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Journal : Ulil Albab

Perencanaan Sistem Proteksi Petir Pada Kawasan Candi Borobudur Ragil Triyanto; Sapto Nisworo; Hery Teguh Setiawan
ULIL ALBAB : Jurnal Ilmiah Multidisiplin Vol. 1 No. 9: Agustus
Publisher : CV. Ulil Albab Corp

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

BMKG data for 2020-2021 shows that Magelang Regency has an average of 540,000-720,000 lightning strikes per year. The installation of a lightning protection system aims to avoid, prevent and reduce the danger posed by lightning strikes. The Borobudur Temple area zone 1 and zone 2 is the center of a world tourist destination, namely the UNESCO historical monument of Borobudur Temple with an area that requires lightning protection of 617,200 m2. The lightning protection method used in this study is the E.S.E (Early Streamer Emission) lightning protection system. The results obtained in this study are in the form of a radius of protection with an air terminal of the Kurn R-150 brand of 70,650 meters2 for each unit of the protection system. It takes 12 units of a lightning protection system to protect all areas of zone 1 and zone 2 that require a protection system. Ground resistance < 5Ω is obtained with one electrode rod 3 meters long for each unit according to the standards of SNI 03-7015-2004, PUIL, and PUIPP. The cost plan ordered for the lightning protection system in the Borobudur Temple area is IDR 302,171,781 with 11% VAT IDR 335,410,677.
Perencanaan Sistem Deteksi Formalin pada Makanan Yashinta Hardiyani; Sapto Nisworo; Hery Teguh Setiawan
ULIL ALBAB : Jurnal Ilmiah Multidisiplin Vol. 2 No. 2: Januari 2023
Publisher : CV. Ulil Albab Corp

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56799/jim.v2i2.1135

Abstract

The use of formalin in food poses serious health risks and there are still many bad people who use formalin as a food preservative, so the author designed and made a formalin detection tool in food without having to be done in a laboratory. The focus of this research is to find out how much ppm the formalin content is in food. The method for research on formalin detection systems in food had designed using experimental techniques. The design of this tool is based on Arduino Nano and uses an HCHO sensor to detect formalin. Peltier is used as a food samples heater to emit steam that the HCHO sensor can detect. In this research, samples without formalin and samples with formalin were tested. The test results obtained that the average error obtained in the test was 8.03% and be obtained the average relative accuracy, which was 91.97%. In tests conducted with laboratory tests without formalin dripping, the test indicated that salted rice anchovies contain formalin by the test sample being purple. This matter that laboratory tests and tests with HCHO sensors indicate the same results.