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Artikel Jurnal
ANALISIS KUALITAS GAS BUANG PADA STEAM BOILER BERBAHAN BAKAR BIO-SOLAR DAN BATU BARA
Steam boilers fueled by biodiesel and coal are one of the industrial activities that still produce exhaust emissions such as Total Particulate (PM), Sulfur Dioxide (SO2), Opacity, Nitrogen Oxide (NOx), and Carbon Monoxide (CO) which is very dangerous for public health and the environment…
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Artikel Jurnal
STEAM TURBINE HEAT RATE ANALYSIS BY METHOD PERFORMANCE TESTS ON POWER PLANT IN PT. KSA PALM FACTORY
This research analyzed the heat rate of a steam turbine in the palm factory of PT. KSA (PT. KSA) using performance testing methods. Steam turbine heat rate is a crucial parameter in power plant efficiency, and optimizing it can lead to significant cost savings. The research methodology conducted…
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Artikel Jurnal
PEMANFAATAN ZEOLIT NAA DARI KAOLIN SEBAGAI ADSORBEN LOGAM BESI (FE) PADA LIMBAH CAIR LABORATORIUM
Excessive iron (Fe) content in water caused corrosion and at high amounts are toxic to the human body. One of the laboratory waste water treatment techniques is adsorption method. The adsorbent used in this study was zeolite NaA which was synthesized using kaolin as one of the most abundant…
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Artikel Jurnal
STUDI NUMERIK KINERJA PENDINGIN COOLANT HYBRID-NANOFLUID AL2O3-TIO2 PADA RADIATOR
Coolant in automotive engine cooling systems generally uses coolant with a minimum ethylene2 glycol mixture of 30 percent. Currently, the use of nanoparticles can be mixed in basic coolant between fluid and nanoparticles that have better thermal physical properties than pure coolant. The purpose of…
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Artikel Jurnal
ANALISIS PERUBAHAN BENTUK CHASIS TERHADAP BEBAN SEBAGAI DASAR PERANCANGAN MESIN BENDING HIDRAULIC
In the world of the automotive industry there are still several problems that must be resolved, such as what happened in one of the workshops, there was a shortage of tools to repair bent truck frames because of the accident. One of the tools needed to repair the frame is the bending tool, with…
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Artikel Jurnal
PEMBUATAN BETWEEN CENTRE TEST BAR MESIN BUBUT UNIVERSAL
The inspection tool commonly used during the manufacture and acceptance testing of new machine tools or repair of old machine tools is the test bar. The test bar is a mandrel for calibration aids representing an axis to be checked within a given value, either for run-out or for location (position…
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Artikel Jurnal
EFFECT OF COMPRESSOR INLET TEMPERATURE ON THERMAL EFFICIENCY ROLLS ROYCE RB211 GAS GENERATOR IN COMBINED CYCLE POWER PLANT
The combined cycle power plant must operate 24 hours without stopping so that in operation at any time an increase in the temperature of the gas generator RB211 can occur. The RB211 gas generator works well when the ambient temperature is low. The X combine cycle power plant uses a chiller to lower…
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Artikel Jurnal
ANALYSIS OF COCONUT FIBER REINFORCED COMPOSITES WITH HOT PRESS TECHNIQUES
Natural fibre waste is a material with high material resistance, including fibres derived from coconut fruit. Coconut fruit waste is frequently underutilised and can contribute to environmental pollution if not handled correctly. This study's objective is to convert waste from coconuts into fibres…
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Artikel Jurnal
STUDY OF ADDITIONAL FIN TO INCREASE EFFICIENCY OF SUPERHEATER AT HEAT RECOVERY STEAM GENERATOR
Power plants are part of industrial facilities used to produce and generate electricity from various power sources; one of those is PLTGU (Pembangkit Listrik Tenaga Gas dan Uap or Gas and Steam Power Plant). PLTGU is a combined cycle between PLTG and PLTU. It is necessary to achieve a high-capacity…
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Artikel Jurnal
THE EFFECT OF THERMAL RESISTANCE OF CEILING LAYER ON THE PERFORMANCE OF AN AIR CONDITIONER AND ROOM TEMPERATURE DISTRIBUTION
The effectiveness of an air conditioner does not only depend on the design of the air-conditioner solely. Several factors affect the effectiveness of the cooling process of a room. One of the main factors in obtaining optimal results in the cooling process of a room is the rate of heat flow that…
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Artikel Jurnal
