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Renny Eka Putri, Renny Eka
Universitas Andalas
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mechanical Engineering Nursing Public Health Veterinary Other

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Implementasi Sistem Kontrol PID pada Kotak Penyimpanan Buah Alpukat berbasis Raspberry Pi Pico W Hafizulhaq, Fadli; Harahap, Wenti; Imanuela, Claresta; Chatib, Omil Charmyn; Putri, Renny Eka
Journal of Tropical Agricultural Engineering and Biosystems - Jurnal Keteknikan Pertanian Tropis dan Biosistem Vol. 13 No. 1 (2025): April 2025
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jkptb.2015.013.01.06

Abstract

Alpukat merupakan buah klimakterik yang cepat rusak jika disimpan pada suhu ruang. Salah satu cara memperpanjang umur simpan alpukat adalah menyimpannya pada suhu dingin. Penelitian ini memiliki fokus membuat kotak penyimpanan buah dengan menggunakan pendingin termoelektrik atau elemen peltier. Kotak dibuat dengan sistem kontrol PID dengan menggunakan mikrokontroler Raspberry Pi Pico W. Hasil pengujian menunjukkan bahwa kontrol PID berhasil mempertahankan temperatur kotak pada 23 °C atau lebih rendah. Temperatur dapat dipertahankan hingga 1 jam pada kondisi kotak tanpa beban. Saat diberikan beban, temperatur kotak terendah yang dapat dicapai adalah 25.9 °C disebabkan karena beban buah alpukat memproduksi energi panas dari proses respirasi. Percobaan dengan beban juga mengonsumsi arus lebih besar dari pada percobaan tanpa beban.
RANCANG BANGUN ALAT PENCAMPUR PAKAN TERNAK TIPE VERTIKAL Putri, Renny Eka; Butar Butar, Angelia; Putri, Irriwad
JURNAL TEKNOLOGI PERTANIAN Vol. 13 No. 1 (2024)
Publisher : Prodi Teknologi Pangan Fakultas Pertanian Universitas Islam Indragiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32520/jtp.v13i1.2847

Abstract

Pencampuran pakan ternak merupakan tahap yang sangat penting dalam memenuhi kebutuhan gizi ternak. Saat ini, pencampuran pakan ternak masih umumnya dilakukan secara manual dengan menggunakan sekop dan cangkul yang dikerjakan oleh tenaga manusia. Penelitian ini bertujuan untuk merancang sebuah alat pencampur pakan ternak dan melakukan uji teknis guna meningkatkan efisiensi proses pencampuran pakan ternak. Pendekatan penelitian yang digunakan adalah pengembangan alat. Alat pencampur pakan ternak yang dikembangkan memiliki kapasitas hopper sebesar 28 kg. Hasil penelitian menunjukkan bahwa alat ini mampu mencampur pakan hingga 120 kg dalam satu jam, dengan waktu pencampuran 10 kg bahan selama 5 menit, menghasilkan campuran yang merata dan homogen, serta tanpa ditemukan gumpalan. Alat pencampur pakan ternak ini dapat mencampur dengan kecepatan rotasi rata-rata sebesar 38,7 RPM. Selain itu, kebisingan yang dihasilkan oleh alat ini rata-rata sekitar 77,37 dB, yang tetap berada di bawah batas kebisingan yang diperbolehkan. Durasi pencampuran juga memengaruhi suhu alat dan bahan yang dicampur.
Energy Analysis in the Production of Purple Sweet Potato Crackers Putri, Renny Eka; Gurning, Melia Elius Putri; Ifmalinda, Ifmalinda; Oktavionry, P.A
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 13 No. 4 (2024): December 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i4.1344-1351

