Vokasi: Jurnal Publikasi Ilmiah https://ejurnal.polnep.ac.id/index.php/vokasi <p style="text-align: justify;">Vokasi: Jurnal Publikasi Ilmiah disingkat JV diterbitkan oleh Unit Penelitian dan Pengabdian pada Masyarakat Politeknik Negeri Pontianak (UPPM Polnep). Terbit sejak tahun 2004 dengan p-ISSN 1693-9085 dan sejak tahun 2018 ditambah dengan e-ISSN 2621-007X, terbit dua kali dalam setahun, Juni dan Desember. Jurnal menerbitkan tulisan tentang hasil penelitian, gagasan konseptual, kajian dan aplikasi teori, tinjauan kepustakaan, dan tulisan praktis dalam bidang ilmu pengetahuan, rekayasa dan pendidikannya.</p> en-US ichanida@yahoo.com (Ichsan) jurnal@polnep.ac.id (Sekretariat Jurnal) Sun, 30 Jun 2024 00:00:00 +0700 OJS 3.1.0.1 http://blogs.law.harvard.edu/tech/rss 60 Pengaruh Penambahan Serat Asbes Terhadap Sifat Refractory Brick Berbahan Kaolin dan Fly Ash https://ejurnal.polnep.ac.id/index.php/vokasi/article/view/780 <p><strong><em>Abstract:</em></strong><em> This study aims to determine the effect of adding asbestos to the production of refractory bricks with different material compositions, namely kaolin, fly ash, asbestos and standard water. The composition of kaolin and fly ash is given in equal percentages, varying according to the mass of asbestos, 0 (%), 10 (%), 15 (%), 20 (%), 30 (%). The tests carried out are thermal conductivity and mechanical properties, where these results become parameters for determining the best composition. The results of testing the compressive strength of refractory bricks showed that 0 (%) quartz sand composition had the largest compressive strength, namely 14.40 (Mpa), the impact test results for 0 (%) asbestos fiber composition had the largest value, namely 0.084 (Joule/mm<sup>2</sup>), while the results Heat conductivity testing showed that quartz composition 30 (%) had the lowest value, namely 0.373 K(W/mC), thus the addition of asbestos fiber can reduce heat conductivity but cause a decrease in the compressive and impact mechanical properties of refractory bricks.</em></p> <p><strong><em>Keywords</em></strong><em>: Refractory bricks, refractories, kaolin, fly ash, asbestos</em></p> Dwi Handoko, Azmal Azmal, Iyus Iyus ##submission.copyrightStatement## https://ejurnal.polnep.ac.id/index.php/vokasi/article/view/780 Thu, 04 Jul 2024 00:00:00 +0700 Design Models of Equipment Vapor Compression Refrigeration Cycle To Support Practicum Heat Engine And Fluid Engineering https://ejurnal.polnep.ac.id/index.php/vokasi/article/view/781 <p>The learning method acts as an educational facility that functions to convey <em>learning</em> material to achieve learning goals. It takes creativity from lecturers and those responsible for the teaching and learning process, especially practicum.</p> <p>The <em>results</em> of the study entitled Design Models of Equipment Vapor Compression Refrigeration Cycle To Support Practicum Heat Engine And Fluid Engineering Subject produce a model of a practicum tool that can be used to carry out some practicum contents for refrigeration engines. This model of Vapor Compression Refrigeration Cycle can do several practicums in a refrigeration machine, namely looking for COP from a refrigeration machine, installing a refrigeration machine, incubating a refrigeration machine, pumping down a refrigeration machine and filling in a refrigerating machine.</p> <p><strong><em>Keyword</em></strong><strong><em>s</em></strong><strong>: Model tools, Vapor Compression, Practicum</strong></p> Hadimi Mikraj, Joni Rahmadi, Dina Marlina, Rusadi Rusadi, Edi Karyadi ##submission.copyrightStatement## https://ejurnal.polnep.ac.id/index.php/vokasi/article/view/781 Thu, 04 Jul 2024 11:31:38 +0700 Pedestrian Catchment Area Pada Lingkungan Kampus Politeknik Negeri Pontianak https://ejurnal.polnep.ac.id/index.php/vokasi/article/view/782 <p><strong><em>Abstract</em></strong><em>: </em>Pedestrian paths in Pontianak City are increasingly showing improvement, especially in the city center