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TEKNOSIA
Published by Universitas Bengkulu
ISSN : 19788819     EISSN : 27980588     DOI : https://doi.org/10.33369/teknosia.v17i1.28432
Core Subject : Science, Engineering,
Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Engineering Transportation
A journal TEKNOSIA, Provides a forum for publishing the original research articles, review articles from contributors, and the novel technology news related to pure and interdisciplinary of sciences and engineering. Scientific articles dealing with sciences, technology and engineering fields of electric and electronics, mechanics, materials, structure, civil, informatics, computer, etc. are particularly welcomed. This journal encompasses original research articles, review articles, and short communications, including: Fundamental of Electrics; Fundamental of Electronics; Telecomunication; Mechatronics; Informatics Engineering; Software Engineering; System Engineering; Mechanical Engineering; Design; Manufacture; Energy and Conservation; Materials; Civil Engineering; Water and Resources Engineering; Transportation; Structure; Management; Bio-System Application.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 62 Documents
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HYBRID METHOD USING ITARA AND MACONT FOR SELECTING THE BEST CUSTOMERS IN A DECISION SUPPORT SYSTEM Junhai Wang; Setiawansyah Setiawansyah; Riska Aryanti
Teknosia Vol. 20 No. 1 (2026): Vol. 20 No. 01 (2026): June 2026
Publisher : UNIB Press

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Abstract

This research is motivated by the company's challenges in objectively identifying high-value customers due to the numerous assessment criteria, heterogeneous data, and the use of conventional methods that are prone to subjective bias and ranking instability. To address these challenges, this study develops a decision support system based on the hybrid ITARA–MACONT method, where ITARA is used to determine criteria weights rationally based on indifference threshold deviation, while MACONT is applied to perform compromise aggregation in the alternative ranking process. The results show that the system can produce clear and consistent customer rankings, with Customer TY achieving a score of 0.7141 and ranking first, followed by Customer RD with a score of 0.6561 in second place, and Customer AH with a score of 0.5859 in third place. These findings indicate that the integration of ITARA–MACONT is effective in enhancing the objectivity, transparency, and stability of top customer selection results, thereby supporting strategic decision-making aimed at improving customer loyalty and business profitability.
Effect of Temperature on Slagging During Solid Refuse-Derived Fuel Combustion with Dolomite Additives: Pengaruh Temperatur Terhadap Slagging Pembakaran Bahan Bakar Jumputan Padat Dengan Penambahan Dolomit GALIH PRATAMA
Teknosia Vol. 20 No. 1 (2026): Vol. 20 No. 01 (2026): June 2026
Publisher : UNIB Press

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Abstract

This research analyzes the effect of combustion temperature on slagging formation in Solid Refuse-Derived Fuel (SRDF) and evaluates the effectiveness of dolomite additives in mitigating this issue. While SRDF is a promising alternative fuel for co-firing systems, its high ash and alkali metal content often lead to slagging, which can impair combustion performance. The experimental method utilized a muffle furnace with temperature variations of 600°C, 700°C, and 800°C for a duration of 120 minutes. The SRDF samples consisted of an 8:2 ratio of organic to inorganic waste, integrated with 10% dolomite additive based on a 50-gram total sample mass. Observed parameters included slagging mass, slag distribution, and calorific value. The results indicate that temperature significantly influences slagging formation. Furthermore, the addition of dolomite effectively reduces slag formation by increasing the ash fusion temperature through the creation of calcium-based compounds. With the additive, the fuel achieved a calorific value of 4,013.09 cal/g, meeting national (SNI) standards. Ultimately, dolomite proves to be an effective solution for optimizing SRDF utilization as a sustainable energy source in co-firing applications.

Page 7 of 7 | Total Record : 62

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