Pub Date : 2022-07-15DOI: 10.35814/teknobiz.v12i2.3611
Prawito Herno, Susanto Sudiro
Deep drawing adalah salah satu proses manufaktur yang sangat penting khususnya pada proses pembentukan dengan bahan dasar metal coil. Proses deep drawing dalam pembuatan cup kebanyakan digunakan pada industri pengalengan, elektronik, mobil, kedirgantaraan. Proses deep drawing mampu menghasilkan produk dengan bentuk sangat komplek dan tingkat kepresisian dengan kapasitas yang tinggi. Parameter proses yang mempengaruhi tingkat kualitas produk antara lain gaya blank holder, bentuk dan ukuran blank, radius punch, radius die, sifat material, koefisien gesekan dan beberapa parameter lainnya. Penguasaan teknologi proses deep drawing adalah merupakan persyaratan utama untuk dapat menghasilkan produk dengan cacat minimum sekaligus mengoptimalisasi untuk menurunkan biaya produksinya. Untuk mendapatkan parameter proses yang paling dominan mempengaruhi keberhasilan proses deep drawing dilakukan analisis proses pembentukan dengan melakukan simulasi menggunakan metode elemen hingga, dan hasil analisis tersebut diverifikasi menggunakan eksperimen proses pembentukan cup menggunakan proses sebenarnya. Dari hasil simulasi finite element dan eksperimen yang dilakukan didapatkan hasil gaya blank holder/blank holder force (BHF), radius punch, radius die dan aplikasi pelumasan sangat berpengaruh terhadap hasil produk.
深drawing是一个非常重要的制造过程，特别是金属线圈的基本成分的形成过程。制造杯的深层drawing过程主要用于罐头、电子、汽车和航空航天行业。深drawing工艺能够生产出高度复杂的产品和高容量的降解。影响产品质量水平的过程参数包括blank holder力，blank的形状和大小，爆炸半径，die半径，物质性质，摩擦系数和其他一些参数。对深drawing过程的技术掌握是生产有最小缺陷和优化成本降低产品的主要要求。为了获得最具支配性的进程参数，通过使用元素的方法进行形成过程的模拟来分析形成过程，并利用实际进程创建过程的实验验证了分析结果。从这些有限的元素和实验结果中获得的是独特的blank holder/blank holder force (BHF)、冲力半径、die半径和润滑剂应用程序对产品的结果有很大的影响。
{"title":"Optimalisasi Performa Proses Deep Drawing Material SPCD Steel dengan Metode Finite Element dan Eksperimental","authors":"Prawito Herno, Susanto Sudiro","doi":"10.35814/teknobiz.v12i2.3611","DOIUrl":"https://doi.org/10.35814/teknobiz.v12i2.3611","url":null,"abstract":"Deep drawing adalah salah satu proses manufaktur yang sangat penting khususnya pada proses pembentukan dengan bahan dasar metal coil. Proses deep drawing dalam pembuatan cup kebanyakan digunakan pada industri pengalengan, elektronik, mobil, kedirgantaraan. Proses deep drawing mampu menghasilkan produk dengan bentuk sangat komplek dan tingkat kepresisian dengan kapasitas yang tinggi. Parameter proses yang mempengaruhi tingkat kualitas produk antara lain gaya blank holder, bentuk dan ukuran blank, radius punch, radius die, sifat material, koefisien gesekan dan beberapa parameter lainnya. Penguasaan teknologi proses deep drawing adalah merupakan persyaratan utama untuk dapat menghasilkan produk dengan cacat minimum sekaligus mengoptimalisasi untuk menurunkan biaya produksinya. Untuk mendapatkan parameter proses yang paling dominan mempengaruhi keberhasilan proses deep drawing dilakukan analisis proses pembentukan dengan melakukan simulasi menggunakan metode elemen hingga, dan hasil analisis tersebut diverifikasi menggunakan eksperimen proses pembentukan cup menggunakan proses sebenarnya. Dari hasil simulasi finite element dan eksperimen yang dilakukan didapatkan hasil gaya blank holder/blank holder force (BHF), radius punch, radius die dan aplikasi pelumasan sangat berpengaruh terhadap hasil produk.","PeriodicalId":31503,"journal":{"name":"Turbo Jurnal Program Studi Teknik Mesin","volume":"63 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90890634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Pembuatan dan pengujian spot welding menggunakan travo daur ulang","authors":"T. Wahyudi, Asroni Asroni, Bahtiar Abdul Rahman","doi":"10.24127/trb.v11i1.2087","DOIUrl":"https://doi.org/10.24127/trb.v11i1.2087","url":null,"abstract":"","PeriodicalId":31503,"journal":{"name":"Turbo Jurnal Program Studi Teknik Mesin","volume":"76 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75602483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The amount of fossil energy reserves, especially fuel oil, which is dwindling, is the main focus for finding alternative energy