2017 International Conference on Sustainable Energy Engineering and Application (ICSEEA)最新文献_第2页

Stability analysis of MRAS speed sensorless control of permanent magnet synchronous motor 永磁同步电机MRAS无速度传感器控制稳定性分析

2017 International Conference on Sustainable Energy Engineering and Application (ICSEEA) Pub Date : 2017-10-01 DOI: 10.1109/ICSEEA.2017.8267684

B. Harini, Aries Subiantoro, F. Yusivar

引用次数: 8

Thermodynamic analysis of series and parallel two-stage organic rankine cycle for electricity generation enhancement 串联和并联两级有机朗肯循环增电的热力学分析

2017 International Conference on Sustainable Energy Engineering and Application (ICSEEA) Pub Date : 2017-10-01 DOI: 10.1109/ICSEEA.2017.8267681

G. Pikra, Nur Rohmah

{"title":"Thermodynamic analysis of series and parallel two-stage organic rankine cycle for electricity generation enhancement","authors":"G. Pikra, Nur Rohmah","doi":"10.1109/ICSEEA.2017.8267681","DOIUrl":"https://doi.org/10.1109/ICSEEA.2017.8267681","url":null,"abstract":"The electricity generation of ORC system produces low system performance because of the low heat source temperature. Modification of ORC is used to enhance the performance of ORC system. Series and parallel two-stage ORC (sTORC and PTORC) are two from many ORC configuration that can be used to enhance electricity generation. This paper discusses the thermodynamic analysis of STORC and PTORC to determine the enhancement of electricity generation. Hot spring in Cimanggu, Jawa Barat, Indonesia with 78°C and 70 l/minute of temperature and volume flow rate were used as initial data. R227ea was chosen as organic working fluid for each system. The first and second law of thermodynamics was used for the analysis. Analysis of the first law of thermodynamics is carried out to determine net power output and thermal efficiency of the system. The second law of thermodynamic analysis is carried out to determine exergy efficiency of the system. The result shows that net power output of STORC and PTORC is 5.94 kW and 5.01 kW respectively. Thermal and exergy efficiency of STORC are 6.21% and 6.50%, and 5.24% and 5.49% for PTORC.","PeriodicalId":297700,"journal":{"name":"2017 International Conference on Sustainable Energy Engineering and Application (ICSEEA)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130320575","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

Performance estimation of regenerative organic rankine cycle using heat source from hot spring in Masaingi, Central Sulawesi, Indonesia 利用印尼中苏拉威西马萨因吉温泉热源再生有机朗肯循环的性能评价

2017 International Conference on Sustainable Energy Engineering and Application (ICSEEA) Pub Date : 2017-10-01 DOI: 10.1109/ICSEEA.2017.8267690

Nur Rohmah, G. Pikra

{"title":"Performance estimation of regenerative organic rankine cycle using heat source from hot spring in Masaingi, Central Sulawesi, Indonesia","authors":"Nur Rohmah, G. Pikra","doi":"10.1109/ICSEEA.2017.8267690","DOIUrl":"https://doi.org/10.1109/ICSEEA.2017.8267690","url":null,"abstract":"Hot spring can be utilized as a heat source to produce electricity using organic Rankine cycle (ORC). Regenerative organic Rankine cycle (RORC) with a single stage turbine is used to improve the system performance of ORC. This paper discusses performance estimation (thermal and exergy efficiency) of single stage turbine RORC using hot spring in Masaingi, Central Sulawesi, Indonesia as a heat source. The energy and exergy analysis of RORC are evaluated and compared with basic ORC (BORC). Temperature and volume flow rate of the hot spring in Masaingi are used as initial data. R245fa has chosen an organic working fluid. Energy analysis is carried out by calculating heat input to determine mass flow rate, net power output, heat output and thermal efficiency. Exergy analysis is carried out by calculating exergy rate balance to determine exergy input, output, and exergy destruction for each component to gain total exergy destruction and exergy efficiency. The results show that performance of RORC system increase with higher hot spring temperature, and constant with higher volume flow rate. Comparison result shows that RORCincreases thermal and exergy efficiency for 23.7% and 23.5%, and decreases total exergy destruction rate by 24.5% than BORC.","PeriodicalId":297700,"journal":{"name":"2017 International Conference on Sustainable Energy Engineering and Application (ICSEEA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130416420","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

