D. H. Praswanto
Institut Teknologi Nasional Malang

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Penerangan Buatan Menggunakan Panel Surya Untuk Budidaya Bunga Krisan di Desa Blarang Kecamatan Tutur Nongkojajar Kabupaten Pasuruan Taufik Hidayat; D. H. Praswanto; Rachmadi Setiawan; Bima Romadhon Parada Dian P
JASTEN (Jurnal Aplikasi Sains Teknologi Nasional) Vol. 2 No. 1 (2021)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Institut Teknologi Nasional Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (679.343 KB) | DOI: 10.36040/jasten.v2i1.3443

Abstract

Chrysanthemum is one of the most important flowers and has the highest consumption in the world. Apart from being used as ornamental flowers and cut flowers, several types of chrysanthemum are used as herbal plants, with their anti-microbial and anti-fungal properties, chrysanthemum plants are developed as a cure for tumors and cancer. One of the locations of chrysanthemum farming in East Java is Tutur District, Pasuruan Regency. Located at an altitude of 400 - 1,600 meters above sea level (masl), chrysanthemum cultivation in Tutur District is carried out by farmers who are members of the Agro Mitra Cooperative. In this community service program, several new problems were found from farmers who have used PLTS technology in greenhouses. The connection of an inductive load in the form of a water pump in a solar panel installation that uses a modified sine wave inverter causes the water pump and inverter to burn due to bad harmonic effects, so that the inverter will be replaced from the modified sine wave type to a pure sine wave inverter. The results of the activities that have been carried out are the assembly and installation of a pure sine wave inverter on a 1,400 Watt PLTS which is used to supply electricity to lighting for chrysanthemum plants and the irrigation process at Partners. Check the feasibility of greenhouse electrical installations. In addition, counseling and training on how to care for solar panels was also carried out. It is hoped that with this community service activity (abdimas), the provision of electricity from solar energy can help farmers improve the process of cultivating chrysanthemums because electrical energy will continue to be available. The application of pure sine wave inverters works better in handling various types of greenhouse loads, especially inductive loads. Besides that, with the pure sine wave inverter system, farmers do not need to worry if the PLTS system must be used to turn on the water pump for irrigation purposes.
PERBAIKAN MESIN PENGERING DAUN AFRIKA DI SMKN 1 WONOSARI KABUPATEN MALANG MENGGUNAKAN METODE REVERSE ENGINEERING D. H. Praswanto; Siswi Astuti; Endah Kusuma Rastini; Fourry Handoko
JASTEN (Jurnal Aplikasi Sains Teknologi Nasional) Vol. 2 No. 1 (2021)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Institut Teknologi Nasional Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (938.99 KB) | DOI: 10.36040/jasten.v2i1.3572

Abstract

Sumberdem Village in Wonosari Subdistrict, Malang Regency, has agricultural products in the form of medicinal plants, one example is African leaves. This plant is used as a tea product for consumption by diabetics. SMKN 1 Wonosari is a partner that produces African leaf tea. To make African leaf tea products, use a dryer. The drying machine owned by SMKN 1 Wonosari was not optimal due to several problems when we used it. There were 3 problems when the team used the partner's dryer, namely the location of the heating element was not optimal so that the drying of the African leaves was not evenly distributed, the sharp edges of the racks could cause work accidents and the wheels on the drying mat were not strong enough to withstand the load. The solution to the problem used is repairing the dryer. There are 3 methods in community service activities carried out to achieve the outcome, namely the approach method, the reverse engineering method and on the job training. The result of this activity is an African leaf drying machine using a heating element on each shelf. This drying machine with 1450 watts of power has the advantage that the results of drying African leaves can be evenly distributed, drying time is faster and safer to use. The use of this drying machine partners can save production costs of Rp. 7,403 for every 4kg of wet African leaves.