?url_ver=Z39.88-2004&rft_id=2017041053&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=STUDI+PENGARUH+UKURAN+PEBBLE+BED+TERHADAP+TERMAL%0D%0AHIDROLIK+PADA+THORIUM+MOLTEN+SALT+REACTOR+SOLID+FUEL+%0D%0A(TMSR-SF)+MENGGUNAKAN+COMSOL+MULTIPHYSICS&rft.creator=I+Gusti+Ayu+Putu%2C+%2C+Dwi+Ekasari&rft.subject=530+Fisika&rft.description=Pengembangan+reaktor+Thorium+Molten+Salt+Reactor+Solid+Fuel+(TMSR-SF)%0D%0Amemerlukan+pemahaman+mendalam+tentang+karakteristik+termal-hidrolik+seperti%0D%0Asuhu%2C+kecepatan+aliran%2C+dan+tekanan+di+dalam+teras+reaktor.+Penelitian+ini+bertujuan%0D%0Auntuk+menganalisis+pengaruh+ukuran+diameter+pebble+bed+terhadap+distribusi+suhu%0D%0Adan+tekanan%2C+serta+mengkaji+pengaruh+laju+awal+fluida+terhadap+kecepatan+aliran%0D%0Afluida.+Simulasi+dilakukan+menggunakan+modul+Heat+Transfer+in+Fluids+dan%0D%0ALaminar+Flow+pada+aplikasi+COMSOL+Multiphysics.+Hasil+simulasi+menunjukkan%0D%0Abahwa+pebble+bed+6+cm+efektif+dalam+menyerap+dan+mendistribusikan+panas%2C%0D%0Adengan+peningkatan+suhu+tajam+dari+inlet+hingga+titik+ke-4%2C+sementara+aliran+fluida%0D%0Atetap+stabil+meskipun+terjadi+penurunan+kecepatan+dan+tekanan.+Pebble+bed+9+cm%0D%0Amenunjukkan+peningkatan+suhu+yang+stabil+dari+inlet+ke+outlet%2C+dengan+penurunan%0D%0Akecepatan+fluida+akibat+hambatan+dan+tekanan+yang+turun+konsisten%2C+menghasilkan%0D%0Aefisiensi+yang+baik.+Pada+pebble+bed+12+cm%2C+suhu+meningkat+dari+873%2C02+K+di+inlet%0D%0Amenjadi+958%2C72+K+sebelum+sedikit+turun+di+outlet.+Namun%2C+kecepatan+fluida%0D%0Amenurun+drastis+dari+0%2C06+m%2Fs+menjadi+0%2C01+m%2Fs%2C+dan+tekanan+turun+signifikan%2C%0D%0Amenandakan+penurunan+efisiensi+perpindahan+panas.Persentase+perbedaan+suhu%0D%0Atertinggi+antara+pebble+bed+6+cm+dan+9+cm+adalah+0%2C7%25%2C+serta+antara+pebble+bed+6%0D%0Acm+dan+12+cm+sebesar+1%2C7%25.+Penurunan+persentase+tekanan+terbesar+untuk+pebble%0D%0Abed+6+cm+sebesar+1%2C6%25%2C+diikuti+pebble+bed+9+cm+sebesar+1%2C4%25%2C+dan+pebble+bed+12%0D%0Acm+sebesar+1%2C5%25.+Penurunan+persentase+laju+aliran+fluida+awal+sebesar+0%2C09%25+antara%0D%0Apebble+bed+6+cm+dan+9+cm%2C+serta+0%2C26%25+antara+pebble+bed+9+cm+dan+12+cm.+Pebble%0D%0Abed+6+cm+terbukti+paling+efisien+untuk+menjaga+efisiensi+dan+keselamatan+operasi+reaktor+TMSR-SF.+%0D%0A%0D%0AKata+kunci+%3A+COMSOL+Multiphysics%2C+TMSR-SF%2C+termal+hidrolik%2C+pebble+bed%2C+variasi+diameter+%0D%0A%0D%0A%0D%0A%0D%0A%0D%0A%0D%0A%0D%0AABSTRACT%0D%0A%0D%0AThe+development+of+nuclear+energy%2C+particularly+in+the+Thorium+Molten+Salt%0D%0AReactor+Solid+Fuel+(TMSR-SF)+requires+a+deep+understanding+of+thermal-hydraulic%0D%0Acharacteristics%2C+including+temperature%2C+flow+velocity%2C+and+pressure+within+the%0D%0Areactor+core.+This+research+aims+to+analyze+the+influence+of+pebble+bed+diameter+on%0D%0Atemperature+and+pressure%2C+as+well+as+to+examine+the+impact+of+initial+fluid+flow%0D%0Aconditions+on+fluid+velocity+within+the+TMSR-SF+reactor+core.+Simulations+were%0D%0Aconducted+by+the+Heat+Transfer+in+Fluids+and+Laminar+Flow+modules+in+the%0D%0ACOMSOL+Multiphysics+application.+The+simulation+results+show+that+the+highest%0D%0Atemperature+difference+percentage+between+the+6+cm+and+9+cm+pebble+beds+is+0.7%25%2C%0D%0Awhile+between+the+6+cm+and+12+cm+pebble+beds%2C+it+is+1.7%25.+Percentage+the+highest%0D%0Apressure+drop+over+time+was+observed+in+the+6+cm+pebble+bed+at+1.6%25%2C+followed+by%0D%0Athe+9+cm+pebble+bed+at+1.4%25%2C+and+the+12+cm+pebble+bed+at+1.5%25.+Additionally%2C+the%0D%0Apercentage+difference+off+the+initial+fluid+flow+rate+decreasing+was+recorded+at%0D%0A0.09%25+between+the+6+cm+and+9+cm+pebble+beds+and+0.26%25+between+the+9+cm+and+12%0D%0Acm+pebble+beds.+The+6+cm+pebble+bed+diameter+provides+more+optimal+thermalhydraulic%0D%0Aperformance%2C%0D%0Aparticularly%0D%0Ain%0D%0Aterms%0D%0Aof%0D%0Atemperature%0D%0Astability%0D%0Aand%0D%0Afluid%0D%0Aflow%0D%0A%0D%0Aconsistency%2C%0D%0A%0D%0Awhich+are+crucial+for+the+efficiency+and+safety+of+TMSR-SF+reactor+operation.+%0D%0A%0D%0AKey+words%3A+COMSOL+Multiphysics%2C+TMSR-SF%2C+thermal+hydraulics%2C+pebble+bed%2C+diameter+variations+&rft.publisher=FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM+&rft.date=2024-11-20&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F80833%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F80833%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F80833%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++I+Gusti+Ayu+Putu%2C+%2C+Dwi+Ekasari++(2024)+STUDI+PENGARUH+UKURAN+PEBBLE+BED+TERHADAP+TERMAL+HIDROLIK+PADA+THORIUM+MOLTEN+SALT+REACTOR+SOLID+FUEL+(TMSR-SF)+MENGGUNAKAN+COMSOL+MULTIPHYSICS.++FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM+%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F80833%2F