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Frans P Sappu
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Automotive Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Journal : Jurnal Poros Teknik Mesin Unsrat

 1 
ANALISIS SIFAT MEKANIK MATERIAL KOMPOSIT DARI SERAT SABUT KELAPA Jonathan . Oroh; Frans P Sappu; Romels Cresano Lumintang
JURNAL POROS TEKNIK MESIN UNSRAT Vol. 1 No. 1 (2012): Jurnal Poros Teknik Mesin Unsrat
Publisher : Fakultas Teknik Jurusan Teknik Mesin Universitas Sam Ratulangi

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Abstract

This research uses coco fiber having straight fiber orientation. Different volume fraction with alkali (NaOH) treatment for two hours and without treatment have applied in this work. This composite was manufactured by molding where Polyester BQTN 157 was used as matrix. Bending test was performed based on ASTM D 6110 standard. The aim of this research is to obtain the optimum bending strength of coco fiber composite for volume fraction of 0 % fiber and 100% resin, 10% fiber and 90% resin, 20% fiber and 80%resin, 30% fiber and 70% resin, 40% fiber and 60% resin, 50% fiber and 50% resin, 60% fiber and 40% resin, 70% fiber and 30% resin with alkali treatment for two hours and without treatment, and find the result of fracture at the specimens. Based on the test results, the mean bending modulus of elasticity for specimens without treatment is 619047.619 MPa. This value was obtained at volume fraction of 40% fiber and 60% resin. On the other hand, the mean bending modulus of elasticity for specimens with alkali treatment is 4893.410928 MPa. This value was obtained at volume fraction of 30% fiber and 70% resin. Finally, based on the observation, the type of fracture occurring on specimens is broken fiber.
PERHITUNGAN BEBAN PENDINGIN PADA RUANG SIDANG FAKULTAS TEKNIK UNSRAT Vernando V Sasuang; Frans P Sappu; Hengky Luntungan
JURNAL POROS TEKNIK MESIN UNSRAT Vol. 7 No. 1 (2018): Jurnal Poros Teknik Mesin Unsrat
Publisher : Fakultas Teknik Jurusan Teknik Mesin Universitas Sam Ratulangi

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Air conditioning is a cooling system where heat is transferred from the room to the atmosphere. In conducting activities in the room humans require conditions comfortable, the temperature or the humidity of the air in the room. To achieve comfortable conditions in a room, it is necessary to do air conditioning by using a cooling machine so that comfortable air can be obtained. Meeting Room of Faculty of Engineering Sam ratulangi University is often used as a place to carry out various activities, thus requiring cooling system. In this final project a calculation is performed to determine the peak cooling load and then determine the capacity of the cooling machine used to cool the room.From the calculation results obtained by the peak cooling load on the room = 125.301,3 BTU/jam. If using an Air Conditioning (AC) engine with 2 PK, then AC is required during peak load in the room as much as 7 units Keywords: Air conditioning, Cooling load, Cooling machine
ANALISIS EFISIENSI EFEKTIF HIGH PRESSURE HEATER (HPH) TIPE VERTIKAL U SHAPE DI PEMBANGKIT LISTRIK TENAGA UAP AMURANG UNIT 1 Reind Junsupratyo; Frans P Sappu; Arwanto M Lakat
JURNAL POROS TEKNIK MESIN UNSRAT Vol. 7 No. 1 (2018): Jurnal Poros Teknik Mesin Unsrat
Publisher : Fakultas Teknik Jurusan Teknik Mesin Universitas Sam Ratulangi

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Heat exchanger is a device that serves to move one fluid to another fluid. In general, fluids are used as cooling using ordinary water (Cooling Water), and hot media use steam heat as heaters (Superheated Steam). One type of heat exchanger that is widely used in power generation industries is the Shell and Tube Heat Exchangers. High Pressure Heater (HPH) is one example of a heat exchanger that is widely used in the power generation industry that serves as a feed water heater before entering the boiler. This research was conducted to determine the effective efficiency of High Pressure Heater (HPH) at Amurang Power Plant (PLTU) unit 1. This determination is based on operational data on June of 2017. Data used to calculate the effective efficiency of High Pressure Heater (HPH). The calculations use the Shell and Tube Heat Exchanger heat transfer method. The calculation results obtained the highest effective efficiency achieved is equal to 69.392% and the lowest effective efficiency of 64.023% with an average effective efficiency of 66.531% during the month of June 2017.Keywords : Heat Exchanger, High Pressure Heaters, Effective Efficiency
Co-Authors Arwanto M Lakat Hengky Luntungan Jonathan . Oroh Junsupratyo, Reind Lakat, Arwanto M Reind Junsupratyo Romels Cresano Lumintang Rudy Poeng Sasuang, Vernando V Vernando V Sasuang