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ANALISIS EFISIENSI BOILER CFB UNIT 3 MENGGUNAKAN METODE LANGSUNG DI PT PLN INDONESIA POWER OMU JERANJANG Joniarta, I Wayan; Al Buhori, Rashid Ridho; Made Wijana
Energy, Materials and Product Design Vol. 3 No. 1 (2024): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Mataram

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Abstract

A Boilers play an important role as steam power plants. A boiler is a closed vessel that is used to produce pressurized steam, where the resulting pressurized steam is used outside the boiler itself. This research aims to find out how to analyze the efficiency of CFB boilers. The analytical method used is the direct method. The results obtained show that the efficiency value of CFB boiler unit 3 of PLTU Jeranjang with a load of 25.8 MW, namely 73.17%, is quite low, this is caused by a lack of steam flow as a result of a leak in the upper boiler of PLTU Jeranjang unit 3, causing steam to come out of boiler and reduces its efficiency.
ANALISIS EFISIENSI POMPA SENTRIFUGAL PADA DESALINASI DENGAN PROSES REVERSE OSMOSIS: ANALYSIS OF CENTRIFUGAL PUMP EFFICIENCY IN DESALINATION WITH THE REVERSE OSMOSIS PROCESS Joniarta, I Wayan; Aprilian Dika, Ade; Wijana, Made
Energy, Materials and Product Design Vol. 3 No. 2 (2024): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Mataram

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Abstract

This study provides information for the desalination industry in an effort to improve the performance and efficiency of desalination systems using the reverse osmosis method. By paying attention to the factors that influence the efficiency of centrifugal pumps, the provision of clean water in areas experiencing a water crisis will be better. Reverse Osmosis (RO) is a system in desalination technology that is often used to replenish fresh water supplies. RO performance depends on the quality of sea water as the raw water source. RO works by utilizing osmotic pressure. Hydrostatic pressure which is greater than osmotic pressure is used to reverse the flow, thereby producing fresh water. RO utilizes a high-pressure pump process to flow seawater through a membrane polymer structure. In RO there is a main membrane module configuration which has two functions, namely supporting the performance of the RO membrane and providing efficient fluid management. The desalination system used at PT Perusahaan Air Indonesia America (PAIA) still uses centrifugal pumps and can produce a production capacity of 600-700 m3/day, and is still in the system upgrade stage. From the calculations that have been carried out, the pump efficiency value is 59.16%.
PENGARUH VARIASI BENTUK BRIKET ARANG BIOMASSA BERBAHAN LIMBAH KAYU TERHADAP NILAI KALOR DAN BOILING TIME : THE EFFECT OF VARIATIONS IN THE SHAPE OF BIOMASS CHARCOAL BRIQUETTES MADE FROM WOOD WASTE ON CALORIFIC VALUE AND BOILING TIME Usman, Zohimundin; Joniarta, I Wayan; Wijana, Made; Wiratama, I Kade
Energy, Materials and Product Design Vol. 4 No. 1 (2025): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/empd.v4i1.6805

Abstract

Most Indonesian people currently use energy derived from fossil fuels, such as fuel oil, gas and coal. The impact of using fossil fuels is that it can damage the environment. Several alternative energy sources that are commonly developed are biomass energy. This biomass is usually processed into biochar which is a fuel with a high calorific value and can be used in everyday life. Briquettes are an energy source derived from biomass which can be used as alternative energy. In this study, briquettes were made from teak, acacia and mahogany wood waste. The method used is an experiment with the carbonization process using a modified composing drum. The independent variables used were briquette materials from teak, acacia and mahogany wood waste, variations in the shape of cube, cylindrical and hexagonal jerry cans. Tests include analysis of water content, calorific value, and changes in temperature. The results of this study showed that the best moisture content was obtained from cylindrical teak wood waste briquettes with an average value of 3.57%. Then for the calorific value, the best results were obtained from cylindrical teak wood waste briquettes with a value of 3457.0 Kkal/kg. and for temperature changes the best results were obtained on the cube-shaped mahogany wood waste briquette specimens with an average value of 10 minutes 46 seconds.
ANALISIS EFISIENSI ENERGI PADA PROSES PENGERINGAN GABAH MENGGUNAKAN DRYER GRAINPRO 30T-HS DI PT KARUNIA TRINITAS AGRO Joniarta, I Wayan; Ananda Putra, Yoga Raditya; Wijana, Made; Wiratama, I Kade
Energy, Materials and Product Design Vol. 4 No. 2 (2025): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/h62cpf76

