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All Journal Jurnal Laut Khatulistiwa Pendas : Jurnah Ilmiah Pendidikan Dasar Kinetika Journal of Research in Social Science and Humanities Journal of Engineering and Transportation (JET)
Ardian Saputra, Ardian
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PENGARUH LEVEL KETINGGIAN AIR TERHADAP EFFISIENSI THERMAL PADA CROSS SECTION WATER TUBE BOILER MENGGUNAKAN GAS DAN SOLAR PRODUKSI SATURATED STEAM PROSES KONTINYU Saputra, Ardian; Putra, Febbial Pratama; ., Tahdid; Manggala, Agus; ., Zurohaina
KINETIKA Vol. 11 No. 2 (2020): KINETIKA 01072020
Publisher : Politeknik Negeri Sriwijaya

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Abstract

Boilers are used to lower the temperature of the gas and diesel passed through the tubes, and to separate the fluid between the gas phase (water vapor) and the liquid phase (water). In the Boiler water feedback system, a controller is needed that is able to maintain the stability of the water level. The boiler used often has problems that cause less than optimal steam results. The problem that occurs is usually at the level of the water level with the fuel which causes the combustion results to be not optimal and has an impact on the steam produced to be not optimal. Therefore, this research will focus on determining the most appropriate water level with natural gas and diesel fuel so that maximum combustion results are obtained. The tube will also be installed vertically with a slope of 65ËšC with the aim of increasing heat transfer to the boiler and accelerating the evaporation of water molecules which are expected to produce more optimal steam. The parameters observed were temperature, pressure, and the temperature of the combustion flame, the aim was to determine the effect of air on fuel gas and diesel on the speed of temperature and pressure increase. The results of the research show that the optimal water level is the 5th condition (70%) because it can produce saturated steam according to the Efficiency target with a constant state in a continuous process using diesel and gas fuel.
Variations in Satisfaction from Prepaid and Postpaid Electricity Use Based on Community Perception in Bandar Sribhawono Sandora, Putri; Sugiono, Sugiono; Saputra, Ardian
Journal of Research in Social Science and Humanities Vol 4, No 2 (2024)
Publisher : Utan Kayu Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47679/jrssh.v4i2.150

Abstract

During World War II, electricity companies in Indonesia were controlled by Japan and subsequently seized by Indonesian youths after independence in September 1945, then handed over to the Republic of Indonesia government. President Sukarno established the Electricity and Gas Office on October 27, 1945. PLN (State Electricity Company) has adopted various innovations, including Prepaid Electricity Service (LPB), as part of efforts to enhance service quality to the public.This study focuses on comparing satisfaction between Prepaid and Postpaid electricity users based on community perceptions in Bandar Sribhawono. Data analysis methods using Chi-Square test and Coefficient of Contingency indicate that the presence of Prepaid PLN significantly contributes to improving community satisfaction, with a contingency coefficient value of 0.7985, exceeding the critical value set.These findings suggest that promotional strategies and services implemented by PT PLN (State Electricity Company) Distribution in Bandar Sribhawono have the potential to influence public preferences in choosing between Prepaid and Postpaid electricity. The implications of these findings can serve as a basis for enhancing marketing strategies and services to achieve broader adoption of Prepaid Electricity in the future. 
Faktor-faktor yang mempengaruhi efisiensi drainase di bandara: daya tampung , lokasi dan teknologi SAPUTRA, ARDIAN; SUKAHIR, SUKAHIR; SUNARDI, SUNARDI; PESILETTE, MUHAMMAD SYUKRI; KOMALASARI, YETI; FADHILLA NINA RIZKYANTI
Journal of Engineering and Transportation Vol. 2 No. 1 (2024): Journal of Engineering and Transportation
Publisher : Cipta Kind Publisher

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Abstract

Indonesia, sebagai negara yang sedang berkembang, terus menerus mengupayakan peningkatan hubungan dengan pasar global, dengan salah satu caranya adalah melalui sektor transportasi. Pentingnya pembangunan dan kemajuan ekonomi yang berkelanjutan menuntut kelancaran proses, sehingga mengurangi segala bentuk penghalang menjadi prioritas. Kendala yang sering muncul dalam lingkup transportasi, khususnya di area bandara, bisa menghambat operasi penerbangan dan memperlambat dinamika ekonomi nasional di tengah persaingan pasar dunia yang ketat. Drainase yang tidak memadai adalah salah satu faktor penghambat yang serius dalam operasional bandara. Genangan air di landasan pacu yang disebabkan oleh sistem drainase yang tidak efektif bisa membahayakan keselamatan penerbangan serta mengurangi umur pakai aspal. Karena itu, sangat dibutuhkan solusi yang bisa mengatasi masalah ini dan meningkatkan kinerja sistem drainase di bandara. Artikel ini akan mengulas tentang bagaimana kapasitas, lokasi, dan inovasi teknologi dapat mempengaruhi efisiensi drainase.
PENGEMBANGAN MEDIA WORDWALL BERBASIS KEARIFAN LOKAL PADA PEMBELAJARAN MATEMATIKA SISWA KELAS V SD NEGERI 18 LUBUKLINGGAU Saputra, Ardian; Supriyanto; Elya Rosalina
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 11 No. 03 (2026): Volume 11 Nomor 03, September 2026 Published
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v11i03.64686

