Baru aja nyobain nulis persamaan pake LaTeX, n ini dia persamaan LaTeX pertamaku!!
Sungguh saat2 yg bersejarah.. hihihi…
Persamaan apa hayo..??
Posted by Syeilendra Pramuditya on June 21, 2009
Baru aja nyobain nulis persamaan pake LaTeX, n ini dia persamaan LaTeX pertamaku!!
Sungguh saat2 yg bersejarah.. hihihi…
Persamaan apa hayo..??
Posted in just a story | Tagged: syeilendra | 5 Comments »
Posted by Syeilendra Pramuditya on June 20, 2009
Kemarin2 lg butuh data densitas Helium di dalem fuel rod nuklir, heran, udah kesana-kemari keliaran pake google ko ga ktemu2 yah.. ada yg punya datanya kah..? perlu neh..
Hmm.. apa itu termasuk data “rahasia” yah.. hmm aneh..

Yah daripada kerjaan mampet gara2 ga ada data, kepaksa bikin perkiraan sendiri deh.. sy pake persamaan gas ideal yg paling sederhana aja[1]:

Harusnya sih persamaan gas ideal lumayan bagus untuk dipake ngitung densitas Helium, kan Helium gas monoatomik, jadi harusnya kelakuannya ya mirip sama gas ideal kan.. biar yakin benchmark dulu lah, sama data Helium pada keadaan STP[2]:
Nilai parameter lainnya:
Trus itung deh..

Klo liat di wikipedia[3], densitas Helium (STP) tu 0.1786 g/L, wah ternyata cocok ma perhitungan gas ideal!! siip!!!
Berarti sekarang saya bisa buat perkiraan yg lumayan akurat tentang densitas Helium di dalam fuel rod dong ya! data2 yang dipake:
Itung..

Hmm.. berarti densitas Helium di dalam pellet-clad gap tu sekitar 0.00222185 g/cc dong ya..
Bener ga yah..? hmm…
Referensi:
Posted in nuclear engineering | Tagged: nuclear, nuklir, reactor, reaktor, syeilendra | 1 Comment »
Posted by Syeilendra Pramuditya on June 13, 2009
Posted in nuclear engineering, software & simulation | Tagged: delphi, freeware, nuclear, nuklir, numerics, PLTN, reactor, reaktor, simulation, software, syeilendra | Leave a Comment »
Posted by Syeilendra Pramuditya on June 13, 2009
The governing equation being used is the steady state neutron diffusion equation:
Numerical schemes being used are:
Code package:
Flowchart of the code:
Some previews:
Posted in nuclear engineering, software & simulation | Tagged: delphi, freeware, nuclear, nuklir, numerics, PLTN, reactor, reaktor, simulation, software, syeilendra | Leave a Comment »