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Studi Kelayakan Pemanfaatan PV sebagai Sumber Energi Ruang Pendingin Karkas Ayam Broiler Efendi, Mutiara; Hamzah, Reodhy; Indah Negara, Vamellia Sari; Araliz, Maheka Restu
Jurnal Teknik Mesin Vol 17 No 2 (2024): Jurnal Teknik Mesin
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jtm.17.2.1631

Abstract

When chicken prices drop, farmers often extend the harvesting period, which inevitably increases production costs. An alternative solution is to store chickens as carcasses in cooling storage. Indonesia has significant solar energy potential for the implementation of solar cooling storage technology to reduce electricity costs as a power source for cooling storage. This study aimed to analyze the economic feasibility of designing solar cooling storage with a one-ton carcass capacity. The research method involved analyzing the costs of implementing cooling storage by comparing the costs of electricity sourced from PLN, solar energy using PV, and extending the harvesting period by up to 10 days. The analysis results showed that the designed cooling storage had a capacity of 12 m³, and the production costs for storing carcasses using hybrid PLN and PV electricity were more efficient than using PLN electricity alone. This cost-saving approach is significantly more efficient than the production costs incurred when farmers extended the harvesting period. In terms of economic feasibility, the BEP values for PLN and PV electricity sources were 18.86 and 21.02 years, respectively. The calculations showed a BEP difference of approximately 5 years between PLN and PV electricity; however, economically, PV systems were more advantageous in the long term.
Rancang Bangun Cetakan Alat Press Pelepah Pinang Menjadi Wadah Makanan Ramah Lingkungan untuk UMKM Araliz, Maheka Restu; Adril, Elvis; Budiman, Daddy; Mutia, Mutia
Jurnal Teknik Mesin Vol 18 No 1 (2025): Jurnal Teknik Mesin
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jtm.18.1.1846

Abstract

The issue of plastic waste has become a global concern that urgently needs to be addressed. On the other hand, agricultural waste also poses its own challenges. Indonesia is an agrarian country where the agricultural sector plays a significant and vital role in the national economy. One of the major agricultural products in Indonesia, particularly in West Sumatra, is areca nut (betel nut). The areca palm sheath is largely underutilized by farmers, often left unused or burned, which in turn leads to another issue—air pollution. The transformation of organic solid waste into eco-friendly products is still rarely implemented. This study aims to design, assemble, and test a simple press mold to process areca palm sheaths into environmentally friendly food containers. The results show that the mold was successfully designed with dimensions of 140 mm x 140 mm x 20 mm, using ST 42 material. Mold testing with temperature variations (100°C, 150°C, and 175°C) and durations (1 minute, 2 minutes, and 5 minutes) indicated that a temperature of 150°C produced the best results in terms of color and shape accuracy. This innovation is expected to support small and medium enterprises (SMEs) in reducing plastic waste and utilizing areca palm sheath waste.