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Journal : Jurnal Agrotek UMMat

RANCANG BANGUN PENGENDALI IKLIM MIKRO PADA RUMAH TANAMAN BERBASIS MIKROKONTROLER Diah Ajeng Setiawati; Joko Sumarsono; Asih Priyati; Guyup Mahardhian Dwi Putra; Muhammad Nasarudin
Jurnal Agrotek Ummat Vol 8, No 1 (2021): April 2021
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jau.v8i1.4032

Abstract

Control of temperature and humidity of air in plant houses which is microclimate control is necessary to do for optimal plant growth.  The purpose of this research is to design and test the performance of microclimate control and monitoring systems in plant houses. Research tools and materials include plant houses, Arduino microcontrollers, DHT22 sensors, RTC DS3231, TFT LCD 128×64 12864, DC Pumps, 0.2 mm nozzles, relays, SD card modules, and exhaust fans. The method used is an experimental method of using a water misting system to control the temperature and humidity of the air. From the results obtained, the microclimate control design can work automatically assisted by DHT22 sensors. When the air temperature reaches > 29°C, the active air wasting fan releases hot air. Whereas when air humidity drops to <80%, active air humidifiers increase air humidity.
WATER BALANCE ANALYSIS IN PIJENAN BANTUL IRRIGATION AREA Guyup Mahardhian Dwi Putra; Diah Ajeng Setiawati; Sumarjan Sumarjan
Jurnal Agrotek Ummat Vol 5, No 1 (2018): February
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (173.618 KB) | DOI: 10.31764/agrotek.v5i1.238

Abstract

Untuk melihat ketersediaan air irigasi di suatu daerah digunakan analisa neraca air. Neraca air adalah gambaran potensi penyediaan air dan potensi kebutuhan air. Tujuan dari penelitian ini adalah menghitung debit masukan dan keluaran dari air irigasi Pijenan Bantul yang akan disesuaikan dengan pola tata tanam di daerah tersebut. Metodologi dalam penelitian ini adalah eksperimental dengan pengambilan data di daerah irigasi Pijenan Bantul. Alat dan bahan yang digunakan adalah current meter, pita ukur, blangko kebutuhan air irigasi. Hasil penelitian menunjukkan debit selama 10 tahun (2003-2013) sebesar 683,730 hingga 10.237,338 l/dt dan debit kebutuhan rata-rata 1823 l/dt. Hubungan antara debit ketersediaan dan debit kebutuhan di pintu tersier dapat ditunjukkan dari analisis neraca air dimana pada daerah hulu kebutuhan irigasi selalu lebih kecil dari debit yang tersedia, di daerah tengah debit kebutuhan seimbang dengan debit ketersediaan, sedangkan di daerah hilir debit kebutuhan lebih besar daripada debit ketersediaan. Hasil perhitungan faktor K didapatkan lebih kecil dari 0,7 yang artinya terjadi defisit air sehingga perlu system irigasi giliran.To see the availability of irrigation water in an area water balance analysisis used. Water balance is a description of potential water supply and potential water requirement. The purpose of this research was to calculate the input and output irrigation waterdischarge from PijenanBantul that will be adjusted with the pattern of planting system in the area.The methodology in this research was experimental with data retrieval in PijenanBantul irrigation area. Tools and materials used were current meters, measuring tape, form of irrigationwater requirement. The results showed that thedischarge for 10 years (2003-2013) was 683.730 to 10,237.338 l/dt and the average requirement was 1823 l/dt. The relationship between the availability and the requireddischarge of the tertiary gate could be shown from the water balance analysis where upstream irrigation water requirements were always smaller than the available discharge; in the middle area the required discharge was equal with the available discharge; whereas in the downstream area, the requireddischarge was greater than the available discharge. The calculation result of K factor was smaller than 0,7 which means water deficit was existed, therefore the rotation irrigation system was necessary.
ANALISIS KINERJA ALAT DESALINASI AIR LAUT PENGHASIL AIR TAWAR DAN GARAM DENGAN MENGGUNAKAN TENAGA SURYA Sopiyan Iqbal; Sukmawaty Sukmawaty; Guyup Mahardhian Dwi Putra; Diah Ajeng Setiawati
Jurnal Agrotek Ummat Vol 6, No 1 (2019): February
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (278.276 KB) | DOI: 10.31764/agrotek.v6i1.988

Abstract

Penelitian ini bertujuan mengetahui kinerja alat desalinasienergi surya. Metode yang digunakan adalah metode eksperimental dengan mendestilasikan air laut sebanyak 5 liter selama 5 hari. Pengambilan data dilakukan setiap hari selama 10 jam (08.00-17.00 WITA). Parameter yang diamati adalah intensitas matahari (IT, W/m2), temperatur air laut (Tal, °C), temperatur air tawar (Tat, °C), temperatur plat penyerap (Tc, °C), temperatur penguapan (Tsv, °C), temperatur lingkungan (Ta, °C), produktivitas air tawar (liter), serta garam yang terbentuk (liter). Hasil pengamatan menunjukkan bahwa intensitas matahari sangat berpengaruh terhadap produktivitas destilat yang dihasilkan. Volume destilat terbesar dihasilkan pada hari kedua dengan efisiensi energi mencapai 97,52%.
Analisis Pengaruh Rasio Jerami Dan Kotoran Sapi Pada Biodigester Terapung Pada Gas Yang Dihasilkan Attamimy, Haikal; Putra, Guyup Mahardhian Dwi; Sukmawaty, Sukmawaty
Jurnal Agrotek Ummat Vol 11, No 2 (2024): Jurnal Agrotek Ummat
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jau.v11i2.22262

Abstract

To address the concerning trend of increasing fossil fuel use due to population growth, it is necessaryto prioritize alternative energy sources like renewable energy.This study aims to analyze the energy parameters produced through biogas formation in a floating drum biodigester, highlighting the potential for sustainable energy solutions.This research method uses experimental research using three treatments of the ratio of straw, water, and cow dung. The parameters observed and analyzed include the amount of biogas produced, biogas pressure, flame length, combustion rate, and calorific value.The experiment results clearly demonstrate that the first treatment was significantly more effective in producing biogas, with a volume of 0.101 m3 or 101 litre, a pressure of 0.0081 atm, a combustion rate of 0.00266 m3/min, a flame length of 38 minutes, and a combustion calorific value of 210,045 joules.In contrast, the second treatment produced a total biogas volume of only 0.0775 m3 or 77.5 litre, at a pressure of 0.0131 atm, a combustion rate of 0.00209 m3/min, a flame duration of 37 minutes, and a combustion calorific value of 184,965 joules. These results provide strong evidence for the superiority of the first treatment in terms of biogas production. The third treatment produced a biogas volume of 0.0771 m3 or 77.1 litre at a pressure of 0.013 atm, with a combustion rate of 0.00214 m3/min, a flame duration of 36 minutes, and a combustion heating value of 164,587.5 joules.