Pub Date : 2023-12-19DOI: 10.1080/14484846.2023.2295108
Akeel Z. Mahdi, Orhan Sabah Abdullah
{"title":"Experimental and numerical study of fatigue life for Aluminum Composite Panel (ACP) under the ranges of wind speed effect","authors":"Akeel Z. Mahdi, Orhan Sabah Abdullah","doi":"10.1080/14484846.2023.2295108","DOIUrl":"https://doi.org/10.1080/14484846.2023.2295108","url":null,"abstract":"","PeriodicalId":8584,"journal":{"name":"Australian Journal of Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138962502","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}
Pub Date : 2023-12-06DOI: 10.1080/14484846.2023.2287259
Emre Ayhan, Mustafa Yurdakul, Can Çoğun, Y. Iç
{"title":"The entropy method integrated RSM model to evaluate hole geometries in electrochemical blind hole drilling","authors":"Emre Ayhan, Mustafa Yurdakul, Can Çoğun, Y. Iç","doi":"10.1080/14484846.2023.2287259","DOIUrl":"https://doi.org/10.1080/14484846.2023.2287259","url":null,"abstract":"","PeriodicalId":8584,"journal":{"name":"Australian Journal of Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138596486","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}
Pub Date : 2023-12-06DOI: 10.1080/14484846.2023.2287256
Jaya Kishore S, Mallikarjun Biradar
{"title":"Optimisation of laser welding parameters to maximise the joint strength of laser weld stainless steel joints using a GA for geothermal plants","authors":"Jaya Kishore S, Mallikarjun Biradar","doi":"10.1080/14484846.2023.2287256","DOIUrl":"https://doi.org/10.1080/14484846.2023.2287256","url":null,"abstract":"","PeriodicalId":8584,"journal":{"name":"Australian Journal of Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138595888","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}
Pub Date : 2023-12-05DOI: 10.1080/14484846.2023.2281027
Ahmed E. Salman, N. Y. Ahmed, Mohamed H. Saad
{"title":"Machine learning-based fault diagnosis for three-phase induction motors in ventilation systems","authors":"Ahmed E. Salman, N. Y. Ahmed, Mohamed H. Saad","doi":"10.1080/14484846.2023.2281027","DOIUrl":"https://doi.org/10.1080/14484846.2023.2281027","url":null,"abstract":"","PeriodicalId":8584,"journal":{"name":"Australian Journal of Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138598582","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}
Pub Date : 2023-11-30DOI: 10.1080/14484846.2023.2283663
P. K. Arora, Y. Shrivastava, Harish Kumar
{"title":"Optimising FDM printing parameters for improved tensile properties in 3D printed ASTM D638 standard samples","authors":"P. K. Arora, Y. Shrivastava, Harish Kumar","doi":"10.1080/14484846.2023.2283663","DOIUrl":"https://doi.org/10.1080/14484846.2023.2283663","url":null,"abstract":"","PeriodicalId":8584,"journal":{"name":"Australian Journal of Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139202504","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}
Pub Date : 2023-11-16DOI: 10.1080/14484846.2023.2274999
B. Musthafa, B. Saravanan, B. Vaibhav, P. Muhammad, F. Sam, M. Asokan
{"title":"Performance and emission analysis of a diesel engine fuelled with Juliflora biodiesel: a simulation and experimental study","authors":"B. Musthafa, B. Saravanan, B. Vaibhav, P. Muhammad, F. Sam, M. Asokan","doi":"10.1080/14484846.2023.2274999","DOIUrl":"https://doi.org/10.1080/14484846.2023.2274999","url":null,"abstract":"","PeriodicalId":8584,"journal":{"name":"Australian Journal of Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139269966","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}
Pub Date : 2023-11-12DOI: 10.1080/14484846.2023.2276987
J Kumaraswamy, K C Anil, T R Veena, Mahadeva Reddy, K Sunil Kumar
