24 research outputs found

    Akurasi Estimasi Kadar Sukrosa pada Penentuan Tingkat Kematangan Pepaya Menggunakan Nilai RGB Berbasis Aplikasi Mobile

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    Abstrak Tingkat kematangan pepaya selama ini diidentifikasi secara visual dengan perubahan warna pada kulit buah pepaya. Proses identifikasi ini memiliki beberapa kekurangan di antaranya melelahkan, tidak konsisten, dan memakan waktu. Tujuan penelitian ini adalah membangun sebuah aplikasi pengolahan citra untuk mengidentifikasi tingkat kematangan pada buah pepaya berbasis mobile agar lebih efektif. Metode yang digunakan pada penelitian ini adalah regresi linier berganda. Metode ini digunakan untuk mencari korelasi antara nilai red, green, blue (RGB) dan Brix pada buah pepaya. Pembuatan aplikasi ini menggunakan metode K-Nearest Neighbour (KNN) menggunakan 90 buah papaya dengan tingkat kematangan yang berbeda, yaitu tingkat kematangan mentah, mengkal, dan matang. KNN digunakan sebagai metode untuk kuantifikasi warna sehingga mendekati warna yang sesungguhnya. Hasil pengujian sistem menunjukkan bahwa penerapan aplikasi identifikasi tingkat kematangan buah pepaya memiliki tingkat akurasi sebesar 66,67%. Aplikasi ini butuh untuk dikembangkan lebih lanjut karena masih memiliki tingkat akurasi yang rendah, tetapi aplikasi ini sudah dapat digunakan sebagai alat bantu sortasi pepaya.Kata kunci: pengolahan citra, pepaya, RGB, Brix AbstractThe degree of ripeness of papaya has been evaluated manually based on its skin color parameters. This identification process has several disadvantages, such as exhausting, inconsistent, and taking time. This research is set to build an application of image processing for identifying a papaya maturity level based on the mobile application. The method used in this research is multiple linear regression to find the correlation between red, green, blue (RGB) and Brix values in papaya. The mobile application is developed by using K-Nearest Neighbour (KNN) method for 90 papayas with different levels of maturity; unripe, moderate, and ripe. KNN is used to estimate the color of papaya skin quantitatively. The result showed that the use of the mobile application for determination of the degree of papaya ripeness has an accuracy level of 66.67%. The mobile application can be used as a supporting tool for papaya sorting process, although it should be improved to increase its accuracy.Keywords: image processing, papaya, RGB, Bri

    Between Hibah and Waṣiat Wājibah for Non-Muslims: Expansive Legal Interpretations by Indonesian Religious Judges in Inheritance Cases

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    Apart from gender, differences in religious affiliation have often been perceived as negatively impacting the rights of non-Muslims in the practice of family law within Muslim jurisdictions. This article challenges that assumption by presenting recent evidence from the practice of religious courts in Indonesia, specifically in inheritance cases involving testators without heirs. It aims to analyze the legal arguments employed by religious judges in granting the testator’s estate to non-Muslim cognates through hibah (gift). By examining three court verdicts, from the first instance to the cassation level, the author finds that religious judges utilize both juridical and philosophical reasoning to accommodate the rights of non-Muslims via the institution of hibah wājibah (mandatory gift). While the juridical arguments at the first-instance level align with classical fiqh (Islamic jurisprudence), which prescribes allocating the testator’s estate to the bait al-māl (public treasury), higher-level judges deviate from this approach. They adopt an expansive interpretation of hibah provisions, prioritizing societal justice over rigid adherence to classical fiqh rules. Unlike waṣiat wājibah (mandatory will), hibah wājibah offers greater flexibility, as a maximum limit does not constrain it. The author argues that the state’s efforts to encourage religious judges to shift away from rigid classical fiqh references have been gradually successful. This finding carries significant implications for promoting justice and equality among citizens, regardless of their religious affiliation. [Perbedaan afiliasi agama, selain gender, berdampak negatif pada hak yang diterima oleh non-muslim dalam praktik hukum keluarga di yurisdiksi muslim. Artikel ini membantah asumsi ini dengan menyajikan bukti terbaru melalui praktik peradilan agama Indonesia pada kasus pewaris tidak memiliki ahli waris. Untuk itu, artikel ini bertujuan untuk menganalisis argumentasi hukum yang digunakan oleh para hakim agama dalam menyelesaikan kasus tersebut yang melibatkan kerabat non-muslim. Melalui analisis isi terhadap tiga putusan pengadilan agama dari tingkat pertama sampai kasasi, penulis menemukan bahwa para hakim menggunakan argumentasi yuridis dan filosofis untuk mengakomodasi hak-hak non-muslim melalui institusi hibah wajibah. Meskipun argumentasi yuridis para hakim agama pada tingkat pertama kompatibel dengan ketentuan fikih klasik yang memberikan harta peninggalan tersebut ke bait al-māl, namun argumentasi hukum para hakim pada dua tingkat terakhir cenderung mengabaikannya. Mereka menginterpretasikan secara ekspansif ketentuan tentang hibah dengan mempertimbangkan rasa keadilan yang hidup di masyarakat. Pemenuhan hak-hak non-muslim melalui hibah wajibah ini lebih fleksibel, karena tidak memiliki batas maksimal bagian sebagaimana dalam wasiat wajibah. Penulis berargumentasi bahwa upaya negara menjauhkan para hakim agama dari merujuk pada ketentuan fikih klasik berhasil secara bertahap. Temuan ini berimplikasi terhadap keadilan dan persamaan hak antar warga negara, tanpa memandang afiliasi agama.

