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<![CDATA[ANALISIS NILAI TAMBAH NATRIUM LAURAT DAN KALIUM PALMITAT SEBAGAI BAHAN BAKU FOAMING AGENT PEMADAM KEBAKARAN ]]>
<![CDATA[Purwo Subekti]]>;
<![CDATA[Erliza Hambali]]>;
<![CDATA[Ani Suryani]]>;
<![CDATA[Prayoga Suryadarma]]>;
<![CDATA[Bambang Hero Saharjo]]>
<![CDATA[ Jurnal Teknologi Industri Pertanian Vol. 30 No. 3 (2020): Jurnal Teknologi Industri Pertanian ]]>
Publisher : <![CDATA[Department of Agroindustrial Technology, Bogor Agricultural University ]]>
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DOI: 10.24961/j.tek.ind.pert.2020.30.3.355
<![CDATA[The calculation of the added value of using a foaming agent based on sodium lauric and potassium palmitate for palm oil as a peatland fire suppression needs to be studied. This was to determine prospects for further development because it is predicted that peatland fires will continue to recur every year during the dry season. The Hayami method used to analyze the added value of sodium lauric and potassium palmitate as the primary raw materials for foaming agents. The results showed that the production of foaming agents for peatland firefighting applications made from sodium laurate and potassium palmitate of palm oil provided added value with positive criteria, i.e. the ratio of value-added criteria was 80.87% (> 0). In addition to that, the business also provided high-profit categories because the added value category ratio was 80.87% (> 40%). From the analysis of remuneration, it was produced that the foaming agent production business was a capital-intensive since the contribution of the labour income value was 0.89%, other expenses contributed 3.73% and the profit from the entrepreneur as the owner capital of 95.37% which was the largest contribution in providing profit margins. However, the development of a foaming agent production business based on palm oil fatty acids will add new jobs and create new economic impacts in the area of the business locations as well as to increase the amount of palm oil derivative products. Keywords: added value, foaming agent, sodium lauric, potassium palmitate, palm oil]]>
<![CDATA[PENGARUH PENGGUNAAN MEDIA PENYERAP GAS BUANG PADA ALAT PENGENDALI PENCEMARAN UDARA UNTUK KENDARAAN BERMESIN DIESEL ]]>
<![CDATA[Purwo Subekti]]>
<![CDATA[ Jurnal APTEK Vol. 1 No. 1 (2009): APLIKASI TEKNOLOGI ]]>
Publisher : <![CDATA[Universitas Pasir Pengaraian ]]>
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DOI: 10.30606/aptk.v1i1.5
<![CDATA[Air pollution that was caused by motorized vehicle, which came from the emission of the vehicle, has produced bad impact on human health. This study has objectives to study the effect of the application of air pollution control device, whice was equipped with fiber optic, glass wool and active carbon, to emission of diesel motor vehicles. That control device was place on Mitsubishi Colt Diesel PS 100 car.The results of this study has indicated that air pollution control device that used fiber optic, glas wooll and active carbon component had the best performance to absorb Diesel motor vehicle’s emission. It could be seen by the reduction of O2 value, the reduction of CO2 value and smoke, whereas HC was not performed.]]>
<![CDATA[KAJIAN KERETAKAN DRUM BAGIAN ATAS PADA KETEL UAP PIPA AIR ]]>
<![CDATA[Purwo Subekti]]>;
<![CDATA[Sunarno -]]>
<![CDATA[ Jurnal APTEK Vol. 2 No. 1 (2010): APLIKASI TEKNOLOGI ]]>
Publisher : <![CDATA[Universitas Pasir Pengaraian ]]>
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DOI: 10.30606/aptk.v2i1.12
<![CDATA[Boiler tube basically consists of (drum), which closed at the end of the trial stem, where on the inside of the drum there are pipes that serves to drain water or hot gases. In boiler operations are expected not to crash (damage) but the fact is still an interruption in its operations, this led to the cessation of company activities that result in the loss to be borne by the company. The purpose of this study was to analyze the condition of the boiler drum upper material that has been operating in the intervening 10 years. Microstructural examination showed that the damage (cracks) that occur are due to stress corrosion cracking (SCC), as characterized by the formation of the branched cracks (cracks braching). Factors cause of SCC is the tensile stress flow equally with corrosive environment. Residual voltage source is from the welding process in the boiler drum during plugging. In addition, residual stress may also occur due to the influence of corrosive environment forming. And cold, is caused by the influence of boiler feed water. SCC due to KOH (caustic) can be avoided by not doing the welding in the drum, and adjust the pH to be safe areas.]]>