area where human movement is increasingly busy with various kinds of activities taking place there. Roads as the basic element that forms an area are one of the easiest urban public spaces to observe to understand the characteristics of an area. Actors who travel on the sidewalk face various obstacles and goals they want to achieve during their journey. Walking here is a means to fulfill the need for face-to-face interaction that exists in urban activities. With the uncontrolled growth of urban areas, the development of public spaces for pedestrians is somewhat burdened. Most cities allow citizens to access basic services and needs in walkable areas. Pontianak itself is still dominated by a high number of vehicle users and this is not accompanied by efforts to increase pedestrian comfort. This research aims to determine the obstacles faced by pedestrians, especially in the Pontianak State Polytechnic (Polnep) campus area by measuring the total area that can be passed by pedestrians and assessing pedestrian paths by assessing roads and highways in pedestrian catchment areas. feet at every intersection. . The research method used is a non-probability sampling method, namely an accidental sampling technique to calculate the pedestrian catchment area on the Polnep campus to determine the total pedestrian catchment area that is still comfortable to walk through. By measuring the distance between two nodes by navigating the street layout, urban morphology can impact the measurement of the ratio of route distance to urban distance. The analytical method used in this research is qualitative and quantitative descriptive analysis. Qualitative descriptive analysis is used to describe the results of observations and interpretation of quantitative data presented in tabular form. Meanwhile, the quantitative descriptive analysis method is used to measure or assess user perceptions of walkability quality based on the walkability aspects studied, namely accessibility, comfort, safety and aesthetics. The results and findings of the analysis at the Pontianak State Polytechnic Campus show that Accessibility (A), Security (SAF), Comfort (COM), and Aesthetics or Beauty (AES) have a partial and significant effect on Walkability. The conclusion can be proven through the results of the T test (partial) where the calculated T value for each variable is greater than the T table and the significance value for each variable is &lt;0.05.</p> Palupi Ikayanti, Andi Z Zulestari, Nunik Hasriyanti ##submission.copyrightStatement## https://ejurnal.polnep.ac.id/index.php/vokasi/article/view/782 Thu, 04 Jul 2024 11:32:33 +0700 Analisis Produktivitas Produksi Tempe menggunakan Metode Objective Matrix (Omax) dan Traffic Light System (TLS) https://ejurnal.polnep.ac.id/index.php/vokasi/article/view/667 <p>Pengukuran&nbsp;produktivitas&nbsp;penting&nbsp;dilakukan&nbsp;untuk&nbsp;mengetahui&nbsp;sejauh&nbsp;mana&nbsp;tingkat&nbsp;produktivitas dari proses bisnis yang telah dijalankan oleh perusahaan, apakah terjadi peningkatan&nbsp;atau&nbsp;penurunan.&nbsp;Untuk&nbsp;pengukuran&nbsp;produktivitas&nbsp;parsial&nbsp;metode&nbsp;yang&nbsp;dapat&nbsp;digunakan&nbsp;adalah&nbsp;metode&nbsp;<em>Objective</em><em>&nbsp;</em><em>Matrix</em><em>&nbsp;</em>(Omax)&nbsp;sedangkan&nbsp;untuk&nbsp;mengetahui&nbsp;faktor-faktor&nbsp;yang&nbsp;mempengaruhi&nbsp;produktivitas produksi dapat mengunakan metode <em>Traffic Light System </em>(TLS). Oleh karena itu&nbsp;peneliti menggunakan Metode Objective Matrix dan Traffic Light System (TLS)&nbsp;supaya dapat&nbsp;mengukur produktivitas dengan menilai hasil akhir pada setiap bagian perusahaan secara objektif.