Abstract

The production process of purple sweet potato (PSP) crackers involves several stages, including peeling, washing, boiling, kneading, grinding, cutting, frying, and packaging. This study aims to analyze the energy flow and production costs associated with each stage of processing sweet potatoes into crackers at the Azizah Crackers Production House in Padang City. The types of energy considered in this study included human labor, fuel gas, electricity, and raw materials (PSP, cooking oil, and supporting materials). Results showed that the total input energy for the production of PSP crackers was 784,629.95 kJ with average output energy of PSP crackers 803,880.00 kJ. The energy output of PSP crackers was 1.02 times the energy input. The cutting and frying activity required the largest input energy of 46.18% (362,310.15 kJ), while packaging activity required the smallest energy of 0.38% (2,992.33 kJ). Based on the energy type, raw materials contribute the largest energy, amounted to 85.83% (674,822.86 kJ), and the smallest type of energy was electrical energy, which was 0.74% (5,839.72 kJ). Keywords: Energy consumption. Energy flow, Production costs, Production process, PSP Crackers.
Real-Time Monitoring System for Temperature, Humidity, and pH for Composting Process Putri, Renny Eka; Maharani, Ilga Putri; Putri, Irriwad
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 2 (2025): April 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i2.380-390

Abstract

Straw is an organic material that has the potential to be used as a basic material for making compost. Rice straw rich in cellulose and lignin, requires a long composting process. The use of IoT as a compost monitoring system is needed to predict the level of compost maturity to meet standards. The aim of this study is to design a composter that is integrated with the development of a monitoring system to obtain data on temperature, humidity, and pH distribution in real time as reference to determine the maturity of straw compost. The monitoring system used based on an ESP32 which was connected to DHT22 sensors, DS18B20, soil moisture sensor V1.2, and soil pH sensor. Data collected from these sensors was transmitted and visualized through the Antares website. The temperature of the composter reached its peak on the 7th day with a value of 56.7°C. The temperature of the compost material reached its highest peak on the 7th day with a value of 42.75°C. The pH value is in the range of 5.5 – 7.4 from the beginning to the end of composting. C/N ratio of compost is 18.13 and is in accordance with SNI 19-7030-2004. Monitoring was conducted for 35 days, in accordance with the estimated compost maturity. Keywords: Humidity, pH, Sensors, Straw, Temperature.
Mini Cutting Force Sensor: A Novel Approach for Predicting Cutting Forces of Agricultural Products Putri, Irriwad; Turnando, Ardi; Lubis, Mei Mardhiani; Makky, Muhammad; Putri, Renny Eka; Santosa, Santosa
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 2 (2025): April 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i2.645-656

Abstract

Innovation in agricultural mechanization is crucial for the sustainable development of agricultural machinery in Indonesia. This study aims to design and develop a cutting force measurement device for agricultural products. The device consists of a mechanical system utilizing a linear actuator (5.88 mm/s) as a blade pusher and a control system employing a load cell as a force sensor. Testing was conducted using three blade types with cutting angles of 10°, 15°, and 20° on taro, chayote, and papaya. Measurement data were displayed as graphs on an LCD and stored as XLS files on an SD card. The tested materials had moisture content ranging from 85% to 95%. Results showed that taro required the highest cutting force (74.3 N), followed by chayote (39.77 N) and papaya (31.1 N), corresponding to their hardness and moisture content. In contrast, the highest cutting speed was observed in chayote (6.1 mm/s), followed by papaya (5.8 mm/s) and taro (3.5 mm/s) using a 20° blade. These findings confirm that harder materials with lower moisture content require greater cutting force than softer materials with higher moisture content. Keywords: Controller, Cutting force, Load cell, Mechanization, Small-scale.
EFEK SIKLUS FOTOPERIODE TERHADAP PERTUMBUHAN DAN BERAT BASAH SELADA ROMAINE (Lactuca Sativa Var. Longifolia) PADA SISTEM PFAL (PLANT FACTORY WITH ARTIFICIAL LIGHTS) Rozaaq, Naufal Ilhamdi; Putri, Renny Eka; Yanti, Delvi
Jurnal Teknologi Pertanian Andalas Vol 28 No 1 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jtpa.28.1.74-81.2024