Abstract

Rice is a key food commodity that plays a strategic role in maintaining national food security. One of the important stages in post-harvest processing is grain drying, as excessive moisture content can reduce rice quality and accelerate deterioration during storage. This study aims to analyze energy efficiency in the grain drying process using the GrainPro 30T-HS dryer at PT Karunia Trinitas Agro. The research method was conducted through direct observation with measurements of grain moisture content, drying temperature, process duration, husk fuel consumption, and electricity usage. The results showed that grain moisture decreased from 25.1% to 12.5% with a total mass of 23,000 kg. The drying process was carried out at 60 °C for 17 hours, with husk consumption of 1,500 kg and electrical power of 19 HP. Based on the calculation, the energy efficiency of the dryer reached 34.65%, which is relatively higher compared to other studies on biomass-fired batch dryers. This finding highlights that utilizing rice husks as fuel is not only economical but also environmentally friendly, thus the GrainPro 30T-HS can be recommended as an efficient drying system for industrial-scale applications..
Sosialisai Pengaruh Intensitas Cahaya terhadap Kenyamanan dan Kesehatan Mata pada Proses Belajar Mengajar di Ruang E Jurusan Teknik Elektro Fakultas Teknik Universitas Mataram Perdana Putra, I Ketut; Wiryajati, I Ketut; Bawa Susana, I Gede; Sri Adnyani, Ida Ayu; Joniarta, I Wayan
JURNAL KARYA PENGABDIAN Vol. 7 No. 2 (2025): Oktober, Jurnal Karya Pengabdian
Publisher : Jurusan Teknik Mesin FT Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jkp.v7i2.224

Abstract

Pencahayaan yang optimal di dalam ruang kelas memiliki peran penting dalam mendukung kenyamanan visual, konsentrasi, serta efektivitas proses belajar mengajar secara keseluruhan. Kegiatan pengabdian masyarakat ini bertujuan untuk mensosialisasikan pentingnya kualitas intensitas cahaya pada ruang kelas E di Jurusan Teknik Elektro, Fakultas Teknik, Universitas Mataram. Metode yang digunakan meliputi pengukuran intensitas cahaya menggunakan lux meter digital, penyampaian materi edukatif, serta diskusi interaktif bersama dosen dan mahasiswa. Hasil pengukuran menunjukkan bahwa intensitas pencahayaan di kedua ruang kelas berada di bawah standar minimum 350 lux sebagaimana tercantum dalam SNI 6197:2011. Kondisi ini berpotensi menurunkan kenyamanan belajar dan menyebabkan kelelahan visual. Kegiatan sosialisasi ini berhasil meningkatkan kesadaran peserta akan pentingnya pencahayaan ruang kelas yang memadai, serta menghasilkan rekomendasi praktis seperti penggunaan lampu LED dan penambahan titik pencahayaan. Diharapkan hasil kegiatan ini dapat mendorong perbaikan nyata menuju terciptanya lingkungan belajar yang lebih nyaman dan produktif.
Pengenalan Prinsip Ergonomi dalam Angkat-Angkut Peralatan di Laboratorium Listrik Dasar Jurusan Teknik Elektro Universitas Mataram Bawa Susana, I Gede; Wiryajati, I Ketut; Perdana Putra, I Ketut; Wirya Aryadi, I Gusti Agung Ketut Chatur Adhi; Joniarta, I Wayan
JURNAL KARYA PENGABDIAN Vol. 7 No. 2 (2025): Oktober, Jurnal Karya Pengabdian
Publisher : Jurusan Teknik Mesin FT Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jkp.v7i2.225