ABSTRACTAluminium alloys are employed in advanced applications due to their desirable combination of low density, high strength, durability, availability, and cost vs. competing materials. The characteristics described above can be increased further by employing aluminium matrix composite materials reinforced with harder particles. The hybrid aluminium alloy (Al7075) composite was made in an electric resistance furnace using the sand mould process and reinforced with alumina (Al2O3) and boron carbide (B4C) particles. The purpose of this research to investigate the mechanical characteristics of Al7075-Al2O3-B4C hybrid composites with stable Al2O3 weight percentages (4%) and varied B4C weight percentages (2–6%). Mechanical characteristics includes tensile and compressive strength, hardness, and microstructure analysis were evaluated on the pure and cast specimens. In this study, which followed the ASTM standard, the mechanical characteristics of Al7075 alloy hybrid composites were examined experimentally and validated using FEA. The results showed that when hard ceramic particles (Al2O3/B4C) were added to matrix alloy (Al7075), mechanical characteristics such as compressive strength and hardness improved while tensile strength was reduced. The static structural tensile test was successfully simulated in ANSYS. It was observed that both FEA results and analytical results were correlated.KEYWORDS: Al7075Al2O3, B4CmicrostructureMechanical behaviourFEM Disclosure statementNo potential conflict of interest was reported by the author(s).Data availability statementThe data that support the findings of this study are available from the corresponding author, upon reasonable request.Additional informationNotes on contributorsJ KumaraswamyDr. Kumaraswamy J is currently working as an Assistant Professor in the Dept. of Mechanical Engineering at R. L. Jalappa Institute of Technology in Doddaballapur, Bangalore Rural. He earned his Ph.D., from UBDT College of Engineering at Visvesvaraya Technological University (VTU), Belagavi, India. He has 10 years of teaching experience and serves as the Editor of the International Journal of Mechanical Engineering (IJME). He has published 19 research papers in international journals, including 2 in SCI-indexed journals and 17 in Scopus-indexed journals. His H-Index is 12, I-Index is 13, and his work has received a total of 400 citations. His research interests encompass materials science.K C AnilDr. Anil K C, Assistant Professor, Dept. of Industrial Engineering and Management, Siddaganga Institute of Technology, Tumkur. He obtained his Bachelor of Engineering degree in Industrial Engineering and Management during the year 2010 and completed his masters in production technology in the year 2013 and Ph.D. from Visvesvaraya Technological University (VTU), Belagavi, India.T R VeenaDr. T.R. Veena is working as an Assistant Professor in Dept. of Industrial Engineering and Management, Siddaganga Institute of Technology, BH Road, Tu
与竞争材料相比,铝合金具有低密度、高强度、耐用性、可用性和成本等优点,因此在先进应用中得到广泛应用。通过采用用更硬的颗粒增强的铝基复合材料,可以进一步增加上述特性。采用砂模法在电阻炉中制备了混杂铝合金(Al7075)复合材料,并用氧化铝(Al2O3)和碳化硼(B4C)颗粒进行增强。研究了Al2O3质量百分比稳定(4%)和B4C质量百分比变化(2-6%)的Al7075-Al2O3-B4C混杂复合材料的力学特性。力学特性包括抗拉和抗压强度、硬度和显微组织分析对纯和铸造试样进行了评估。本研究遵循ASTM标准,对Al7075合金混杂复合材料的力学特性进行了实验研究,并利用有限元分析对其进行了验证。结果表明:在基体合金(Al7075)中加入硬质陶瓷颗粒(Al2O3/B4C),可提高合金的抗压强度和硬度,降低抗拉强度;在ANSYS中成功地模拟了结构的静力拉伸试验。结果表明,有限元分析结果与分析结果具有一定的相关性。关键词:Al7075Al2O3, b4c,显微结构,力学行为,有限元披露声明作者未报告潜在的利益冲突。数据可用性声明支持本研究结果的数据可在合理要求下从通讯作者处获得。作者简介:j KumaraswamyDr。Kumaraswamy J目前在班加罗尔农村Doddaballapur的R. L. Jalappa理工学院机械工程系担任助理教授。他获得博士学位,毕业于位于印度Belagavi的Visvesvaraya科技大学(VTU)的UBDT工程学院。他有10年的教学经验,并担任国际机械工程杂志(IJME)的编辑。在国际期刊发表研究论文19篇,其中sci收录2篇,scopus收录17篇。H-Index为12,I-Index为13,共被引用400次。他的研究兴趣包括材料科学。阿尼尔博士。Anil K C,图姆库尔Siddaganga理工学院工业工程与管理系助理教授。他于2010年获得工业工程与管理学士学位,并于2013年获得生产技术硕士学位,并于印度Belagavi的Visvesvaraya Technological University (VTU)获得博士学位。T R VeenaDr。T.R. Veena是Siddaganga理工学院工业工程与管理系的助理教授,位于BH Road, Tumakuru-572103。她自2000年以来一直在这个部门工作。摩诃提婆ReddyDr。Mahadeva Reddy目前是Genba Sopanrao Moze工程学院机械工程系的助理教授,该学院位于巴勒瓦迪普纳- 411045 Maharashtra。他在印度比拉加维维斯瓦拉亚理工大学(VTU)获得博士学位。苏尼尔·库马尔博士Sunil Kumar K获得Visvesvaraya Technology University, Belagavi的博士学位,Sri Siddhartha Institute of Technology, Tumkur的硕士学位,R L Jalappa Institute of Technology, Doddaballapur的学位。