sources. One of the most popular renewable energies today is biodiesel. Biodiesel can be obtained from free fatty acids from plants. One type of plant that can produce biodiesel as a raw material is kepuh (Sterculia foetida). The kepuh plant produces crude oil through fruit seeds which can be processed into biodiesel. However, biodiesel has a high viscosity value that affects the combustion reaction. Therefore we need an additive, namely ethanol to accelerate the combustion reaction. This study aims to determine the effect of the composition of ethanol in biodiesel on the characteristics of diffusion combustion. The research method used is the combustion diffusion test. The variables used in this study were the composition of biodiesel and ethanol. The composition of ethanol is 0%, 5%, 10%, 20%, 30%. The test results produce data that ethanol has an effect on the rate of diffusion of combustion and flame height. The combustion rate increases with the addition of ethanol and the flame height decreases with the addition of ethanol.
{"title":"Pengaruh komposisi etanol sebagai zat aditif pada Sterculia Foetida Methil Ester terhadap pembakaran difusi","authors":"D. Prasetiyo, Djoko Wahyudi","doi":"10.24127/trb.v11i1.1923","DOIUrl":"https://doi.org/10.24127/trb.v11i1.1923","url":null,"abstract":"The amount of fossil energy reserves, especially fuel oil, which is dwindling, is the main focus for finding alternative energy sources. One of the most popular renewable energies today is biodiesel. Biodiesel can be obtained from free fatty acids from plants. One type of plant that can produce biodiesel as a raw material is kepuh (Sterculia foetida). The kepuh plant produces crude oil through fruit seeds which can be processed into biodiesel. However, biodiesel has a high viscosity value that affects the combustion reaction. Therefore we need an additive, namely ethanol to accelerate the combustion reaction. This study aims to determine the effect of the composition of ethanol in biodiesel on the characteristics of diffusion combustion. The research method used is the combustion diffusion test. The variables used in this study were the composition of biodiesel and ethanol. The composition of ethanol is 0%, 5%, 10%, 20%, 30%. The test results produce data that ethanol has an effect on the rate of diffusion of combustion and flame height. The combustion rate increases with the addition of ethanol and the flame height decreases with the addition of ethanol.","PeriodicalId":31503,"journal":{"name":"Turbo Jurnal Program Studi Teknik Mesin","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89735673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Analisis kinerja variasi jenis dan ketebalan isolator pada dinding ruang mesin pengering kemiri","authors":"Zaky Abdul Aziz, M. Anggara","doi":"10.24127/trb.v11i1.1921","DOIUrl":"https://doi.org/10.24127/trb.v11i1.1921","url":null,"abstract":"","PeriodicalId":31503,"journal":{"name":"Turbo Jurnal Program Studi Teknik Mesin","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88478121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Yonanda, A. Amrizal, Harmen Harmen, H. Prayitno
The performance of the solar collector can be reviewed based on several parameters, namely thermal and large fluid drop (pressure drop). This study aims to compare the thermal and pressure drop performance of plate-type solar collectors based on a spiral-shaped pipe arrangement using the distance between the pipes. The comparison of performance analyzed in each study for the distance between the pipes is 25 mm and 50 mm. The approach or stage of research on the performance of the data plate type solar collector is through CFD simulation testing. The simulation stages that will be carried out include: making the geometric design of the solar collector and selecting the mesh method used by the polyhedral type. The results of the solar collector test carried out by CFD simulation show that the use of a 50 mm absorber pipe arrangement has a higher thermal efficiency when compared to the 75 mm absorber pipe arrangement and also a 49.45% increase in pressure drop.