<![CDATA[ANALISA KERUSAKAN SHORT DRIVE SHAFT KEMPA ULIR PADA PABRIK KELAPA SAWIT ]]>
<![CDATA[Purwo Subekti]]>
<![CDATA[ Jurnal APTEK Vol. 3 No. 1 (2011): APLIKASI TEKNOLOGI ]]>
Publisher : <![CDATA[Universitas Pasir Pengaraian ]]>
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DOI: 10.30606/aptk.v3i1.35
<![CDATA[Kempa ulir (screw press) digunakan untuk memisahkan minyak kasar (crude oil) dari adonan daging buah (mesocarp) kelapa sawit, sehingga dihasilkan minyak kelapa sawit atau Crude Palm Oil (CPO). Short drive shaft adalah bagian dari kempa ulir yang berfungsi untuk meneruskan daya dari speed reducer ke worm screw. Pada saat beroperasi, short drive shaft terjadi patah pada daerah fillet.Tujuan penelitian adalah untuk menentukan penyebab terjadinya kerusakan pada short drive shaft dan mencegah tejadinya kerusakan yang sama di waktu mendatang. Penelitian terdiri dari pemeriksaan visual dan pengujian di laboratorium, meliputi uji metalografi, fraktografi, kekerasan, tarik, komposisi kimia dan simulasi tegangan.Dari data hasil pengujian didapat kesimpulan bahwa kerusakan short drive shaft diakibatkan oleh terjadinya konsentrasi tegangan pada daerah alur pasak yang menyebabkan pasak menjadi longgar sehingga worm screw mengalami rotating bending. Selama beroperasi, kejadian tersebut terus menerus berulang dan terjadi kelelahan pada short drive shaft,yang berlanjut menjadi retak awal pada permukaan fillet terus menjalar ke dalam dan akhirnya patah.]]>
<![CDATA[PERHITUNGAN KOMPARASI ENERGI BAHAN BAKAR SEKAM PADI DENGAN MINYAK TANAH ]]>
<![CDATA[Purwo Subekti]]>
<![CDATA[ Jurnal APTEK Vol. 4 No. 1 (2012): APLIKASI TEKNOLOGI ]]>
Publisher : <![CDATA[Universitas Pasir Pengaraian ]]>
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DOI: 10.30606/aptk.v4i1.54
<![CDATA[Utilization of rice husk as a fuel substitute alternativ kerosene using rice husk stove is a technology based on local wisdom to anticipate the threats of energy crisis, as one of the replacement of fuel oil. Comparative analysis of rice husk stove with kerosene stove will produce a comparison of how the conclusions, ability and energy efficiency in cooking. From the analysis of the efficiency of kerosene stove showed a better value than a stove fueled by rice husks. However, the ability of rice husk energy as an alternative fuel in a fuel oil substitute very effectively developed for household, small and medium industries, especially in rural areas, it is based on the price of rice husk is much cheaper than kerosene.]]>
<![CDATA[PERENCANAAN INSTALASI PENGOLAHAN AIR BERSIH DENGAN SARINGAN PASIR LAMBAT “UP FLOW” DI KAMPUS UNIVERSITAS PASIR PENGARAIAN KABUPATEN ROKAN HULUPROPINSI RIAU ]]>
<![CDATA[Purwo Subekti]]>;
<![CDATA[Anton Ariyanto]]>;
<![CDATA[Frans Yadi Simamora]]>
<![CDATA[ Jurnal APTEK Vol. 4 No. 2 (2012): APLIKASI TEKNOLOGI ]]>
Publisher : <![CDATA[Universitas Pasir Pengaraian ]]>
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DOI: 10.30606/aptk.v4i2.59
<![CDATA[Until this this day the proper water consumption supply problem at the Pasir Pengaraian University campus still continues. The need for clean water is one of the contributing factors that can not be ignored for the smoothness activity of the campus environment. By not proper the water, directly impacting to activities support on campus will be distrubed. For the treatment of raw water to water consumption required inexpensive technology for water treatment, the installation of Slow Sand Filter (SSF) Up Flow is an alternative that can be used.From the research results can be determined a maximum daily requirement per day is 17.03 m³ / h, discharge of raw water in the pool is 76.65 m³ / h, the surface area of pool water sources is 191, 63 m², SSF tub surface area is 63.88 m² and budget plan is needed to create a pool of water sources and the SSF is Rp. 87.926.300]]>
<![CDATA[Kebijakan Energi Baru-terbarukan Serta Peluang Pemanfaatan Biogas dan Biomasa Limbah Pengolahan Kelapa Sawit untuk Pembangkit Tenaga Listrik Di Propinsi Riau ]]>
<![CDATA[Eddon Mufrizon]]>;
<![CDATA[Purwo Subekti]]>