Abstract

Plant factory with Artificial Lights (PFAL) merupakan tipe plant factory yang menggunakan LED (Light Emitting Diodes) sebagai sumber utama cahaya untuk mendukung pertumbuhan tanaman. Beberapa penelitian terdahulu umumnya hanya terfokus pada analisis pengaruh perbedaan intensitas cahaya atau lama penyinaran LED terhadap pertumbuhan dan perkembangan tanaman pada plant factory. Penelitian ini bertujuan untuk menganalisis pengaruh siklus fotoperiode terhadap pertumbuhan selada romaine yang ditanam pada sistem PFAL. Siklus fotoperiode yang diberikan pada penelitian ini perlakuan 1 (1 siklus, 14 jam terang/10 jam gelap), perlakuan 2 (2 siklus, 7 jam terang/5 jam gelap x 2) dan perlakuan 3 (4 siklus, 3,5 jam terang/2,5 jam gelap x 4). Siklus fotoperiode mempengaruhi pertumbuhan dan berat basah selada romaine, dimana perlakuan 1 dengan siklus fotoperiode yang lebih panjang memberikan hasil terbaik dengan rata-rata tinggi, panjang daun, lebar daun, jumlah daun dan berat basah masing-masing yaitu 21,46 cm, 17,69 cm, 9,72 cm, 12,73 helai dan 52,49 gram. Perlakuan 1 juga memberikan hasil rasio berat basah terhadap konsumsi energi listrik yang paling tinggi yaitu sebesar 28,05 gr/kWh sehingga perlakuan 1 lebih efisien dalam menghasilkan berat basah selada romaine per jumlah energi listrik yang digunakan dibandingkan dengan perlakuan 2 dan 3
PENGEMBANGAN ALAT PENAKAR BIJI-BIJIAN OTOMATIS UNTUK PENINGKATAN EFISIENSI PENGEMASAN Putri, Renny Eka
Jurnal Teknologi Pertanian Andalas Vol 28 No 2 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jtpa.28.2.102-113.2024

Abstract

Biji-bijian merupakan komoditi yang sangat banyak beredar dipasaran seperti jagung, kacang hijau, kacang tanah, beras, ketan. Pengemasan pada industri biji-bijian skala rumahan masih menggunakan cara manual. Penggunaan timbangan secara manual dengan kontak fisik secara langsung menyebabkan kurang terjaganya kehigienisan dari biji-bijian. Peningkatan produktivitas dalam pengemasan biji-bijian ke konsumen sangat diperlukan dengan teknologi pertanian. Hal ini tentu dapat mempengaruhi efektifitas kerja, dan kurang praktisnya saat  bekerja. Tujuan penelitian ini ialah merancang alat penimbangan berat otomatis untuk biji-bijian dengan Arduino yang dapat di kontrol jumlah keluaran berat biji-bijian dengan keyped 4x4 yang memberikan akurasi lebih tepat dari cara konvensional. Pembuatan prototipe terdiri dari hopper, pintu hopper, timbangan load cell, kotak mikrokontroler yang dibuat berdasarkan konsep desain. Bahan yang digunakan pada penelitian ini yaitu biji kacang hijau, biji jagung, biji kedelai. Kadar air biji kacang hijau 12,6% - 12,9%, jagung11,2% - 11,6%, kedelai 9,9% - 10,3%. Dari uji coba yang telah dilakukan menunjukan alat 4 kali lebih cepat dibandingkan penimbangan dengan dengan cara konvensional. Laju grain flow kacang hijau 97,05 gram/detik, jagung 58,58 gram/detik, kedelai 61,39 gram/detik. Pada penimbang berat yang lebih besar memiliki error yang lebih kecil. Alat ini didesain dengan mempertimbangkan kecepatan dan ketelitian, sehingga dapat meningkatkan efisiensi dalam pengemasan. Selain itu, kemampuan adaptabilitasnya memungkinkan penanganan berbagai jenis biji-bijian.
EDUKASI KEKURANGAN ENERGI KRONIK PADA IBU HAMIL SEBAGAI UPAYA PENURUNAN ANGKA STUNTING DI NAGARI SULIT AIR KABUPATEN SOLOK Putri, Renny Eka; Sekarini, Angela Fortuna; Putri, Rahmi Dwi; Azzahra, Alifa Azanisya; Siona, Vasya Azzahra; Saputa, Roy; Putri, Gizhella Mulyani; Hiero, Kemal Muhammad
BULETIN ILMIAH NAGARI MEMBANGUN Vol. 7 No. 2 (2024)
Publisher : LPPM (Institute for Research and Community Services) Universitas Andalas Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/bina.v7i2.545

