Article Per Year (5 Year)
p-Index From 2020 - 2025
0.408
P-Index
This Author published in this journals
All Journal Hydrogen: Jurnal Kependidikan Kimia Jurnal Teknologi
Ulfa Mutia, Ulfa
Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman
Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Electrical & Electronics Engineering Mechanical Engineering

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Exploring Integrated Instrument Complement at Practical Approach at MAN 4 Tanah Datar Mutia, Ulfa; Mawarnis, Elvy Rahmi
Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 2 (2024): April-May 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i2.10992

Abstract

The purpose of this research is to produce Integrated Instrument Components. Exploring integrated instrument complement at practical approach at MAN 4 Tanah Datar which is valid and practical. This study uses the Research and Development research method with the 4-D development model (define, design, develop, and disseminate). But the stages in research with this 4-D model are only carried out from the first to the third stage, namely the define stage to get conditions in the field. design stage to prepare a simple practicum kit on Thermochemistry material, and the develop stage to get the results of the initial practicum IIC that has been designed followed by validity and practicality tests. The research instruments used were validation sheets and response questionnaire sheets. The validation sheet was filled in by 2 lecturers and 1 chemistry educator. The response questionnaire sheet was filled by 17 of in 11th grade students of MAN 4 Tanah Datar. The results showed that: 1) Simple Practical IIC on Thermochemical Material has met the valid criteria with 92% validation results, 2) Simple Practical IIC on Thermochemical Material has met the practical criteria with the results of the student response questionnaire.
Perancangan dan Aplikasi Distilasi Minyak Serai Wangi Menggunakan Photovoltaic dengan System Tenaga Hybrid Mutia, Ulfa; Rihayat, Teuku; Syafruddin, Syafruddin
Jurnal Teknologi Vol 24, No 2 (2024): Oktober 2024
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/teknologi.v24i2.5639

Abstract

UUtilization of sunlight is currently very effective as a renewable energy. Photovoltaic systems are modules that are used to absorb heat exposed to sunlight which is converted into electrical energy. The amount of potential sunlight that can be absorbed depends on the size of the cell and the absorption capacity of solar cells against sunlight. This study uses 4 solar panels to produce heat which is used for the essential oil production process. The total power that can be generated within 6 hours is 8664 kJ. Based on the test results of the distillation tool design using solar cells, energy absorption efficiency is not 100% absorbed due to lost energy and the number of solar panels used has not reached the power requirement, but to overcome this, during the study a hybrid power system was also used, where power is also supplied from the mains National Electric Company (PLN). Test results on citronella oil (Chimbopogan Nardus L) are close to SNI standards. The optimum drying time to produce the highest % yield is 1 day of drying time with 6 hours of distillation time. The results of citronella produced met Indonesian quality standards, where the density test value was 0.8869, and Gas Chromatography-Mass Spectrometry (GC-MS), namely citronella content of 15.75% at a retention time of 15.875 minutes. Geraniol content in essential oil was obtained at 28.70% retention time of 18.050 minutes which are within the range of the Indonesian National Standard (SNI) 2385-2006.
Co-Authors Chairul Saleh Daniel -, Daniel Mawarnis, Elvy Rahmi Syafruddin Syafruddin Teuku Rihayat