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All Journal Jurnal Sains dan Teknologi Jurnal Teknologi Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Jurnal Teknologi Rekayasa Mesin Jurnal Mechanical Jurnal Rekayasa Mesin Turbo : Jurnal Program Studi Teknik Mesin CARADDE: Jurnal Pengabdian Kepada Masyarakat Energi & Kelistrikan Jurnal Teknik Mesin Indonesia Jurnal Surya Teknika Unri Conference Series: Community Engagement Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse) METAL : Jurnal Sistem Mekanik dan Termal SAINSTEK Aceh International Journal of Science and Technology Jurnal Polimesin Prosiding SNTTM
Rahmat Iman Mainil
Universitas Riau
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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Potensi Air Kondensat Sebagai Media Pendingin Untuk Aplikasi Modul Evaporative Cooling Terhadap Performansi AC Split 1 PK Muhammad Rif’at Syahnan; Azridjal Aziz; Rahmat Iman Mainil
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Air Conditioning (AC) machines with standard vapor-compression cycle has higher energy consumption, because the condenser is directly cooled by outside air. The condensate from evaporator has a temperature around 10-15°C. This study is determined the potential of evaporative cooling by using the condensate as a cooling medium for the condenser of incoming air cooler. This study used experimental method by testing of the effect of water condensate usage with the performance of standard of vapor compression cycle. The results showed that the using of Evaporative Cooling (EC) can reduce the incoming air into the condenser with an average temperature of 29.14 ° C (without cooling load) and 30.96 ° C (with 2000 W of cooling load). Then, the average working of the compressor without cooling load, before using EC was 0.60 kW and after using EC of 0.55 kW. A given cooling load of 2000 W was revealed an average working of compressor of 0.63 kW (without EC) and 0.59 kW (with EC). The compressor works decreased due to the using of an evaporative cooler.Keywords: Evaporative cooling, Condensate, Compressor work.
Pengujian Thermoelectric Generator (TEG) Dengan Sumber Kalor Electric Heater 60 Volt Menggunakan Air Pendingin Pada Temperatur Lingkungan Nugrah Suryanto; Azridjal Aziz; Rahmat Iman Mainil
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Thermoelecric is a phenomena to convert from temperature difference into electrical energy that can be called Thermoelectric Generator (TEG) or from electrical energy into temperature difference that is called Thermoelectric Cooling (TEC). The Thermoelectric Generator (TEG) principle is known as the seebeck effect, while the Thermoelectric Cooling (TEC) principle is known as peltier effect. The purpose of this research to determine the effect of thermoelectric module number on maximum power, maximum voltage and maximum efficiency. This research uses thermoelectric module, type TEG SP 1848. The cold side of thermoelectric module uses water at ambient temperature with flow rate 1.7 liter / minute. With a input voltage regulator of 60 V to heat the electric heater. From the test using 1 module, 2 module, 3 module, and 4 module thermoelectric type TEG SP 1848, the maximum voltage of 0.39 V, 0.47 V, 0.54 V, and 0.62 V, the maximum power generated of 0.032 W, 0.082 W, 0.164 W, and 0.272 W and the maximum efficiency of 0.36%, 0 .42%, 0.92%, and 1.30%. The more number of thermoelectric modules used during the test, the resulting voltage, power and efficiency will increase.Keywords : thermoelectric generator, seebeck effect
Efek Penggunaan Water Mist Terhadap Tekanan, Temperatur dan Kinerja Sistem Mesin Pengkondisian Udara Tipe Terpisah Azridjal Aziz; Bungsu Herwanto; Rahmat Iman Mainil
METAL: Jurnal Sistem Mekanik dan Termal Vol 3, No 2 (2019)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (648.17 KB) | DOI: 10.25077/metal.3.2.101-108.2019