Abstract

Stunting is still a nutritional problem in Indonesia. The main risk factor for stunting is CED (Chronic Energy Deficiency). Education about chronic energy deficiency in pregnant women has an important role in efforts to reduce stunting rates. This programme aims to evaluate the effectiveness of educational programs related to Chronic Energy Deficiency (KEK) in pregnant women as an effort to reduce stunting rates in Nagari Tulis Air, Solok Regency. The research method used is through questionnaires, observation and anthropometric measurements. Data analysis was carried out using appropriate statistical tests. The research results show that the KEK education program has the potential to increase the knowledge and behavior of pregnant women regarding nutrition, as well as reduce the incidence of KEK and stunting. These findings show the importance of the KEK education program in efforts to prevent stunting in areas with nutritional problems such as Nagari Tulis Air, Solok Regency. Recommendations are given to continue and expand the KEK education program and increase the accessibility of health and nutrition services in the area to reduce stunting rates and improve the welfare of pregnant women and children in the future. Educational activities for pregnant women are carried out using the lecture method. Before being presented with the material, the target is first given a pre-test of 10 questions to measure initial knowledge. Then, educational material is given and a post-test is carried out where the questions are the same as the pre-test which aims to see the increase in knowledge after being given education. Based on the pre and post-test results, it was found that the level of knowledge increased by 17%. A better understanding of nutrition and CED in pregnant women has an impact in shaping the views and behavior of pregnant women as an effective strategy in reducing cases of births of children with stunting conditions.
The Role of Fan Speed and Misting for Computational Fluid Dynamics (CFD) Analysis of Temperature and Humidity Regulation in Greenhouses Putri, Renny Eka; Salwa, Mutiara; Hasan, Ashadi; Putri, Irriwad
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 6 (2025): December 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i6.2026-2038

Abstract

Maintaining an optimal climate is essential for plant growth, and greenhouses though controlled often face challenges such as excessive heat. To address this, fan and misting systems are commonly used. This study investigates the role of fan speed and misting in regulating temperature and relative humidity (RH) in a smart greenhouse using Computational Fluid Dynamics (CFD) simulations. In this research, CFD simulations were performed using actual temperature and RH measurements as input data. The scenarios included varying fan speeds (3.4 m/s, 4.5 m/s) and a control condition without a fan, combined with 15-minute misting sessions. The results show that a fan speed of 4.5 m/s with misting is more effective at lowering temperature compared to 3.4 m/s under the same misting conditions. The simulation errors were below 10% across all treatments, indicating the model’s reliability. These findings offer valuable insights for optimizing climate control in greenhouses, supporting more efficient and sustainable crop production.
Analisis Distribusi Suhu dan Aliran Udara pada Proses Pengeringan Wortel Menggunakan Tray Dryer Berbasis Simulasi CFD Renny, Renny; Muhammad Iqbal, Muhammad Iqbal; Eka Putri, Renny; Putri, Annisa Octaviani; Abdi Lubis, Muhammad Iqbal
Jurnal Keteknikan Pertanian Vol. 13 No. 4 (2025): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.013.4.529-545

