Rofiq, Muhamad Khoirur and Ramadhan, Monica Fitri (2018) Evaluasi dan Perancangan Integrasi Panas Dengan Pinch Technology Pada Pabrik Pembuatan Bioetanol dari Molasses. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Energi panas merupakan salah satu komponen penting dalam suatu proses produksi di industri kimia. Siklus penggunaan panas yang dihasilkan maupun yang dibutuhkan selalu diperhatikan untuk dijaga sesuai dengan rancangan pada desain. Bagi unit proses yang membutuhkan energi panas, umumnya energi didapat dari supply utilitas pabrik, sementara energi panas yang dihasilkan dari unit operasi tertentu terkadang masih terbuang tanpa dimanfaatkan kembali. Dengan demikian, dapat dirancang integrasi panas antar unit operasi (dalam penelitian ini menggunakan heat exchanger network) yang bertujuan untuk memanfaatkan energi panas yang dihasilkan dari suatu unit operasi untuk unit operasi yang membutuhkan energi panas, sehingga utilitas yang dibutuhkan akan berkurang. Berkurangnya jumlah utilitas pada proses produksi dapat secara langsung mengurangi jumlah utility cost, sehingga total profit pabrik pun akan meningkat. Integrasi panas dapat dilakukan dengan metode pinch, dimana konsep dasar termodinamika digunakan untuk menganalisis jumlah kebutuhan pendingin maupun pemanas, sehingga berikutnya dapat diketahui jumlah aliran yang perlu didinginkan maupun aliran yang perlu dipanaskan. Dari hasil analisis, diketahui bahwa integrasi panas yang dilakukan di industri bioetanol dari molasses tersebut dapat dilakukan pada sebelas aliran (dengan kondisi instalasi perpipaan diasumsikan tidak memiliki pengaruh yang signifikan) hingga menghasilkan penurunan nilai kebutuhan utilitas berupa steam pemanas hingga 327.475.571 rupiah per tahunnya dan penurunan nilai Total Annual Cost hingga sebesar 200.572.386 rupiah per tahunnya.
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Heat energy has been known as one of some important components involved in a chemical industry. The amount of heat produced and required is very crucial and thus, need to be carefully taken care of. Heat energy needed for a process is usually obtained from utility supply, such as steam, and the heat waste is usually disposed of without any further usage or recycle system. Based on that condition, heat integration between operating units, or in this case heat exchanger network, could be designed in such a way so as to reuse the heat energy waste for other processes that require heat. Thus, the utility supply can be reduced to a minimum level. The reduced utility usage from a process is economically beneficial as the utility cost is also reduced, so that the total company profit could be increased. The heat integration can be done by using pinch method, which has thermodynamic as its basic knowledge to analyze the needs of heating or cooling utility. After knowing each utility, the amount of streams that can be integrated is known. From a comprehensive analysis, heat integration could be done in their molasses-based bioethanol production using eleven streams that would decrease the heating utility (steam) up to 327.475.571 rupiahs each year and also decrease the total annual cost value of up to 200.572.386 rupiahs each year.
Keywords : heat integration, heat exchanger network, pinch technology
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSK 662.88 Rof e-1 |
| Uncontrolled Keywords: | integrasi panas, heat exchanger network, pinch technology |
| Subjects: | T Technology > TP Chemical technology > TP339 Ethanol as fuel. Biomass energy. T Technology > TS Manufactures > TS155 Production control. Production planning. Production management |
| Divisions: | Faculty of Industrial Technology > Chemical Engineering > 24201-(S1) Undergraduate Thesis |
| Depositing User: | Monica Fitri Ramadhan |
| Date Deposited: | 17 Jun 2021 05:57 |
| Last Modified: | 17 Jun 2021 05:57 |
| URI: | http://repository.its.ac.id/id/eprint/54208 |
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