Digester unit performance of biogas power system at Baiturrahman Boarding School, West Java, Indonesia 印尼西爪哇Baiturrahman寄宿学校沼气发电系统的沼气池机组性能

2017 International Conference on Sustainable Energy Engineering and Application (ICSEEA) Pub Date : 2017-10-01 DOI: 10.1109/ICSEEA.2017.8267688

A. Wresta, Henny Sudibyo, D. Andriani

{"title":"Digester unit performance of biogas power system at Baiturrahman Boarding School, West Java, Indonesia","authors":"A. Wresta, Henny Sudibyo, D. Andriani","doi":"10.1109/ICSEEA.2017.8267688","DOIUrl":"https://doi.org/10.1109/ICSEEA.2017.8267688","url":null,"abstract":"Study concerning the digester unit of biogas power system at Baiturrahman Boarding School is highly needed to understand the performance and function of each digester in producing biogas. There are six digesters, named as Digester 1, Digester 2, Digester 3, Digester 4, Digester 5, and Digester 6. However, Digester 2 which was purposed for food waste feed has not been operated. The fifth functioning digesters are operated with cow manure and human faeces as raw materials. This research was conducted by analyzing the process parameters, i.e., TS concentration, VFA concentration, slurry pH and thickness, and methane content of biogas produced. The result showed that based on feeding rate of cow manure and human faeces, the retention times of the slurry were significantly longer, more than 25 days for each digester and more than 100 days after the total process in all digesters. This long retention time implied the complete process after two series step in Digester 1, Digester 3, and Digester 4, that was identified by the fact that the degradation process in Digester 5 and Digester 6 did not significantly decrease TS and VFA concentrations. The methane content obtained was lower than previously researches, this might cause due to air entrainment that happens in biogas compression process. It can be concluded that many serial digesters (more than 2) are not necessarily needed if the retention time of the slurry in each digester had been significantly longer.","PeriodicalId":297700,"journal":{"name":"2017 International Conference on Sustainable Energy Engineering and Application (ICSEEA)","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129663399","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

Energy optimization and gas removal selection of geothermal power plant 地热发电厂的能量优化与脱气选择

2017 International Conference on Sustainable Energy Engineering and Application (ICSEEA) Pub Date : 2017-10-01 DOI: 10.1109/ICSEEA.2017.8267683

R. Sinaga, P. Darmanto, Andy Trirakhmadi

{"title":"Energy optimization and gas removal selection of geothermal power plant","authors":"R. Sinaga, P. Darmanto, Andy Trirakhmadi","doi":"10.1109/ICSEEA.2017.8267683","DOIUrl":"https://doi.org/10.1109/ICSEEA.2017.8267683","url":null,"abstract":"Non-condensable gas (NCG) is a part of geothermal fluid that affects geothermal power plant performance. Two scenarios were proposed to extract NCG out of condenser; i.e two-stage steam jet ejector (SJE) intercondenser plus one-stage SJE after condenser (three-stage SJE) and hybrid (combination of two-stage SJE intercondenser and vacuum pump). Both scenarios were optimized by the installation of Variable Frequency Drive (VFD) to hot well pump and cooling tower fan, respectively. Each scenario was analyzed to the wet bulb temperature (WBT) fluctuation. This study modeled the data of Darajat Geothermal Power Plant unit III on load 100% (110 MW) and computed it using Engineering Equation Solver commercial version 9.430. The consideration of both scenarios was analyzed by Specific Steam Consumption net. The result of this study indicated that hybrid system can save 1.11% energy compared with three-stage SJE. It is also found that hybrid system had a possibility to optimize by VFD installation when WBT in 15.5 °C up to 19.5 °C. The highest energy saving was obtained 1.03% compared to constant L/G, on WBT 19.5 °C, where L/G denotes the ratio of inlet water mass flow rate to cooling air inside cooling tower.","PeriodicalId":297700,"journal":{"name":"2017 International Conference on Sustainable Energy Engineering and Application (ICSEEA)","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117060096","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: 2