UNJUK KERJA MOTOR BAKAR PERTALITE DENGAN PENAMBAHAN BIOETHANOL DARI TETES TEBU
The rapid increase in the number of motorized vehicles has resulted in the depletion of the availability of fossil-based fuel oil. Bioethanol from sugarcane molasses waste is an alternative that can be applied to vehicles with the condition that it has 99.95% ethanol fuel grade. The study used a…
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Artikel Jurnal
PEMBUATAN DAN PENGUJIAN SIFAT MEKANIK WELDING SPESIMEN LOGAM DISSIMILAR AISI 1015 DENGAN AISI 304L MENGGUNAKAN PROSES GMAW
The manufacture of specimens produced by MAG welding on the joining of metal plates not AISI 1015 with SS304L, must meet the welding standards used. Low carbon steel AISI 1015 and stainless steel SS304L were used in this experiment by applied different current variations to each sample, namely 120…
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Artikel Jurnal
OPTIMASI PROSES TURNING PADA AA 6061 DENGAN METODE MINIMUM QUANTITY LUBRICATION
The use of vegetable oil-based cutting fluids under minimum quantity lubrication (MQL) lubrication has been suggested as a potential alternative. The cutting fluid is conveyed in the form of fine droplets with compressed air delivered precisely to the cutting zone. This study aims to determine the…
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Artikel Jurnal
Kekuatan Bending dan Tarik Komposit Berpenguat Serat Eceng Gondok/Tebu Bermatrik Epoxy
The use of natural fiber as composite material is growing rapidly due to excellent characteristics, environmentally friendly quality and low price. For this reason, natural fiber breaks the dominance of synthetic fiber composite previously used in industries, especially in automotive manufacturing…
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Artikel Jurnal
PENGARUH WAKTU SOLUTION TREATMENT DAN AGING TERHADAP KEKERASAN DAN KEKUATAN TARIK ALUMINIUM PADUAN AA 7075 – T6
Aluminium 7075 is a material used to plane body, because this material is corrosion-resistant, and its properties can be formed well, low density and light. Aluminium 7075-T6 which is mainly used for aircraft manufacturing, has a content of 0,37% Zn, 0,13% Mg, 0,07% Cu and 0,20% Si. Because this…
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Artikel Jurnal
COMPARISON OF THE ACTIVATION OF GIGANTOCHLOA APUS TO INCREASE THE ADSORPTION ABILITY OF MEDICAL LIQUID WASTE
Medical facilities are exposed to substantial health and safety hazards as a result of the existence of perilous substances such as germs, viruses, and mold. The integration of drug use courses in medical education is hindered by constraints such as time limitations, a scarcity of well-informed…
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Artikel Jurnal
PENGARUH CO-FIRING SERBUK KAYU KEDONDONG TERHADAP PERFORMA DAN EMISI GAS BUANG BRIKET BATU BARA
Coal is the main fuel in steam power plants (PLTU) whose availability is dwindling. Realizing this, one of the efforts made is to mix coal with other fuels, known as Co-Firing. This is done as an effort to substitute new and renewable energy and is friendly to the environment. The purpose of this…
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Artikel Jurnal
PENGEMBANGAN PRODUK CASING ALAT KESEHATAN PEMANTAUAN INFUS PINTAR (MIFUS) DENGAN METODE RAPID TOOLING
MiFUS® is a tool that can display the patient's infusion condition so that nurses can monitor patients one by one in a short time simultaneously. Several nurses were involved in this study to provide input to the casing. Product design is done at the beginning to know the initial casing design…
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Artikel Jurnal
JARAK ROTOR YANG OPTIMAL TERHADAP RIPPLE PLATE PADA MESIN RIPPLE MILL UNTUK EFISIENSI HASIL PEMECAH BIJI KELAPA SAWIT CB MODIPALM KAPASITAS 8 TON/JAM
A ripple mill machine is one of the crucial pieces of equipment in the palm oil processing industry to separate oil palm kernels into fruit kernels and shells. One of the key components in this machine is the rotor and ripple plate, which play a role in the process of breaking seeds. This study…
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Artikel Jurnal
POTENSI LIMBAH CANGKANG KERANG SEBAGAI KATALIS HETEROGEN UNTUK PEMBUATAN BIODIESEL
Biodiesel is a potential energy source that has attracted attention recently because it can be produced from renewable energy sources and produces low pollutants. Biodiesel is produced by transesterifying edible or non-edible vegetable oils using a catalyst. Homogeneous catalytic processes have…