Abstract

ABSTRACT This study aimed to develop a local wisdom-based Wordwall learning media for mathematics instruction for fifth-grade students at SD Negeri 18 Lubuklinggau that meets the criteria of validity, practicality, and effectiveness. The study employed the Research and Development (R&D) method using the ADDIE development model, which consists of five stages: analysis, design, development, implementation, and evaluation. The research subjects included material experts, media experts, language experts, a fifth-grade teacher, and fifth-grade students at SD Negeri 18 Lubuklinggau. Data were collected through interviews, validation questionnaires, teacher and student response questionnaires, and learning achievement tests. The data were analyzed using descriptive qualitative and quantitative techniques. The results indicated that the local wisdom-based Wordwall learning media achieved an average validity score of 90.67%, which falls into the very valid category. The practicality test yielded an average score of 92.14%, indicating that the media is very practical. Furthermore, the effectiveness test, based on the N-Gain analysis, produced a score of 0.67, which is categorized as moderate, indicating that the media is sufficiently effective in improving students' mathematics learning outcomes. Therefore, the local wisdom-based Wordwall learning media is considered suitable for use in fifth-grade mathematics learning as it fulfills the criteria of validity, practicality, and effectiveness.
Application of the STORET Index to Assess the Water Quality Status of the Selindung River in Relation to Vannamei Shrimp Farming Activities Pratiwi, Fika Dewi; Saputra, Ardian
Jurnal Laut Khatulistiwa Vol. 9 No. 2 (2026): July
Publisher : Dept. Marine Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/lkuntan.v9i2.110639

Abstract

The rapid expansion of Vannamei shrimp (Litopenaeus vannamei) aquaculture has led to increased effluent discharge containing substantial loads of organic matter and nutrients, which may adversely affect the quality of receiving waters when inadequately managed. This study aimed to evaluate the quality of shrimp pond effluent and to assess the water quality status of the Selindung River under the influence of such activities using the STORET index approach. The research was conducted from November to December 2023 across three sampling stations, namely the pond outlet (Station 1), the river segment directly receiving effluent discharge (Station 2), and the upstream reference site (Station 3). A suite of physicochemical and biological parameters, including temperature, total suspended solids (TSS), nitrate, phosphate, biochemical oxygen demand (BOD), dissolved oxygen (DO), pH, and total coliform, was analyzed. The findings revealed that effluent from the shrimp pond exhibited markedly elevated concentrations of BOD (51.6–61.3 mg/L) and phosphate (2.98–3.10 mg/L), indicating a substantial organic and nutrient load. In contrast, most water quality parameters at Stations 2 and 3 remained within the permissible limits of Class II water quality standards, although BOD concentrations slightly exceeded the threshold. Based on STORET index calculations, both stations were classified as lightly polluted, with a score of -8, primarily driven by elevated BOD levels. In conclusion, shrimp pond effluent contributes significantly to the organic loading of the Selindung River, despite the river’s inherent capacity for self-purification, thereby underscoring the necessity for improved effluent management strategies to ensure sustainable water quality.
Co-Authors ., Tahdid ., Zurohaina Abdulmuthalib Abdulmuthalib Agus Kosasih, Agus Aru W Sudoyo Ary H Reksodiputro, Ary H Auda Aziz, Auda Cosphiadi Irawan Djumhana Atmakusumah, Djumhana Elya Rosalina FADHILLA NINA RIZKYANTI Fika Dewi Pratiwi Idrus Alwi Linda Lison, Linda Lyana Lyana, Lyana Manggala, Agus Merry Wintery, Merry PESILETTE, MUHAMMAD SYUKRI Putra, Febbial Pratama Putri Sandora Sri Inggriani, Sri Sugiono Sugiono Sukahir, Sukahir Sunardi Sunardi Supriyanto Teguh Santoso Yeti Komalasari