    ETIKA BERKOMUNIKASI PERSPEKTIF HADIS (Dalam Kutub at-Tis’ah)

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    Human nature is born in a sacred condition (fitrah), and one of its forms of purity (fitrah) is communication. Good communication is effective and efficient communication so that it can deliver to success also gives problems for everyone. In certain conditions, communication can also have a bad impact if it is not controlled so that it can cause hatred, hostility, fights can even cause death due to communication that is not ethical, excessive and uncontrolled. Therefore, ethics is certainly an important and indispensable part of communication. In this study the author aims to identify the ethics of communication based on the hadith of the Prophet Muhammad. The method in this study uses the library method (Library Research), which is a data collection technique by conducting a study of books, journals, and other literature that have a relationship with related problems.Â

    DELEGATION OF AUTHORITY PERMIT LICENSE FROM REGENT TO HEAD OF TAKISUNG DISTRICT IN TANAH LAUT REGENCY

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    The progress of decentralization from the central government to regional government give every regional government same opportunity to improve. To maximize governance process, government of Tanah Laut regency gives authorities to local government agencies and head of district to assist regional government autonomy which one of it is delegation of authority permit building license. Based on above, the author interested in analyzing and understanding about the delegation of authority permit building license from regent to head of Takisung district in Tanah Laut regency, what factors inhibit it and what efforts to overcome the obstacle of delegation of authority.  In this research author uses Louis Allen theory about delegation of authority which define delegation of authority is task carried out by a delegator in entrusting responsibility and authority to other people and assigning accountability for results. It is hope that this theory can answer the research objectives. The author uses descriptive qualitative research methods with an inductive approach to describe the state of the object based on existing facts. Data collection techniques which author use are interview, observation, and documentation. The result of the research is the delegation of authority has run well enough but should be improved because the head of Takisung district’s right should be fulfilled. Supervision and socialization of noncommercial permit building license must be carried out regularly and reach every level of society.  Key words; Delegation, Authority, Permit Building Licens

    The Meaning of The Hajj Ritual: William R. Roff Thoughts and His Contribution to Islamic Studies in Indonesia