{"title":"Simulasi unjuk kerja kolektor surya hybrid PV/T berdasarkan jarak susunan pipa absorber berbentuk spiral","authors":"A. Yonanda, A. Amrizal, Harmen Harmen, H. Prayitno","doi":"10.24127/trb.v11i1.1906","DOIUrl":"https://doi.org/10.24127/trb.v11i1.1906","url":null,"abstract":"The performance of the solar collector can be reviewed based on several parameters, namely thermal and large fluid drop (pressure drop). This study aims to compare the thermal and pressure drop performance of plate-type solar collectors based on a spiral-shaped pipe arrangement using the distance between the pipes. The comparison of performance analyzed in each study for the distance between the pipes is 25 mm and 50 mm. The approach or stage of research on the performance of the data plate type solar collector is through CFD simulation testing. The simulation stages that will be carried out include: making the geometric design of the solar collector and selecting the mesh method used by the polyhedral type. The results of the solar collector test carried out by CFD simulation show that the use of a 50 mm absorber pipe arrangement has a higher thermal efficiency when compared to the 75 mm absorber pipe arrangement and also a 49.45% increase in pressure drop.","PeriodicalId":31503,"journal":{"name":"Turbo Jurnal Program Studi Teknik Mesin","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90471775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Andy Nugraha, Herry Irawansyah, Mohamad Afifudin, Muhammad Muhammad, Rizqi Nor Al’Arisko
{"title":"Pengaruh variasi ukuran serbuk dan persentase perekat terigu terhadap sifat fisik pellet kayu gelam","authors":"Andy Nugraha, Herry Irawansyah, Mohamad Afifudin, Muhammad Muhammad, Rizqi Nor Al’Arisko","doi":"10.24127/trb.v11i1.1825","DOIUrl":"https://doi.org/10.24127/trb.v11i1.1825","url":null,"abstract":"","PeriodicalId":31503,"journal":{"name":"Turbo Jurnal Program Studi Teknik Mesin","volume":"42 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78713921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Currently steel pipes are needed, especially in construction work. Construction with pipe materials cannot be separated from the process of joining and cutting. The cutting process for large pipes always uses a thermal cutting process. This study aims to determine how much influence the cutting distance has on the cutting results on a pipe that rotates at a constant 0.8 rpm following the shape of the corner joint contour. To achieve the objectives of this study, a pipe cutting tool with a diameter of 4 to 6 inches is needed with the thermal cutting method using the Oxy Acetylene Cutting (OAC) process This research data was obtained by cutting the 4inch pipe schedule 10s, schedule 20s and schedule 40s in a rotating condition and the cutting torch moves back and forth. The pipe rotates at 0.8 rpm using an AC motor transmitted using a gearbox connected to the wheel as a holder where the pipe rotates. The results of the cutting are in the form of a pipe connection contour with an angle of 900 and 600. As the independent variable in this study was set the cutting distance is 5mm, 7mm and 10 mm, while the fixed variables are determined by cutting speed 280 mm/minute, acetylene gas pressure 3.5 kg/cm2 and oxygen 17.5 kg/cm2. In order to get effective results, preheat the surface of the pipe with a gas fuel mixture until it reaches the melting temperature of the pipe as the main ingredient. The cutting results that meet the entire path of the pipe can be cut completely and through and there is very little splash or melt dirt during the cutting process. After cutting, the best results are obtained at a cutting distance of 5 mm both on schedule 10s, schedule 20s and schedule 40s.