{"title":"Influence of particulates on microstructure, Mechanical and Fractured behaviour on Al-7075 alloy composite by FEA","authors":"J Kumaraswamy, K C Anil, T R Veena, Mahadeva Reddy, K Sunil Kumar","doi":"10.1080/14484846.2023.2276987","DOIUrl":"https://doi.org/10.1080/14484846.2023.2276987","url":null,"abstract":"ABSTRACTAluminium alloys are employed in advanced applications due to their desirable combination of low density, high strength, durability, availability, and cost vs. competing materials. The characteristics described above can be increased further by employing aluminium matrix composite materials reinforced with harder particles. The hybrid aluminium alloy (Al7075) composite was made in an electric resistance furnace using the sand mould process and reinforced with alumina (Al2O3) and boron carbide (B4C) particles. The purpose of this research to investigate the mechanical characteristics of Al7075-Al2O3-B4C hybrid composites with stable Al2O3 weight percentages (4%) and varied B4C weight percentages (2–6%). Mechanical characteristics includes tensile and compressive strength, hardness, and microstructure analysis were evaluated on the pure and cast specimens. In this study, which followed the ASTM standard, the mechanical characteristics of Al7075 alloy hybrid composites were examined experimentally and validated using FEA. The results showed that when hard ceramic particles (Al2O3/B4C) were added to matrix alloy (Al7075), mechanical characteristics such as compressive strength and hardness improved while tensile strength was reduced. The static structural tensile test was successfully simulated in ANSYS. It was observed that both FEA results and analytical results were correlated.KEYWORDS: Al7075Al2O3, B4CmicrostructureMechanical behaviourFEM Disclosure statementNo potential conflict of interest was reported by the author(s).Data availability statementThe data that support the findings of this study are available from the corresponding author, upon reasonable request.Additional informationNotes on contributorsJ KumaraswamyDr. Kumaraswamy J is currently working as an Assistant Professor in the Dept. of Mechanical Engineering at R. L. Jalappa Institute of Technology in Doddaballapur, Bangalore Rural. He earned his Ph.D., from UBDT College of Engineering at Visvesvaraya Technological University (VTU), Belagavi, India. He has 10 years of teaching experience and serves as the Editor of the International Journal of Mechanical Engineering (IJME). He has published 19 research papers in international journals, including 2 in SCI-indexed journals and 17 in Scopus-indexed journals. His H-Index is 12, I-Index is 13, and his work has received a total of 400 citations. His research interests encompass materials science.K C AnilDr. Anil K C, Assistant Professor, Dept. of Industrial Engineering and Management, Siddaganga Institute of Technology, Tumkur. He obtained his Bachelor of Engineering degree in Industrial Engineering and Management during the year 2010 and completed his masters in production technology in the year 2013 and Ph.D. from Visvesvaraya Technological University (VTU), Belagavi, India.T R VeenaDr. T.R. Veena is working as an Assistant Professor in Dept. of Industrial Engineering and Management, Siddaganga Institute of Technology, BH Road, Tu","PeriodicalId":8584,"journal":{"name":"Australian Journal of Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135036972","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}
Pub Date : 2023-11-09DOI: 10.1080/14484846.2023.2272329
Paul Gregory Felix, Velavan Rajagopal, Kannan Kumaresan
