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Putri, Irriwad
Program Studi Teknik Pertanian Dan Biosistem, Fakultas Teknologi Pertanian, Universitas Andalas
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Dentistry Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Mechanical Engineering Public Health Veterinary Other

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Mini Cutting Force Sensor: A Novel Approach for Predicting Cutting Forces of Agricultural Products Putri, Irriwad; Putri, Renny Eka; Makky, Muhammad; 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.
Real-Time Monitoring System for Temperature, Humidity, and pH for Composting Process Renny Eka Putri; Ilga Putri Maharani; Irriwad Putri
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.
Analisis Tekno-Ekonomi Mesin Pencacah Hijauan (Chopper) Tipe Vertikal di Kelompok Tani Harapan Sejahtera Aie Pacah dengan Perlakuan Ragam Bahan Uji Santosa, Santosa; Putri, Irriwad; Fauzi, Fahmi Fitrio
GreenTech Vol. 1 No. 1 (2024)
Publisher : Departmen Of Agro-industrial Technology, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/greentech.v1i1.1

Abstract

Telah dilakukan penelitian mengenai analisis tekno-ekonomi mesin pencacah hijauan (chopper) tipe vertikal di kelompok tani harapan sejahtera aie pacah dengan perlakuan ragam bahan uji. Penelitian ini bertujuan untuk melakukan analisis teknis dan analisis ekonomi mesin pencacah (chopper) tipe vertikal dengan perlakuan ragam bahan uji yaitu rumput gajah, rumput raja, dan tebon jagung. Pengamatan analisis teknis yang dilakukan adalah kapasitas kerja mesin, perubahan frekuensi putaran poros motor penggerak dan poros pencacah, konsumsi bahan bakar, daya mesin, torsi motor, tingkat kebisingan mesin, kecepatan angin keluaran, dan hasil cacahan terbaik mesin. Pengamatan analisis ekonomi yang dilakukan adalah biaya pokok dan titik impas mesin. Pengamatan mesin pencacah menggunakan 3 ragam bahan uji, didapatkan hasil bahwa ragam bahan uji berbeda nyata terhadap kapasitas kerja, frekuensi putaran, debit bahan bakar, daya motor, torsi motor, tingkat kebisingan, dan titik impas mesin. Didapatkan nilai kapasitas kerja mesin menggunakan bahan rumput gajah, rumput raja, dan tebon jagung secara berurutan yaitu 1302 kg/jam dengan rendemen 86,9 %; 1380,8 kg/jam dengan rendemen 92,1 %; dan 1412 kg/jam dengan rendemen 94,1 %. Nilai biaya pokok mesin untuk rumput gajah, rumput raja, dan tebon jagung secara berurutan adalah Rp 45,05/kg; Rp 43,3/kg; dan Rp 42,58/kg.
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.
Enhancing Mini Greenhouse Design: A CFD Analysis of Temperature, Humidity, and Wind Flow Distribution Putri, Irriwad; Aldi, Rahmah Tasya; Hasan, Ashadi
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 13 No. 2 (2024): June 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i2.381-393

Abstract

Research has been carried out on simulating the distribution of temperature, humidity and wind direction in a mini greenhouse using CFD ansys with several fan speed variations. This study aims to simulate the microclimate in a mini greenhouse, namely in the form of temperature, humidity and wind direction with variations in fan speed, namely with speeds of 1.7 m/s, 2.0 m/s and 2.2 m/s. Field measurement data regarding temperature, humidity (RH) in the tunnel-type mini greenhouse that has been carried out is used as input or input to the boundary conditions in the CFD mini greenhouse simulation. The results of the mini greenhouse CFD simulation using Ansys FLUENT are shown in the form of contour images of each condition. Temperature distribution contour, the humidity distribution contour (RH) and the airflow velocity distribution contour indicated by the vector will be used as the focus of this research. The numerical simulation shows quite good results when compared with the results of measurements in the field with the maximum error value obtained, which is 4.04%. Keywords: Computational Fluid Dynamics, Humidity, Simulation, Temperature, Wind direction.
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.
RANCANG BANGUN SEPARATOR HASIL AKHIR PENYULINGAN SERAI WANGI MENGGUNAKAN SENSOR ULTRASONIC (HC-SR04) Azrifirwan, Azrifirwan; putri, irriwad
Jurnal Teknologi Pertanian Andalas Vol 27 No 2 (2023)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jtpa.27.2.161-172.2023

