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All Journal Rekayasa Mesin SMATIKA International Journal of Education, Science, Technology, and Engineering (IJESTE) International Journal of Engineering, Technology and Natural Sciences (IJETS) JTAM ROTARY Journal of Industrial Engineering and Operation Management (JIEOM)
Ikhsan, M. Rizki
Teknik Industri, Universitas Sari Mulia
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Studi Kinerja Solar Water Heater Dengan Aliran Zig-zag Beralur Balok Ikhsan, M. Rizki; Soeparman, Sudjito; Sasongko, Mega Nur
Jurnal Rekayasa Mesin Vol 8, No 1 (2017)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1172.798 KB) | DOI: 10.21776/ub.jrm.2017.008.01.6

Abstract

Solar energy can be used for water heating by using solar water heater application. Therefore, its still needs some modification due to its low efficiency. This modification can be done by replacing the conventional plate of solar collectors into a double plate with a zig-zag pattern. The results shown that along with the decreasing of water flow rates could significantly increase the useful energy (Qu). Initial temperature of water inlet could affect the generated maximum temperature. The highest mean efficiencies of double plate solar water heater with a zig-zag grooved beams pattern of 49.11% was gained in the flow rate of 700 mL / min.
PENERAPAN METODE PERAMALAN SEBAGAI ALAT BANTU UNTUK MENENTUKAN PERENCANAAN PRODUKSI PADA PERCETAKAN SURAT KABAR M Rizki Ikhsan; Agustina Tumanggor
Journal of Industrial Engineering and Operation Management Vol 3, No 1 (2020)
Publisher : Universitas Islam Kalimantan Muhammad Arsyad Al Banjari Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31602/jieom.v3i1.3311

Abstract

Abstrak–Tujuan penelitian adalah untuk melakukan peramalan permintaan tinta di PT. XYZ karena keadaan permintaan surat kabar setiap harinya berubah sehingga berpengaruh terhadap tinta cetak. Metode penelitian yang digunakan adalah Metode Pemulusan Eksponensial Tunggal (Single Exponential Smoothing), Regresi Linier dan Metode Analisis Data Agregat dengan Jadwal Induk Produksi (Master Production Scheduled). Hasil penelitian ini menurut Metode Pemulusan Eksponensial Tunggal (Single Exponensial Smoothing) diperoleh nilai kesalahan yang lebih kecil, dimana masing-masing itemnya adalah sebagai berikut diperoleh nilai kesalahan yang lebih kecil, dimana untuk masing-masing itemnya adalah sebagai berikut: untuk Tinta Web Cyan menghasilkan untuk periode selanjutnya diramalakan jumlah pemakaiannya sebesar 4,23 Kg. Pada Tinta Web Magenta menghasilkan untuk periode selanjutnya diramalkan jumlah pemakaiannya sebesar 3,73 Kg. Pada Tinta Web Yellow menghasilkan untuk periode selanjutnya diramalkan jumlah pemakaianya sebesar 5,58 Kg. Pada Tinta Web Black menghasilkan untuk periode selanjutnya diramalkan jumlah pemakaiannya sebesar 25.15 Kg. maka semakin baik pula peramalan karena semakin kecil tingkat kesalahan pada ramalan. Kata Kunci : Jadwal Induk Produksi, Linier regresi, Pemulusan Eksponential Tunggal
Analisis Penggunaan M-Attendance Student dengan Pendekatan TAM dan UTAUT Bayu Nugraha; Nurhaeni Nurhaeni; M Rizki Ikhsan
SMATIKA JURNAL Vol 12 No 01 (2022): SMATIKA Jurnal : STIKI Informatika Jurnal
Publisher : LPPM STIKI MALANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32664/smatika.v12i01.657

Abstract

M-Attendance is an online attendance system that can simplify the method of recording student attendance so as to reduce errors and speed up verification. This study aims to determine the success rate of implementing the M-Attendance Student system as student attendance at Sari Mulia University (UNISM) using the TAM (Technology Acceptance Model) and UTAUT (Unified Theory of Acceptance and Use of Technology) methods. The TAM method can be used to explain the factors of user behavior towards technology acceptance, user acceptance behavior towards technology, while through UTAUT it can be understood that the user's reaction and perception of technology can affect his attitude in accepting technology use. This study uses all the variables of the two methods. Measurement of the data analyzed in this study using a questionnaire distributed to 100 respondents, namely students at Sari Mulia University.Based on the results of the analysis of the TAM method, it was found that the intention to use the actual effect on the use of the system was 77%, the intention to use was influenced by the attitude towards the use of 41.7% and the perception of the usefulness of 43%, the attitude towards the use was influenced by the perception of the usefulness of 41. 5% and the perception of the ease of use of 49.7%, the perception of the ease of use affects the perception of the usefulness of 87.9%. Meanwhile, based on the results of the analysis of the UTAUT method, it was found that the intention to use and the facilitating conditions affected user behavior by 68% and 31%, usage behavior was only influenced by business expectations by 56% and social influence by 44.6%. Expectations on performance have no effect because they only get a score of 0.13%.
SIMULASI CFD UDARA DI SEKITAR RUMAH TRADISIONAL BANJAR TIPE BUBUNGAN TINGGI Ikhsan, M. Rizki; Rizali, Muhammad; Nugraha, Bayu
JTAM ROTARY Vol 6, No 1 (2024): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v6i1.10292