Abstract

Aktivitas angkat-angkut peralatan di laboratorium listrik dasar jurusan Teknik Elektro seperti aerator sering kali dilakukan tanpa memperhatikan prinsip ergonomi, sehingga berisiko menimbulkan kelelahan fisik dan gangguan muskuloskeletal. Kegiatan pengabdian ini bertujuan untuk memperkenalkan prinsip dasar ergonomi kepada teknisi yang terlibat dalam kegiatan praktikum di Laboratorium Listrik Dasar Jurusan Teknik Elektro Universitas Mataram. Metode yang digunakan mencakup observasi awal, penyuluhan teori, pelatihan praktik ergonomis, serta evaluasi melalui kuesioner dan diskusi. Hasil kegiatan menunjukkan peningkatan pemahaman peserta terhadap pentingnya postur kerja yang benar dan penggunaan teknik angkat-angkut yang lebih aman, seperti mengangkat beban bersama dua orang dan menggunakan kekuatan kaki. Peserta menyatakan memahami prinsip dasar ergonomi dan mampu menerapkan teknik angkat-angkut secara tepat. Kegiatan ini menunjukkan bahwa edukasi ergonomi yang sederhana namun aplikatif dapat meningkatkan kesadaran akan keselamatan kerja serta mengurangi risiko cedera. Diperlukan tindak lanjut berupa penyusunan SOP ergonomi laboratorium dan penyediaan alat bantu kerja untuk mendukung praktik ergonomis secara berkelanjutan.
Edukasi Pengolahan Sabut Kelapa Di Desa Pemenang Timur Sujita, Sujita; Padmiatmi, Pandri Padmiatmi; Zainuri, Ahmad Zainuri; I Wayan Joniarta
JURNAL KARYA PENGABDIAN Vol. 7 No. 2 (2025): Oktober, Jurnal Karya Pengabdian
Publisher : Jurusan Teknik Mesin FT Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jkp.v7i2.228

Abstract

Desa Pemenang Timur, Kecamatan Pemenang, Kabupaten Lombok Utara, terkenal sebagai sentra penghasil kelapa. dan juga telah diresmikan sebagai Lokasi Sentra Olahan Kelapa Kabupaten Lombok Utara. Badan usaha tersebut merupakan hasil kerja sama Kementrian Perindustrian Republik Indonesia, dengan Pemerintahan Provinsi Nusa Tenggara Barat, dan Pemkab Lombok Utara. Produksi dan pengolahan kelapa menjadi berbagai produk bernilai tinggi seperti minyak VCO, minyak goreng kelapa, tepung kelapa, keripik, dan sabun. Walaupun demikian pemanfaatkan limbah seperti sabut kelpa masih belum maksimal. Sabut kelapa menumpuk, ada yang dibakar sehingga mengganngu pemandangan alam yang tampak indah dan menyebabkan polusi udara akibat asap hasil pembakaran sabut kelapa Tujuan pengabdian masyarakat memecahkan permasalahan tersebut dengan metode penyuluhan dan mengedukasi langsung pengolahan sabut kelapa yang masih dianggap limbah. Metode pelaksanaan kegiatan pengabdian masyarakat adalah dengan penyuluhan dan praktek langsung tentang cara mengolah sabut kelapa dengan peralatan sederhana, dan evaluasi. Berdasrkan hasil evaluasi hasil kegiatan masyarakat khalayak sasaran merasa puas karena masalah limbah sabut kelapa teratasi, dengan cara mengolahnya menjadi serat sabut kelapa dan serbuk sabut kelapa yang bernilai ekonomi tinggi, sehingga bisa meningkatkan kesejahteraan masyarakat khlayak sasaran Kata kunci: sabut kelapa, serat sabut kelapa, serbuk sabut kelapa
KONSTRUKSI BRANDING PRODUK MELALUI STRATEGI KOMUNIKASI PEMASARAN TERPADU PADA AKUN @melvantbali Dinda Vania Zabrina Rachman; I Gusti Ayu Agung Dewi Sucitawathi Pinatih; Melati Budi Srikandi; I Wayan Joniarta
Journal of Innovation Research and Knowledge Vol. 5 No. 8 (2026): Januari 2026
Publisher : Bajang Institute

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Abstract

This study aims to analyze the implementation of Integrated Marketing Communication (IMC) on the Instagram account @melvantbali in building brand image and strengthening product branding as a local streetwear-based fashion brand. This research employs a descriptive qualitative method and is grounded in the IMC framework proposed by Kotler and Keller, which consists of eight key elements of marketing communication: advertising, sales promotion, events and experiences, public relations and publicity, online and social media marketing, mobile marketing, direct and database marketing, and personal selling. The findings show that these communication elements operate in an integrated and consistent manner, creating message unity, visual identity continuity, and a strong brand experience in the minds of the audience. Advertising through visual content shapes brand identity, sales promotion is applied selectively without reducing brand exclusivity, events and experiences strengthen consumer trust through direct interaction, while public relations reinforces brand legitimacy and value through storytelling. Furthermore, online and social media marketing enable participatory two-way communication, mobile marketing fosters psychological closeness through real-time responses, direct and database marketing build personalized relationships with consumers, and digital personal selling functions as a supportive process in purchase decision-making. These findings indicate that IMC is not merely a promotional instrument, but a relational strategy that shapes emotional engagement, brand awareness, and consumer trust toward the brand.
Green Energy Policy Implementation in Bali: Challenges and Opportunities Antari, Ni Putu Bayu Widhi; Pinatih, I.G.A.A. Dewi Sucitawathi; Joniarta, I Wayan
Bali Membangun Bali: Jurnal Bappeda Litbang Vol 6 No 2 (2025): Agustus 2025
Publisher : Badan Riset dan Inovasi Daerah Provinsi Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51172/jbmb.v6i2.465

