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All Journal SITEKIN: Jurnal Sains, Teknologi dan Industri JST ( Jurnal Sains Terapan ) Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) International Journal of Applied Sciences and Smart Technologies Aksiologi : Jurnal Pendidikan dan Ilmu Sosial Journal of Community Development Makara Journal of Technology Jurnal Pengabdian dan Pemberdayaan Banyuwangi International Journal of Technology, Food and Agriculture JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah)
Rachmanita, Risse Entikaria
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Manufacturing Non Adhesive Biobriquettes With Main Ingredients From Cow Manure Waste at Dairy Cows Teaching Factory Rachmanita, Risse Entikaria; Aminullah, Muhammad; Susmiati, Yuana; Febriani, Siti Diah Ayu; Rudiyanto, Bayu
International Journal of Technology, Food and Agriculture Vol. 1 No. 1 (2024): February
Publisher : P3M Politeknik Negeri Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25047/tefa.v1i1.4511

Abstract

Biobriquettes are solid energy source that comes from biomass that is compressed under a certain pressure. The development of non-adhesive biobriquettes has not been widely carried out. Teaching factory (TEFA) Dairy Cows Politeknik Negeri Jember have 51 cows and products ± 18-20 kg/day of cow manure which have not managed optimally. On the other side of district Jember produces 1,945 tons of coconut shell waste per year which is pill up, thrown away and used as stove fiel or simply burned. This research was conducted with an experimental method using composition variations of raws material and mixed material to obtain the best mixture ratio for biobriquettes, 4KS6AR (40% : 60%), 5KS5AR (50% : 50%), 6KS4AR (60% : 40%). The raw material for cow dung is cleaned from grass fibers. The coconut shells raw material that has been dried in the sun, then pyrolyzed at a temperature of approximately 200-250ºC for 6-7 hours, then ground to size of 40, 60 and 100 mesh. From the tests that have been carried out, the most optimal value to quality standards of National Standard of Indonesia (SNI) 01-6235-2000 is with a water content of 2,382 %, calorific value of 6.650 cal/g.
Performance of a Solar Seawater Distillation with a Triangle Prism Cover and a Fin-Type Absorber Rachmanita, Risse Entikaria; Umam, Miftah Khoirul
Makara Journal of Technology Vol. 27, No. 1
Publisher : UI Scholars Hub

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Abstract

Solar-powered distillation is a seawater distillation method that utilizes solar heat as its main energy source for the purpose producing freshwater and a by-product of the distillation process in the form of salt. This study aims to determine the performance of a solar seawater distillation design with a semi-batch system by combining a fin-type absorber plate and a triangular prism cover. This design is equipped with a reflector and absorber plate, which has a surface area of 0.3969 m2 with a volume capacity of seawater that can be accommodated in a basin of ±24 liters. It uses a knockdown system on its components for convenience in the process of maintenance and repair. The test results show that the highest freshwater product produced is 0.245 liters and the quality of distilled water meets the standards for consumption. The highest efficiency of solar seawater distillation test results was 8.032% on the third day of testing with an average solar radiation intensity of 805.076 W/m2 . The efficiency of solar distillation of seawater is strongly influenced by the intensity of solar radiation received by the distillation apparatus.
Co-Authors Adhiyatma, M. Aditama, Riofaldi Putra Ahmadi, Haerul Anwaludin, Aan Ayu Safitri Bayu Rudiyanto Beni Widiawan, Beni Budi Hariono Denny Trias Utomo, Denny Trias Duri, Rijal Daivu Dwi Putro Sarwo Setyohadi, Dwi Putro Sarwo Febrian, Dimas Dwi Febriani, Siti Diah Ayu Firgianto, Refa Hariadi Subagja Hasbiyati, Haning Hendra Yufit Riskiawan Hertawamati, Rosa Tri Irani, Cahya Kautsar, Syamsiar Khoiri, Ahmad Hipnie Lestari, Lila Ratna Indah Lia Chairina, Raden Roro Muhammad Aminullah, Muhammad Mukaromah, Silfiatul Mulyono, Novangga Adi Nurazaq, Warit Abi Purnomo, Fendik Eko Putra, Danag Eka Ramadhan, Fila Sarena, Sryang Tera Surateno, Surateno Suseno, Nadia Hidayanti Sya'Bana, Ahmad Archam Umam, Miftah Khoirul Yuana Susmiati Zaghasy, Daffa Athala