Claim Missing Document
Check
Articles

Rancang Bangun Sistem Pendingin Adsorpsi Dengan Pasangan Karbon Aktif-Metanol Sebagai Adsorben -Adsorbat Hariyono, Hariyono; Martin, Awaludin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The air conditioning system is used during nowdays is vapor compression system that uses high energy and refrigerant that can damage the ozone layer and global warming increasing. Adsorption cooling system with activated carbon as adsorbent and methanol as adsorbate is expected to replace the vapor compression system that utilizes a high energy, using refrigerants that could potentially damage the ozone layer and the increase of global warming. This study aims to determine the value of COP adsorption cooling system was designed and fabricated. The method used in this research is the design. Method engineering is done for the design, manufacture, and testing of adsorption refrigeration using activated carbon-methanol pair as adsorbent-adsorbate. Based on test data obtained, the lowest temperature of the water coming out of the evaporator is 21.8 °C with the highest temperature change was 2.9 °C and the average water temperature change is 2.31 oC. COP values of adsorption cooling system was designed and fabricated at 0.0439.Keywords : Adsorption, COP, Actiated Carbon, Methanol
Pengeringan Bengkuang Dengan Sistem Pengeringan Beku Vakum (Vacuum Freeze Drying System) S, Awal Januari; Martin, Awaludin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

One of the areas in Riau Province which produce commodity of yam bean is Bukit Payung Village, District of Bangkinang Seberang. Endurance of fresh yam bean is not longer in time, marketing can not spread and low resale value. It required a technology of post-harvest processing to overcome these problems of yam bean. In this study conducted by preservation using vacuum freeze drying method. The amis of these studies are to produce a vacuum freeze drying machine of yam bean; dry yam bean to 90% moisture content lost; studied the effect of vacuum freeze drying process to  the  characteristics  of  vacuum freeze-drying.  The methods used in this research are design methods and experimental methods. Vacuum freeze drying machine of yam bean was successfully made according to the needs of vacuum freeze drying and in accordance with the draft. Based on the test results it can be concluded that the maximum content of water lost  62% is carried by the rapid freezing method. Based on the material  phase change  in  testing, the best method for  the sublimation process is  by kept temperature constant at -5oC. Keywords: vacuum freeze drying, moisture, temperatur, yam bean.
Analisis Eksergi Pada Ruang Bakar Pada Pltg Teluk Lembu 20 MW Miswandi, Miswandi; martin, Awaludin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Performance evaluation of the power plants is used by applying the first law of thermodynamics, but this method can not determine the source of irreversibilities. Irreversibility is the factor that caused a process to be irreversible. it is necessary to used exergy analysis. Performance of gas Turbine power plant is evaluated with exergy analysis is very useful in terms of design, evaluation, optimization and improvement of power plant. The result showed that the highest exergy destruction occurred in the combustion chamber reached 21,98 MW (85,21%) and while compressor is the lowest 3,81 MW(14,79%)Based on the calculation, analysis of exergy can determine magnitude, location of the exergy destruction. These will make it easier to conduct optimizations toincrease efficiencyKeywords: Gas turbine power plant, combustion chamber, exergy destruction
Analisis Energi Gas Engine Siklus Otto Kapasitas 835 KW Syaifudin, Ahmad; Romy, Romy; Martin, Awaludin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5, No 1 (2018): Wisuda April Tahun 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Biogas from Palm Oil Mill Effluent (POME) is one of renewable energy resources that can be used to reduce theuse of fossil energy in satisfying the electricity needs. At biogas power plant, gas engine is an importantcomponent which functions to convert the energy contained biogas into mechanical energy to drive the electricgenerator. Because of its important function, the performance of the gas engine needs to be maintained in orderto remain well operated. In addition to maintaining the performance of gas engine, steps in improving theefficiency of gas engine energy usage also need to be done in order to become more efficient. Efficiency of thegas engine depends on the overall efficiency of cylinders gas engine in order to convert the energy of fuel intowork. Energy analysis is needed to know the efficiency of multi-cylinder gas engine at biogas power plant, so itcan be known the gas engine performance and can be used for further analysis in increasing the efficiency of theuse of renewable energy sources (biogas) in gas engine. The purpose of this research was to know the energy orthermal efficiency of gas engine. Variables used in the analysis were a composition of biogas, flow rate ofbiogas, a temperature of gas mixture entering the gas engine and temperature of exhaust gas. The energyanalysis result showed that the efficiency of all cylinders varies and the greatest energy or thermal efficiency ofgas engine is on 5th and 10th cylinder (56.29%) and lowest in 8th cylinder (56.17%). The average energy orthermal efficiency of gas engine is 56.23%.Keyword : Biogas, Biogas Power Plant, Gas Engine, Otto Cycle, Energy Analysis
DESIGN, MANUFACTURING AND TESTING KINETIC ADSORPTION TEST RIG Ridwan, Abrar; -, Nasruddin; Martin, Awaludin; Firmansyah, Arfie I.
Sistem Informasi Vol 2 No 1 (2011): Jurnal Photon
Publisher : Fakultas MIPA dan Kesehatan Universitas Muhammadiyah Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1043.931 KB)