Abstract

Wortel (Daucus carota L.) merupakan sayuran bernutrisi tinggi yang mudah rusak akibat kandungan airnya yang tinggi. Pengeringan merupakan metode yang efektif untuk memperpanjang masa simpan wortel, salah satunya dengan menggunakan alat pengering tipe rak (tray dryer). Namun, efisiensi proses pengeringan sangat dipengaruhi oleh keseragaman distribusi suhu dan aliran udara di dalam ruang pengering. Penelitian ini bertujuan untuk mengevaluasi distribusi suhu dan aliran udara pada tray dryer menggunakan pendekatan Computational Fluid Dynamics (CFD) selama proses pengeringan wortel. Simulasi dilakukan pada tiga variasi suhu (50°C, 60°C, dan 70°C) dan dua kecepatan aliran udara (2 m/s dan 3 m/s) dengan bantuan perangkat lunak SolidWorks, ANSYS Fluent, dan Origin. Hasil simulasi menunjukkan bahwa distribusi suhu dan aliran udara tidak merata, terutama pada bagian tengah dan atas alat pengering. Ketidakteraturan ini dapat menyebabkan pengeringan yang tidak seragam dan menurunkan kualitas produk akhir. Validasi dengan data pengukuran menunjukkan bahwa model simulasi memiliki tingkat kesalahan kurang dari 4%, sehingga dapat dianggap cukup akurat untuk digunakan dalam perancangan dan optimasi sistem pengeringan yang lebih efisien.
Co-Authors - Andasuryani Abdi Lubis, Muhammad Iqbal Abdullah Habib Ade Sandri Afifah Khainur Agus Hermansyah Alhapen Ruslin Chandra Ali Anwar Delimunthe Alifa Azanisya Azzahra Andri Syaputra Angela Fortuna Sekarini Aninda T. Puari Annisa Lestari Simanjuntak Ashadi Hasan Azkiya Wahyu Novianda Azrifirwan, Azrifirwan Azzahra, Alifa Azanisya Baehaqi Butar Butar, Angelia Celsy Lovena Cherie Dinah, Cherie Dellia Asdinisa A.S Dhiya Ulwafi Elfy Adelliana Elroza Wulandari Fachri Ibrahim Nasution Fadhli Anas Fadli Hafizulhaq Fadli Irsyad Feri Arlius Fitri Hidayah Nasution Genni Deea Solehia Gizhella Mulyani Putri Gurning, Melia Elius Putri Halimatus Syahdia Hasibuan Hammam Mananda Harahap Harahap, Hammam Mananda Harahap, Wenti Hiero, Kemal Muhammad Ifmalinda Ilga Putri Maharani Imanuela, Claresta Intan Pratiwi Irriwat Putri J P Geraldo Joko Prastio Kemal Muhammad Hiero Khandra Fahmy Lisa Silvia Ningsih Liza Mardalena Lubis, Mei Mardhiani Madani Putra Maharani, Ilga Putri Maulana, Dwipa Islam Melia Elius Putri Gurning Mislaini Mislaini Mislaini Rahman Mohammad Agita Tjandra Muahammad Zacky Muhammad Iqbal Abdi Lubis Muhammad Iqbal, Muhammad Iqbal Muhammad Makky Muhammad Mizwardi Nadian Nadian Najeli Rahmatika Naufal Ilhamdi Rozaaq Nindi Elisa Oktavionry, P.A Omil Charmyn Chatib P.A Oktavionry Putri, Annisa Octaviani Putri, Gizhella Mulyani Putri, Irriwad Putri, Rahmi Dwi Rahmi Dwi Putri Rapon Anam Rauzatul Mirizal Jannah Renny Renny Rise Prana Sari Rizka Fadhilah Rizka Fadhilah Roni Andika Putra Roy Saputa ROY SAPUTRA Rozaaq, Naufal Ilhamdi Ryan Anugerah Perdana Salwa, Mutiara Santosa - Santosa Santosa Santosa Santosa Santosa Santosa Santosa Santosa Santosa Santosa Saputa, Roy Satria Adi Surya Sekarini, Angela Fortuna Shakira Azzura Syaidev Sherly Rahmadenita Siona, Vasya Azzahra Syahrizal Lubis Turnando, Ardi Vasya Azzahra Siona Widi Darmadi Widya Annisa Winda Fauzia Wiranda Erza Pratama Wirna Nepis Yanti, Delvi Yuharfiandri Yuharfiandri