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All Journal Rekayasa Mesin Jurnal Rekayasa Material, Manufaktur & Energi JCRS (Journal of Community Research and Service)
Siregar, Batumahadi
Department Of Mechanical Engineering Education, Universitas Negeri Medan, Medan, Indonesia
Aerospace Engineering Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Mechanical Engineering Social Sciences

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UTILIZATION OF ORGANIC WASTE TO ORGANIC FERTILIZER IN THE ELEMENTARY SCHOOLS OF SIJUNJUNG DISTRICT Faisal Faisal; Diky Setya Diningrat; Batumahadi Siregar; Kustoro Budiarta
Journal of Community Research and Service Vol 3, No 2: July 2019
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jcrs.v3i2.16060

Abstract

The Program for Applying Appropriate Technology (PPTTG) aims to utilize organic waste into organic fertilizer in SD Negeri 13 Muaro and SD Negeri 3 Muaro, Sijunjung District, Sijunjung Regency, West Sumatra Province. This program is carried out based on an analysis of problems faced by partners, including: (1) awareness of school residents disposing of rubbish where it is still low, (2) the amount of organic waste generated every day so that it becomes a serious problem for schools, (3) schools have not been able to treating organic waste into high quality products. Seeing this problem, it is necessary to look for solutions in the form of: (1) mentoring waste management literacy, (2) socialization of the utilization of organic waste into organic fertilizer, and (3) assistance using organic waste to technology-based organic fertilizer. The results of the application of technology showed that the average success rate of the program reached 85,11% with the Good category. This means that the application of technology in the form of utilizing organic waste into organic fertilizer can be implemented well in elementary schools in Sijunjung Regency.Keywords: Organic Waste; Organic Fertilizer; Elementary School.
Perilaku Hambatan Panas pada Papan Partisi diperkuat Serat Tandan Kosong Kelapa Sawit Banu Nursanni; Batumahadi Siregar; Sutrisno .; Kinanti Wijaya
Rekayasa Material, Manufaktur dan Energi Vol 6, No 1: Maret 2023
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v6i1.14438

Abstract

The goal of this research was to determine the heat resistance behavior of polymer composite fiber boards with oil palm empty fruit bunches (OPEFB) fillers as influenced by mass density and water absorption, with the hope that partition boards with OPEFB fiber fillers could reduce the heat entering the room from outside vines through directly exposed walls. The partition board under discussion is a heat insulator with a thermal conductivity test impacted by the mass density of the composite. The test method used is ASTM-C-177-2013, which consists of measuring heat propagation by modifying a 40-watt heat source and testing specimens from polymer composite partition boards formed based on standards obtained from partition forming boards with a matrix of polyester resin SHCP 2667 WNC fraction weight with a fiber weight ratio of 25 wt.%, 30 wt.%, and 35 wt.% randomly arranged (chopped strand mat/CSM). The highest thermal conductivity value was observed in a 25 wt.% fiber weight ratio of 0.141 W/m.oC at a void percentage of 7.65% for a 5 minutes test time; 0.146 W/m.oC for a 10 minutes test time; 0.151 W/m.oC for 15 minutes test time at a mass density of 1.16 gr/cm. While the 35 wt.% fiber weight ratio has the lowest thermal conductivity value of 0.137 W/m.oC at a void percentage of 4.24% for a 5 minutes test time; 0.142 W/m.oC for a 10 minutes test time; and 0.147 W/m.oC for a 15 minutes test time at a mass density of 1.24 gr/cm3 and a water absorption capacity of 3.75%. According to the investigation’s findings, the higher the water absorption capacity, the higher the thermal conductivity of the partition board, and the higher the mass density, the lower the thermal conductivity. As a result, the lower the value of the thermal conductivity of the partition board, the better the insulating properties.
THERMAL CONDUCTIVITY OF PARTITION BOARD BY POLYMER COMPOSITE WITH FILLER EMPTY FRIUT BUNCHES FIBRES Batumahadi Siregar; Banu Nursanni; Sapitri Januariyansah; Sutrisno Sutrisno; Kinanti Wijaya
Jurnal Rekayasa Mesin Vol. 14 No. 2 (2023)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v14i2.1263

Abstract

Utilization and management of Empty Fruit Bunches (EFB) fibre continue to develop as the main ingredient and additional material used in various industrial products. The technological breakthrough targeted in this study is the developed EFB fibre as a filler in polymer composite partition boards which are used as heat retainers in the interior construction of buildings. The partition board is a heat insulator, and its thermal conductivity is affected by mass density and porosity. The purpose of this study was to determine the heat resistance of partition board products to reduce the heat entering the room from outside by propagating through walls exposed to direct sunlight. The test method used is adopted from ASTM C177-13, namely the measurement of heat propagation with a modification of the heat source of 40 watts. In addition, mass density tests (referring to SNI 03-2105-2006) and water absorption (referring to ASTM D5229M-12) were also carried out on the product. The specimens were based on the formation of Singapore Highpolymer Chemical Product (SHCP) 2667 WNC polyester resin matrix partition board with weight fractions of 25%, 30%, and 35% chop strand mat (CSM). The test results show that the highest thermal conductivity value is found on the board with a weight fraction of 25%, namely 0.153 W/m.°C with a mass density of 1.16 g/cm3 and a water absorption capacity of 3.38%. However, the lowest thermal conductivity value was found in the fibre with weight fraction of 35%, namely 0.147 W/m. °C at a mass density of 1.24 g/cm3 and a water absorption capacity of 3.75%.
Co-Authors Banu Nursanni Diningrat, Diky Setya Faisal Faisal Kinanti Wijaya Kustoro Budiarta Purba, Dedy Saputra Sapitri Januariyansah Sutrisno . Sutrisno Sutrisno