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All Journal Jurnal Teknosains Rekayasa Mesin INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Jurnal Ilmiah Telsinas Elektro, Sipil dan Teknik Informasi BHAKTI PERSADA Jurnal Aplikasi IPTEKS (Journal of Applied Sciences and Technology) Jurnal Pengabdian Masyarakat Bangsa Jurnal Inovasi Teknologi dan Edukasi Teknik Jurnal Polimesin
Negara, I Gede Artha
Bali State Polytechnic
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PKM Revitasilasi Mesin Pendingin Chest Freezer di Banjar Jeroan Desa Patemon Singaraja Temaja, I Wayan; Negara, I Gede Artha; Subagia, I Wayan Adi; Putra, I Dewa Gede Agus Tri; Widiantara, Ida Bagus
Bhakti Persada Jurnal Aplikasi IPTEKS Vol. 9 No. 2 (2023): Bhakti Persada Jurnal Aplikasi IPTEKS
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/bp.v9i2.100-107

Abstract

Desa Patemon mempunyai luas wilayah 282 Ha, terletak antara Kelurahan Seririt. Banjar Jeroan adalah salah satu banjar di Desa Patemon. Banjar ini terletak di ujung desa dan berbatasan langsung dengan desa Bengkel. Kegiatan-kegiatan yang melibatkan masyarakat Banjar Jeroan dapat mencakup: kegiatan persiapan bahan upacara, dan persiapan perlengkapan upacara. Tujuan dari kegiatan PKM ini adalah untuk meningkatkan pelaksanaan layanan upacara keagamaan dan kegiatan masyarakat di Banjar Jeroan Desa Patemon dengan memperhatikan aspek kebersihan, keselamatan, dan kesehatan. Selain itu, untuk menerapkan sarana dan prasarana yang berkaitan dengan aspek efisiensi energi dengan menerapkan konsep green technology. Metode yang diterapkan di PKM ini adalah studi observasi, pelatihan pengoperasian dan perawatan mesin pendingin serta serah terima perangkat mesin pendingin chest freezer. Hasil dari PKM ini adalah pengujian kinerja mesin chest freezer teramati temperatur kabin menurun hing-ga 12°C pada sekitar 5 menit pengujian. Temperatur teramati relatif konstan pada waktu pengujian sekitar 65 menit sampai 125 menit yaitu −20°C. Temperatur kabin terendah teramati mencapai −20°C. Hasil evaluasi kepuasan terkait pengabdian masyarakat berdasarkan pengamatan survey, 80% masyarakat memberikan persepsi sangat baik terhadap aspek ketersediaan teknologi serta fasilitas pelatihan yang diimplementasikan di kegiatan pengabdian. Secara keseluruhan, penyerahan mesin pendingin chest freez-er digunakan untuk penyimpanan olahan daging mentah yang mudah busuk sehingga olahan daging mampu bertahan dalam waktu yang lama. Kegiatan PKM ini menunjang dan meningkatkan layanan kegiatan kemasyarakatan dan upacara keagamaan di Banjar Jeroan.
Experimental Study of Cooling Performance and Electrical Parameters in a Microcontroller-Driven Inverter AC System Negara, I Gede Artha; Anakottapary, Daud Simon; Midiani, Luh Putu Ike; Temaja, I Wayan; Santosa, I Dewa Made Cipta
invotek Vol 23 No 2 (2023): INVOTEK: Jurnal Inovasi Vokasional dan Teknologi
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/invotek.v23i2.1105

Abstract

Recent advancements in air conditioning (AC) technologies, such as inverters, enable the compressor to remain activated despite reaching the setpoint temperature. This study investigates the cooling performance and electrical parameters of a split inverter AC system controlled by a microcontroller in order to determine the operational performance characteristics of the air conditioning system. An ATmega 2560 microcontroller integrated with PZEM, DS18B20, and LCD I2C sensors monitors was 8,525 Btu/h capacity split inverter AC. During a 1-hour experimental run, the temperature differential between supply air (Tsupply) and return air (Treturn) stabilized at approximately 17 °C, with Tsupply reaching a minimum of 8.5 °C. Treturn remained relatively constant after 500 s with no fluctuations. Moreover, power draw maintained an average of 750 W (1 PK) with no variations, exhibiting an inverse relationship with Tsupply. The maximum energy consumption recorded during the experiment was 1,373 kWh. As expected based on fundamental thermodynamic principles, the energy usage showed a direct proportional relationship with the total runtime of the system. That is, the longer the AC system was engaged, the higher the total energy required to maintain the cooling effect. Overall, microcontroller-based split inverter AC enables real-time performance monitoring and efficient operation, representing a promising technology.
Embracing the Evaporative System in Air Conditioning Technology for Efficient Cooling Solutions Gde Widiantara, Ida Bagus; Negara, I Gede Artha; Bangse, Ketut
invotek Vol 23 No 2 (2023): INVOTEK: Jurnal Inovasi Vokasional dan Teknologi
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/invotek.v23i2.1133

Abstract

The use of an air conditioning system requires large amounts of electrical energy to carry out repeated vapor compression cycles. The use of an evaporative cooling system in this research is by spraying condensate water on the condenser, which is one solution to absorb condenser heat. Another thing that can be done is to reset the fan speed on the condenser to cool it. Resetting the fan speed on the condenser can also help improve AC performance and reduce electrical energy use. The test was carried out by modifying the 1 Pk R-410a AC split condenser by installing 6 nozzles, 2 rows of 3 columns and a DC pump to spray water on the condenser. The independent variables of this research are spraying position and fan speed. The result obtained from the research is an increase in COP by 35% and a reduction in electrical power usage by 15% by using additional water spray with a nozzle behind the condenser both when blowing the full blower and when the blower blowing speed is reduced by 75%. The use of evaporative systems in air conditioning technology is a promising solution to achieve sustainable and efficient cooling solutions.
Co-Authors A.A.N.B Mulawarman Adi Winarta Adie Wahyudi Oktavia Gama Bangse, Ketut Daud Simon Anakottapary Dwidiani, Ni Made I Dewa Gede Agus Tri Putra I Dewa Made Cipta Santosa I Gede Santosa I Gusti Agung Bagus Wirajati I Gusti Bagus Wijaya Kusuma I Gusti Ngurah Nitya Santhiarsa I Gusti Ngurah Putu Tenaya I Nyoman Suamir I Nyoman Wahyu Aris Gunawan I Putu Gede Yudi Adnyana Putra I Wayan Adi Subagia I Wayan Sutama I Wayan Temaja Ida Bagus Gde Widiantara Ida Bagus Widiantara L.P. Ike Midiani Luh Putu Ike Midiani Made Ardikosa Satrya Wibawa Putu Wijaya Sunu Subagia, I Wayan Adi Tjokorda Gde Tirta Nindhia Widiantara, Ida Bagus Wisesa, I Dewa Putu Arjun Suhartana