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All Journal JPTK: Jurnal Pendidikan Teknologi dan Kejuruan Jurnal Pendidikan dan Pengajaran Rekayasa Mesin Jurnal Pendidikan Teknik Mesin Undiksha Quantum Teknika Multi Proximity: Jurnal Statistika Universitas Jambi Jurnal Pengabdian Masyarakat dan Riset Pendidikan Journal of The Indonesian Society of Integrated Chemistry Indonesian Journal on Learning and Advanced Education (IJOLAE)
Elisa, Edi
Universitas Pendidikan Ganesha
Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Education Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mathematics Mechanical Engineering Public Health Social Sciences Other

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Analisis Pengaruh Variasi Jarak Katup Ekspansi Dengan Kondensor Terhadap Laju Pendinginan Ruangan Dan COP Mesin Pengkondisian Udara Tipe Split Air Conditioning Wiratmaja, I Gede; Widayana, Gede; Elisa, Edi
Jurnal Pendidikan Teknik Mesin Undiksha Vol. 10 No. 1 (2022)
Publisher : UNIVERSITAS PENDIDIKAN GANESHA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jptm.v10i1.45806

Abstract

Penelitian ini merupakan jenis penelitian eksperimen yang bertujuan untuk memperoleh data - data unjuk kerja mesin pengkondisian udara tipe AC Split  berupa laju pendinginan ruangan dan COP (Coefficient Of Performance) pada setiap variasi jarak katup ekspansi dengan kondensor, untuk memberikan gambaran mengenai besarnya pengaruh variasi jarak katup ekspansi dengan kondensor terhadap performansi mesin pengkondisian udara.  Hal ini dilakukan dalam usaha untuk menjaga kinerja dari mesin serta memperpanjang usia pemakaian (lifetime). Penelitian ini dilakukan di laboratorium Teknik Pendingin, Program Studi Pendidikan Teknik Mesin Universitas Pendidikan Ganesha. Metode yang akan digunakan dalam penelitian ini adalah metode eksperimental yang dalam proses pengambilan datanya menggunakan teknik pengumpulan data melalui observasi langsung dilapangan, dokumentasi penelitian dan teknik analisa data menggunakan teknik penelitian deskriptif kuantitatif untuk mendeskripsikan atau memberikan gambaran secara sistematik terhadap fenomena yang terjadi selama penelitian dan disajikan dalam bentuk grafik serta diberikan uraian analisis secara deskriptif kuantitatif. Dari hasil penelitian diperoleh beberapa hasil penting yaitu besarnya laju pendinginan ruangan meningkat seiring dengan semakin panjangnya jarak antara katup ekspansi dengan kondensor dimana laju pendinginan ruangan tertinggi diperoleh pada variasi jarak 2 meter antara katup ekspansi dengan kondensor yang mana diperoleh hasil sebesar 0,0875 Kj/s (meningkat 27,8% dibandingkan dengan kondisi standar). Sebaliknya terdapat trend penurunan COP (Coefficient Of Perfomance) dari mesin pengkondisian udara seiring dengan semakin panjangnya jarak kondensor dengan katup ekspansi, dimana COP (Coefficient Of Perfomance) terendah diperoleh pada variasi jarak 2 meter antara katup ekspansi dengan kondensor yang mana diperoleh hasil sebesar 33,15 (menurun 27,8% dibandingkan dengan kondisi standar). Kata kunci : Laju pendinginan ruangan, COP (Coefficient Of Performance), katup ekspansi, variasi jarak katup ekspansi  dengan kondensor This research is a type of experimental research that aims to obtain data - data on the performance of ac split air conditioning machine in the form of room cooling rate and COP (Coefficient Of Performance) on each variation of the expansion valve distance with the condenser, to give an idea of the magnitude of the influence of variations in the distance of expansion valves with condensers on the performance of air conditioning machines.  This is done in an effort to maintain the performance of the machine and extend the life of use (lifetime). This research was conducted in the Refrigeration Engineering laboratory, Mechanical Engineering Education Study Program of Ganesha Education University. The methods that will be used in this research are experimental methods that in the process of data collection using data collection techniques through direct observation in the field, research documentation and data analysis techniques using quantitative descriptive research techniques to describe or provide a systematic picture of the phenomena that occurred during the research and presented in the form of graphs and given a description of the analysis in a quantitative descriptive manner.  