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All Journal Jurnal MEKANIKAL Jurnal Teknologi Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains
Azridjal Aziz
Jurusan Teknik Mesin Universitas Riau
Computer Science & IT Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Pengujian Mesin Pendingin Minuman Portable Menggunakan Port USB Dan Adaptor Sebagai Daya Input Syukrillah, Muhammad Faizal; Mainil, Rahmat Iman; Aziz, Azridjal
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

Thermoelectric is one of the cooling technology alternatives other than vapor compression systems. Thermoelectric is used as a cooling media in a portable beverage cooler. This study aims to measure temperature of portable beverage cooler using thermoelectric module with cooling load and without cooling load. The temperature observed were hot side temperature (heatsink), cold side temperature (the inner wall), cooling chamber temperature, ambient temperature, outside wall temperature and water temperature. Experiments had been carried out using an adapter and USB as primary power for 30 minutes. The results reveal that the use of an adapter in the voltage of 12 V provides better cooling. This could be seen after 30 minutes the lowest temperature cooling chamber without cooling load is 9,7 °C, with a cooling load beverage cans of 250 ml is 18,7 °C, with acooling load milk box of 250 ml is 18,4 ° C, and with a cooling load isotonic drink of 140 ml is 14,8 °C.Keywords : Thermoelectric, Portable Beverage Cooler, Peltier Effect, Cooling Load
Analisis Evaporative Air Cooler Dengan Temperatur Media Pendingin Yang Berbeda Listiono, Hendra; Aziz, Azridjal; Mainil, Rahmat Iman
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

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Evaporative cooling process occurs when water vapor is added to air having a relative humidity of below 100%. Relative humidity is a value that is contained in the temperature of the dry bulb and wet bulb temperature of the air. the lower the relative humidity, the greater the potential for evaporative cooling. The research was conducted using the experimental test tools Evaporative Air Cooler Honymell CS12AE. Variables used are temperature cooling medium (water) that is 10, 20, 30, 40, and 500C and the wind speed is (4,57m/s), (3.9 m/s), and (2,93m/s). The data used is the wet bulb temperature and dry bulb temperature on the back of the fan, the temperature of the wet bulb and dry bulb temperature in front of the fan and then the temperature of the wet bulb and dry bulb in the room. Data were taken every 10 minutes for 180 minutes. The test results are temperature cooling medium (water) effect on the relative humidity. The highest humidity is achieved at a temperature of the cooling medium (water) 500C ± 30C and the fan speed ishigh with 92.83% relative humidity. And the lowest humidity was 85.87% at a temperature of 100C ± 30C with a cooling medium high fan speed. Coolant temperature effect on the results of the efficiency and the rate of evaporation of water masses. The highest efficiency on the cooling medium temperature of 100C± 30C with an efficiency of 5.42% with a high fan speed. The highest rate of evaporation of the water mass occur at a temperature of 500C ± 30C cooling medium is 0.00039821 kg/s.Keyword : efficiency, relative humidity, tdb, twb.
Pengaruh Beban Pendinginan Terhadap Temperatur Sistem Residential Air Conditioning Hibrida Dengan Kondensor Dummy Tipe Multi Helical Coil Menggunakan Refrigeran Hidrokarbon Adha, Aidil; Aziz, Azridjal; Mainil, Rahmat Iman
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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One way to save the energy is to improve the energy efficiency with combining two different equipmentsbecome one new double-function or hybrid equipment. Hybrid air conditioning can improve energy efficiency byremoving waste heat to the environment through condenser for heating water. The objective of this experimentalstudy is to investigate the effect of cooling load to system temperature of vapor-compression cycle hybrid airconditioning system with multi helical tipe of dummy condenser. The test was conducted with several coolingload variations (0, 1000, 2000 and 3000 Watt) as residential cooling load simulation. The result showed that therefrigerant temperature while using HCR-22 was obtained about 67.47 °C to 72.93 °C. The temperature ofrefrigerant was increased as well as the applied cooling load to be increased. The temperature of refrigeranthad more heat which to be absorbed and released into the environment so that the produced water temperaturewasalso increased. Hot water temperature of the ACWH system using HCR-22 refrigerant was obtained about41.01-44.96 ˚C.Keywords : hybrid air conditioning, dummy condenser, hydrocarbon refrigerant HCR-22, cooling load.
Pengaruh Katup Ekspansi Termostatik Dan Pipa Kapiler Terhadap Temperatur Dan Tekanan Pada Mesin Pendingin Siklus Kompresi Uap Menggunakan Refrigeran HCR-134A Siregar, Izzuddin Ali Raja; Aziz, Azridjal; Mainil, Rahmat Iman
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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The basic functions of the expansion device in a refrigeration system is to reduce pressure from condenser pressure to evaporator pressure and regulate the refrigerant flow from the high pressure liquid line into the evaporator at a rate equal to the evaporation rate in the evaporator. In this study, the capillary tube and thermostatic expansion valves will be compared to determine the performance of each other. The experiment was conducted with using a vapor compression cycle testing device with HCR-134a refrigerant. The result shows that the average temperature on the testing points using thermostatic expansion valve is lower than the 1,25 m capillary tube except the temperature of compressor in and compressor out. Also the average pressure in the evaporator and condenser using thermostatic expansion valve is lower than 1,25 m capillary tube.Keywords : expansion device, temperature, pressure, HCR-134a
Tinjauan Pengaruh Kondensor Dummy (Tipe Helical Coil, Trombone Coil dan Multi Helical Coil) Terhadap Temperatur Ruangan Dan Temperatur Air Panas Purba, Adi Hans; Aziz, Azridjal; Mainil, Rahmat Iman
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