The effect of initial growth interface on the grain structure in HPMC-Si ingot 初始生长界面对HPMC-Si铸锭晶粒组织的影响

2017 International Conference on Sustainable Energy Engineering and Application (ICSEEA) Pub Date : 2017-10-01 DOI: 10.1109/ICSEEA.2017.8267705

Giri Wahyu Alam, E. Pihan, B. Marie, N. Mangelinck-Noël

{"title":"The effect of initial growth interface on the grain structure in HPMC-Si ingot","authors":"Giri Wahyu Alam, E. Pihan, B. Marie, N. Mangelinck-Noël","doi":"10.1109/ICSEEA.2017.8267705","DOIUrl":"https://doi.org/10.1109/ICSEEA.2017.8267705","url":null,"abstract":"Seeding is an explored way to control the final structure of Silicon PV ingots. In HPMC-Si (High Performance Multi-Crystalline-Silicon) ingots, nucleation on numerous seed grains creates grain boundaries that can terminate the propagation of dislocation clusters. In the present work, we focus on the impact of the initial growth in G2 ingots that were prepared by directional solidification with a seed layer of poly-Si chunks. The subsequent grain structure formation was characterized by photoluminescence, metallography, and EBSD (Electron Back Scatter Diffraction). In the remaining seed region, different photoluminescence intensities are evidenced which reveals the existence of two morphologies, a genuine non-melted seed from the poly-Si chunks, and a region within the seed layer that is generated from re-solidified infiltrated molten silicon. Both grain morphologies in the seed layer have a random orientation and we evidenced that all grains at the solid-liquid interface grow by epitaxy when growth starts. As a consequence, grains in the first growth layer are also randomly oriented. The columnar grains, which grow from wider grains in the seed layer, are larger. During growth competition, these grains reach a higher solidification height compared to grains that grow on narrow seeds. Additionally, the dominant grain boundary types are RAGB (Random Angle Grain Boundary), followed by Σ3 twin boundaries in both seed and growth regions. These results give prospects to improve seed arrangement or coating for application to HPMC-Si process.","PeriodicalId":297700,"journal":{"name":"2017 International Conference on Sustainable Energy Engineering and Application (ICSEEA)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124635629","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: 2

Performance optimization of axial-flow hydraulic turbine using artificial bee colony (ABC) algorithm 基于人工蜂群算法的轴流式水轮机性能优化

2017 International Conference on Sustainable Energy Engineering and Application (ICSEEA) Pub Date : 2017-10-01 DOI: 10.1109/ICSEEA.2017.8267691