ABSTRACTErythritol ((2 R,3S)-Butane-1,2,3,4-tetrol) is being considered as a phase change material (PCM) of interest owing to its potential applicability for solar thermal applications. But however, lack of inclusive material characterisation outcomes drives the need to bridge this research gap. In this study, erythritol was subjected to both chemical and thermal characterisation investigations. X-ray diffractometry (XRD) investigation estimated the degree of crystallinity to be 73.48% and the crystallite size to be 38.79 nm. The fourier transform infrared spectroscopy (FT-IR) investigation has identified -OH, -C-H and -CH2 to be the major functional groups. The scanning electron microscopy (SEM) investigation visualised the crystalline architecture of the PCM. The energy dispersive x-ray spectroscopy (EDAX) investigation quantified the composition of C and O in the eclectic constituency. The UV-visible spectrophotometry investigations confirmed that erythritol could be utilised for direct solar thermal applications. The thermal characterisation investigations rendered the latent heat of the PCM to be 333.48 kJ kg−1 and its peak melting temperature to be 118.18°C. The thermal stability investigations estimated the latent heat loss per cycle to be 1.1451 kJ kg−1.KEYWORDS: Characterisationphase change materialsthermal energy storage Nomenclature β=Full width at half maximum (FWHM) (radians)λ=Wave-length of x-ray (Å)ρ=Bulk density of erythritol (kg m−3)ρxr=X-ray density of erythritol (kg m−3)θ=Peak location (radians)Ag=Avagadro’s constant (or) Avagadro’s number: 6.02214076 × 10 23Cpl=Liquid phase specific heat (kJ kg−1 K)Cps=Solid phase specific heat (kJ kg−1 K)hm=Latent heat of fusion (kJ kg−1)M=Molecular weight of erythritol (g mol−1)Qm=Heat energy required for melting alone (kJ)Qls=Heat energy stored during liquid sensible heating (kJ)Qss=Heat energy stored during solid sensible heating (kJ)Tamb=Ambient temperature (K)Tpm=Peak melting temperature (K)V=Volume of the unit cell (m3)A=Absorbance (%)D=crystallite size (nm)K=Scherrer equation constantm=Mass of erythritol used (kg)Q(t)=Instantaneous heat energy stored (kJ)R=Reflectance (%)T=Transmittance (%)AcknowledgementsThe authors thank the Department of Science and Technology (DST), Government of India and the management of PSG College of Technology, Coimbatore for their financial support.Disclosure statementNo potential conflict of interest was reported by the authors.Additional informationFundingThis work was supported by the Department of Science and Technology (DST), Government of India under Grant No.: DST/TMD/MES/2K16/20(G).Notes on contributorsPaul Gregory FelixPaul Gregory Felix holds a doctoral degree in Energy Engineering. He is currently affiliated with Sri Krishna College of Technology, Coimbatore as an Assistant Professor. He is a practising engineer and a consultant Chartered Mechanical Engineer licensed by The Institution of Engineers (India). His fields of expertise include phase ch
{"title":"Characterisation of erythritol as a potential phase change material","authors":"Paul Gregory Felix, Velavan Rajagopal, Kannan Kumaresan","doi":"10.1080/14484846.2023.2272329","DOIUrl":"https://doi.org/10.1080/14484846.2023.2272329","url":null,"abstract":"ABSTRACTErythritol ((2 R,3S)-Butane-1,2,3,4-tetrol) is being considered as a phase change material (PCM) of interest owing to its potential applicability for solar thermal applications. But however, lack of inclusive material characterisation outcomes drives the need to bridge this research gap. In this study, erythritol was subjected to both chemical and thermal characterisation investigations. X-ray diffractometry (XRD) investigation estimated the degree of crystallinity to be 73.48% and the crystallite size to be 38.79 nm. The fourier transform infrared spectroscopy (FT-IR) investigation has identified -OH, -C-H and -CH2 to be the major functional groups. The scanning electron microscopy (SEM) investigation visualised the crystalline architecture of the PCM. The energy dispersive x-ray spectroscopy (EDAX) investigation quantified the composition