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This paper provide a review of i.e: temperature achievement three different of dummy condenser. The study review was conducted to know the effect of adding dummy condenser coil type helical, coil trombone and multi helical coil without circulating water to room temperature and the temperature of the hot water. The method used in this review was a comparative method among tree types of dummy condenser i.e: helical coil, trombone coil and multi helical coil. The result comparison showed that the addition of dummy condenser type multi helical coil was better than dummy trombone coil and helical coil types. In the addition of dummy condenser without circulating water with multi helical coil, heated water temperature reached 64.73 oC in 3000 Watt of load. Whilst, the helical coil on the lowest room temperature reached 16.11 oC at the use of no load (19.26 oC on multi helical coil without load).Keywords : Air Conditioning Machines, Dummy Condenser, Cooling Load, Coil, Water Heater.
PERFORMANSI MODULAR CHILLER KAPASITAS 120 TR Aziz, Azridjal; Harianto, Joko; Mainil, Afdhal Kurniawan
Jurnal MEKANIKAL Vol 6, No 1 (2015): JM Vol. 6 No. 1 Januari 2015
Publisher : Jurnal MEKANIKAL

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Abstract

Modular Chiller adalah suatu central Air Conditioning (AC)  yang  terdiri dari beberapa modul yang bekerja bersama-sama untuk membuang panas yang diserap oleh chilled water dari gedung untuk dibuang ke lingkungan. Chiller jenis ini juga merupakan solusi untuk penghematan penggunaan energi listrik karena jumlah unit yang beroperasi dapat menyesuaikan diri dengan beban panas yang dihasilkan gedung yang cenderung berubah-ubah tergantung pada jumlah ruangan yang digunakan, jumlah alat elektronik yang digunakan, jumlah orang yang beraktifitas, dan faktor-faktor beban lainnya. Chiller dioperasikan dengan temperatur acuan 6oC. Hasil analisis menunjukkan bahwa kapasitas pendinginan aktual  (QL) pada evaporator, daya kompresor aktual (Wk)  dan kapasitas panas aktual (QH) yang dibuang di kondensor berturut-turut adalah sebesar 357,5 kW dari total 845 kW kapasitas pendinginan yang tersedia, 66,1 kW dari total  daya kompresor 157 kW, dan 423,6 kW dari total 1002 kW potensi panas yang dibuang dengan COP chiller sebesar 5,4. Kapasitas pendinginan yang tersedia 57,7 % lebih besar dari total kapasitas pendinginan aktual, sehingga lebih dari cukup untuk memenuhi beban pendingin keseluruhan hotel Y, untuk memperoleh kenyamanan termal yang sesuai standar  SNI, 03-6572-2001.
POTENSI PEMANFAATAN ENERGI PANAS TERBUANG PADA KONDENSOR AC SENTRAL UNTUK PEMANAS AIR HEMAT ENERGI Aziz, Azridjal; Harianto, Joko; Mainil, Afdhal Kurniawan
Jurnal MEKANIKAL Vol 6, No 2 (2015): JM Vol. 6 No. 2 Juli 2015
Publisher : Jurnal MEKANIKAL

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Abstract

AC sentral merupakan salah satu jenis mesin pendingin yang banyak dipakai di gedung-gedung bertingkat seperti perkantoran, hotel atau mal. Energi panas yang terbuang dari kondensor pada mesin pendingin, umumnya dibiarkan terbuang begitu saja. Energi panas ini sebenarnya dapat dimanfaatkan untuk keperluan pemanas air yang hemat energi, karena sumber energinya diperoleh secara gratis dari energi panas buang kondensor tersebut. Untuk mengetahui energi panas terbuang yang dapat dimanfaatkan untuk pemanas air tersebut, maka perlu dihitung potensi pemanasannya. Hasil perhitungan dan analisis data yang diperoleh menunjukkan bahwa potensi pemanfaatan energi panas yang terbuang di kondensor yang dapat digunakan sebagai pemanas air adalah sebesar 228,318 kW dengan temperatur masuk kondensor maksimum sebesar 57,78 oC.
TEMPERATUR SISTEM RESIDENTIAL AIR CONDITIONING HIBRIDA PADA PROSES CHARGING DAN DISCHARGING DENGAN THERMAL ENERGY STORAGE Aziz, Azridjal; Herisiswanto, Herisiswanto; Prasetyo, Eko; Mainil, Rahmat Iman
Jurnal Teknologi Vol 8 No 2 (2015): Jurnal Teknologi
Publisher : Jurnal Teknologi, Fakultas Teknologi Industri, Institut Sains & Teknologi AKPRIND Yogyakarta