Abstract

Rumah Banjar tipe bubungan tinggi merupakan salah satu model rumah tradisional di Kalimanan Selatan, yang mempunyai bentuk atap yang curam dan tinggi. Untuk melestarikan tipe rumah tradisional ini, maka bangunan-bangunan modern dibangun mengikuti tipe bubungan tinggi. Tipe rumah bubungan tinggi mempunyai kekayaan lokal yang perlu diteliti. Penelitian ini bertujuan untuk mensimulasikan udara di sekitar rumah tradisional Banjar tipe bubungan tinggi, sebagai akibat dari angin di sekitar bangunan tersebut. Simulasi dilakukan dengan menggunakan perangkat lunak Simflow. Model rumah banjar berukuran panjang 37 m, dan tinggi 16 m. Arah angin divariasikan dari arah depan dan belakang dengan kecepatan aliran 5 m/s. Parameter yang diamati adalah profil tekanan dan kecepatan udara di sekitar bangunan secara horizontal dan vertikal. Dari simulasi yang dilakukan, didapatkan bahwa angin dari arah depan lebih berpengaruh pada parameter udara di sekitar rumah bubungan tinggi. Posisi konsentrasi kecepatan udara berada di bagian bawah atap bubungan tinggi. Hasil simulasi dapat digunakan sebagai pertimbangan dalam memposisikan ventilasi udara pada bangunan. The high ridge type Banjar house is one of the traditional house models in South Kalimantan, which has a steep and high roof shape. To preserve this type of traditional house, modern buildings are built following the type of high ridge. The type of high ridge house has local wealth that needs to be researched. This study aims to simulate the air around a traditional high-ridge type Banjar house, as a result of the wind around the building. The simulation was performed using Simflow software. The banjar house model measures 37 m long, and 16 m high. The wind direction is varied from the front and rear directions with a flow speed of 5 m/s. The parameters observed are the profile of pressure and airspeed around the building horizontally and vertically. From the simulations carried out, it was found that the wind from the front had more influence on the air parameters around the high ridge house. The position of the airspeed concentration is at the bottom of the roof of the high ridge. The simulation results can be used as a consideration in positioning the air vents in the building.
Solar Geometry Factor in the Traditional Banjar “Bubungan Tinggi” House Ikhsan, M. Rizki; Siska, Madschen Sia Mei Ol; Hidayah, Nur; Rizali, Muhammad; Halimah, Mahda
International Journal of Education, Science, Technology, and Engineering (IJESTE) Vol 5 No 1: June 2022
Publisher : Lamintang Education and Training Centre, in collaboration with the International Association of Educators, Scientists, Technologists, and Engineers (IA-ESTE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36079/lamintang.ijeste-0501.372

Abstract

The Banjar tribe in South Kalimantan has a traditional Bubungan Tinggi house, which is intended for nobles. This house is made of wood, in the form of a stilt with one roof angled upwards. This paper examines the solar geometry factor on the high ridge house, which is found on the pointed roof having a small geometric factor, so that the solar energy absorbed on the taper roof is small. This proves the local wisdom of the community in getting thermal comfort in their homes.
Designing and Developing Leak Detection Tool Prototype for Liquefied Petroleum Gas Cylinders Hambali, Ahmad; Tambun, Madschen Sia Mei Ol Siska Selvija; Kurniawan, Muhammad Ari; Triyanto, Irfan Rusydi; Ikhsan, M. Rizki
Jurnal Internasional Teknik, Teknologi dan Ilmu Pengetahuan Alam Vol 6 No 2 (2024): International Journal of Engineering, Technology and Natural Sciences
Publisher : Universitas Teknologi Yogyakarta, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46923/ijets.v6i2.398

Abstract

Frequent fire incidents from three kilograms Liquefied Petroleum Gas (LPG) cylinder leaks have raised concerns and criticism of the government’s gas conversion program, highlighting the need to prevent leaks caused by excessive pressure or damaged components. This study aims to design and develop a prototype tool to detect leaks in 3 kg LPG cylinders, enhancing operational safety and efficiency. The research employed an observational approach, involving direct field observations at PT Agra Budi Gas Utama SPBE. The study examined the operational processes, the application of LPG leak detection tools, and the interaction between operators and existing equipment. The research reveals that Nordic Body Map (NBM) analysis identifies moderate injury risks, with workers experiencing pain in the shoulders, hands, back, and legs due to repetitive movements, prolonged standing, and non-ergonomic workstations. Using anthropometric data of the Indonesian population (50th–95th percentiles), the design introduced key features such as a height-adjustable hydraulic jack, a conveyor system to reduce manual labor, a 60.75-liter water container for leak detection, and safety locks for improved stability. These innovations aim to minimize musculoskeletal injuries, optimize posture, and enhance productivity, with ongoing evaluation recommended for sustained workplace safety and efficiency. Indeed, the trial implementation of the prototype demonstrated its effectiveness in facilitating the detection of leaks, significantly improving the efficiency and accuracy of leak checks performed by operators.
Co-Authors Agustina Tumanggor Ahmad Hambali, Ahmad Bayu Nugraha Bayu Nugraha Halimah, Mahda Irfan Rusydi Triyanto Kurniawan, Muhammad Ari Mega Nur Sasongko Nur Hidayah Nurhaeni Nurhaeni Rizali, Muhammad Siska, Madschen Sia Mei Ol Sudjito Soeparman Tambun, Madschen Sia Mei Ol Siska Selvija