Revista de la Invención Técnica最新文献

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Analysis of electricity generation in domestic photovoltaic systems, from the perspective of energy cost savings 从节约能源成本的角度对国内光伏发电系统进行分析

Revista de la Invención Técnica Pub Date : 2021-06-30 DOI: 10.35429/joti.2021.15.5.16.21

Norma Angélica Álvarez Torres, Verónica Alida Romo García, P. Prado-Martínez, Juan Luis Coronado-Palomares

{"title":"Analysis of electricity generation in domestic photovoltaic systems, from the perspective of energy cost savings","authors":"Norma Angélica Álvarez Torres, Verónica Alida Romo García, P. Prado-Martínez, Juan Luis Coronado-Palomares","doi":"10.35429/joti.2021.15.5.16.21","DOIUrl":"https://doi.org/10.35429/joti.2021.15.5.16.21","url":null,"abstract":"Currently, it is increasingly common to find distributed generation systems in Mexico, especially in places where the cost of electricity becomes high, such as in cities with extreme temperatures that require air conditioning systems throughout the year. The present work aims to analyze four photovoltaic solar systems for domestic use, to determine if there is an economic benefit as a result, in the city of Nogales, Sonora. For which it was necessary to interpret the data of the payment receipt, visit the locations to obtain the installation characteristics and make a comparison between the monitored data and the calculated one. One of the outstanding results was that the difference in inclination angle in a range of ± 10 degrees basically did not affect the efficiency of the systems. In addition to a case with a high energy cost, due that the consumption is greater than the generation of the SSFV. This work contributes with important information to the community, so that better decisions can be made regarding how to reduce the cost of energy used in homes, as it can be approached from the point of view of installing an SSFV and awareness of energy use.","PeriodicalId":197208,"journal":{"name":"Revista de la Invención Técnica","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116820302","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

Methodology to carry out an analysis of damage caused by wear of blades of axial compressor on a marine gas turbine 船用燃气轮机轴向压气机叶片磨损损伤分析方法

Revista de la Invención Técnica Pub Date : 2021-06-30 DOI: 10.35429/joti.2021.15.5.1.7

L. Y. Villagrán-Villegas, Xóchitl Siordia-Vásquez, M. Patiño-Ortiz, V. Velázquez-Martínez

{"title":"Methodology to carry out an analysis of damage caused by wear of blades of axial compressor on a marine gas turbine","authors":"L. Y. Villagrán-Villegas, Xóchitl Siordia-Vásquez, M. Patiño-Ortiz, V. Velázquez-Martínez","doi":"10.35429/joti.2021.15.5.1.7","DOIUrl":"https://doi.org/10.35429/joti.2021.15.5.1.7","url":null,"abstract":"The objective of this research was to reduce cost of maintenance in this equipment. Analysis on a blade of gas turbine was performed, which was in operation on an offshore platform. Compressor blade was exposed to a severe damage by the impact of particles and environmental pollutants such as salts, sands and sulphurs. In first stage of this analysis, a visual inspection with a borescope was effected. Images analysis was used to determine the typical failure modes. A tribological characterization was carried out. Chemical composition of the material of blades was obtained. Scanning electron microscopy (SEM) was used to measure chemical properties and evaluate degradation of surfaces of blades after 30,000 service hours. The points, where there are the points in which failures take place. Results showed wear modes were originated by a severe stinging action. Also, large craters, similar to those observed in solid particle erosion, were developed by at normal impact. In the same way it could be found some localized areas with corrosion and irregular scratches like plowing action, was observed; these are the points in which failures take place.","PeriodicalId":197208,"journal":{"name":"Revista de la Invención Técnica","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133845747","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

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