Abstract

The air conditioning machine commonly used is air conditioning system with a vapor compression cycle. The use of air conditioning machines consumes more electrical energy than other household appliances. In this study, the addition of the water mist method in evaporative cooling system with variations of distance of 20 cm, 40 cm, 60 cm so that the energy consumption of split type AC (Air Conditioning) of machines is more efficient. The results showed that the pressure of the condenser using water mist was lower 48 Psig than the pressure of condenser with a cooling load of 2000 W, and lower by 34 Psig of the pressure of condenser without the cooling load. Meanwhile the temperature of the air entering the condenser (Tout) after using a water mist has lower temperature than without the water mist, therefore it can save electricity consumption in the compressor. The temperature of the lowest inlet air of the condenser reached at the use of water mist with a distance variation of 60 cm was 28 ℃. And the relative humidity (RH)  relatively decrease at the exit  of the condenser using water mist with distance variation of 60 cm length was 59.6%. The compressor power decreased lower using a 60 cm distance water mist of 0.52 kW compared to without using a water mist with a 2000 W load of 0.56 kW. So that COP using water mist higher about 5.24 than without a water mist of 4.72. The highest COP was obtained using water mist at a distance of 60 cm
Komparasi Output Termoelektrik Generator ( Kuat Arus Dan Tegangan ) Pada Jalas Aspal Dan Beton Dengan 3 Variasi Bentuk Plat Tembaga Luthfi Afiif Yazu; Rahmat Iman Mainil; Azridjal Aziz
Energi & Kelistrikan Vol 14 No 1 (2022): Energi dan Kelistrikan: Jurnal Ilmiah
Publisher : Sekolah Tinggi Teknik PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33322/energi.v14i1.1353

Abstract

Solar radiation heat energy is energy that propagates throughout the earth's surface and is absorbed stored in various objects on the earth's surface. A thermoelectric generator is an electrical generator device that converts heat (temperature difference) directly into electrical energy, using a phenomenon called the Seebeck effect. In this research, this research was carried out by utilizing the absorption of solar radiation heat on a concrete road with a type of cast concrete class III with K 250 and asphalt type AC-WC as a thermoelectric generator. This research uses 3 thermoelectric generator modules type 1848 which will be arranged in series, the cooling system is filled with water using 2 asphalt and concrete variables, each of which has three variations of L, I and Z-shaped heat conductor plates. The test results show that asphalt has energy larger than concrete. L plate is the best plate on both asphalt and concrete roads. This research allows it to be developed to become a reference source of the latest alternative energy. Keywords: Heat Energy, Thermoelectric generator, Plate variation
PERANCANGAN DAN PENGUJIAN MESIN CENTRIFUGAL CASTING UNTUK PEMBUATAN KERAMIK TUBULAR Rahmat Iman Mainil
Sainstek (e-Journal) Vol. 2 No. 2 (2014)
Publisher : Sekolah Tinggi Teknologi Pekanbaru

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Abstract

entrifugal Casting Machine is a tool that is used to form the ceramic suspension compacted in the mold by utilizing centrifugal force. Design and manufacture of centrifugal casting machines have been successful. Planning theory, analysis and design of appropriate calculation. Mold are mounted on a rotating mold holder with a speed of 20003000 rpm. This machine can be used to produce ceramic products using a small tubular shaped. Ceramic produced in this study using a centrifugal casting machine has 56.8 flexural strength 2 (kg/cm ), the shrinkage of 1.48%, water ab- sorption 20.75%, porosity 29.52% . SEM showed tubular ceramic possessed uniform density and uniform pore size distribution.
Design of Portable Beverage Cooler Using One Stage Thermoelectric Cooler (TEC) Module Azridjal Aziz; Rahmat Iman Mainil; Afdhal Kurniawan Mainil; Sayfri Syafri; Muhammad Faizal Syukrillah
Aceh International Journal of Science and Technology Vol 6, No 1 (2017): April 2017
Publisher : Graduate Program of Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (853.702 KB) | DOI: 10.13170/aijst.6.1.5427

Abstract

The Portable Beverage Cooler (PBC) has been designed to satisfy the need of cooler apparatus that could be carried easily. The utilization of this apparatus was intended to minimize the environmental damage affected by vapour compression refrigeration system using CFCs Refrigerant. The peltier effect from thermoelectric module was utilized in this PBC and called as Thermoelectric Cooler (TEC). Furthermore, heat-sink and fan were needed to ensure the cooling effect continously worked. To achieved the objectives of this machine (portable, environment-friendly, low watt, affordable), the design consideration are heat load, insulating material, weight of components, electric consumption, and dimension of the cooling box.  The results of the design shows the PBC cooling box dimension is 6 cm x 6.5 x 15 cm. The insulation of the PBC cooling box are polyurethane foam and polystyrene expanded with thickness 6 mm and 5.3 mm, respectively. The alumunium plate was applied as inner wall to enhance the cooling capacity of cooling room temperature. In this PBC was used one stage of TEC that could yield cooling room temperature until 15 oC in 30 minutes operation by consuming 20 W of electricity. 
Perancangan Kotak Pendingin dan Pemanas Mengggunakan Modul Thermoelectric Cooling Sebagai Sumber Kalor Azridjal Aziz; Dani Ikhsan Putra; Afdhal Kurniawan Mainil; Rahmat Iman Mainil
JURNAL MECHANICAL Vol 13, No 1 (2022): Maret 2022
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/mech.v13.n1.202201