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Abstract

Penggunaan thermal energy storage (TES) pada residential air Conditioning(RAC) hibrida dapat menghasilkan penghematan pemakaian listrik untuk keperluan penyejuk udara ruangan dan pemanas air. Sisi kondensor didinginkan dengan air pada TES sebagai pemanas air (Hot TES/HTES) dan penyerapan kalor di evaporator dilakukan oleh brine(cairan dengan titik beku dibawah titik beku air 0 oC) yang masih bewujud cair pada temperatur TES sebagai pendingin brineCTES (Cold TES). Pada penelitian ini dilakukan proses Chargingmodedan Dischargingmodepada dua kondisi. Pada chargingmode kondisi 1, proses chargingdilakukan selama 220 menit untuk mendinginkan brine di ice storage, diperoleh temperatur ice storageterendah -1,4 oC, sedangkan pada chargingmodekondisi 2 selama 240 menit diperoleh temperatur ice storageterendah -2,4 oC. Temperatur air panas rata-rata diperoleh 57,82 oC dengan temperatur ruang pengering 45,56oC untuk charging modekondisi 1, sedangkan untuk charging modekondisi 2 temperatur air panas rata-rata diperoleh 46,43 oC dengan temperatur ruang pengering 42,29 oC. Discharging modepada kondisi 2 memberikan proses pendinginan selama 270 menit, sedangkan discharging modepada kondisi 1 hanya memberikan pendinginan selama 120 menit.
Temperatur Sistem Pendingin Siklus Kompresi Uap Terhadap Perubahan Beban Pendinginan Dengan Penambahan Kondensor Dummy Sebagai Water Heater Ginting, Hardianto; Aziz, Azridjal; Kurniawan, Iwan
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

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The vapor compression cycle of air conditioning has been used as conditioner in a room to get comfort condition. Conditioning air happened because the heat on room was absorped by evaporator (indoor unit). Usually, heat on condenser will be discarded. The wasted energy in condensor can be used as hot water by adding dummy condenser as complement. The dummy condensor would influence the cooling system temperature of compression cycle with change of cooling load in this research. This research was done experimentally. The result of experiment showed that temperature was about 61.70 0C for 120 minutes in performance. When cooling load was given to room, refrigerant temperature would get higher so that temperature of hot water would be higher too.Keywords : Air conditioning, water heater, dummy condensor, cooling load.
Pengaruh Beban Pendinginan Terhadap Temperatur Sistem Residential Air Conditioning Hibrida Dengan Kondensor Dummy Tipe Trombone Coil Menggunakan Refrigeran Hidrokarbon Thalal, Thalal; Aziz, Azridjal; Mainil, Rahmat Iman
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

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An experimental study in the hybrid air conditioning machine as air conditioner and water heater by retrofitting R-22 with hydrocarbon refrigerant (HCR-22) have been investigated. Drop-in experiments were carried out without any modification on the system. The system has been tested by varying the internal heat load 0, 1000, 2000, and 3000 W for residential cooling load simulation. The measurements taken during two hour experimental periods at 5 minutes interval times for temperature set point of 19°C. Temperature of the system is the objective of this research. The result shows refrigerant temperature of HCR-22 lower than R-22 because differences of compressor discharge pressure. Temperature discharge decrease between 16.22-24.02 ˚C. For conditioned room, room temperature in every internal heat load was relative same. And water temperature in 50 L storage are 46.58-48.81 ˚C.Keywords : Hybrid Air Conditioning, Dummy Condenser, Hydrocarbon Refrigerant HCR-22, Cooling Load.
Co-Authors Abd. Rasyid Syamsuri Adha, Aidil Afdhal Kurniawan Mainil Boby Hary Hartanto, Boby Hary Ginting, Hardianto Herisiswanto, Herisiswanto Iwan Kurniawan Izzuddin Ali Raja Siregar, Izzuddin Ali Raja Jenvrizen, David KHOIRUL ANAM Listiono, Hendra Muh Wira Tri Kusuma, Muh Wira Tri Muhammad Faizal Syukrillah, Muhammad Faizal Purba, Adi Hans Rahmat Iman Mainil Renhard Niptro G, Renhard Niptro Surya, Ahmad Thalal, Thalal Yandra, Vicky Yofita Sandra, S.Pd., M.Pd., Zico Farlin, Dr. Budiwirman, M.Pd.,