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    This article aims to analyze William R. Roff’s theoretical approach to Hajj and its contribution to Islamic studies in Indonesia. This contribution arose from his concern with the very few historians of religions who made functional, analytical categories for explaining religious phenomena. This paper is a literature study and uses William R. Roff’s writing, Theoretical Approaches to the Hajj, as the primary source and analyzes it using qualitative data analysis. The author found that William R. Roff explained the implementation of the pilgrimage and its meaning by elaborating on Arnold van Gennep’s theory and Victor Turner’s thesis. The pre-implementation stage of the pilgrimage means the separation contained in the ramalan ritual (extra-Islamic) to determine the best time for the pilgrims’ departure, apologies and prayers, preparation of supplies, repayment of debts, and their obligations before the pilgrimage. The stage of the hajj implementation means the transition that is contained in the peak performance of the hajj ritual. The post-implementation phase of the Hajj means togetherness in the change in attributes, understanding of the pilgrims, and their implementation in the community life where they live. William R. Roff’s theoretical contribution to the pilgrimage, the outcome of which was satisfactory to both parties, has been used as a model by scholars and researchers for studying other religious rituals in Islam. His interpretation of the hajj ritual falls into the third phase called new Islamic studies to approach

    PERSEPSI MASYARAKAT TERHADAP DAKWAH SALAFI DI DESA JATIMULYO KECAMATAN JATI AGUNG KABUPATEN LAMPUNG SELATAN

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    ABSTRAK Penelitian ini yang berjudul “Persepsi Masyarakat Terhadap Dakwah Salafi di Desa Jatimulyo Kecamatan Jati Agung Kabupaten Lampung Selatan”. Skripsi ini membahas dakwah salafi yaitu merupakan sebuah paham atau aliran agama Islam yang pengamalan agamanya harus berlandaskan dengan ajaran Nabi terdahulu sesuai dengan ketentuan dalil di dalam Al-Quran dan as-Sunnah. Hal tersebut memunculkan sebuah permasalahan di masayarakat dan menimbulkan sebuah persepsi atau pandangan, sehingga tujuan dari penelitian ini yaitu untuk memahami dan mengetahui persepsi masyarakat terhadap dakwah salafi di Desa Jatimulyo Kecamatan Jati Agung Kabupaten Lampung Selatan. Metode Penelitian ini adalah penelitian lapangan (field research) yang bersifat deskriptif kualitatif. Sumber data penelitian ini berupa data lapangan maupun data pustaka. Data yang dibutuhkan dalam penelitian ini berasal dari dua sumber. Pertama, Data primer yaitu data utama dalam suatu penelitian yang berisi hasil dari pengamatan observasi, wawancara, dan dokumentasi. Kedua, Data sekunder yaitu data yang peneliti peroleh dari karya-karya jurnal, buku, dan literature bacaan yang relevansinya bekaitan dengan apa yang diteliti. Adapun Teknik pengumpulan data dilakukan dengan wawancara, observasi dan dokumentasi dengan pendekatan sosiologi, fenomenologi dan psikologi dengan tujuan untuk mendeskripsikan secara rinci terkait pokok-pokok masalah yang terdapat dalam judul penelitian, kemudian membuat kesimpulan berdasarkan data dan fakta yang telah dianalisis sebagai hasil penelitian. Dalam mengambil data, Penulis menjadi partisipan observasi dengan begitu Penulis mudah mengambil data. Kemudian Penulis mengutip apa yang disampaikan oleh informan dengan menarik kesimpulan dari setiap informasi yang disampaikan oleh narasumber. Berdasarkan hasil penelitian persepsi masyarakat terhadap dakwah salafi secara umum terbagi menjadi dua yaitu persepsi masyarakat terhadap pelaksanaan dakwah salafi, masyarakat setempat menerima dan menghormati atas kegiatan dakwah tersebut, namun di sisi lain masyarakat tidak setuju dan menolak atas ajaran salafi yang membida‟ah kan kegiatan Islam adat istiadat yang sudah turun�temurun, hal ini karena tidak sesuai dengan apa yang masyarakat pahami sesuai kebiasaan masyarakat setempat Kata Kunci: Persepsi Masyarakat, Dakwah, Salafi. ABSTRACT This research is entitled "Community Perceptions of Salafi Da'wah in Jatimulyo Village, Jati Agung District, South Lampung Regency". This thesis discusses Salafi da'wah, which is an understanding or sect of the Islamic religion whose religious practice must be based on the teachings of the previous Prophet in accordance with the provisions of the propositions in the Al-Quran and as�Sunnah. This gives rise to a problem in society and gives rise to a perception or view, so the aim of this research is to understand and determine the public's perception of Salafi preaching in Jatimulyo Village, Jati Agung District, South Lampung Regency. This research method is field research which is descriptive qualitative in nature. The data sources for this research are field data and library data. The data needed in this research comes from two sources. First, primary data is the main data in a study which contains the results of observations, interviews and documentation. Second, secondary data is data that researchers obtain from journals, books and reading literature whose relevance is related to what is being researched. The data collection technique is carried out using interviews, observation and documentation using sociological, phenomenological and psychological approaches with the aim of describing in detail the main problems contained in the research title, then making conclusions based on the data and facts that have been analyzed as a result of the research. In collecting data, the author becomes an observation participant, so it is easy for the author to collect data. Then the author quotes what was conveyed by the informant by drawing conclusions from each information conveyed by the informant. Based on the results of research, the public's perception of Salafi da'wah is generally divided into two, namely the public's perception of the implementation of Salafi da'wah, the local community accepts and respects the da'wah activities, but on the other hand the community does not agree and rejects Salafi teachings which are innovations in Islamic activities. customs that have been passed down from generation to generation, this is because they are not in accordance with what the community understands according to the habits of the local community Keywords: Community Perception, Da'wah, Salafi