Abstract

Modul thermoelectric cooling (TEC) adalah salah satu jenis pompa kalor berbentuk padatan (solid-state) yang membutuhkan penukar kalor untuk membuang kalor sebagai efek Peltier. Termoelektrik dapat memanaskan dan mendinginkan hanya dengan membalikkan polaritas, yang mengubah arah perpindahan kalor. Sisi yang dingin dapat digunakan sebagai pendingin dan sisi yang panas dapat digunakan sebagai pemanas. Penelitian ini bertujuan merancang kotak pendingin dan pemanas yang memanfaatkan modul termoelektrik sebagai sumber kalornya dengan menentukan daya yang dibutuhkan dan pemilihan rancangan terbaik. Tahapan pemilihan rancangan kotak pendingin dan pemanas (cool and hot box) adalah melakukan analisa beban kalor, perbandingan massa, perbandingan daya listrik, dan jumlah modul TEC yang digunakan, untuk menentukan desain optimum kotak pendingin dan pemanas. Hasil rancangan diperoleh ruang kotak pendingin dan pemanas dengan dimensi: 0,26 m x 0,20 m x 0.15 m dengan ketebalan polyurethane foam 25,7 mm sebagai isolator kotak  pendingin, dan ketebalan 15,3 mm untuk isolator box pemanas. Daya yang dibutuhkan untuk mendinginkan minuman selama 30 menit dengan target temperatur ruang pendingin 15 ℃ adalah sebesar 86,07 W
Design and Manufacture of Portable Screw Turbine of Pico Hydro Power Plant for Road Lighting in Rural Area Nofriadi Nofriadi; Azridjal Aziz; Rahmat Iman Mainil
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 67 No 1 (2023): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36842/jomase.v67i1.330

Abstract

This study aims to design and manufacture a portable screw turbine of pico hydro power plant for road lighting in rural area. The portable screw turbine has the specifications of a turbine diameter of 23 cm, length of 1 m, number of threads of 5, shaft diameter of 6 cm and pitch of 22 cm. This screw turbine was tested by varying several turbine tilts angles, namely 15°, 30°, 45° and 60° with a flow rate used of 0.0054 m3/s. In field test was carried out at an angle of 30° with a flow rate of 0.125 m3/s. The test results show the angle of inclination of turbine affects the mechanical performance. Testing the 45° angle produced a mechanical power of 18.857 Watts with an efficiency of 35.669%. In the field testing was produced a generator power of 4 Watts. This screw turbine is expected to be another alternative as a pico-hydro scale power plant.
PEMBANGKIT ENERGI LISTRIK MEMANFAATKAN PENYERAPAN PANAS JALAN BETON MENGGUNAKAN TEKNOLOGI TERMOELEKTRIK GENERATOR (TEG) DENGAN PELAT PENYERAP TEMBAGA BERBENTUK I Nurman Saputra; Rahmat Iman Mainil; Azridjal Aziz
Jurnal Teknologi Vol 15, No 2 (2023): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.15.2.325-336

