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All Journal Alinea: Jurnal Bahasa, Sastra, dan Pengajaran JURNAL VOKASI TEKNIK (JUVOTEK)
Darry Christine Silowaty Purba
Politeknik Teknologi Kimia Industri Medan
Religion Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Education Electrical & Electronics Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mechanical Engineering

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Perhitungan Neraca Massa Pada Unit Screw Press di PT. XYZ Novia Nelza; Darry Christine Silowaty Purba; Agustin Nurya Savitri
JURNAL VOKASI TEKNIK Vol 1 No 01 (2023): JURNAL VOKASI TEKNIK (JUVOTEK)
Publisher : CV MEDAN TEKNO SOLUSI

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Abstract

Screw press berfungsi untuk mengekstraksi atau memisahkan minyak kasar (crude oil) dari daging buah (mesocrap) secara mekanis. Pada proses ekstraksi secara mekanis semua massa yang keluar dari digester akan di ekstraksi pada alat yang bernama screw press dengan kapasitas produksi 12 ton/jam, pada proses ekstraksi ditambahkan air dilusi sebesar 9% dari kapasitas produksi. Penelitian ini bertujuan untuk menghitung laju massa masuk dan keluar pada screw press. Metode yang digunakan adalah perhitungan neraca massa. Neraca massa adalah suatu perhitungan dari semua bahan-bahan yang masuk, yang terakumulasi dan keluar pada suatu sistem dalam waktu tertentu. Dari hasil perhitungan neraca massa diperoleh hasil laju massa yang masuk pada screw press yang terdiri dari cacahan yang keluar dari digester sebesar 8,0604 ton/jam dan Air dilusi sebesar 1,08 ton/jam. Sedangkan laju massa yang keluar pada screw press berupa ampas press sebesar 2,352 ton/jam dan crude palm oil sebesar 6,7884 ton/jam.
An Evaluation of English Language Learning Based on Outcome-Based Education (OBE) in Higher Education Agustin Nurya Savitri; Darry Christine Silowaty Purba
Alinea: Jurnal Bahasa, Sastra dan Pengajaran Vol. 6 No. 2 (2026): Alinea: Jurnal Bahasa, Sastra, dan Pengajaran
Publisher : Bale Literasi: Lembaga Riset, Pelatihan & Edukasi, Sosial, Publikasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58218/alinea.v6i2.3094

Abstract

The implementation of Outcome-Based Education (OBE) in Indonesian higher education has reshaped English language learning, yet systematic evaluation of its effectiveness remains limited. This research addresses the urgent need to evaluate whether OBE-based English instruction achieves intended learning outcomes, given persistent gaps between curriculum design and classroom practice. The objective of this study is to evaluate OBE-based English language learning in higher education, specifically examining outcome achievement, curriculum-practice alignment, implementation challenges, and stakeholder perception consistency. A qualitative evaluative approach was employed, involving semi-structured interviews with six English instructors, focus group discussions with fifteen students across proficiency levels, classroom observations of twenty sessions, and document analysis of course syllabi and OBE policy documents. Thematic analysis revealed four main findings: OBE learning outcomes are partially achieved, with writing outcomes significantly lower than speaking and listening; substantial misalignment exists between OBE curriculum documents and practice, with teacher-centered instruction dominating 70% of observed sessions; multidimensional challenges including resource limitations, pedagogical difficulties, and cultural factors constrain implementation; and instructors systematically overestimate student outcome attainment compared to student self-assessments. The study concludes that OBE-based English learning requires targeted writing interventions, instructor professional development in authentic assessment design, technology infrastructure investment, multi-stakeholder evaluation mechanisms, and cultural adaptation strategies. Further longitudinal and comparative studies across institutions are recommended.
Co-Authors Agustin Nurya Savitri Novia Nelza