Abstract

Purpose: This study aims to explain the implementation of green energy policies in Bali as a popular international tourist destination as well as identify various opportunities and challenges faced by the Bali Provincial Government in implementing green energy policies. Research methods: The study utilizes qualitative methods by conducting interview and collecting secondary data. Qualitative data analysis is carried out by making verbatims, reducing the unimportant discussion, coding the discussion, and classifiying to the themes. Findings: Bali provincial government enacted some green energy policies, but in term of sustainable waste management, the policy should regulate about how landfill is built and how the gas is converted to the energy. Implication: The hurdles are enough capacity of fossil energy sources, bad experience in wind power establishment, and lack of government financial supports.
IMPLEMENTATION OF THE ELABORATION LIKELIHOOD MODEL (ELM) IN THE POLITICAL COMMUNICATION STRATEGY OF THE JAYA-WIBAWA PAIR ON INSTAGRAM IN THE 2024 DENPASAR REGIONAL ELECTION Bayu Nata Negara; Pratiwi, Nuning Indah; Joniarta, I Wayan; Latupeirissa, Jonathan Jacob Paul
Qawwam : The Leader's Writing Vol. 6 No. 2 (2025): December
Publisher : Fakultas Ushuluddin Adab dan Dakwah Insitut Agama Islam Negeri Kerinci