of C and O in the eclectic constituency. The UV-visible spectrophotometry investigations confirmed that erythritol could be utilised for direct solar thermal applications. The thermal characterisation investigations rendered the latent heat of the PCM to be 333.48 kJ kg−1 and its peak melting temperature to be 118.18°C. The thermal stability investigations estimated the latent heat loss per cycle to be 1.1451 kJ kg−1.KEYWORDS: Characterisationphase change materialsthermal energy storage Nomenclature β=Full width at half maximum (FWHM) (radians)λ=Wave-length of x-ray (Å)ρ=Bulk density of erythritol (kg m−3)ρxr=X-ray density of erythritol (kg m−3)θ=Peak location (radians)Ag=Avagadro’s constant (or) Avagadro’s number: 6.02214076 × 10 23Cpl=Liquid phase specific heat (kJ kg−1 K)Cps=Solid phase specific heat (kJ kg−1 K)hm=Latent heat of fusion (kJ kg−1)M=Molecular weight of erythritol (g mol−1)Qm=Heat energy required for melting alone (kJ)Qls=Heat energy stored during liquid sensible heating (kJ)Qss=Heat energy stored during solid sensible heating (kJ)Tamb=Ambient temperature (K)Tpm=Peak melting temperature (K)V=Volume of the unit cell (m3)A=Absorbance (%)D=crystallite size (nm)K=Scherrer equation constantm=Mass of erythritol used (kg)Q(t)=Instantaneous heat energy stored (kJ)R=Reflectance (%)T=Transmittance (%)AcknowledgementsThe authors thank the Department of Science and Technology (DST), Government of India and the management of PSG College of Technology, Coimbatore for their financial support.Disclosure statementNo potential conflict of interest was reported by the authors.Additional informationFundingThis work was supported by the Department of Science and Technology (DST), Government of India under Grant No.: DST/TMD/MES/2K16/20(G).Notes on contributorsPaul Gregory FelixPaul Gregory Felix holds a doctoral degree in Energy Engineering. He is currently affiliated with Sri Krishna College of Technology, Coimbatore as an Assistant Professor. He is a practising engineer and a consultant Chartered Mechanical Engineer licensed by The Institution of Engineers (India). His fields of expertise include phase ch","PeriodicalId":8584,"journal":{"name":"Australian Journal of Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135285975","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}
Pub Date : 2023-10-30DOI: 10.1080/14484846.2023.2275034
Gregory McLachlan, Van Thanh Dau, Peter Woodfield
The ability to convert waste plastic into combustible liquids and gases using solar energy could help transform the problem of disposal of non-recyclable plastic into a valuable and environmentally responsible source of fuel. The purpose of this study is to propose a practical model for a compound parabolic trough solar thermal reactor for pyrolysis of waste plastic. The model integrates predictions of energy available from solar radiation (at a given location, time of day and time of year) with parabolic trough collector orientation and efficiency, a transient energy balance for an evacuated tube reactor and pyrolysis kinetics of waste plastic. The experimental setup used to test the model includes a pyranometer, a commercial solar collector consisting of a 60 cm long evacuated tube with a compound parabolic reflector and multi-channel data loggers to collect temperature, humidity and radiation data. The solar radiation sub-model was found to be in excellent agreement with clear-sky irradiance data collected using the pyranometer. Predictions of reactor temperature and reaction rate were found to be sensitive to the concentrator aperture area, solar irradiance, type of plastic (Arrhenius kinetics) and radiation properties of the evacuated tube reactor but relatively insensitive to humidity, wind velocity and terrestrial irradiance. The model shows that even on a small scale, favourable conditions for pyrolysis of waste plastic can be achieved within a solar reactor.