Abstract

Heat energy is energy that can be easily found in our daily lives, starting from the heat provided by nature, namely from the sun's heat, heat from chemical reactions, and heat generated by mechanical friction. If this heat energy can be converted into electrical energy, of course it will be able to help meet the increasing energy needs. Thermoelectric generator is a technology that can convert heat energy into electrical energy based on the seebeck effect. This research was carried out by utilizing the absorption of solar radiation heat on a concrete road with class III cast concrete type with K 450 as a thermoelectric generator placed on a medium with dimensions (550 x 300 x 100) mm. The research used 3 modules of thermoelectric generator type SP 1848 arranged in series, a heat sink filled with water and a copper plate in the form of I as an absorbent plate and heat transfer from concrete to TEG. The results of the tests conducted show that the maximum power generated in the concrete produces a power of 14.88 mW with a maximum solar radiation intensity of 1107 W/m2 and the largest temperature difference is 6.7 °C. By looking at the power generated continuously, this research allows it to be developed as an alternative energy.
Design of photovoltaic/thermal (PV/T) with heat pipes as a heat transfer medium used for water heater Rahmat Iman Mainil; Afdhal Kurniawan Mainil; Azridjal Aziz; Faisal Afif
Jurnal POLIMESIN Vol 21, No 2 (2023): April
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i2.3298

Abstract

One of the main obstacles for developers and users of photovoltaic (PV) modules is that the module temperature is too high due to high solar radiation and a higher ambient temperature, which reduces PV efficiency. A photovoltaic/thermal (PV/T) system is a technique developed for absorbing heat, that combines PV with a solar thermal collector (STC). In this research, heat pipes are used as the heat transfer medium. This paper aims to design a PV/T system for water heating and examines the thermal performance and water temperature that can be achieved by PV/T. In designing PV/T, the method used is to estimate the intensity of solar radiation and determine the size of the thermal collector, thermal insulation, type of working fluid, and heat pipe filling ratio. The PV/T thermal performance is also tested after the system design has been built. The design parameters that have been obtained are the PV area of 0.67 m2 and the volume of heated water of 20 liters. This design proposes water as the working fluid of the heat pipe with a filling ratio of 10%. The system performance indicates that PV/T could heat the water to 50.9 °C with energy absorbed by the water of 1.85 MJ, and the maximum thermal efficiency of PV/T is 27.14%. The results show that PV/T has a very promising future in terms of its ability to use heat energy and can be further developed for future research so that it can encourage people to use environmentally friendly renewable energy
Co-Authors Abd. Rasyid Syamsuri Adha, Aidil Adi Hans Purba Adriyandy, Warits Adriyus putra Afdhal Kurniawan Mainil Ahmad Surya Ahmad Wisnu Sulaiman Anggriawan, Akbar Anita Susilawati Atria Martina Aulian Samri Auliaswan, Fayzil Awaludin Martin Aziz, Azdrizal Azridjal Aziz Banjarnahor, Syahdi Fahala Bungsu Herwanto Cahyati, Wulan Dani Ikhsan Putra Darfia, Novreta Deni Kurniawan Dicky Ikhwandi Eigko Malau Eko Saputra Faisal Afif Faisal Tanjung Farida Isroani Ferly Septian Iskandar Fuad, N Gihon Matondang Giri Saputra Gontor Andrapica Gordon HTTM Hasra Rafika Helmizar - Hendra Abdul Aziz Hendrik Syahputra Henni Syawal Herisiswanto ' Herisiswanto, Herisiswanto Irwandi Hidayat Izzuddin Ali Raja Siregar, Izzuddin Ali Raja Izzudin Ali Raja Siregar Jenvrizen, David KHOIRUL ANAM Khotso Sai Listiono, Hendra luthfi afiif yazu Muh Wira Tri Kusuma, Muh Wira Tri Muhammad Faizal Syukrillah Muhammad Faizal Syukrillah, Muhammad Faizal Muhammad Ilham Muhammad Rif’at Syahnan N. Nazaruddin Nasution, Fikri Fahlevi Nofriadi Nofriadi Novreta Ersyi Darfia NST, Berriansyah Cipta Nugrah Suryanto Nurcholish Windiharto Nurman Saputra Nurul Deswita P. Eko Prasetyo Parija, Iqbal Perima, Yoan Purba, Adi Hans Putra, Rio Ahmad Juliansyah Rahman Asfaranda Renaldi Khaesar Kumara Renhard Niptro G, Renhard Niptro Renhard Niptro Gultom Ridwan Abdurrahman Rizqullah, Ibnu Ruben Siregar Saberina Hasibuan Sarwo Fikri Sayfri Syafri Sihombing, Tikkos Solly Aryza Suprayitno Suprayitno Surya, Ahmad Syafri ' Teguh Irawan Thalal, Thalal Tio Vani Nesri Utari Prayetno Wandi Wahyudi Yandra, Vicky Yoan Perima Yovan Witanto