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Abstract

This study examines the political communication strategies of the Jaya-Wibawa couple to form their leadership image through the @jayawibawadenpasar Instagram account in the 2024 Denpasar Regional Elections, based on the Elaboration Likelihood Model (ELM) framework. The methodology used is qualitative descriptive, which is carried out by observing the content and responses from the comment column, completing digital documentation, literature studies, and conducting in-depth interviews with members of the Jaya-Wibawa couple's campaign team. The findings of this study indicate that this couple's communication approach is built on two main categories, namely incidental content and persuasive content, which complement each other to achieve engagement and appeal to young voters. The application of ELM theory can be seen in the merger of two persuasion paths. The central path emerges through data-driven content, explanations of programs, and policy arguments that encourage high elaboration, which is demonstrated by the audience's critical comments on the effectiveness of the program and the sustainability of public policy. Meanwhile, peripheral pathways are more visible through aesthetic visual elements, music, symbols of unity, and emotional touches that create a positive impression without deep analysis. The merger of these two channels of persuasion has succeeded in increasing the electability of candidate pairs. This study confirms that Instagram plays the role of an interactive and live-action political communication platform, which is able to strengthen the legitimacy of candidates and encourage the participation of young voters through a lightweight, visual, and accessible campaign approach.
Co-Authors A. D. Catur A.A Alit Triadi A.A. Alit Triadi, A.A. Alit Abdullah Jundi Ade Aprilian Dika Adhi, I.G.A.K.C. Agus Dwi Catur Agus Suroso Ahliwathany Rivaldi Al Buhori, Rashid Ridho Alfandiansyah Muhammad Alfi Sahrin, Laila Aljibran, Aljibran Anak Agung Alit Triadi Anak Agung Alit Triadi Ananda Putra, Yoga Raditya Aprilian Dika, Ade Arif Mulyanto Astiani, Arbiatun Atas Pracoyo Bawa Susana , I Gede Bayu Nata Negara Budiana, I Nyoman CATUR ADHI , I GUSTI AGUNG KETUT Chatur Adi W.A., I G.A.K. Chatur Adi.W.A, I.G.A.K Denanda, Andry Aprillya Dewi, Ni Putu Dian Cahayani Surya Dinda Vania Zabrina Rachman Dini Suryaningsih Dodi Setyawan Fani Ladira Farah Najwasyah Farah Najwasyah Febriyawan, Gilang Fini Laelani Puspitasari Firmansyah, Maman Fitrirayani, Gadis Ariva Harahap, Herpan Syafil Hartana Hartati, Dea Rara Hasyim Kholid Hasan Qorib Hasyim, Hasyim Heri Sulistiyono Hermanto, Koko Herpan Syafil Harahap Huriah Huriah I Dewa Gede Jaya Negara I G.A.K Chatur Adhi W.A. I G.A.K. Chatur Adi W.A. I Gede Bawa Susana I Gusti Ayu Agung Dewi Sucitawathi Pinatih I Gusti Putu Muliarta Aryana I Gusti Putu Muliarta Aryana I K. Wiratama I Kade Wiratama I Kade Wiratama, I Kade I Ketut Perdana Putra I Ketut Wiryajati I Made Adi Sayoga I Made Adi Sayoga I Made Adi Sayoga, I Made I Made Nuarsa I Made Suartika I Made Suartika I Made Wijana . I Nyoman Merdana I Nyoman Nugraha Ardana Putra I Putu Yuda Pratama I Wayan Suderana I Wayan Yasa I Wayan Yasa, I Wayan I.B Alit I.B. Alit I.D.K. Okariawan I.G.A.AG. Dewi Sucitawathi Pinatih I.G.A.K Chatur A.W.A I.K Wiratama I.M. Mara I.M. Nuarsa I.M.A Sayoga I.M.A. Sayoga Ida Ayu Sri Adnyani Ida Bagus Alit Ida Bagus Fery Citarsa Ilham Maulana Akbar Iswara, I.B.K.T.H. Julidio, Alief Jurnal Pepadu Karyawan, I Dewa Made Alit Laeli, Inayatul Lalu Banu Samudera Latupeirissa, Jonathan Jacob Latupeirissa, Jonathan Jacob Paul M Wijana M. Mirmanto, M. M. Wijana M. Wijana, M. Made Mahendra Made Nuarsa, Made Made Wijana Made Wijana Made Wijana, Made Made Wirawan, Made Maharani, Ni Putu Riza Mahendra, Made Masintan, Masintan Melati Budi Srikandi Melinda Ade Kantari Muhamad Renaldi Setiawan Muhamad Renaldi Setiawan Muhammad Arif Fitriyono Muhammad fauzan Muhammad, Baginda Arsyi Mursidin Syaefa N. Nurchayati, N. N. Nurpatria, N. Nabilla Mandalika Nabilla Mandalika Ni Ketut Arniti Ni Ketut Surasni Ni Luh Yulyana Dewi Ni Putu Bayu Widhi Antari Ni Putu Sawitri Nandari Ni Putu Yunita Anggreswari Nopia Ramdhani, Riyan Nora Dery Sofya Nuarsa M Nuning Indah Pratiwi Nur Kaliwantoro Nurchayati Nurchayati Padang, Y.A. Padmiatmi, Pandri Padmiatmi Panca Sunu Pamungkas Pandri Pandiatmi Panesa Aulia, Linda Paryanto Dwi Setyawan Perdana Putra, I Ketut Permana, Made Bagus Dwi Pinatih, I.G.A.A. Dewi Sucitawathi Putra, Ardi Wijaya Putra, I Ketut Perdana Putri , Sarina Adila Putri Ekaresty Haes Putri, Ghea Sabina Anggia Ramadhan, Galang Baruna Rashid Ridho Al Buhori Rifki, Lalu Muhammad Rizky Fathullah Rohayani, Tri Sari Rudy Sutanto S. Sujita Sabathian Poedjiarso, Benhard Okta Sahri Aflah Ramadiansyah Salsabila, Aulivia Nanda Samudera Lalu Banu Santosa, Wahyudi Saqinah, Inang Siti Umrah Sofya, Nora Dery Sri Maryati Suartika , I Made Suartika M Sucitawathi Pinatih , I Gusti Ayu Agung Dewi Sucitawathi, I G.A.A. Dewi Sujita Darmo Sujita Darmo Sujita, Sujita Sultan Sultan Sultan Sultan Supaerina, Eji Supriono Supriono Surya Buana, I Gede Eka Tiara Dwi Astuti Tiara Dwi Astuti Tira Aulana, Dina Triadi A.A.A Triadi, Anak Agung Alit Usman, Zohimundin Wahyudi Santosa Wayan Widhiastini WAYAN, I WAYAN SUKANIA Widiantari, Githa Nirmala Winda Maliana Hainingsih Wirya Aryadi, I Gusti Agung Ketut Chatur Adhi Yudhyadi, I Gusti Ngurah Ketut Yuliadi Yuliadi Yuliadi Yuliadi Yusron Saadi Yustina Agninoy Jarut Zainuri, Ahmad Zainuri Zohimundin Usman