Yudhy Kurniawan, Yudhy
Teknik Pendingin dan Tata Udara, Politeknik Negeri Indramayu

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ANALISA KINERJA SISTEM HEATING DEHUMIDIFIER MENGGUNAKAN AC SPLIT UNTUK PENGERINGAN IKAN Kurniawan, Yudhy; Ruslani, Ruslani; Akbar Anggriawan, Fadil
Jurnal Teknologi Terapan Vol 3, No 1 (2017): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1048.636 KB) | DOI: 10.31884/jtt.v3i1.8

Abstract

One of great potential area in the fisheries sector in West Java province is Indramayu District. Percentage of fisheries production which accounts for 60% of the needs of the fishery. Indramayu community, especially the northern coastal areas of Indramayu district of livelihood relies heavily on the this sector. During this process the dried fish production still relies on the natural conditions of the solar thermal. So that when the rainy season the fishermen feel a loss, because of natural heating hampered and finally ignored orders from customers due to the  and declining fish quality, so prices soaring sales doubled. Hence, the need for attention to improving the quality of production of dry fish processing, is one of the way by utilizing the split Air Conditioning (AC) as a heating dehumidifier for drying fish. This equipment is modified by utilizing the waste heat from the condenser as reheat is then added to the electric heater is controlled according to the needs drying, and after that it was blown with using  fan/blower to the drying chamber containing the fish on the shelves are arranged. The results obtained can be analyzed on the performance, drying temperature and relative humidity (RH) or water content is as expected.
KAJI EKSPERIMENTAL DEHUMIDIFIER PORTABLE BERBASIS TERMOELEKTRIK DENGAN VARIASI ARUS LISTRIK MASUKAN Kurniawan, Yudhy; Setiawan, Aa
Jurnal Teknologi Terapan Vol 1, No 1 (2015): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v1i1.32

Abstract

Sebuah prototipe didesain untuk mendinginkan dan kemudian sekaligus mengeringkan atau disebut dehumidifier. Alat ini menggunakan termoelektrik sebagai komponen utama dalam dehumidifikasi. Hal ini mengingat alatnya relatif murah dengan daya yang kecil, portable, dan ramah lingkungan karena tanpa menggunakan refrigeran sebagai fluida kerja. Penelitian ini dibuat atas dasar permasalahan gudang penyimpan benih sayuran, dimana kelembaban belum dapat dikontrol dengan baik. Pengontrolan kelembaban sangat berpengaruh dalam memperpanjang umur tumbuh benih, sehingga para petani dapat menyimpan benihnya dalam waktu lama. Untuk benih sayuran dibutuhkan keadaan ruangan yang relatif dingin sekitar 20 oC dan kelembaban relatif (RH) berkisar 45% - 50%. Umumnya peralatan menggunakan refrigeran atau desiccant untuk proses dehumidifikasi penyimpan benih, sedangkan penggunaan termoelektrik belum pernah diaplikasikan pada gudang penyimpan benih sayuran.Alat ini bekerja dengan 2 tahap. Dimana udara lingkungan masuk melalui tahap 1 yang merupakan proses pendinginan yang disebarkan oleh heat sink dari pendinginan Peltier sehingga terjadi penurunan temperatur kemudian dengan adanya plat pengarah udara dingin dialirkan menuju tahap 2 yang merupakan proses pemanasan (kebalikan efek Peltier) dimana pada tahap ini udara dingin dikeringkan melalui heat sink sehingga terjadi penurunan kelembaban. Mengalirnya udara kering keluar system dibantu oleh fan axial. Dari kinerja system ini diharapkan terjadi proses dehumidifikasi yang diharapkan.
TEST CHARACTERISTICS OF CENTRIFUGAL PUMPS ON COOLING HYDRONIC SYSTEM USING ENVIRONMENTAL FRIENDLY REFRIGERATION Kurniawan, Yudhy; Kusnandar, Kusnandar
Jurnal Teknologi Terapan Vol 4, No 1 (2018): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1188.767 KB) | DOI: 10.31884/jtt.v4i1.93

Abstract

In generally cooling hydronic system applied to large-scale commercial or industrial use, where water cooling is processed through heat transfer mechanism in the evaporator pipe using a vapour compression system such as a chiller with refrigerant. The research idea is based on not available practice test of cooling hydronic system at the Department of Refrigeration and Air Conditioning Engineering at State Polytechnic of Indramayu which is the main competency in the course of Air Conditioning Applied. As teh utilization practice made cooling hydronic system by utilizing a vapour compression system that is split AC using refrijeran R32 is environmentally friendly. The split AC system modifies its evaporator coil into a heat exchange medium to cool water in the water tank. The cold water is then distributed in the piping installation system with the two pumps that are varied in series and parallel. From this process, it is necessary to know the working capability of the pumps in terms of its characteristics (head and capacity) or its performance, including energy losses and cooling capacity system. The results obtained are analyzed and the calculation is in accordance with theoretically known study.