    Ismail Mundu on Islamic Law of Inheritance: A Content Analysis of Majmū‘ al-Mīrāth fī Ḥukm al-Farā’iḍ

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    This article analyses a manuscript on the Islamic law of inheritance, entitled Majmū‘ al-Mīrāth fī Ḥukm al-Farā’iḍ, written by Ismail Mundu. The manuscript resulted from Mundu’s anxiety about the difficulties encountered by his students in understanding the Islamic inheritance-sharing mechanism and the predicted extinction of the Islamic law of inheritance. Through content analysis and historical approaches, the author found that the inclination of thought in Mundu’s Islamic law of inheritance was based on the Shāfi‘ī school with a clearly different point that constitutes its specific and evident contribution. The manuscript included charts containing concise formulas that were not in any other works of Shāfi‘ī school and that could be used as a practical guide to facilitate beginners in learning the Islamic law of inheritance. This article, therefore, contributes to the study of the history of Islamic law by providing evidence of the establishment of local ideas and thought on the Islamic law of inheritance applied by Mundu when he served as Mufti of the Kubu Kingdom and Judge of the Kubu Court from 1907 to 1957.[Artikel ini menganalisis sebuah manuskrip tentang hukum waris Islam, berjudul Majmū‘ al-Mīrāth fī Ḥukm al-Farā’iḍ, karya Ismail Mundu. Manuskrip ini disusun atas keprihatinan terhadap kesulitan-kesulitan yang dialami murid-murid Mundu dalam memahami mekanisme pembagian waris Islam dan ramalan kepunahan ilmu waris karena masyarakat Muslim lebih mengutamakan hukum adat. Melalui studi analisis isi dan pendekatan sejarah, penulis menemukan bahwa kecenderungan pemikiran hukum waris Islam Mundu berdasarkan pada mazhab Shāfi‘ī dengan perbedaan jelas yang merupakan kontribusinya yang spesifik dan nyata. Karya tersebut menyediakan jadwal (tabel) yang berisi rumus-rumus ringkas yang tidak terdapat dalam karya-karya mazhab Shāfi‘ī lainnya dan dapat digunakan sebagai pedoman untuk memudahkan para pemula dalam mempelajari hukum waris Islam. Oleh karena itu, artikel ini berkontribusi bagi kajian sejarah hukum Islam dengan memberikan bukti adanya gagasan dan pemikiran local tentang hukum waris Islam yang diterapkan oleh Mundu ketika menjabat sebagai Mufti Kerajaan Kubu dan Hakim Pengadilan Kubu (1907-1957).

