Recent content by Amjad78

Dear Thank you for your response, i am using the simplest material of Pyrex Rods (i am using the VERA Benchmark problem case 17x17 lattice for validation) in which Pyrex rods are composed on B10, B11, O16 and Si. when i used the material of Pyrex rod as non-Burnable then the code is running good...

I already search many literature Sir the NCOMB is the number of depleting materials but in my situation the code is not taking the MIX of BP rods as a burnable. when i make the BP rods MIX non-Burnable the error disappear so in my input i want to burn the BP Rods material as well which actually...

Thank you So Much for your Kind Reply, i want to model PWR Core (Assemblies) using Dragon code, i read the literature but i am beginner for this code. I modeled the Assembly with only fuel pins but the error with reference value is very high that is the relative error in a simple assembly is...

Thank you So Much for your Kind Reply, i want to model PWR Core (Assemblies) using Dragon code, i read the literature but i am beginner for this code. I modeled the Assembly with only fuel pins but the error with reference value is very high that is the relative error in a simple assembly is...

Hello Everyone, Hope you will be with good health in this situation. I am Ali and i need some help regarding DRAGON/DONJON Code for PWR Analysis if anyone help me i will be very glade Regards Ali

FR Outside clad diameter is 1.0 cm, clad thickness is 0.07 cm, UO2 pellet diameter is 0.843 cm rod array is 15x15, lattice pitch is 1.33 cm, assembly pitch is 20.03 cm. I THINK YOU NEED THIS INFORMATION SIR. Regards

Thank you sir for your kind reply, actually my model is for PWR core with 121 FA 15x15 lattice have 20 guide tubes, and one instrument tube. The core height is 290 cm the material for grid is GH-169A, There are 8 grids for each fuel assembly, of which 7 grids are within the core. I hope this...

Hello i am using MCNPX i have this warning message in output. Can you please tell me what dose this message mean and what is the reason of this warning message. 1299 fission cell elements had no neutron tracks entering: 1299 fission cell elements had no neutron collisions 1299 fission cell...

my design is PWR 300 MWe core 121 FA and 15x15 array.

Sir actually i am modeling the quarter core but i am not understanding the location and position of the grids where it is located and what is the shape to be modeled and where in the core.

Sir actually i am modeling the quarter core but i am not understanding the location and position of the grids where it is located and what is the shape to be modeled and where in the core.

want the mcnp model of the grid. i modeled the core but without grid

Hello everyone, i am Ali a PhD scholar i need some help regarding MCNP, i wand to model a pwr core with spacer grid but i don't know how to model spacer grid can anyone help? Regards

Dear Astronuc thank you for your kind reply Tally normalized to 1 or normalized to average value of the F7 tally? and can you tell me any alternate method of calculating Power distribution please.Regards Amjad

Hello Everyone Hope you will be fine I am trying to estimate assembly wise power distribution of pwr core. Can anyone let me know if F7 tally correspond directly to power distribution or else i need some additional calculations?