Abstract

Minyak serai wangi, hasil penyulingan dari daun serai wangi, memiliki nilai ekonomis tinggi. Proses penyulingan dilakukan menggunakan alat suling yang terdiri dari beberapa komponen utama seperti boiler, destilator, kondensor, dan separator. Setiap komponen memiliki peran penting dalam menghasilkan minyak serai wangi yang baik, mempengaruhi jumlah dan kualitas minyak yang dihasilkan serta waktu produksi. Dalam setiap komponen, separator jarang mendapatkan inovasi, baik dari segi desain maupun teknologi. Oleh karena itu, penelitian tentang "Rancang Bangun Separator Penyulingan Serai Wangi Menggunakan Sensor Ultrasonic (HC-SR04)" menjadi relevan. Penelitian dilakukan dengan membandingkan kinerja separator yang dibuat dengan separator yang sudah ada. Pengamatan dilakukan terhadap lamanya waktu penyulingan, kapasitas penyulingan, rendemen penyulingan, waktu pemisahan, kapasitas pemisahan, persentase minyak yang dapat dipisahkan, persentase minyak yang tidak dapat dipisahkan, besar energi listrik yang digunakan, perhitungan debit pompa, serta analisis secara ekonomi. Separator yang dibuat berhasil meningkatkan kecepatan pemisahan dibandingkan dengan separator manual dan dapat memisahkan minyak sereh wangi secara otomatis rata-rata sebesar 68,5%. Kata kunci: Minyak Serai Wangi, Penyulingan, Separator, Sensor Ultrasonic HC-SR04, 
PENGEMBANGAN ALAT PENGIRIS REBUNG (Dendrocalamus asper) SKALA RUMAH TANGGA Putri, Irriwad; santosa, santosa
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.28.1.62-73.2024

Abstract

Bambu merupakan salah satu jenis tumbuhan herba yang memiliki banyak manfaat bagi masyarakat, di dalam family gramineae bambu termasuk tumbuhan yang pertumbuhannya sangat cepat dan tinggi, memiliki batang berbentuk menonjol yang dilihat dari permukaan dalam diameter penuh pada masa pertumbuhan selama sekitar tiga sampai empat bulan rendah. Penelitian ini bertujuan untuk melakukan rancang bangun alat pengiris rebung, melakukan pengujian terhadap alat dan melakukan analisis ekonomi. Setelah dilakukan pengujian diperoleh kapasitas kerja alat yaitu sebesar 43,28 kg/jam. Berdasarkan beberapa kali percobaan terlihat beberapa variasi kapasitas kerja yang diperoleh. Hal ini dipengaruhi oleh ukuran rebung khususnya ukuran antar ruas rebung. Perolehan kapasistas yang tinggi bergantung pada ukuran bagian ruas pada rebung yang kecil, dan ukuran batang rebung yang sesuai dengan ukuran tuas pendorong, sehingga waktu pengerjaannya cepat dan pengujiannya mudah dilakukan oleh operator. Sedangkan kapasitas kerja yang rendah disebabkan oleh kadar air yang tinggi, sehingga rebung yang diiris mudah rusak dan mengakibatkan proses pengerjaannya lama. Rebung yang digunakan pada penelitian memiliki kadar air sebesar 92,7 %. Hasil ketebalan dari irisan rebung adalah sebesar 2,69 cm. Nilai ini telah memenuhi standar ukuran pasar dimana ukuran ketebalannya tidak melebihi ukuran 3 cm. Berdasarkan analisis ekonomi yang dilakukan diperoleh biaya pokok untuk alat ini sebesar Rp 374,462/kg dengan titik impas sebesar 13.339, 5 kg/tahun.Kata kunci: rebung, alat pengiris rebung, analisa ekonomi alat
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.
Co-Authors Ade Sandri Aldi, Rahmah Tasya Ashadi Hasan Azrifirwan, Azrifirwan Butar Butar, Angelia Desrial Fauzi, Fahmi Fitrio Hammam Mananda Harahap Harahap, Hammam Mananda Ilga Putri Maharani Lubis, Mei Mardhiani Maharani, Ilga Putri Mohammad Agita Tjandra Muhammad Makky Muhammad Mizwardi Putri Zainal Rahmah Tasya Aldi Renny Eka Putri, Renny Eka Salwa, Mutiara Santosa Santosa Santosa Santosa Turnando, Ardi Usman Ahmad