Abstract

Adsorption on a solid adsorbent is the fundamental processes in the field of separation processes, purification of gases, adsorption cooling, advanced adsorption cooling, and extensive work on hydrogen storage. The understanding of the thermodynamic properties of adsorbent plus adsorbate system is important to analyze. Information concerning the relevant adsorption equilibrium and characterized of adsorbent is generally an essential requirement for the analysis and design of an adsorption separation process. For practical application, theadsorption equilibrium must be known over a broad range of operation temperatures. Also, the isotherms of pure species are fundamental information for dynamic simulation of adsorbers. The main objective of this research is to design kinetic adsorption test rig to investigate the capacity and rate of adsorption on adsorbent and adsorbate pair’s. The result of design kinetic adsorption test rig including dimensions of vapor vessel (pressure vessel) and measuring cell. The volume of vapour vessel is 1000 ml and measuring cell is 100 ml. Kinetic adsorption test rig was manufactured to investigate capacity and rate of adsorption up to 40 bar.
METHANE STORAGE PADA KARBON AKTIF PADA TEMPERATUR 27oC, 35oC dan 65oC Martin, Awaludin; Suryawan, Bambang; Alhamid, M. Idrus; Nasruddin, Nasruddin
Ketenagalistrikan dan Energi Terbarukan Vol 9, No 1 (2010): KETENAGALISTRIKAN DAN ENERGI TERBARUKAN
Publisher : P3TKEBTKE