{"title":"Solar thermal reactor model for pyrolysis of waste plastic","authors":"Gregory McLachlan, Van Thanh Dau, Peter Woodfield","doi":"10.1080/14484846.2023.2275034","DOIUrl":"https://doi.org/10.1080/14484846.2023.2275034","url":null,"abstract":"The ability to convert waste plastic into combustible liquids and gases using solar energy could help transform the problem of disposal of non-recyclable plastic into a valuable and environmentally responsible source of fuel. The purpose of this study is to propose a practical model for a compound parabolic trough solar thermal reactor for pyrolysis of waste plastic. The model integrates predictions of energy available from solar radiation (at a given location, time of day and time of year) with parabolic trough collector orientation and efficiency, a transient energy balance for an evacuated tube reactor and pyrolysis kinetics of waste plastic. The experimental setup used to test the model includes a pyranometer, a commercial solar collector consisting of a 60 cm long evacuated tube with a compound parabolic reflector and multi-channel data loggers to collect temperature, humidity and radiation data. The solar radiation sub-model was found to be in excellent agreement with clear-sky irradiance data collected using the pyranometer. Predictions of reactor temperature and reaction rate were found to be sensitive to the concentrator aperture area, solar irradiance, type of plastic (Arrhenius kinetics) and radiation properties of the evacuated tube reactor but relatively insensitive to humidity, wind velocity and terrestrial irradiance. The model shows that even on a small scale, favourable conditions for pyrolysis of waste plastic can be achieved within a solar reactor.","PeriodicalId":8584,"journal":{"name":"Australian Journal of Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136019328","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}
Pub Date : 2023-10-17DOI: 10.1080/14484846.2023.2268444
Mohammad Salehi, Jamal Zamani, Siavash Moayedi Manizani
ABSTRACTOne of the fundamental issues in additive manufacturing processes is layer-by-layer printing, which influences printing time and part surface quality. One way to overcome this difficulty is continuous liquid interface production (CLIP), which has enabled the mass manufacture of polymer components through continuous printing. Due to a limitation in access to this system, different oxygen gas permeable windows composed of polydimethylsiloxane polymer with variable substrate shapes were introduced and evaluated in this research. The aim of this study is to improve the printing speed of porous components in a layerless uniform 3D printing system as compared to Digital light processing (DLP). The results of these experiments show that the island container, compared to the micro-channel container, has a 107% increase in the duration of continuous printing before the separation force begins, enhances the component’s look, increases the height of the printed part by 30%, and decreases the maximum separation force by 7.4 times.KEYWORDS: Additive manufacturingcontinuous liquid interface productionoxygen control zonelayerless uniform 3D printing Disclosure statementNo potential conflict of interest was reported by the author(s).Data availability statementThe data that support the findings of this study are available from the corresponding author, M.Salehi, upon reasonable request.Additional informationNotes on contributorsMohammad SalehiMohammad Salehi, is a master’s student in the Mechanical Engineering Department at the University of KNTU, Tehran, Iran. He received his bachelor’s degree in Manufacturing engineering from Arak University of Technology.Jamal ZamaniJamal Zamani, Professor of Mechanics Engineering at the University of KNTU, Tehran, Iran. He received his PhD in Mechanical Engineering from Tarbiat Modares University, Iran.Siavash Moayedi ManizaniSiavash Moayedi Manizani, is a master’s student in the Mechanical Engineering Department at the University of KNTU, Tehran, Iran. He received his bachelor’s degree in Robotic Engineering from Islamic Azad University, Science and Research Branch, Tehran.