From the results of the study obtained some important results, namely the magnitude of the cooling rate of the room increases along with the longer the distance between the expansion valve and the condenser where the highest room cooling rate is obtained at a variation of 2 meters between the expansion valve and the condenser which obtained a result of 0.0875 Kj / s (an increase of 27.8% compared to standard conditions). Conversely, there is a downward trend of COP (Coefficient Of Perfomance) from air conditioning machines along with the longer the condenser distance with the expansion valve, where the lowest COP (Coefficient Of Perfomance) is obtained at a distance of 2 meters between the expansion valve and the condenser which obtained a result of 33.15 (decreased by 28,2 % compared to standard conditions).Keywords: Room cooling rate, COP (Coefficient Of Performance), expansion valve, variation of expansion valve distance with condenserDAFTAR RUJUKANAnwar, K., Arif, E., & Piarah, W. H. (2010). Efek Temperatur Pipa Kapiler Terhadap Kinerja Mesin Pendingin. Jurnal Mekanikal, 1, 30–39.Asroni, M., Widodo, B., & Bakti, D. (2015). Kaji Eksperimental Karakteristik Termodinamika Dari Pemanasan Refrigerant 12 Terhadap Pengaruh Pendinginan. Jurnal Flywheel, 6(1), 41–46.Darmawan, A. S., & Putra, A. B. K. (2017). Studi Eksperimen Pengaruh Dimensi Pipa Kapiler Pada Sistem Air Conditioning Dengan Pre-Cooling. Jurnal Teknik ITS, 5(2), 918–922. https://doi.org/10.12962/j23373539.v5i2.20263Jumadi, Aziz, A., & Mainil, R. I. (2016). Pendingin Siklus Kompresi Uap Hibrida Menggunakan Refrigeran R 22. Jom FTEKNIK, 3(2), 3–6.Nugroho, A. S. (2018). Analisa Pengaruh Panjang Pipa Dan Diameter Pipa Subcooler, Terhadap Unjuk Kerja Mesin Pendingin, Dengan Penambahan Subcooling. Publikasi Online MahasiswaTeknikMesin UNTAG Surabaya, 1(1).Rohit Joshi, Patil, V., Patil, A., & Koli, T. (2016). Experimental Analysis of Thermostatic Expansion Valve, Constant Expansion Device & Capillary Tube on Vapour Compression Refrigeration System. International Journal of Scientific Engineering and Applied Science (IJSEAS), 2(6), 356–360.Rosyadi, A. A., Prizkiabi, W., & Triono, A. (2019). Analysis the Length of Capillary Pipe with Separation Condenser on the Performance of Refrigerator using Double Evaporator. Proteksion, 4(1), 22–27.Siang, J. tangalajuk, Oskar, I., Sawati, H., & Yanto, F. (2017). Studi Eksperimen Pengaruh Perubahan Panjang Pipa Kapiler terhadap Unjuk Kerja Mesin Pendingin dengan R290. Seminar Nasional Riset Dan Teknologi Terapan, August, 230–238.Sunu, P. W., Made Rasta, I., Anakottapary, D. S., Made Suarta, I., & Cipta Santosa, I. D. M. (2018). Capillary Tube and Thermostatic Expansion Valve Comparative Analysis in Water Chiller Air Conditioning. Journal of Physics: Conference Series, 953(1). https://doi.org/10.1088/1742-6596/953/1/012063Wiratmaja, I. G., Dantes, K. R., & Artha, E. A. J. (2020). Peningkatan Laju Pendinginan Ruangan Dengan Media Pendingin Kombinasi Udara Dan Air Disisi Kondensor Pada Mesin Pendingin Tipe Split Air Conditioning. Jurnal Pendidikan Teknik Mesin Undiksha, 8(1), 1–8. https://doi.org/10.23887/jptm.v9i1.33220
Pengembangan Media Pembelajaran Audio Visual Berbasis Powtoon Pada Mata Pelajaran Dasar-Dasar Otomotif Sub Pokok Alat-Alat Tangan (Handtools) Bagi Siswa Smk Adisantosa, I Gede Wahyu Denata; Elisa, Edi; Nugraha, I Nyoman Pasek
Jurnal Pendidikan Teknik Mesin Undiksha Vol. 11 No. 1 (2023)
Publisher : UNIVERSITAS PENDIDIKAN GANESHA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Penelitian pengembangan ini bertujuan untuk mengembangkan media pembelajaran audio visual berbasis powtoon pada materi dasar-dasar otomotif sub pokok alat-alat tangan (handtool’s) bagi siswa SMK. Penelitian pengembangan ini, berpedoman pada model pengembangan 4D (define, design, development, deseminate). Instrumen pengumpulan data yang digunakan pada penelitian ini yaitu metode kuesioner (angket). Untuk mengukur tingkat validitas dan kepraktisan media audio visual berbasis powtoon digunakan adalah rating scale.Data yang diperoleh kemudian dianalisis untuk memperoleh rata-rata dengan menggunakan rumus presentase. Yang menjadi subjek penelitian adalah ahli materi , ahli media, dan siswa kelas XII TKRO SMK Negeri 3 Singaraja. Hasil penelitian ini menunjukkan bahwa media pembelajaran audio visual berbasis powtoon pada materi dasar-dasar otomotif sub pokok alat-alat tangan (handtool’s) bagi siswa SMK dinyatakan sangat layak berdasarkan penilaian ahli materi dengan presentase 87% dan ahli media dengan presentase 91,3%. Sedangkan untuk tingkat kepraktisanya dinyatakan sangat praktis berdasarkan uji kelompok kecil dengan presentase 95,6% dan uji kelompok besar dengan presentase 89,6%, sehingga media pembelajaran yang telah dikembangkan dapat digunakan. Kata kunci: audio visual, media pembelajaran, powtoon
Indeks Calinski Harabasz Analisis Fuzzy C Means dan K Means Cluster Kabupaten/Kota di Provinsi Jambi Menurut Potensi Pertambangan, Penggalian, Pengadaan Listrik, dan Gas Mardhotillah, Bunga; Fadli, Amril; Elisa, Edi; Zurweni, Zurweni
Multi Proximity: Jurnal Statistika Vol. 2 No. 1 (2023): Applied Statistics
Publisher : Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (425.204 KB) | DOI: 10.22437/multiproximity.v2i1.25693

