ROCHMAH, NI'MATUR (2021) ANALISIS PERFORMA CYCLE GAS COOLER E-34302 KONDISI EXISTING DAN NEW PADA TRAIN 3 POLYPROPYLENE PLANT PT CHANDRA ASRI PETROCHEMICAL. S1 thesis, Universitas Mercu Buana Jakarta.
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Abstract
Polypropylene plant 3rd train of PT Chandra Asri Petrochemical is a plant that produces impact copolymer products from reactor 3B. The production process begins with a chemical reaction in the reactor 3B (C-34301). The cycle gas cooler E-34302 is an equipment with critical role in the polymerization process. Polymerization is close loop cycle and produce a cycle gas that need to be cooled before re-entering reaktor. The process of heat transfer is carried out by cycle gas cooler, a single pass shell and tube heat exchanger. Cycle gas is circulated in the tube side, then cycle water is circulated by counter current flow in the shell side. The set point is meet the design recommendation of Tho 55 0C. In 2019, a new cycle gas cooler E-34302 was installed with design modifications and improvement but there is no performances comparation analysis of the two equipment. The analysis was performed by calculating U value, fouling factor, and effectiveness. The analysis found that effectiveness of new cooler is higher than the existing. The highest value of new cooler is 87% and the lowest is 65%. The highest effectiveness of existing cooler is 76% and the lowest is 43%. The correlation between flow rate and effectiveness is that fewer of cycle gas circulated into cooler than we had the higher effectiveness from heat transfer process. Keywords: heat transfer, cooler, heat transfer coefficient, fouling factor, effectiveness Polypropylene plant train 3 PT Chandra Asri Petrochemical adalah plant yang memproduksi impact copolymer product (ICP) pada reaktor 3B. Proses produksi berawal dari reaksi kimia di dalam reaktor. Cycle gas cooler E-343012 adalah equipment yang berperan penting dalam keberhasilan proses polimerisasi pada reaktor 3B (C-334301). Polimerisasi berlangsung close loop menghasilkan gas sisa yang memerlukan pendinginan sebelum masuk kembali kedalam reaktor. Proses perpindahan panas dilakukan di dalam cycle gas cooler, heat exchanger berkonstruksi shell and tube satu laluan. Cycle gas disirkulasikan dalam tube sedangkan cycle water disirkulasikan counter current dalam shell. Set point yang dituju adalah Tho yang memenuhi kriteria rekomendasi desain, yaitu maksimal 55 0C. Pada tahun 2019 dilakukan instalasi new cycle gas cooler E-34302 dengan modifikasi dan improvisasi desain namun belum dilakukan analisis performa cooler baru dibandingkan existing. Analisis dilakukan dengan menghitung nilai U, Rf, dan effectiveness. Dari analisis didapatkan effectiveness cooler baru lebih baik dari cooler existing, nilai tertinggi 87% dan terendah 65% dalam keadaan normal running. Sedangkan cooler existing nilai tertinggi 76% dan terendah 43%. Hubungan antara flow rate dengan effectiveness berbanding terbalik, semakin kecil flow rate cycle gas yang disirkulasikan kedalam cooler maka effectiveness semakin meningkat. Kata kunci: perpindahan panas, cooler, koefisien perpindahan panas, fouling factor, effectiveness.
| Item Type: | Thesis (S1) |
|---|---|
| NIM/NIDN Creators: | 41318120059 |
| Uncontrolled Keywords: | perpindahan panas, cooler, koefisien perpindahan panas, fouling factor, effectiveness. |
| Subjects: | 000 Computer Science, Information and General Works/Ilmu Komputer, Informasi, dan Karya Umum > 000. Computer Science, Information and General Works/Ilmu Komputer, Informasi, dan Karya Umum > 006 Special Computer Methods/Metode Komputer Tertentu > 006.3 Artificial Intelligence/Kecerdasan Buatan > 006.31 Machine Learning/Pembelajaran Mesin 600 Technology/Teknologi > 620 Engineering and Applied Operations/Ilmu Teknik dan operasi Terapan > 621 Applied Physics/Fisika terapan > 621.8 Machine Engineering, Machinery/Teknik Mesin |
| Divisions: | Fakultas Teknik > Teknik Mesin |
| Depositing User: | Dede Muksin Lubis |
| Date Deposited: | 01 Nov 2023 03:13 |
| Last Modified: | 01 Nov 2023 03:13 |
| URI: | http://repository.mercubuana.ac.id/id/eprint/83620 |
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