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Waas, Kristofol
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Humanities Education Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences

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Journal : Journal Mechanical Engineering

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ANALISA KINERJA NATURAL DRAFT COOLING TOWER DI PPSDM MIGAS CEPU Putirulan, Tesya; Waas, Kristofol; Loppies, Leslie S; Lopuhaa, Agustinus Oktovianus
Journal Mechanical Engineering Vol. 2 No. 2 (2024): Agustus
Publisher : Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/jme.v2i2.2914

Abstract

Human resource development center (PPSDM) a series of production processes such as boiler, power plants, coal testing sites, water treatment, fire and safety, pumps, welding workshops, distribution sites and refinery units, one of which is the cooling tower. The cooling tower is part of the power generation system that has a function as a heat exchanger between hot water coming out of the condenser and air so that the water has a lower temperature and can be reused in the condesation proses. The reseach on natural draf cooling tower in PPSDM migas aims to find parameters that affect the performance of natural draf cooling tower such as efficiency, make up water and also the heat transfer capacity of the cooling tower unit. In this writing, researchers use direct research methods in the field to find out the phenomena that occur in the colling Tower. While the performance of the natural draft cooling tower is calculated using the calculation method. The research results show an actual of 82,61 %, the recorded cooling capacity is 2417,941 kJ/s and the make up water value is 24.03 %Keywords: Cooling tower, Range, Approach, Effectiveness, Cooling Capacity, Make-Up Water.
PERHITUNGAN BEBAN PENDINGIN PADA COLD ROOM DAN ABF-1 UNTUK PENYIMPANAN PRODUK HASIL LAUT DI PT. MINA USAHA HARAPAN Kakiay, Isaac Bryant; Waas, Kristofol; Lekatompessy, Roy R.
Journal Mechanical Engineering Vol. 2 No. 2 (2024): Agustus
Publisher : Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/jme.v2i2.2915

Abstract

Refrigeration has become an essential part in the design of spaces that will be occupied by people or products intended to provide space temperature, humidity, other process requirements. Refrigeration was originally used to produce ice, as technology advances, refrigeration has an important role in commercial and non-commercial refrigeration. Research on efficient refrigeration has been carried out by several previous studies. Previous methods were used by calculating cooling efficiency and heat loads that affect cold storage cooling.Based on an interview with one fishery company focused on processing quality seafood products located in PPN Tantui, PT Mina Usaha Harapan, the energy consumption for the cooling system takes up almost 70%-80% of the total energy expenditure of the company. Due to several factors, including excessive heat loads provision, or inefficient cold storage design. Therefore, author wants to calculate the cold storage performance in one of the seafood processing companies based on eco-fishing located in PPN Tantui, PT Mina Usaha Harapan.Calculations and analysis have been carried out in the previous chapter, several conclusions is made: 1) The average value of evaporator capacity is 34.96 kW for Cold Room and 57.39 kW for Air Blast Freezer 2) The calculated total load value (without product load) is 11.94 kW for Cold Room and 3.56 kW for ABF. 3) The company set a time of 9 hours to freeze 3500 kg of seafood, but according to calculation results, it only takes 7 hours to freeze 3830.4 kg of products with product temperature reaching -21 ͦC.Keywords: vapor compression cold storage, refrigeration load, cold room, abf, cold storage, evaporator capacity, seafood products
Co-Authors Kakiay, Isaac Bryant Lekatompessy, Roy R. Loppies, Leslie S Lopuhaa, Agustinus Oktovianus Putirulan, Tesya Untoro, Edi