Abstract

Penelitian ini bertujuan untuk membandingkan Analisis Fuzzy C – Means dan K – Means Cluster dengan menghitung Indeks Calinski – Harabasz, di mana semakin tinggi Indeks Calinski – Harabasz suatu analisis cluster, semakin baik cluster yang terbentuk. Analisis Data menggunakan software JASP, data yang digunakan adalah data potensi pertambangan, penggalian, pengadaan listrik, dan gas berupa data kontibusi sektor – sektor tersebut dalam PDRB Kabupaten/Kota di Provinsi Jambi. Hasil penelitian menunjukkan dengan Analisis Cluster Fuzzy C – Means, terbentuk dua clusters, sedangkan dengan Analisis K – Means terbentuk tiga clusters. Indeks Calinski – Harabasz K – Means lebih tinggi dibandingkan dengan Fuzzy C – Means. Hasil penelitian ini menyimpulkan bahwa, berdasarkan perbandingan Indeks Calinski – Harabasz, Analisis Cluster K – Means lebih baik dibandingkan dengan Fuzzy C – Means Cluster.
Relation Visualization of Environmental Quality Index with Environmental Resource Indicators Using Multiple Indicators Multiple Causes Model Mardhotillah, Bunga; Zurweni, Zurweni; Elisa, Edi; Alim, Khairul
Multi Proximity: Jurnal Statistika Vol. 2 No. 2 (2023): Applied Statistics
Publisher : Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/multiproximity.v2i2.31022