{"title":"Analisa pengaruh jarak cutting torch terhadap permukaan berputar pada mesin pemotong kontur sambungan pipa","authors":"A. Akhyan, H. Salam","doi":"10.24127/trb.v11i1.1882","DOIUrl":"https://doi.org/10.24127/trb.v11i1.1882","url":null,"abstract":"Currently steel pipes are needed, especially in construction work. Construction with pipe materials cannot be separated from the process of joining and cutting. The cutting process for large pipes always uses a thermal cutting process. This study aims to determine how much influence the cutting distance has on the cutting results on a pipe that rotates at a constant 0.8 rpm following the shape of the corner joint contour. To achieve the objectives of this study, a pipe cutting tool with a diameter of 4 to 6 inches is needed with the thermal cutting method using the Oxy Acetylene Cutting (OAC) process This research data was obtained by cutting the 4inch pipe schedule 10s, schedule 20s and schedule 40s in a rotating condition and the cutting torch moves back and forth. The pipe rotates at 0.8 rpm using an AC motor transmitted using a gearbox connected to the wheel as a holder where the pipe rotates. The results of the cutting are in the form of a pipe connection contour with an angle of 900 and 600. As the independent variable in this study was set the cutting distance is 5mm, 7mm and 10 mm, while the fixed variables are determined by cutting speed 280 mm/minute, acetylene gas pressure 3.5 kg/cm2 and oxygen 17.5 kg/cm2. In order to get effective results, preheat the surface of the pipe with a gas fuel mixture until it reaches the melting temperature of the pipe as the main ingredient. The cutting results that meet the entire path of the pipe can be cut completely and through and there is very little splash or melt dirt during the cutting process. After cutting, the best results are obtained at a cutting distance of 5 mm both on schedule 10s, schedule 20s and schedule 40s.","PeriodicalId":31503,"journal":{"name":"Turbo Jurnal Program Studi Teknik Mesin","volume":"67 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77130834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Muhammad Abdul Rafiq Septiyanto, Indreswari Suroso, N. Utami
Bearing is a surface component that protects two parts that rub against each other. Bearings have several components including inner rings, roll bearings and supports. Bearings will experience weariness when used continuously, so the purpose of this study is to determine the level of hardness and wear of each bearing component of the Cessna Grand Caravan 208B aircraft. Hardness testing is carried out by vickers method and test sampling is carried out at three different points in each specimen. Wear testing uses the Ogoshimethod and test sampling is performed at three different points in each specimen. The results of this study concluded that vickers hardness testing received the highest hardness score on the roll with an average value of 739.7 VHN, the second highest hardness in the inner ring had an average hardness value of 695.1 VHN, and the lowest hardness in the buffer section had an average hardness value of 110.2 VHN. The wear test results get the highest value on the support section which is 0.00273 mm³ / kg.m, the second highest wear on the inner ring is 0.00133 mm³ / kg.m, and the lowest wear value on the roll is 0.00056 mm³ / kg.m.