&nbsp;Tujuan&nbsp;dalam&nbsp;penelitian&nbsp;ini&nbsp;untuk&nbsp;mengetahui&nbsp;nilai&nbsp;indeks&nbsp;produktivitas&nbsp;terhadap&nbsp;performasi&nbsp;sebelumnya pada bulan Januari – Juni 2023 Tempe Asli Hidup Bahagia Pontianak dan Mengetahui&nbsp;faktor-faktor&nbsp;apasaja&nbsp;yang&nbsp;mempengaruhi&nbsp;produktivitas&nbsp;produksi&nbsp;Tempe&nbsp;Asli&nbsp;Hidup&nbsp;Bahagia&nbsp;Pontianak pada bulan Januari – Juni 2023. Hasil dari penelitian ini adalah nilai indeks produktivitas&nbsp;terhadap performasi sebelumnya kenaikan paling tinggi terjadi pada bulan April dengan nilai 31%&nbsp;dan&nbsp;penurunan&nbsp;paling&nbsp;rendah&nbsp;terjadi&nbsp;pada&nbsp;bulan&nbsp;Febuari&nbsp;dengan&nbsp;nilai&nbsp;-9%.&nbsp;Faktor&nbsp;paling&nbsp;berpengaruh&nbsp;terhadap penurunan produktivitas pada pada UMKM Tempe Asli Hidup Bahagia Pontianak adalah&nbsp;kriteria&nbsp;hari kerja&nbsp;karyawan,&nbsp;kriteria jam operasional&nbsp;mesin, kriteria&nbsp;bahan bakar&nbsp;kayu.</p> Cici Cici, Th. Candra Wasis Agung Sutignya, Revi Sesario ##submission.copyrightStatement## https://ejurnal.polnep.ac.id/index.php/vokasi/article/view/667 Thu, 04 Jul 2024 11:33:40 +0700 Analisis Nilai Termal Selubung Bangunan (OTTV) Pada Bangunan Gedung Direktorat Politeknik Negeri Pontianak sebagai Indikator Penilaian Kinerja Bangunan Gedung Hijau menggunakan Building Compliance Form V3.0 https://ejurnal.polnep.ac.id/index.php/vokasi/article/view/783 <p>Kebijakan&nbsp;pemerintah&nbsp;dalam&nbsp;mengurangi&nbsp;emisi&nbsp;karbon&nbsp;diantaranya&nbsp;adalah&nbsp;dengan&nbsp;mengeluarkan Peraturan Menteri PUPR Nomor 21 tahun 2021 tentang Penilaian Kinerja&nbsp;Bangunan&nbsp;Gedung&nbsp;Hijau.&nbsp;Salah&nbsp;satu&nbsp;kriteria&nbsp;penilaian&nbsp;dalam&nbsp;Bangunan&nbsp;Gedung&nbsp;Hijau&nbsp;berdasarkan Petunjuk Teknis Penilaian Bangunan Gedung Hijau adalah OTTV dan WWR.&nbsp;Kedua kriteria ini menjadi poin yang penting dalam kategori penilaian Efisiensi Penggunaan&nbsp;Energi pada bagian Selubung Bangunan. OTTV yang disyaratkan pada Bangunan Gedung&nbsp;Hijau&nbsp;tidak&nbsp;boleh&nbsp;lebih&nbsp;dari&nbsp;35&nbsp;Watt/m2.&nbsp;Sedangkan&nbsp;untuk&nbsp;WWR&nbsp;kurang&nbsp;dari&nbsp;30%.&nbsp;Politeknik&nbsp;Negeri Pontianak sebagai institusi Pendidikan milik pemerintah juga&nbsp;memiliki&nbsp;bangunan&nbsp;gedung yang diharapkan dapat memenuhi standar Bangunan Gedung Hijau. Oleh karena itu&nbsp;perlu&nbsp;dilakukan&nbsp;penyelidikan&nbsp;awal&nbsp;dalam&nbsp;bentuk&nbsp;penelitian&nbsp;terhadap&nbsp;kriteria&nbsp;OTTV&nbsp;dan&nbsp;WWR&nbsp;pada bangunan-bangunan gedung utama&nbsp;di kampus Politeknik Negeri Pontianak.&nbsp;Sebagai&nbsp;obyek penelitian dipilih bangunan Gedung Direktorat Politeknik Negeri Pontianak. Tahapan&nbsp;dan metode penelitian dilakukan yaitu dengan mengumpulkan data berupa gambar bangunan&nbsp;dan kondisi termal ruangan. Dilanjutkan dengan proses analisis dengan spreadsheet Building&nbsp;Compliance&nbsp;Form&nbsp;v3.0&nbsp;dan&nbsp;hasilnya&nbsp;akan&nbsp;dilakukan&nbsp;pembahasan.&nbsp;Dari&nbsp;penelitian&nbsp;ini&nbsp;diperoleh&nbsp;hasil&nbsp;kondisi&nbsp;existing&nbsp;Gedung&nbsp;Direktorat&nbsp;Politeknik&nbsp;Negeri&nbsp;Pontianak&nbsp;mempunyai&nbsp;nilai&nbsp;OTTV&nbsp;sebesar 37,65 Watt/m2 dan WWR sebesar 34,28%, dimana keduanya masih belum memenuhi&nbsp;standar&nbsp;35&nbsp;Watt/m2&nbsp;untuk&nbsp;OTTV&nbsp;dan&nbsp;30%&nbsp;untuk&nbsp;WWR.&nbsp;Walaupun&nbsp;demikian,&nbsp;dengan&nbsp;pengubahsuaian yang dilakukan dengan penambahan shading horizontal dan pengurangan&nbsp;luasan bidang kaca pada bagian tower, maka bisa didapatkan nilai OTTV sebesar 31,22 W/m<sup>2</sup>&nbsp;dan&nbsp;nilai&nbsp;WWR&nbsp;sebesar&nbsp;29,12%.&nbsp;Sehingga&nbsp;nilai&nbsp;tersebut&nbsp;bisa&nbsp;memenuhi&nbsp;standar&nbsp;dan&nbsp;mendapatkan poin penuh untuk kategori efisiensi energi. Dampak lainnya adalah Gedung&nbsp;Direktorat Politeknik Negeri Pontianak sebagai Bangunan Gedung Negara&nbsp;setelah dilakukan&nbsp;tindakan&nbsp;pengubahsuaian&nbsp;dapat&nbsp;diusulkan&nbsp;untuk&nbsp;mengambil&nbsp;sertifikat&nbsp;Bangunan&nbsp;Gedung&nbsp;Hijau.</p> <p>&nbsp;</p> Taufik Wibowo, Yudiarma Yudiarma, Ari Fitriyanto ##submission.copyrightStatement## https://ejurnal.polnep.ac.id/index.php/vokasi/article/view/783 Thu, 04 Jul 2024 11:34:12 +0700