Abstract

This research aims to visualize the model of environmental resource factors on the constituent factors of the environmental quality index using the multiple indicators multiple causes (MIMIC) method, using secondary data sourced from IKLH 2020. The predictor variables in this study include air quality, water quality, land cover quality, and environmental quality. Some of the indicators in this research are Conservation Forest Area, Limited Production Forest Area, Fixed Production Forest Area, Protection Forest Area, Coral Reefs, and Mangroves. Data Analysis using MIMIC Model generated by JASP Software, showing a very significant baseline and model factor. Some predictor coefficients have low standard error (close to zero), as well as significant indicators coefficients, except coral reefs, with a p-value of 0.736. The form model is worth using, since the RMSEA is worth 0.188. With a P-Value of 0.005. A high R-Squared is given by two indicators, namely Limited Production Forest Area, and Fixed Production Forest Area, respectively valued at 0.968 and 0.790
Lecturer Gender Perspective With Online Thesis Guidance Case Study Elista in Jambi University Jefri Marzal; Suwannit Chareen Chit; Edi Elisa; Pradita Eko Prasetyo Utomo; Dwi Agus Kurniawan; Rizka Octavia Sandra
Indonesian Journal on Learning and Advanced Education (IJOLAE) Vol. 4, No. 3, September 2022
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/ijolae.v4i3.18790

Abstract

This research is a mixed method research using an explanatory design. The purpose of this study is to use Elista to assess a lecturer's response to thesis guidance based on the lecturer's gender. This study was condi-cted in Jambi University, involving 330 female and 359 male lecturers respectively. The sampling method used was purposive sampling technique, with the sample criterion being academics who became thesis su-pervisors. Interviews and surveys on Elista were conducted and the responses were gathered. The goal of this study is to establish a technology-based final project guidance system in which it is explored if the thesis supervisor's speedy response to guidance at Elista is affected by the gender of the thesis supervisor. The findings of the study demonstrate that female supervisors respond faster than male supervisors when em-ploying technology such as Elista to carry out the guidance procedure. Elista improves the effectiveness and efficiency of the guidance process between supervisors and students in terms of implementation.
Co-Authors Adisantosa, I Gede Wahyu Denata Affan Malik Alim, Khairul Artayasa, Putu Budi Darmawan, Gede Dwi Agus Kurniawan Dwipa, Ketut Arya Fadli, Amril Galang Kawih Gede Arya Agung Prasmanta Yoga Gede Widayana Gede Widayana Gusmanely Z Hafid Ramadhan I Gede Diva Sumarta Yana I Gede Wiratmaja I Made Pasek Budi Susila I Nyoman Pasek Nugraha I Putu Heri Yudistira Jefri Marzal Kadek Rihendra Dantes Komala Dewi, Ida Ayu Putu Indah Made Widya Sarasta Mardhotillah, Bunga Muhammad Iqbal Multahadah, Cut Pitnelly Pitnelly Rayandra Asyhar Revis Asra Rizka Octavia Sandra Rodhiyah, Zuli Sastrawan, Dewa Gede Oka Sri Wahyuni Susanto, Gede Resta Ervan Suwannit Chareen Chit Syamsyida Rozi Utomo, Pradita Eko Prasetyo Wardi Syafmen Zurweni Zurweni Zurweni