    وقائع معاملة الرجال والنساء في الحياة الاجتماعية لمجتمع مصرفي الرواية "في وادي الهموم" لمحمد لطفي جمعة عند نظرية بنيوية جنيتيكية للوسيان غولدمان

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    مستخلص البحث أهداف هذا البحث هي: (1 لمعرفة أشكال وقعائع معاملة الرجال والنساء في الحياة الاجتماعية لمجتمع مصر في الرواية "في وادي الهموم" لمحمد لطفي جمعة عند نظرية بنيوية جنيتيكية للوسيان غولدمان (2) لمعرفة أسباب وقعائع معاملة الرجال والنساء في الحياة الاجتماعية لمجتمع مصر في الرواية "في وادي الهموم" لمحمد لطفي جمعة عند نظرية بنيوية جنيتيكية للوسيان غولدمان. نوع هذا البحث العلمي هو النوع البحث الكيفي. مصادر البيانات الأساسية لهذه الدراسة هي نص الرواية "في وادي الهموم" تأليف محمد لطفي جمعة، ومصادر البيانات الثانوية هي المجلات والكتب المتعلقة ببنيوية جنيتيكية لوسيان غولدمان. وطريقة جمع البيانات هي بالقراءة والترجمة والكتابة. وطريقة تحليل البيانات بطريقة تحليل البيانات عند ميلز وهوبرمان. لهذا البحث نتيجتان هما (1) يبدوا أشكال وقائع معاملة الرجال والنساء في الحياة الاجتماعية لمجتمع مصر في رواية في وادي الهموم في 6 مجالات وهي: 1) الثقافية ولها أربعة الوقائع: شرب الخمر، المقامرة، النساء المادية، والرجال المادي؛ 2) الرومانسية ولها ثلاثة الوقائع: الحب الأعمى؛ الزواج القسري؛ وخيانة الزوجية؛ 3) الاقتصادية ولها الواقعيتان: الخادمات والراقصات؛ 4) التعليمية ولها الواقعة الواحدة: تعليمية البرجوازية مصر ؛ 5) الاجرامية ولها الواقعيتان: اللا مبالاة للمجتمع على ضحايا؛ والقتلة من قبل عائلة؛ و 6) الدينية ولها الواقعة الواحدة : فشل التربية الدينية البرجوازية؛ (2) سبب وقائع الرجل والنساء في الحياة الاجتماعية للمجتمع المصري في رواية في وادي الهموم بقلم محمد لطفي جمعة هو الحب بأن الحب أصل وسبب كل واقعة الرجال والنساء في الحياة الاجتماعية لمجتمع مصر في رواية في وادي الهموم تبني بنيانا على موضوع الجماعي ونظرة العالمية للمؤلف. ABSTRACT The aim of this research is: (1) To find out the realities form of men and women’s interaction in the social life of the egyptian society in Fii Wadil Hamum a Novel by Muhammad Lutfi Jum'ah Based on Lucien Goldmann's Genetic Structuralism ; (2) To find out the cause of realities of men and women’s interaction in the social life of the Egyptian society in Fii Wadil Hamum a Novel by Muhammad Lutfi Jum'ah Based on Lucien Goldmann's Genetic Structuralism. The research used qualitative research by taking two kinds of data sources, including the primary data source in the form of text in novel entitled "في وادي الهموم" by Muhammad Luthfi Jum’ah and secondary data sources in the form of books, journals which discuss about genetic structuralism. The researcher used data collection technique by 3 steps are: 1) reading; 2) translating; and 3) writing. Data is analyzed by Miles and Huberman’s analysis model which is through 4 steps are: 1) data data collection; 2) data reduction; 3) data display; and 4) conclusion / drawing. The results of this present study showed that (1) the form of reality of men and women’s interaction in the social life of Egyptian society in the novel Fii Wadil Hamum by Muhammad Lutfi Jum'ah showed in 6 fields are: a) culture which has three realities:1) gambling culture, 2) drunken culture and 3) materialist culture; b) romance which has three realities: 1) blind love; 2) forced marriage; and 3) infidelity; c) economy with two realities: 1) female housemaids; and 2) female club dancers; d) education with one reality: the education of the Bourgeois; e) crime with two realities: 1) public ignorance of victims; and 2) killings by their own family members; and f) religion with one reality: failure of Egyptian Muslim Bourgeois religious education; (2) the cause of reality of men and women’s interaction in the social life of Egyptian society in Fii Wadil Hamum’s novel by Muhammad Lutfi Jum'ah work based on perspective genetic structuralism Lucien Goldmann is the love which love is the origin and cause of all forms of realities of men and women’s interaction in Egyptian social life structured through the collective subject and the worldview of the author. ABSTRAK Tujuan penelitian ini adalah: (1) Untuk mengetahui bentuk realitas interaksi lelaki dan perempuan dalam kehidupan sosial masyarakat mesir dalam novel Fii Wadil Hamum karya Muhammad Luthfi Jum’ah berdasarkan prespektif strukturalisme genetik Lucien Goldmann (2) Untuk mengetahui sebab realitas interaksi lelaki dan perempuan dalam kehidupan sosial masyarakat mesir dalam novel Fii Wadil Hamum Karya Muhammad Luthfi Jum’ah berdasarkan prespektif Strukturalisme genetik Lucien Goldmann. Jenis penelitian ini adalah kualitatif. Sumber data primer yang digunakan pada penelitian ini adalah teks novel berjudul: "في وادي الهموم" karya Muhammad Luthfi Jum’ah terbitan Muassasah Hindawi Litta’lim watsaqofah berjumlah 91 halaman. dan sumber data sekunder berupa buku, jurnal yang sesuai dengan kajian strukturalisme genetik. Teknik pengumpulan data yang digunakan oleh peneliti adalah teknik baca, teknik terjemah, dan teknik catat. Teknik analis data yang digunakan adalah model analisis data model Miles Huberman yakni melalui 4 tahapan analisis: 1) pengumpulan data; 2) reduksi data; 3) penyajian data; dan 4) penarikan kesimpulan. Hasil penelitian ini menunjukan (1) bentuk realitas interaksi lelaki dan perempuan dalam kehidupan sosial masyarakat mesir dalam novel Fii Wadil Hamum Karya Muhammad Luthfi Jum’ah terdapat dalam 6 bidang, yakni: a) kebudayaan berupa empat realitas: budaya perjudian, budaya mabuk-mabukan, perempuan materialistis dan lelaki materialistis; b) percintaan berupa tiga realitas: cinta buta, pernikahan paksa, dan perselingkuhan; c) ekonomi dengan dua realitas: perempuan pembantu rumah tangga dan perempuan penari klub; d) pendidikan dengan satu realitas: pendidikan kaum Borjuis; e) kriminalitas dengan dua realitas: keacuhan masyarakat terhadap korban dan pembunuhan oleh anggota keluarga sendiri ; f) agama dengan satu realitas: kegagalan pendidikan agama Borjuis Muslim Mesir; (2) sebab realitas interaksi lelaki dan perempuan dalam kehidupan sosial masyarakat mesir dalam novel Fii Wadil Hamum Karya Muhammad Luthfi Jum’ah Berdasarkan prespektif Strukturalisme genetik Lucien Goldmann adalah cinta dimana cinta adalah asal dan sebab segala bentuk realitas interaksi lelaki dan perempuan dalam kehidupan sosial masyarakat Mesir yang distrukturasi melalui subjek kolektif dan pandangan dunia pengarang