摘要增材制造工艺的一个基本问题是逐层打印,它影响打印时间和零件表面质量。克服这一困难的一种方法是连续液界面生产(CLIP),它可以通过连续打印实现聚合物组件的大规模生产。由于该系统的可及性有限,本研究引入并评估了由不同基底形状的聚二甲基硅氧烷聚合物组成的不同透氧窗口。本研究的目的是与数字光处理(DLP)相比,在无层均匀3D打印系统中提高多孔部件的打印速度。实验结果表明,与微通道容器相比,岛式容器在分离力开始前的连续打印时间增加了107%,组件外观增强,打印部件高度增加了30%,最大分离力降低了7.4倍。关键词:增材制造连续液界面生产氧控制区无层均匀3D打印披露声明作者未报告潜在利益冲突。数据可用性声明支持本研究结果的数据可应通讯作者M.Salehi的合理要求获得。mohammad Salehi,是伊朗德黑兰KNTU大学机械工程系的硕士生。他在Arak University of Technology获得制造工程学士学位。Jamal Zamani,伊朗德黑兰KNTU大学机械工程教授。他在伊朗Tarbiat Modares大学获得机械工程博士学位。Siavash Moayedi Manizani,是伊朗德黑兰KNTU大学机械工程系的硕士生。他获得了德黑兰伊斯兰阿扎德大学科学与研究部机器人工程学士学位。
{"title":"Experimental investigation of the effect of the PDMS material’s oxygen- permeable window geometry on layerless uniform 3D printing","authors":"Mohammad Salehi, Jamal Zamani, Siavash Moayedi Manizani","doi":"10.1080/14484846.2023.2268444","DOIUrl":"https://doi.org/10.1080/14484846.2023.2268444","url":null,"abstract":"ABSTRACTOne of the fundamental issues in additive manufacturing processes is layer-by-layer printing, which influences printing time and part surface quality. One way to overcome this difficulty is continuous liquid interface production (CLIP), which has enabled the mass manufacture of polymer components through continuous printing. Due to a limitation in access to this system, different oxygen gas permeable windows composed of polydimethylsiloxane polymer with variable substrate shapes were introduced and evaluated in this research. The aim of this study is to improve the printing speed of porous components in a layerless uniform 3D printing system as compared to Digital light processing (DLP). The results of these experiments show that the island container, compared to the micro-channel container, has a 107% increase in the duration of continuous printing before the separation force begins, enhances the component’s look, increases the height of the printed part by 30%, and decreases the maximum separation force by 7.4 times.KEYWORDS: Additive manufacturingcontinuous liquid interface productionoxygen control zonelayerless uniform 3D printing Disclosure statementNo potential conflict of interest was reported by the author(s).Data availability statementThe data that support the findings of this study are available from the corresponding author, M.Salehi, upon reasonable request.Additional informationNotes on contributorsMohammad SalehiMohammad Salehi, is a master’s student in the Mechanical Engineering Department at the University of KNTU, Tehran, Iran. He received his bachelor’s degree in Manufacturing engineering from Arak University of Technology.Jamal ZamaniJamal Zamani, Professor of Mechanics Engineering at the University of KNTU, Tehran, Iran. He received his PhD in Mechanical Engineering from Tarbiat Modares University, Iran.Siavash Moayedi ManizaniSiavash Moayedi Manizani, is a master’s student in the Mechanical Engineering Department at the University of KNTU, Tehran, Iran. He received his bachelor’s degree in Robotic Engineering from Islamic Azad University, Science and Research Branch, Tehran.","PeriodicalId":8584,"journal":{"name":"Australian Journal of Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135992859","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}