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The Feasibility of the Smart Building Training Kit as Learning Media for Electrical Lighting Installation Practices in Vocational High Schools Sukir, Sukir; Asnawi, Rustam; Taruno, Djoko Laras Budiyo; Hanif, Naufal Muhammad
Jurnal Edukasi Elektro Vol. 7 No. 1 (2023): Jurnal Edukasi Elektro, Volume 7, Nomor 1, 2023
Publisher : DPTE FT UNY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jee.v7i1.60894

Abstract

The purposes of this study are: (1) to produce smart building training kit products, and (2) to find out the feasibility of the smart building trainer kit as a learning medium for Electrical Lighting Installation Practices in Vocational High Schools (VHS). This research employed the research and development (R & D) with the ADDIE model based on Branch (Analyze, Design, Develop, Implement, and Evaluate). The techniques to collect the data included interviews, observations, and questionnaires. The data obtained were analyzed descriptively. The research results show that (1) smart building trainer kit has been produced as a learning tool for Electric Lighting Installation Practices at VHSs with the dimensions of 96 cm in length, 67 cm in height, 25 cm in width at the bottom, and 13 cm at the top; and (2) the developed product was declared very feasible by material experts (95.83%), very feasible by media experts (89.06%), and appropriate by VHS students (80.8%).
Skillion Roof Design to Get Optimum Solar Radiation in Yogyakarta Putra, Yudi Utomo; Asnawi, Rustam; Wardhany, Arum Kusuma
Jurnal Edukasi Elektro Vol. 7 No. 2 (2023): Jurnal Edukasi Elektro, Volume 7, Nomor 2, 2023
Publisher : DPTE FT UNY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jee.v7i2.65953

Abstract

Electrical energy is energy that cannot be released from daily activities at home, all elec-tronic equipment requires electrical energy, one source of electrical energy is the electrici-ty company PT. PLN (Persero) and as an alternative source of electrical energy, a home can use solar panels installed on the roof as a small scale power generator or can be called Solar Home System (SHS), but electrical energy obtained is very dependent on the radia-tion received by the solar panels, therefore, to obtain optimum solar radiation, it is neces-sary to calculate the azimuth angle and tilt angle which can be used as a reference for in-stalling solar panels. So mathematical calculations are needed to calculate the maximum azimuth angle and tilt angle. Mathematical modeling is used to calculate solar energy in-stalled at coordinates 7.7° south latitude, in that coordinate, average solar radiation can get from Meteorological, Climatological, and Geophysical Agency on horizontal surface, then calculation the declination angle, latitude angle, hour angle, azimuth angle and tilt angle to get value of incidence angle. Value of the declination angle, latitude angle, and hour angle are constant, while the azimuth angles divide into four directions, it's 0°, 90°, 180°, and 270° and the tilt angles are 20°, 25°, and 30° on skillion roof design. The results of the calculation and analysis of the movement of the sun for one year show that, by calculating the average solar radiation in a year, the roof of the house in the form of a skillion with an azimuth angle in the 0° gets the most optimal solar energy at an angle of 20° with an aver-age solar radiation of 442,96 W/m2 in one year.
PENGEMBANGAN UNIT PENSUPLAI DAYA BERTENAGA SURYA UNTUK POMPA AIR KELOMPOK TERNAK SAPI DI DAERAH PEDESAAN Asnawi, Rustam; Yuniarti, Nurhening; Winarto, Felixtianus Eko Wismo
INOTEKS: Jurnal Inovasi Ilmu Pengetahuan,Teknologi, dan Seni Vol 21, No 2 (2017)
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (370.593 KB) | DOI: 10.21831/ino.v21i2.19227

Abstract

In farming, clean water is a basic need to wash food, drink, bathe and clean the cow shed. Provision of clean water is by means of an electric water pump. Meanwhile, electricity prices tend to rise gradually, consequently monthly the electricity bill for farming needs rise. Another thing, the power outage in the countryside sometimes happens in a long duration. The stability of clean water availability at the location of livestock groups is disrupted. One of the best solution approaches to overcome these problems is to create and develop applied products related to renewable energy and energy independence, namely solar power supply unit. This power supply unit uses 2 150WP 12 Volt solar panels, 2 solar charge controllers, 3100Ah batteries and a DC to AC 1500W inverter. The result of the development of this solar powered power supply unit is about 300 Watt. Its main function is to turn on the water pump during the day and in addition it is able to turn on the led light for street lighting at night. Based on the observations, this unit has been operating well and effectively for about 1 month and successfully assisted members of the cow farm groups in the provision of clean water