{"title":"Analisis kekerasan dan keausan bearing pada pesawat Cessna Grand Carravan 208B","authors":"Muhammad Abdul Rafiq Septiyanto, Indreswari Suroso, N. Utami","doi":"10.24127/trb.v11i1.2045","DOIUrl":"https://doi.org/10.24127/trb.v11i1.2045","url":null,"abstract":"Bearing is a surface component that protects two parts that rub against each other. Bearings have several components including inner rings, roll bearings and supports. Bearings will experience weariness when used continuously, so the purpose of this study is to determine the level of hardness and wear of each bearing component of the Cessna Grand Caravan 208B aircraft. Hardness testing is carried out by vickers method and test sampling is carried out at three different points in each specimen. Wear testing uses the Ogoshimethod and test sampling is performed at three different points in each specimen. The results of this study concluded that vickers hardness testing received the highest hardness score on the roll with an average value of 739.7 VHN, the second highest hardness in the inner ring had an average hardness value of 695.1 VHN, and the lowest hardness in the buffer section had an average hardness value of 110.2 VHN. The wear test results get the highest value on the support section which is 0.00273 mm³ / kg.m, the second highest wear on the inner ring is 0.00133 mm³ / kg.m, and the lowest wear value on the roll is 0.00056 mm³ / kg.m.","PeriodicalId":31503,"journal":{"name":"Turbo Jurnal Program Studi Teknik Mesin","volume":"42 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75687882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The purpose of the study was to determine the temperature value at each point of the refrigeration performance tool, heat absorption, refrigerant flow rate, compressor power, and the working speed of the refrigeration performance test tool or (Coefficient Of Performance) COP during the 60 minute test time. The method that will be used in this research is to modify the test equipment and conduct real experiments by analyzing several variables that affect the performance of the air conditioning system. The independent variables in this study were the refrigerant pressure of 60 Psi, 70 Psi, and 80 Psi. The addition of several components of measuring instruments that function to display data will be carried out at each point as needed. Digital reading of data will function to display test result data in the form of numbers for air temperature, temperature, and refrigerant pressure in the air conditioning machine (AC). The study was conducted in a room with a size of 4 x 5 x 2.5 meters, and using LG AC with a compressor power of 1 PK. Based on the test results, changes in temperature that occur at each point of the performance of the air conditioning machine and heat absorption affect the temperature changes of each cooling machine performance, namely the use of 60 Psi of 23.9 C for 70 Psi of 24.8 C and 80 Psi is 22.1 C. Then changes to heat absorption by the condenser and evaporator are at a refrigerant pressure of 60 Psi of 171.6 kJ/s for 70 Psi of 201.1 kJ/s and 80 Psi of 215.3 kJ/s. And the heat absorption that occurs in the evaporator with a pressure of 60 Psi is 143.3 kJ/s for 70 Psi of 161.6 kJ/s and 80 Psi is 172.2 kJ/s. The resulting refrigerant flow rate and compressor power, for the refrigerant flow rate, affect the changes that occur in the use of 60 Psi of 0.003 kg/s, for 70 Psi of 0.004 kg/s, and 80 Psi of 0.005 kg/s. Then for the compressor power at the use of 60 Psi of 0.446 kW, for 70 Psi of 0.521 kW, and 80 Psi of 0.611 kW. The refrigerant flow rate value of the refrigeration machine performance test tool or COP produced at a refrigerant pressure of 60 Psi is 3.26 for 70 Psi, namely 4.45 and 80 Psi is 5.11.
{"title":"Analisa kerja alat uji prestasi mesin pendingin udara dengan kapasitas daya kompresor 1 PK","authors":"Lukito Dwi Yuono, Eko Budiyanto, A. Ansori","doi":"10.24127/trb.v11i1.2118","DOIUrl":"https://doi.org/10.24127/trb.v11i1.2118","url":null,"abstract":"The purpose of the study was to determine the temperature value at each point of the refrigeration performance tool, heat absorption, refrigerant flow rate, compressor power, and the working speed of the refrigeration performance test tool or (Coefficient Of Performance) COP during the 60 minute test time. The method that will be used in this research is to modify the test equipment and conduct real experiments by analyzing several variables that affect the performance of the air conditioning system. The independent variables in this study were the refrigerant pressure of 60 