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All Journal International Journal of Social Science Journal of Innovation Research and Knowledge
Mutiara Efendi
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Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Economics, Econometrics & Finance Education Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Medicine & Pharmacology Public Health Social Sciences Other

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ANALISIS LAJU KEAUSAN DAN MANAJEMEN PERAWATAN ROLLER TYRE PADA VERTICAL MILL INDARUNG V PT SEMEN PADANG Reodhy Hamzah; Mutiara Efendi
Journal of Innovation Research and Knowledge Vol. 5 No. 2: Juli 2025
Publisher : Bajang Institute

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Abstract

Roller tyre merupakan salah satu komponen yang sangat penting dalam produksi semen. Pada PT semen padang terdapat kerusakan berupa aus yang sangat cepat dibandingkan dengan waktu umur perawatan atau pergantian alat tersebut. Sehingga komponen membutuhkan lebih banyak perawatan dari pada jadwal yang seharusnya. Maka diperlukan kajian analisis laju keausan dan menilai penyebab laju keausan roller tyre lebih cepat dari pada umur yang seharusnya. nilai terkikis ytre dalam satu kali putaran yaitu dengan waktu minimun tyre terkikis yaitu . beberapa kemungkinan yang menyebabkan peningkatan laju aus roller tyre yaitu basahnya batu kapur, tanah liat,pasir besi, rendahnya kualitas pengelasan pada sayap dan adanya kontaminasi seperti blok kayu dan plat logam yang tercampur pada batu kapur, tanah liat,pasir besi yang mengakibatkan beban kerja tyre lebih berat
THEORETICAL ANALYSIS OF CENTRIFUGAL PUMP SELECTION BASED ON HYDRAULIC PARAMETERS FOR ENERGY EFFICIENT IRRIGATION SYSTEM Rivanol Chadry; Mutiara Efendi; Rina, Rina; Rahmat Hafiz; Maheka Restu Araliz
International Journal of Social Science Vol. 5 No. 4 (2025): December 2025
Publisher : Bajang Institute

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The efficiency of an irrigation system is strongly influenced by the proper selection of the water pump type, optimized according to the hydraulic requirements and comprehensive operational efficiency considerations. This study presents a theoretical analysis of centrifugal pump selection for paddy field irrigation systems, considering head losses, flow rate requirements, and power demand required to achieve optimal operational efficiency. Hydraulic equations and performance curves of commercially available centrifugal pumps were used to determine the most suitable pump configuration for the irrigation system’s operating conditions. The calculations encompass key parameters, including flow rate, flow velocity, total dynamic head, and pump power, to identify the most efficient pump type for irrigation applications. The analysis reveals that the selected centrifugal pump, operating at a discharge rate of 0.0056 m³/s and suction head variations between 3 and 10 m, yields a total head ranging from 4.7648 to 12.6627 m and a corresponding shaft power of 0.4745 to 1.4919 hp, with the efficiency maintained constant at 55%. The computational results demonstrate that variations in suction head are proportional to corresponding changes in total head and pump power. This theoretical approach offers a technical framework for selecting efficient and cost-effective centrifugal pumps suitable for small- to medium-scale agricultural irrigation systems. These findings underscore the significance of the theoretical approach as an efficient and cost-effective preliminary method for designing irrigation pump systems grounded in hydraulic analysis.
OPTIMIZATION OF POWER CONTROL TO ENSURE STABLE ELECTRICITY SUPPLY IN MICRO-HYDRO POWER PLANT Nota Effiandi; Rahmat Hafiz; Mutiara Efendi; Vamellia Sari Indah Negara; Reodhy Hamzah
International Journal of Social Science Vol. 5 No. 4 (2025): December 2025
Publisher : Bajang Institute

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A This study proposes an optimization-based power control strategy to enhance voltage and frequency stability in micro-hydro power plants (MHPP). The approach integrates multi-objective optimization, adaptive control, predictive algorithms, and robust mechanisms to overcome instability caused by load and water flow variations. System modeling and simulation were performed in MATLAB/Simulink, followed by experimental validation on a laboratory-scale prototype. Results show significant improvements compared to conventional PID and fixed-gain Electronic Load Controllers (ELC), reducing voltage and frequency deviations by up to 69% and 67%, respectively. Total Harmonic Distortion (THD) decreased to 3.8%, power factor improved to 0.93, and overall efficiency reached 87.2%. The method proved effective, stable, and feasible for real-time microcontroller implementation, offering a reliable solution for isolated and rural MHPP systems.
Co-Authors Maheka Restu Araliz Nota Effiandi Rahmat Hafiz Reodhy Hamzah Rina Rina Rivanol Chadry Vamellia Sari Indah Negara