THE 7TH INTERNATIONAL CONFERENCE ON ENGINEERING, APPLIED SCIENCES AND TECHNOLOGY: (ICEAST2021)最新文献_第3页

Effect of regenerator on V-type alpha Stirling engine performance 蓄热器对v型α斯特林发动机性能的影响

THE 7TH INTERNATIONAL CONFERENCE ON ENGINEERING, APPLIED SCIENCES AND TECHNOLOGY: (ICEAST2021) Pub Date : 2021-09-15 DOI: 10.1063/5.0064997

Varit Senviboon, P. Kansuwan, Banterng Silpsakoolsook, S. Kwankaomeng

{"title":"Effect of regenerator on V-type alpha Stirling engine performance","authors":"Varit Senviboon, P. Kansuwan, Banterng Silpsakoolsook, S. Kwankaomeng","doi":"10.1063/5.0064997","DOIUrl":"https://doi.org/10.1063/5.0064997","url":null,"abstract":"This paper presents the performance of an Alpha-type Stirling engine with and without a regenerator. The Alpha Stirling engine with a V-cylinder arrangement has two pistons that fit in hot and cold cylinders separately. The prototype engine has swept volume of 79 cm3. Working gas is ambient air and coolant is water. The engine performance test was conducted in two operating modes as a heat pump and a heat engine. Working as a heat pump, temperature drop at the cold cylinder was measured relative to work input from an induction motor. By varying its speed using an inverter, the cooling curves of the engine with and without regenerative heat exchanger were obtained for comparison. Working as a heat engine, on the contrary, heat input instead of work input as in the heat pump was applied to the engine by a fuel burner at a constant feed rate of LPG. The temperature on the cold cylinder is controlled by cooling water from the cooler. By varying the cooling water temperature, the variations of work output were measured from the output shaft by the rope brake dynamometer. The performance results of the two operating modes with and without regenerator were compared.","PeriodicalId":445992,"journal":{"name":"THE 7TH INTERNATIONAL CONFERENCE ON ENGINEERING, APPLIED SCIENCES AND TECHNOLOGY: (ICEAST2021)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129386528","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}

引用次数: 0

Hazardous waste management within basic chemistry laboratory at KMUTNB KMUTNB基础化学实验室的危险废物管理

THE 7TH INTERNATIONAL CONFERENCE ON ENGINEERING, APPLIED SCIENCES AND TECHNOLOGY: (ICEAST2021) Pub Date : 2021-09-15 DOI: 10.1063/5.0064524

Sampan Soiklom, K. Piyamongkala

{"title":"Hazardous waste management within basic chemistry laboratory at KMUTNB","authors":"Sampan Soiklom, K. Piyamongkala","doi":"10.1063/5.0064524","DOIUrl":"https://doi.org/10.1063/5.0064524","url":null,"abstract":"Experiment in the chemistry laboratory is one of the sources of hazardous waste, however the management of such waste has received little attention from the concerned stakeholders. The purpose of this research was to analyze the current situation of hazardous waste generated in basic chemistry laboratory from Department of Industrial Chemistry, Faculty of Applied Science at the King Mongkut’s University of Technology North Bangkok (KMUTNB). A series of the experiments were conducted to observe the generations of the hazardous waste in the laboratory for two semesters in the academic year 2019. The study identified solid and liquid two types of hazardous waste generated from the laboratory. The solid state hazardous waste included fine powder of barium sulfate (BaSO4), broken laboratory glasswares (BG), litmus papers (LP), universal papers (UP), filter papers (FP), chemical labels (CL) and rubber gloves (RG) whereas mixed heavy metals, mixed bases and mixed acids were included in the hazardous waste in the liquid state. Broken laboratory glassware was found to be the largest component among the solid wastes generated in the basic chemistry laboratory at KMUTNB during the experiment period. Similarly, the mixed heavy metals was found to be the major contributor for the liquid hazardous waste with 22.5 liters in total in the specified period. The study implicated that the amount the solid and liquid hazardous waste can be reduced with the efficient management practice by collecting, treating and disposing of the hazardous waste carefully.","PeriodicalId":445992,"journal":{"name":"THE 7TH INTERNATIONAL CONFERENCE ON ENGINEERING, APPLIED SCIENCES AND TECHNOLOGY: (ICEAST2021)","volume":"3 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131862294","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}

引用次数: 0

Investigation the behaviors of vibrations waves from high-speed train modelling 研究高速列车模型振动波的特性

THE 7TH INTERNATIONAL CONFERENCE ON ENGINEERING, APPLIED SCIENCES AND TECHNOLOGY: (ICEAST2021) Pub Date : 2021-09-15 DOI: 10.1063/5.0064503

