...
13 November 2013 4,476 0 View
With a nano-colloid maker device, I want to explode a sodium wire in an Argon environment. The supply voltage might be around 25KV for few microseconds. Might there be any risk of hazard?
05 November 2013 6,619 1 View
Calculations show that even if I make the vacuum chamber as low pressure as 10^-8 atm, still there is lots of oxygen. Can anyone suggest any chemical/any other process to make the inside of a...
30 October 2013 1,508 21 View