Q. M. B. Soesanto, Anjar Susatyo, P. Widiyanto

{"title":"Performance optimization of axial-flow hydraulic turbine using artificial bee colony (ABC) algorithm","authors":"Q. M. B. Soesanto, Anjar Susatyo, P. Widiyanto","doi":"10.1109/ICSEEA.2017.8267691","DOIUrl":"https://doi.org/10.1109/ICSEEA.2017.8267691","url":null,"abstract":"This paper presents the numerical optimization of axial-flow hydraulic turbine performance. The turbine was designed to operate at a net head of 0.9 meters, a rotational speed of 500 rpm, and maximum flow rates are 0.12 m3/s. The initial turbine design was optimized by using shock-free inflow criterion to minimize the hydrofoil losses at the turbine cascades. Potential flow of the hydrofoil was analyzed using surface vorticity model with modified coupling coefficient to deal with turbomachinery blade cascades. The ABC algorithm was used to arrange the geometry of guide vane's and runner blade's cascades to meet the shock-free inflow criterion. In the present study, the cascade geometry optimization of the axial-flow hydraulic turbine is divided into two main steps. Firstly, cascade at each section of guide vane was optimized by arranging two design variables, i.e. stagger angle and chamber line of the hydrodynamic profile. Secondly, cascade at each section of runner blade was optimized by arranging one design variable, i.e., stagger angle. Both steps have the same objective function that minimizes the difference between the design of inlet flow angles and shock-free inflow angles. The optimization results showed that the ABC algorithm performed very well, the average of best values at each section was an order of magnitude of −14. The performance of turbines was predicted using computational fluid dynamics (CFD) approach based on finite volume method. The numerical results showed that the optimization of two-dimensional cascades geometries by using shock-free inflow criterion successfully improved the performance of initial design of axial-flow hydraulic turbine.","PeriodicalId":297700,"journal":{"name":"2017 International Conference on Sustainable Energy Engineering and Application (ICSEEA)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131391683","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: 1

Optimal grid connected hybrid energy system for Egyptian residential area 埃及住宅小区最优并网混合能源系统

2017 International Conference on Sustainable Energy Engineering and Application (ICSEEA) Pub Date : 2017-10-01 DOI: 10.1109/ICSEEA.2017.8267687

Alaaeldin M. Abdelshafy, H. Hassan, Abdelfatah M. Mohamed, G. El-Saady, S. Ookawara

引用次数: 5

Feasibility study of energy conversion system of minihydro scale in Garut Regency, West Java 西爪哇加鲁特县小型水力发电系统的可行性研究

2017 International Conference on Sustainable Energy Engineering and Application (ICSEEA) Pub Date : 2017-10-01 DOI: 10.1109/ICSEEA.2017.8267693

Henny Sudibyo, R. A. Subekti, Anjar Susatyo

{"title":"Feasibility study of energy conversion system of minihydro scale in Garut Regency, West Java","authors":"Henny Sudibyo, R. A. Subekti, Anjar Susatyo","doi":"10.1109/ICSEEA.2017.8267693","DOIUrl":"https://doi.org/10.1109/ICSEEA.2017.8267693","url":null,"abstract":"Garut Regency located in West Java Province has much renewable energy potentials that can be developed. Potential energy in Garut, such as minihydro power plant (MHPP) contained in waterfalls and rivers. The survey was conducted in six locations waterfall and a river flowing village was Giri Mukti, Talegong, Karangsewu, Cikarang, Pakenjeng and Sukajaya in District Cisewu and Pakenjeng. Based on the survey in six locations, it can be seen that the potential of electric power to be developed as a hydro power plant. Potential energy is awakened in Giri Mukti (Cihaur Waterfall) is equal to 1,974 kW, Talegong (Suling Waterfall) 2,264.4 kW, Karangsewu (Munding Waterfall) 775 kW, Cikarang (Aul Waterfall) 518 kW, Pakenjeng (Sang Hyang Pakenjeng Waterfall) 691 kW, and Sukajaya (Cilayu Waterfall) 614 kW. The locations of the six biggest potentials are in Suling Waterfall, Talegong Village of 2,264.4 kW. Techno-economic analysis at 6 locations, there are two decent location that is in the village built Girimukti (Cihaur Waterfall) with a value of 2.08 and in the village of BCR Talegong (Suling Waterfall) with BCR 2.07.","PeriodicalId":297700,"journal":{"name":"2017 International Conference on Sustainable Energy Engineering and Application (ICSEEA)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116521667","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: 1

Response of two DOF weapon system structure mounted on four wheel vehicle 安装在四轮车辆上的二自由度武器系统结构响应

2017 International Conference on Sustainable Energy Engineering and Application (ICSEEA) Pub Date : 2017-10-01 DOI: 10.1109/ICSEEA.2017.8267695

A. Nugraha, M. Hikmawan, E. Junianto, R. I. Pramana

引用次数: 3