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Contact Name
Retno Eka Pramitasari
Contact Email
reaktom.unhasy@gmail.com
Phone
+6282233842524
Journal Mail Official
reaktom.unhasy@gmail.com
Editorial Address
Fakultas Teknik Universitas Hasyim Asy'ari Tebuireng Jombang Jl. Irian Jaya No. 55, Teburing, JOMBANG, Jawa Timur Tel / fax : (0321) 861 719 ; 0856 5564 2941 / (0321) 874 684
Location
Kab. jombang,
Jawa timur
INDONESIA
Reaktom : Rekayasa Keteknikan dan Optimasi
ISSN : -     EISSN : 25484095     DOI : https://doi.org/10.33752/reaktom
Core Subject : Engineering,
Reaktom : Rekayasa Keteknikan dan Optimasi is open access and peer-reviewed journal, published by Universitas Hasyim Asy ari, Indonesia to disseminate research results from scientists and practitioners in Engineering and Science fields. Aim and Scope: Electrical Engineering: robotics, control system, microcontroller application, telecommunication, electronics, power electronics, power engineering, power distribution, etc. Mechanical Engineering: material engineering, production, automotive, energy conversion, aerodynamic, etc. Industrial Engineering: chemical engineering, physic engineering, instrumentation and control, industrial management, manufacture, etc. Civil Engineering: structure engineering, hydrology, geotechnical, construction management, etc. (but not limited to)
Articles 83 Documents
Analisis Pengaruh Arah Posisi Panel Surya Terhadap Output Daya Pada Sistem Penerangan Rumah Mohammad Ashrulloh, Mohammad Munib Rosadi, Mochammad Arif Irfa'i
Reaktom: Rekayasa Keteknikan dan Optimasi Vol 6 No 2 (2021): Desember 2021
Publisher : Fakultas Teknik Universitas Hasyim Asy'ari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33752/reaktom.v6i2.2176

Abstract

The solar Panel is an array of solar cells that can convert light energy of the sun into electricity. The intensity of the light and the power output is strongly influenced by the mounting direction of the position of the solar panel. This research has a purpose to analyze the results of the influence of the direction of the position on the power output and efficiency of solar panel module. The research method used is experimental type quantitative research methods. This method is used to determine the effect of independent variables i.e. the direction of the position on the dependent variable i.e. the power output and the efficiency of the solar panel in a state that is controlled. The results of the data obtained from measurements using the instrument of data collection and the calculation formula. This study obtained different average power output results, for the west 46.72 Watt, the north of 50,30 Watt, the east of 36,17 Watt, and the south 35,78 Watt.
Pengaruh Derajat Putaran Kontrol Gas Terhadap Hasil Kadar Air Kunyit Pada Alat Pengering Tipe Rak Oky Adithya Indrawan, Retno Eka Pramitasari
Reaktom: Rekayasa Keteknikan dan Optimasi Vol 6 No 2 (2021): Desember 2021
Publisher : Fakultas Teknik Universitas Hasyim Asy'ari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33752/reaktom.v6i2.2177

Abstract

Turmeric is one of the most commonly encountered rhizome plants that are used for cooking because it is a natural coloring of a food. Turmeric has a water content of about 80% to 82,5%. Drying is the process of heat transfer that is done to remove the water content in an object with a medium in the form of hot air. Currently there are 2 commonly used drying methods, namely drying in a natural way that uses solar heat as its heat media and artificial drying that uses other aids as heat media. This study used this type of experimental research with variations in the degree of gas control rotation of 90°, 135°, 180° on rack-type dryers. The purpose of this study is to find out whether or not the effect of the degree of gas control spin on the water content of turmeric evaporated. The results of the study will be conducted multiple regression analysis by conducting a T test on the SPSS 26 application. Results obtained from the T test stated a significance value of 0,015 < 0,05 and a calculated T value of 3,378 > 2,447. Conclusions obtained from the results of the T test stated the effect of the degree of gas control round on the evaporated turmeric water content.
Analisa Hasil Penyusutan Kadar Air Temulawak Ditinjau Dari Waktu Pengeringan Mochamad Chanifuddin Najib, Retno Eka Pramitasari
Reaktom: Rekayasa Keteknikan dan Optimasi Vol 6 No 2 (2021): Desember 2021
Publisher : Fakultas Teknik Universitas Hasyim Asy'ari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33752/reaktom.v6i2.2179

Abstract

Temulawak is a plant that is included in the category of plants that are very good for health. In its management, the community still uses natural methods such as solar heat, even though this method is less effective because the weather in Indonesia is uncertain. Therefore, there must be a new solution, one of which is to use oven drying. Oven drying is one method of drying using a temperature variation of 60°C with a time variation of 120 minutes. From the results of this study, the shrinkage value of the initial weight of the material was 400grams after the drying process was carried out, the final weight was 239.6 grams or the shrinkage was 40%. From this it can be concluded that the temperature and drying time are very influential for reducing the water content of temulawak.