Suvisit Banyam, A. Jarasjarungkiat, Boonyakorn Warawas

{"title":"Investigation the behaviors of vibrations waves from high-speed train modelling","authors":"Suvisit Banyam, A. Jarasjarungkiat, Boonyakorn Warawas","doi":"10.1063/5.0064503","DOIUrl":"https://doi.org/10.1063/5.0064503","url":null,"abstract":"Railway transportation is important for public transportation in Thailand like Bangkok Mass Transit System (BTS) and Mass Rapid Transit (MRT). Therefore, the organization of national development has objective to develop in railway transportation. Moreover, they are planning to build railway in Thailand to connect between ASEAN and China. There are many researchers who studied about the railway transportation infrastructure by using various methods. However, in this studies, waves of high-speed train were investigated by using different velocities into force and free vibration equations from structural dynamic. Then the results showed that shorter range was happened due to the vibration waves of high-speed trains than waves of low-speed ones. Finally, finite element software was used to get characteristics of the waves. The results proved that the vibrations waves were strong at first 1-5meter, however, at the distances of 5-15meter waves were decreased significantly in intensity. It was reduced to the end or there was no effect at the distance more than 18meter waves from the wave source.","PeriodicalId":445992,"journal":{"name":"THE 7TH INTERNATIONAL CONFERENCE ON ENGINEERING, APPLIED SCIENCES AND TECHNOLOGY: (ICEAST2021)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130056123","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}

引用次数: 0

Development of banana pressing machine for enhancing productivity of dried banana processing plants: Case study in Phitsanulok Province, Thailand 香蕉压榨机的发展，以提高干香蕉加工厂的生产力:泰国披世洛省的案例研究

THE 7TH INTERNATIONAL CONFERENCE ON ENGINEERING, APPLIED SCIENCES AND TECHNOLOGY: (ICEAST2021) Pub Date : 2021-09-15 DOI: 10.1063/5.0063888

Narisara Suwichien, U. Wangrakdiskul

{"title":"Development of banana pressing machine for enhancing productivity of dried banana processing plants: Case study in Phitsanulok Province, Thailand","authors":"Narisara Suwichien, U. Wangrakdiskul","doi":"10.1063/5.0063888","DOIUrl":"https://doi.org/10.1063/5.0063888","url":null,"abstract":"This research aims to develop the production process in pressing process of rolled dried banana by improving the manual pressing machine in a dried banana community, Phitsanulok Province. Banana pressing machine consists of simultaneous two handles for user safety and reducing fatigue. This pressing machine has a base that supports the weight from each pressing with a metal plate on top to flatten the banana. By comparing pressing a banana with a wooden pressing machine and a developed metal pressing machine, the result from the sample factory shows that it reduced the production cycle time, number of bananas pressing per cycle, improved the pressed banana (flattened banana) and also reduce the time for adjusting pressed bananas. The results showed that using a wooden pressing machine takes 4.2 seconds/ banana, while the developed metal pressing machine takes 10 seconds /4 bananas or an average of 2.5 seconds/banana. It can be decreased 40.5% of cycle time. In addition, a number of pressing bananas per cycle can be reduced from 3 to 1 time, reducing for 66.7. Furthermore, development of this machine can also reduce the user’s fatigue when applying compression and reduces the risk of harms user’s hands during compressing operation.","PeriodicalId":445992,"journal":{"name":"THE 7TH INTERNATIONAL CONFERENCE ON ENGINEERING, APPLIED SCIENCES AND TECHNOLOGY: (ICEAST2021)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134286291","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}

引用次数: 0

Effect of expanded perlite on physical and mechanical properties of cement mortar 膨胀珍珠岩对水泥砂浆物理力学性能的影响

THE 7TH INTERNATIONAL CONFERENCE ON ENGINEERING, APPLIED SCIENCES AND TECHNOLOGY: (ICEAST2021) Pub Date : 2021-09-15 DOI: 10.1063/5.0063810

Jira Patthanavarit, M. Kitiwan, N. Keawprak, P. Tunthawiroon

{"title":"Effect of expanded perlite on physical and mechanical properties of cement mortar","authors":"Jira Patthanavarit, M. Kitiwan, N. Keawprak, P. Tunthawiroon","doi":"10.1063/5.0063810","DOIUrl":"https://doi.org/10.1063/5.0063810","url":null,"abstract":"This study presents an investigation of the physical and mechanical properties of the cement mortar containing expanded perlite as a filler material. The effects of perlite replacement contents and compressive molding force on bulk density, water absorption, and flexural strength were observed. In the mixture of mortar, the content of sand was replaced with perlite ranging from 0 to 15% by weight. The specimen was pressed under the uniaxial force varied from 20 to 40 kN then de-molded and cured in the humidity for 28 days. With the increase in perlite content from 0 to 15 wt%, the bulk density decreased from 2118 kg/m3 to 1586 kg/m3 while the water absorption increased from 7.4% to18.7%. All composites showed a low thermal conductivity in the range of 0.10–0.27 W/m K. The specimen without perlite had a flexural strength in the range of 10.7–14.2 MPa, while that of sample containing perlite was 7.8–12.5 MPa. The cement mortar composite containing 10 wt% expanded perlite and molding at 40 kN showed the highest flexural strength of 12.50±1.36 MPa while the bulk density and water absorption were 1773 kg/m3 and 1.40 %, respectively. The results of this research can be used as a guideline for further development in building materials such as lightweight roof tile, lightweight brick, and ceiling tile.","PeriodicalId":445992,"journal":{"name":"THE 7TH INTERNATIONAL CONFERENCE ON ENGINEERING, APPLIED SCIENCES AND TECHNOLOGY: (ICEAST2021)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133588045","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}

