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All Journal Semesta Teknika Journal of Electrical Technology UMY
Purwanto, Kunnu
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Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Library & Information Science

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Potentials of Organic Waste Conversion in a Green Campus Concept Mujaahid, Faaris; Fauzi, Argi Mochamad; Syahputra, Ramadoni; Putra, Karisma Trinanda; Purwanto, Kunnu
Journal of Electrical Technology UMY Vol 1, No 4 (2017)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.1424

Abstract

Development of waste-to-energy plant is regarded as one of a solution to reduce fossil energy dependency and switch to another alternative energy sources, thus needs to be implemented immediately. Research on the potential of organic waste by taking case studies at UMY green campus program can be an illustration that in the future UMY can process this potential into an alternative renewable energy. This research was conducted by studying waste management and data collection methods, such as field observations, discussions with related parties about the waste cycle, and calculations with the concept of gasification. Calculation of biomass produced by organic waste is then supplied to the motor generator for electricity production. Annually, 31.8 tons of organic waste could produce 7.9 kiloliters of biomass and channel it to the power plant system for generating electricity energy as much as 5.3 MWh per year. This number equals to the electricity supply of five small-housing in Indonesian typical house.
Electrical System Design and Installation of New Building, Aisyiyah University, Yogyakarta Suripto, Slamet; Jamal, Agus; Purwanto, Kunnu; Wicaksono, Wahyu Nugroho; Jusman, Yessi
Journal of Electrical Technology UMY Vol 2, No 3 (2018)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.2337

Abstract

Aisyiyah University New Yogyakarta Building is one of the commercial buildings that moves the field of education in Yogyakarta. The New Building of Aisyiyah University Yogyakarta consists of 10 floors, including the basement floor, main floor and roof floor. Electric loads installed at the New Building of Aisyiyah University Yogyakarta include lighting loads (lights) and power loads (sockets) and the power loads of electric motors (air conditioners, elevators and others), which of course requires a large enough electricity supply. Electricity installed in the New Building of Aisyiyah University in Yogyakarta is 1010.9 kVA. The power supplied is 800 kVA from State Electricity Company and the total power capacity of the transformer is 1000 kVA and a generator set with a capacity of 1000 kVA. Where the backup power supply system is fully supplied by the generator set.
Energy Efficiency Through Lighting and Cooling System Approach Mujaahid, Faaris; Mustika, Doane Puri; Syahputra, Ramadoni; Putra, Karisma Trinanda; Purwanto, Kunnu
Journal of Electrical Technology UMY Vol 2, No 1 (2018)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.2127

Abstract

This work reports the implementation of using energy efficient electronic devices to reduce the electricity consumption in Universitas Muhammadiyah Yogyakarta (UMY). The first step taken by UMY is to replace lighting and cooling system in all its rooms using energy saving devices. This research was conducted in building E4. This research was conducted by surveying the designated building to get data about lighting and air conditioner devices used in the E4 building. If the proposed concept is applied to lighting and cooling system, UMY would be able to reduce electricity consumption by 28.1 MWh, and this can support the breakthrough of turning UMY into a green campus.
Unjuk-kerja Pembangkit Listrik Tenaga Hibrid Berbasis Mikrohidro dan Surya Syahputra, Ramadoni; Subarkah, Yudha Agung; Purwanto, Kunnu; Jamal, Agus
Semesta Teknika Vol 26, No 1 (2023): MEI
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/st.v26i1.16284

Abstract

Sumber energi terbarukan yang sangat potensial adalah energi mikrohidro dan surya. Dalam aplikasinya, diperlukan suatu pembangkit listrik berukuran kecil dengan beban listrik yang sesuai yang dapat digunakan secara fleksibel. Dalam penelitian ini dibahas performa pembangkit listrik hibrid tenaga surya dan mikrohidro portable. Pembangkit listrik hybrid tersebut dirancang dengan kapasitas maksimum 1100 watt. Pembangkit listrik yang dirancang adalah bersifat portable, sehingga dapat dibawa dan dipindahkan dengan mudah sesuai lokasi yang sesuai. Lokasi yang sesuai untuk operasional pembangkit listrik ini adalah saluran irigasi, sungai kecil, atau selokan dengan area terbuka. Hal ini dimaksudkan agar pembangkit listrik ini menghasilkan daya listrik yang optimal, karena selain mendapatkan aliran air untuk menggerakkan mikrohidro juga mendapatkan paparan sinar matahari yang cukup. Ujicoba pembangkit listrik ini telah dilakukan untuk uji tanpa beban dan menghasilkan keluaran tegangan yang memadai. Pengujian telah dilakukan untuk pulley turbin mikrohidro berukuran 45 mm dan 100 mm. Hasil pengujian menunjukkan bahwa pulley turbin mikrohidro berukuran 45 mm menghasilkan daya listrik yang lebih tinggi dibanding pulley 100 mm.
Co-Authors Agus Jamal Faaris Mujaahid, Faaris Fauzi, Argi Mochamad Jusman, Yessi Karisma Trinanda Putra, Karisma Trinanda Mustika, Doane Puri Ramadoni Syahputra Slamet Suripto Subarkah, Yudha Agung Wicaksono, Wahyu Nugroho