Psi, 70 Psi, and 80 Psi. The addition of several components of measuring instruments that function to display data will be carried out at each point as needed. Digital reading of data will function to display test result data in the form of numbers for air temperature, temperature, and refrigerant pressure in the air conditioning machine (AC). The study was conducted in a room with a size of 4 x 5 x 2.5 meters, and using LG AC with a compressor power of 1 PK. Based on the test results, changes in temperature that occur at each point of the performance of the air conditioning machine and heat absorption affect the temperature changes of each cooling machine performance, namely the use of 60 Psi of 23.9 C for 70 Psi of 24.8 C and 80 Psi is 22.1 C. Then changes to heat absorption by the condenser and evaporator are at a refrigerant pressure of 60 Psi of 171.6 kJ/s for 70 Psi of 201.1 kJ/s and 80 Psi of 215.3 kJ/s. And the heat absorption that occurs in the evaporator with a pressure of 60 Psi is 143.3 kJ/s for 70 Psi of 161.6 kJ/s and 80 Psi is 172.2 kJ/s. The resulting refrigerant flow rate and compressor power, for the refrigerant flow rate, affect the changes that occur in the use of 60 Psi of 0.003 kg/s, for 70 Psi of 0.004 kg/s, and 80 Psi of 0.005 kg/s. Then for the compressor power at the use of 60 Psi of 0.446 kW, for 70 Psi of 0.521 kW, and 80 Psi of 0.611 kW. The refrigerant flow rate value of the refrigeration machine performance test tool or COP produced at a refrigerant pressure of 60 Psi is 3.26 for 70 Psi, namely 4.45 and 80 Psi is 5.11.","PeriodicalId":31503,"journal":{"name":"Turbo Jurnal Program Studi Teknik Mesin","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84854427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Liquid-gas ejector is an energy conversion device capable of flowing air fluid by utilizing water fluid based on the pressure difference between the two fluids without using moving parts. This study aims to determine the effect of changes in nozzle geometry on two-phase flow on the performance of the liquid-gas ejector. The method used is by conducting an experiment whose stages include: determining the nozzle geometry parameter, primary flow rate, and secondary flow rate. Then carry out tests on the installation of liquid-gas ejectors and collect data. The test is done by alternating the nozzle geometry, primary flow rate, and secondary flow rate. Next, analyze the data that has been collected to get the efficiency or performance of the liquid-gas ejector from changes in the nozzle geometry. The results showed that increasing the nozzle geometry tends to cause a decrease in the efficiency and coefficient of the nozzle. The maximum efficiency produced by each nozzle with a geometry of 0.57; 0.64; 0.71; 0.79 and 0.86 respectively were 24.33%, 23.43%, 8.19%, 16.21%, and 7.96%. While the nozzle coefficients are 0.94, respectively; 0.81; 0.59; 071; and 0.59.
{"title":"Pengaruh perubahan geometri nosel pada aliran dua fase terhadap kinerja liquid-gas ejector","authors":"Rusadi Rusadi, Hadimi Hadimi, E. Karyadi","doi":"10.24127/trb.v11i1.1769","DOIUrl":"https://doi.org/10.24127/trb.v11i1.1769","url":null,"abstract":"Liquid-gas ejector is an energy conversion device capable of flowing air fluid by utilizing water fluid based on the pressure difference between the two fluids without using moving parts. This study aims to determine the effect of changes in nozzle geometry on two-phase flow on the performance of the liquid-gas ejector. The method used is by conducting an experiment whose stages include: determining the nozzle geometry parameter, primary flow rate, and secondary flow rate. Then carry out tests on the installation of liquid-gas ejectors and collect data. The test is done by alternating the nozzle geometry, primary flow rate, and secondary flow rate. Next, analyze the data that has been collected to get the efficiency or performance of the liquid-gas ejector from changes in the nozzle geometry. The results showed that increasing the nozzle geometry tends to cause a decrease in the efficiency and coefficient of the nozzle. The maximum efficiency produced by each nozzle with a geometry of 0.57; 0.64; 0.71; 0.79 and 0.86 respectively were 24.33%, 23.43%, 8.19%, 16.21%, and 7.96%. While the nozzle coefficients are 0.94, respectively; 0.81; 0.59; 071; and 0.59.","PeriodicalId":31503,"journal":{"name":"Turbo Jurnal Program Studi Teknik Mesin","volume":"59 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85522176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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