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Journal : LONTAR Jurnal Teknik Mesin Undana (LJTMU )

Pengaruh Penggunaan Sistem Sekat Dalam Box Portable Atmospheric Water Generator Terhadap Unjuk Kerja Produksi Air, Efisiensi, COP, Pawg Sistem Alami Suparlan, Maria D.C.; Jafri, Muhamad; TARIGAN, Ben Vasco
LONTAR Jurnal Teknik Mesin Undana (LJTMU ) Vol 10 No 02 (2023): Oktober 2023
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/ljtmu.v10i02.13275

Abstract

2.1 billion people can’t have access to water, and 4.5 billion with insufficient sanitation or clean water sources. While water is extremely useful for everyday, such as washing, cooking, bathing etc. So fulfillment of water needs must balanced with increase the addition of population can be fulfilled. this study, was carried out experimentally by testing on 2 variations media, media test with insulation and media test without insulation, at 30 minutes intervals, temperature was measured in box to identify factors affect condensation process at several points. Obtained from research analyze effect using partition system on PAWG indications for water production, efficiency, COP, natural PAWG systems for fresh water production within 24 hours from 2 variations of media and maximum Coefficient of Performance. Water amount production for 24 hour, the variation of media with changes in temperature and good COP is found in variation media with insulation, the highest temperature is 36.750C, the humidity value 66.3% and COP value 0.230769 and amount water production is 16 ml, and temperature change in variation of media without insulation with the highest temperature is 39.50C, humidity is 65.4% with a COP value 0.02 and the amount of water production is 12 ml.
Penggunaaan bahan alami briket arang kayu sebagai penyerap dan penyimpan kalor solar still desalinasi interfasial Jafri, Muhamad; Alfarisi, Figo Jafri; Tarigan, Ben Vasco
LONTAR Jurnal Teknik Mesin Undana (LJTMU ) Vol 11 No 02 (2024): Oktober 2024
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/ljtmu.v11i02.18042

Abstract

Considering that solar energy is unlimited, it is hoped that the solar still distillation method can be used in remote and poor areas without pollution and excessive consumption of fossil fuel materials. In this research, charcoal from dried Kusambi (Schleichera Oleosa) coded SO_W is used as a carbon-based heat absorbing and storing material, which has porous characteristics and high energy absorption so that it forms a wider surface for radiation and convection. The experiment was carried out in 4 basins using Styrofoam containing charcoal briquettes with a cross-section of 4, 6, and 8 sections with different sizes and areas in 1 absorber section for 8 hours under sunlight. Basins without charcoal were also tested as a comparison. Temperature is measured at several points in the basin to identify factors influencing evaporation. The results of the research show that adding heat-absorbing material to the basin can accelerate seawater to reach its boiling point so that it can evaporate (evaporation). Temperature and humidity in each basin also have similar changing trends where temperature is strongly influenced by solar radiation. The use of charcoal briquettes can also increase the rate of convection and evaporation heat transfer in the basin, as well as maximum efficiency in basin 2 with a variation of 6 plots of 39.97%, followed by a variation of 4 plots in basin 1 of 38.32%, and a variation of 8 plots in basin 3 it was 37.59%. Meanwhile, in basin 4 with the variation without charcoal, the efficiency was 34.96%.