<![CDATA[ Jurnal APTEK Vol. 5 No. 1 (2013): APLIKASI TEKNOLOGI ]]>
Publisher : <![CDATA[Universitas Pasir Pengaraian ]]>
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DOI: 10.30606/aptk.v5i1.67
<![CDATA[This paper discusses the government's policy on the development of new energy-renewable and its relation to the utilization of palm oil waste in the form of biogas and biomass for power generation. Riau Province has a backup source of energy Biogas and Biomass from palm oil waste considerable. Biogas untapped in millers (MCC) reached 112MW, while the biomass of 905.8 MW. When this energy source utilized, can increase the electrification ratio, especially for rural areas (remote areas) reached 4.4% of the biogas and 36% of the biomass. Meanwhile, Electrification Ratio Riau Province in 2010 amounted to 43.27%, below the national average that has reached 65%. Development of Biogas PLTMG-sufficient financially beneficial to the period of return (payback period) for 6 years. Strategies needed to implement it through a few patterns involving PKS companies and / or investors and PT. PLN is facilitated by the Regional Government of intensive and consistent]]>
<![CDATA[AUDIT ENERGI DAN ANALISA PELUANG HEMAT ENERGI PADA BANGUNAN GEDUNG PT. X ]]>
<![CDATA[Derry Septian]]>;
<![CDATA[Joko Prihartono]]>;
<![CDATA[Purwo Subekti]]>
<![CDATA[ Jurnal APTEK Vol. 5 No. 2 (2013): APLIKASI TEKNOLOGI ]]>
Publisher : <![CDATA[Universitas Pasir Pengaraian ]]>
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DOI: 10.30606/aptk.v5i2.83
<![CDATA[From the research that has been conducted on energy audits in buildings PT. X, to know the profile of energy use and energy savings opportunities, so it can be more efficient and save costs. From the initial energy audit have been implemented acquired Energy Consumption Intensity (IKE) to the total area is still under IKE standards for office buildings. For air-conditioned room is not air conditioned and acquired Energy Consumption Intensity (IKE) is low so as very efficient. By replacing energy-efficient appliances, then there is a chance of saving energy]]>
<![CDATA[PERHITUNGAN BEBAN PENDINGINAN INSTALASI TATA UDARA SISTEM FAN COIL CHILLED WATER DI GEDUNG SHOWROOM MOBIL JAKARTA ]]>
<![CDATA[Andri Setiawan]]>;
<![CDATA[Joko Prihartono]]>;
<![CDATA[Purwo Subekti]]>
<![CDATA[ Jurnal APTEK Vol. 6 No. 1 (2014): APLIKASI TEKNOLOGI ]]>
Publisher : <![CDATA[Universitas Pasir Pengaraian ]]>
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DOI: 10.30606/aptk.v6i1.88
<![CDATA[Air conditioning for the building to be used as a car showroom in Jakarta is one thing that is needed to provide comfort and freshness to the workers so that the quality and quantity of work produced optimal . The cooling load can be influenced by various factors , among others : the weather , the condition of the building , the building volume , the shape of the building structure and the building materials used , the amount of ventilation air required , the function of the building , number of occupants , condition the outside air , indoor air conditions .]]>
<![CDATA[ANALISA PROKSIMAT DAN NILAI KALOR PADA BRIKET BIOARANG LIMBAH AMPAS TEBU DAN ARANG KAYU ]]>
<![CDATA[Eddy Elfiano]]>;
<![CDATA[Purwo Subekti]]>;
<![CDATA[Ahmad Sadil]]>
<![CDATA[ Jurnal APTEK Vol. 6 No. 1 (2014): APLIKASI TEKNOLOGI ]]>
Publisher : <![CDATA[Universitas Pasir Pengaraian ]]>
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DOI: 10.30606/aptk.v6i1.91
<![CDATA[In this study, waste of bagasse and wood charcoal was converted into charcoal briquettes to be used as an alternative fuel. The bagasse and wood charcoal were selected as raw material to produce briquette due to these two materials was abundantly available and because they have not been used in any application. Moreover, the use of them as briquette and alternative energy will reduce the accumulation of waste that causes environmental pollution. Analysis of proximate test and heating value test showed that the percentage of moisture content of bagasse briquettes withdammar as adhesive is 3.36 to 1.47%, the amount of volatile matter is 36.91 to 30.15%, the ash content is 8.05 to 6.10 % and heating value is 3683.68 to 4520.88 kJ / kg. As for the charcoal briquettes was obtained that percentage of moisture content is 3.25 to 1.36 %, content of volatile matter is 34.55 to 26.53%,ash content is 6.36 to 5.37%, and heating value is 3934.84 to 5274.36kJ/kg.]]>