引用次数: 0

Production of empty palm bunch biochar using microwave-assisted pyrolysis at low temperature 微波辅助低温热解制备空棕榈束生物炭

THE 7TH INTERNATIONAL CONFERENCE ON ENGINEERING, APPLIED SCIENCES AND TECHNOLOGY: (ICEAST2021) Pub Date : 2021-09-15 DOI: 10.1063/5.0064053

Atipong Paikamnam, Weerawat Clowutimon, Sirayu Chanpee, Pongsert Sriprom, P. Assawasaengrat

{"title":"Production of empty palm bunch biochar using microwave-assisted pyrolysis at low temperature","authors":"Atipong Paikamnam, Weerawat Clowutimon, Sirayu Chanpee, Pongsert Sriprom, P. Assawasaengrat","doi":"10.1063/5.0064053","DOIUrl":"https://doi.org/10.1063/5.0064053","url":null,"abstract":"In this study, the production of palm empty fruit bunch biochar using microwave-assisted pyrolysis at low temperature was investigated. The empty palm bunch composition was analyzed by proximate analysis. The parameters relating to the production, i.e. type of microwave absorber, microwave power, heating time and ratio of palm empty fruit bunch to initial amount of microwave absorber, were studied to determine the optimum condition. The results found that the amount of fixed carbon in the empty palm bunch was approximately 10%. The optimum condition was microwave power 300-watt, heating 450 sec and ratio of empty palm bunch to concentrated sulfuric acid (the most suitable microwave absorber) 1:2.5. At this condition, the production yield was 50.78%. The iodine number of the biochar was 318.5 mg/g. The BET surface area of the biochar was 101.54 m2/g. The total pore volumes and pore diameter of the biochar were 0.144 cm3/g and 4.29 nm. respectively. The elemental analysis of biochar at the optimum condition was mainly composed of carbon and oxygen. The ratio of O/C is 0.73 indicating that the biochar is quite stable product against oxidation.","PeriodicalId":445992,"journal":{"name":"THE 7TH INTERNATIONAL CONFERENCE ON ENGINEERING, APPLIED SCIENCES AND TECHNOLOGY: (ICEAST2021)","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132987729","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}

引用次数: 0

Influence of functionalized graphene and processing condition on electrical property of polyamide 11/functionalized graphene cast films 功能化石墨烯及工艺条件对聚酰胺11/功能化石墨烯铸膜电性能的影响

THE 7TH INTERNATIONAL CONFERENCE ON ENGINEERING, APPLIED SCIENCES AND TECHNOLOGY: (ICEAST2021) Pub Date : 1900-01-01 DOI: 10.1063/5.0064068

Kantika Somboon, N. Hongsriphan, P. Patanathabutr

引用次数: 0

The influence of processing parameters on mechanical and morphological properties of TPVs base on natural rubber and polypropylene blends: A statistics approach 加工参数对天然橡胶和聚丙烯共混物TPVs力学和形态性能的影响:统计学方法

THE 7TH INTERNATIONAL CONFERENCE ON ENGINEERING, APPLIED SCIENCES AND TECHNOLOGY: (ICEAST2021) Pub Date : 1900-01-01 DOI: 10.1063/5.0063791

N. Phupewkeaw, Pattarawit Srimuang

引用次数: 0

Defective product reduction in jewelry part production using six sigma technique 利用六西格玛技术减少珠宝零件生产中的不良品

THE 7TH INTERNATIONAL CONFERENCE ON ENGINEERING, APPLIED SCIENCES AND TECHNOLOGY: (ICEAST2021) Pub Date : 1900-01-01 DOI: 10.1063/5.0063862

Patiphat Mueanglue, R. Chompu-inwai

引用次数: 0

Preface: The 7th International Conference on Engineering, Applied Sciences and Technology (ICEAST2021) 第七届工程、应用科学与技术国际会议(ICEAST2021)

THE 7TH INTERNATIONAL CONFERENCE ON ENGINEERING, APPLIED SCIENCES AND TECHNOLOGY: (ICEAST2021) Pub Date : 1900-01-01 DOI: 10.1063/12.0005793

引用次数: 0