    POLIGAMI DENGAN ALASAN MENJALANKAN SUNAH RASULULLAH (STUDI PUTUSAN DI PENGADILAN AGAMA YOGYAKARTA NOMOR 684/PDT.G/2018/PA.YK)

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    The application for polygamy permission in Decision Number 684/PDT.G/2018/PA.YK at the Religious Court of Yogyakarta was submitted by the petitioner based on the reason of carrying out the sunnah of the Prophet Muhammad. Therefore, the petitioner was very concerned about committing acts prohibited by religious norms and laws and regulations. This reason became the basis for the author to further investigate the considerations of the Judge of the Religious Court of Yogyakarta regarding the granting of the polygamy permission, and whether the decision provides benefits or harms. The type of research used by the researcher in preparing this thesis is qualitative research method with a library research approach. The approach used is a normative juridical approach. This research is descriptive-analytical in nature, producing descriptive data in written or oral form from the observed object. Primary data sources in this research were obtained directly through data collection, while secondary data sources were obtained from other sources such as studies of books, scientific works, and legislation. The data collection technique used in this research is documentation. The author uses descriptive analysis, which reveals laws and regulations related to legal theories. Although the petitioner’s reason for the application is solely for worship and following the sunnah of the Prophet without reasons as regulated in the Articles of the Law and the Compilation of Islamic Law, the panel of judges considers that this is still in accordance with legal principles and values of justice as regulated in Article 229 of the Compilation of Islamic Law, which obligates judges to consider the living legal values of society. It is important for judges to apply the conditions of polygamy strictly to maintain legal integrity and justice within the family institution. Meanwhile, from the perspective of Maqashid Shariah, the judge’s legal considerations include: regulating lawful relationships and maintaining the dignity of all parties, protecting the clarity of lineage for children from lawful marriages, and ensuring economic stability