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Sistem adsorbed natural gas (ANG) adalah metode distribusi bahan bakar gas yang lebih baik dibandingkan dengan menggunakan compressed natural gas (CNG) hal tersebut dikarenakan ANG menggunakan sistem penyerapan (adsorption system) yang hanya membutuhkan tekananpenyimpanan sekitar 4 MPa. Pada rancangan untuk aplikasi sistem adsorpsi seperti pada penyimpanan gas alam, disamping data karakteristik adsorben seperti luas permukaan dan volume pori, data penyerapan adsorbat pada adsorben juga dibutuhkan. Penelitian ini dilakukan untuk mendapatkan data kapasitas penyerapan CH4 pada karbon aktif sebagai adsorben dengan menggunakan metode volumetrik pada tekanan sampai dengan 3,5 MPa dan pada temperatur 27oC,35oC dan 65oC. Kapasitas penyerapan maksimum pada karbon aktif KT adalah 0.05138 kg/kg pada temperatur 27oC dan tekanan equilibrium 3495,75 kPa. Data eksperimen dianalisis dengan menggunakan model Langmuir dan Toth. Hasil regresi data eksperimen dengan menggunakanmodel Langmuir dan Toth adalah 3,45% dan 2,72% untuk karbon aktif komersial dan 3,95% dan 2,78% untuk karbon aktif KT.
Perancangan Bilah Tipe Inverse Taper Pada Turbin Angin Berdasarkan Kondisi Angin Di Pekanbaru Hatta, Muhammad; Martin, Awaludin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The increasing consumption of fossil fuels as energy source of the world cause a decrease in a number of fossil fuels. Wind energy as one of renewable energy resource has a great potential to solve the problem of dependency on fossil fuels, especially in Pekanbaru, Indonesia. Pekanbaru wind speed condition which is considered relatively low can be harnessed efficiently by designing blades which suits wind characteristics in Pekanbaru.  Blades are designed using aerodynamic equations and  software assistance such as Microsoft Excel, Qblade, and Autodesk Inventor. As a result, the blades had a solid structure, easily in manufacturing and affordable which can generate mechanical power at low wind speeds with a radius 1,1 m and hub 0,2 m and the chord length  at the base of  the blade 0,13 m and at the tip 0,26 with twist angle at the base of the blade 20,4  and at the tip 5,6  . The result of this research is to show that the inverse taper blade design is applicable in low wind speed conditions in order to produce an affordable, compact, and efficient wind turbine appropriate for wind characteristic in Pekanbaru. Keyword : Chord, Twist Angle, Blades, Inverse Taper, Wind Turbine
Perancangan Dan Pembuatan Evaporator Pada Sistem Organik Rankine Cycle (ORC) Menggunakan Fluida Kerja R-134A Untuk Pembangkit Listrik Kapasitas 1 KW Okvitasari, Dwi Yani; Martin, Awaludin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Waste heat from industries such as steam power plants can be utilized to meet the world’s electricity need. However, it cannot be converted efficiently to electric power by using conventional power generation methods, a technology for converting it is called Organic Rankine Cycle (ORC). ORC is one of the power plant systems that is a modification of Rankine Cycle using organic working fluid. R-134a was used as working fluid. The selection of working fluid was assisted by using Cycle Tempo and REFPROP software which has function to simulation of power plant and determine the thermodynamic properties, respectively. ORC system consisting of four key components: evaporator, turbine, condenser, and pump. In this study, we designed a shell and tube type evaporator, where it is designed from a large cylindrical tube called a shell assembled with a parallel pipe. Flow arrangement of evaporator is parallel-flow. Design of evaporator was 400mm shell length, 360mm shell diameter, 9.525mm OD tube, 8.407mm ID tube, tube length 10.57m, 250mm helical tube diameter, 300mm helical tube height and 13.5 the revolution of tube.Keywords: Organic Rankine Cycle, Design, Manufacturing, R-134a
Rancang Bangun Turbin Angin Sumbu Horizontal Dengan Tipe Bilah Inverse Taper Berbahan Dasar Komposit Serat Tandan Kosong Sawit Damanik, Reinhard Parulian; Agustina, Dinni; Martin, Awaludin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 1 Januari s/d Juni 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Overcome the use of fossil fuel based power plants is improving annually and waste in Indonesia palm that cannot be used again, it is the basis for this research through the planning and manufacturing of wind turbine blades of elementary substance composite fibers of empty palm. As for the wind turbine blades designed to be adapted for areas with low wind speeds, the blade is made with an inverse taper type that can convert wind energy into a rotor round with a large torque. The type of airfoil used is NACA 4415 with increasing the chord thickness percentage by 30%. The result of the calculation, obtained radius blade 1,1m and hub 0,2m with the number of blades 5. In the making of blades, the fibre of empty palm is given alkaline treatment with a 3% NaOH rate of 2 hours. Composites made with 5% fiber content of epoxy resin with the length of fiber used is 30mm. Based on the aerodynamic simulation results using Qblade applications, the blade can generate 318W of power at 7m/s wind speeds with blade rotation speed 120rpm. Keyword: Inverse Taper, Fibre Bunch of Empty Palm
Uji Kinerja Turbin Angin Sumbu Horizontal Dengan Tipe Bilah Inverse Taper Dengan Jari-Jari 1,3m Pada Kecepatan Angin Di Pekanbaru Sibuea, Edwin Reinaldy; Agustina, Dinni; Martin, Awaludin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 1 Januari s/d Juni 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The increasing needs of electrical energy and the limited amount of fossil fuel that keep reducing give a huge effect to the enhancement of renewable wind energy to grows rapidly, one of it is wind turbine. The purpose of this research is to study the performance of horizontal axis wind turbine with inverse taper blade. The wind turbine is place on a building with ±15m. The output power is measured under loading condition with 4.37 kg load. Acquired data were wind velocity, air temperature, constant load, and the shaft rotation speed. The result of the power test is 0.49 watt under wind velocity of 2.92 m/s and Tip Speed Ratio (TSR) 0.056 Keyword: Wind turbine, wind speed, inverse taper, TSR
Co-Authors Abrar Ridwan Adam Maulana Ibra Agustina, Dinni Ahmad Syaifudin Aldi Ansyah Kurniawan Lubis Andika Anuar, Kaspul Arfie I. Firmansyah Arifful Rahman Awal Januari S Bambang Suryawan Bambang Suryawan, Bambang Benny Wahyudi Benny Wahyudi Binsar Martua Parulian Manurung Brama, Jaka Clinton Naibaho Damanik, Reinhard Parulian Dhewaji, Roe Dwi Dhiki R. A. Dhiky Rahman Agusta Dodi Sofyan Arief Doni Saputra Fachri Husaini Fadilla Augusli Irwanda Faisal Afif Fakhru Rozi Z Fharozi, Ridho Fikri Fahlevi Nasution Fikri Fahlevi Nasution Firmansyah, Arfie I. Hamdani Wahab Hamdani Wahab Hariyono Hariyono Harun Orion Ibrahim Ibrahim Irfandi Pratama Ivand Hintingo Iwan Kurniawan Jefri Ramadan Johannes Panjaitan Jossy Kolata Krist Mamre Saragih M. Idrus Alhamid Meitri Nelta Mintarto Mintarto Miswandi, Miswandi Moh. Arief Indra Permana Mohamad A Muhidin Mohammad Barbarosa Mohammad Barbarosa Muhammad Alhamid Muhammad Alhamid, Muhammad Muhammad Hatta Muhammad Idrus Alhamid, Muhammad Idrus Muhammad Nur Muhammad Nur Ahmad H Mustafa Akbar N. Nazaruddin Nasruddin - Nasruddin - Nasruddin Nasruddin Nasruddin Nasruddin Nasruddin Nasruddin Nehemia Simangunsong Nur Indah Rivai Nur Indah Rivai Okvitasari, Dwi Yani Paulus, Hendri Pipin Azrin Pither Palamba Putra, Adipa Putri Nawangsari Putri Nawangsari Putri Wahyuni Reza Asrian Romy Romy Rudi Hartono Samuel Siregar Sibuea, Edwin Reinaldy Sitompul, Nathaniel Andrew Sahala Stevan Graciano Boyana Tino Ferinando GS Tomi Sinaga Tri Bambang Lesmana Warman Fatra Windy Lusia Samosir Yogi Wibowo Agusta Yogi Wibowo Agusta Yogie Rinaldy Ginting