    Tinjauan Teknis Dan Ekonomis Pemasangan Homogenizer Pada Sistem Bahan Bakar Kapal Tanker PT. PERTAMINA

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    HFO menjadi salah satu pilihan bahan bakar untuk mesin kapal karena harganya yang relatif lebih murah dibandingkan dengan HSD dan MDO. Namun demikian, tidak seperti HSD yang dapat digunakan secara langsung, HFO harus harus menjalani perlakuan pada sistem bahan bakar sebelum memasuki mesin. Sistem perlakuan HFO diantaranya meliputi storage tanks, transfer pumps, settling tanks, separators, service tank, dan booster pump. Dikarenakan semakin berkembangnya proses penyulingan minyak, HFO telah berubah baik secara kualitas maupun kuantitas. HFO saat ini selain memiliki kosentrasi aspal yang lebih tinggi, juga telah mengalami perubahan properties, seperti viskositas dan densitas. Penurunan kualitas bahan bakar ini dapat menyebabkan timbulnya komplikasi masalah baik pada mesin induk maupun pada komponenkomponen sistem pengolahan bahan bakar. Untuk mengurangi efek tersebut, bahan bakar dapat dihomogenkan melalui proses yang dinamakan homogenisasi. Proses homogenisasi menjadi hal yang krusial khususnya untuk bahan bakar HFO. Melalui proses homogenisasi, sludge bahan bakar dapat berkurang, kualitas pembakaran menjadi lebih baik, dan berpengaruh positif terhadap berkurangnya emisi gas buang dan berkurangnyaviii NOx. Proses homogenisasi dilakukan oleh alat yang dinamakan homogenizer. Pada tugas akhir ini, penulis akan meneliti pengaruh pemasangan homogenizer pada sistem bahan bakar kapal tanker PT. Pertamina. Penelitian dilakukan dengan membandingkan perbedaan biaya konsumsi bahan bakar antara kapal tanker milik PT. Pertamina yang telah dilengkapi dengan homogenizer, MT. Pangkalan Brandan, dengan tanker PT. Pertamina yang belum terpasang homogenizer. Penelitian dilakukan dengan membandingkan FOC dua kapal dengan dimensi yang hampir sama dan menghitung keuntungan dari penurunan biaya bahan bakar. Dikarenakan fluktuasi harga bahan bakar, maka harga bahan bakar akan disimulasikan memalui lima skenario harga yang berbeda yaitu, menurun 2,93% pertahun, menurun 1,47% pertahun, harga konstan, meningkat 6,7% pertahun, dan meningkat 13,41% pertahun. Melalui kalkulasi ekonomis, hasil dari pemasangan homogenizer selama sepuluh tahun memberikan efek pada pengurangan biaya konsumsi bahan bakar sebesar ; 47.462,1denganskenariohargabahanbakarmenurun2,9347.462,1 dengan skenario harga bahan bakar menurun 2,93% pertahun, 52.615,9 dengan skenario harga bahan bakar menurun 1,47% pertahun, 58.185,0denganskenariohargabahanbakarkonstan,58.185,0 dengan skenario harga bahan bakar konstan, 89.928,0 dengan skenario harga bahan bakar meningkat 6,7% pertahun, dan 134.975,1denganskenariohargabahanbakarmeningkat13,41pertahun.Paybackperiodsecarakeseluruhanpadakelimaskenariohargaakantercapaipadaperiodeempattahunsetelahmasaoperasional=========================================================================================================HFOhasbecomeoneoffuelchoiceforengineonboardbecauseithasarelativelycheaperpricecomparedtoHSDandMDO.However,unlikeHSDwhichiscanbeuseddirectly,HFOmusthavesystemofpreparationbeforeitflowedintoshipsengine.HFOsystemgenerallyincludesstoragetanks,transferpumps,settlingtanks,separators,servicetank,boosterpump.Becauseofmoreadvancedrefiningprocess,HFOhaschangesintermsofqualityandquantity.HFOcurrentlyhasahigherconcentrationofasphaltcontentandalsoexperiencingachangeinfuelproperties,suchasviscosityanddensity.Thislowqualityfuelmayleadtoseveralcomplicationonmainengineandfueltreatmentsystemcomponents.Toreducetheimpact,fuelcanbehomogenizedbyprocesscalledHomogenizationprocess.HomogenizationprocessbecomesimportantforfuelespeciallyHFO.Byperforminghomogenizationoffuel,fuelwastecanbereduced,qualityofcombustioncanbebetter,andalsoabletoprovideapositiveinfluenceforthereductionofemissionsandareductioninNOxlevels.Homogenizationprocessisdonewithatoolcalledahomogenizer.viiiInthisbachelorthesis,authorintendstostudytheeffectofhomogenizerinstalationonPT.Pertaminatankersfuelsystem.ResearchwillstudyfueloilcostdifferencebetweenPT.PertaminatankersMT.PangkalanBrandanwhichequippedwithhomogenizerandMT.Palusipatwhicharenotequippedwithhomogenizer.ResearchisbedonebycomparingFOCtwosimiliarshipsandcalculateitsfuelbenefitreductioncost.Duetofueloilpricefluctuation,fueloilpricewillbesimulatedwithfivedifferentscenariowhicharedecrease2,93price,increase6,7annually.Throughecomoniccalculation,theresultforhomogenizerinstalationareeffectonreducingfueloilconsumptioncostwhithin10years.Fueloilconsumptioncostreductionare;134.975,1 dengan skenario harga bahan bakar meningkat 13,41% pertahun. Payback period secara keseluruhan pada kelima skenario harga akan tercapai pada periode empat tahun setelah masa operasional ========================================================================================================= HFO has become one of fuel choice for engine on board because it has a relatively cheaper price compared to HSD and MDO. However, unlike HSD which is can be used directly, HFO must have system of preparation before it flowed into ship's engine. HFO system generally includes storage tanks, transfer pumps, settling tanks, separators, service tank, booster pump. Because of more advanced refining process, HFO has changes in terms of quality and quantity. HFO currently has a higher concentration of asphalt content and also experiencing a change in fuel properties, such as viscosity and density. This low quality fuel may lead to several complication on main engine and fuel treatment system components. To reduce the impact, fuel can be homogenized by process called Homogenization process. Homogenization process becomes important for fuel especially HFO. By performing homogenization of fuel, fuel waste can be reduced, quality of combustion can be better, and also able to provide a positive influence for the reduction of emissions and a reduction in NOx levels. Homogenization process is done with a tool called a homogenizer.viii In this bachelor thesis, author intends to study the effect of homogenizer instalation on PT. Pertamina tanker’s fuel system. Research will study fuel oil cost difference between PT. Pertamina tankers MT. Pangkalan Brandan which equipped with homogenizer and MT. Palusipat which are not equipped with homogenizer. Research is be done by comparing FOC two similiar ships and calculate it’s fuel benefit reduction cost. Due to fuel oil price fluctuation, fuel oil price will be simulated with five different scenario which are decrease 2,93% annually, decrease 1,47% annually, constant price, increase 6,7% annually, and increase 13,41% annually. Through ecomonic calculation, the result for homogenizer instalation are effect on reducing fuel oil consumption cost whithin 10 years. Fuel oil consumption cost reduction are ; 47.462,1 with fuel oil price decrease 2,93% annually, 52.615,9withfueloilpricedecrease1,47annually,52.615,9 with fuel oil price decrease 1,47% annually, 58.185,0 with constant fuel oil price, 89.928,0withfueloilpriceincrease6,789.928,0 with fuel oil price increase 6,7% annually, and 134.975,1 with fuel oil price increase 13,41% annually. Payback period will be obtained within 4 years after operatio
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