检索结果-南通市图书馆

An Improvement in Power Quality and By-Product of the Run-Off River Micro Hydro Power Plant

Energy Engineering 2023年第6期120卷 1295-1305页

作者： Ignatius Riyadi Mardiyanto Jangkung Raharjo Sri Utami wahyu budi mursanto Agoeng Hardjatmo Rahardjo Department of Energy Conversion Bandung State of PolytechnicBandung40559Indonesia School of Electrical Engineering Telkom UniversityBandung40257Indonesia

Utilization of Micro Hydro Power Plant at the Gunung Halu case study type run-off the river is a household use only in the afternoon,around 5 pm until bedtime at about 10 ***,more than 75%of the energy is *** case study lost power which can be used as a by-product,such as for drying coffee *** this case study,a design was carried out to obtain by-products and improve power quality in the electrical *** addition,they complain about the poor quality of power controlled by frequency using Triac-Based Electronic Dummy Load *** heat from the dummy load in the case study is used as a *** with a minimum power of 20 kW,and the usage time of customer service is about 6 *** energy for the by-products is about 360 kWh/day,and the power quality improved by using Triac-Based Electronic Load Control and Hysteresis Current Control for the active *** a result,the power factor is close to one,the generator current harmonics is less than 2%,and the voltage harmonics is less than 5%.

关键词： Electronics load controller triac-based hysteresis current control power quality micro-hydro power

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Rapid Detection of Oil Pollution in Soil by Using Laser-Induced Breakdown Spectroscopy

引用

Plasma Science and Technology 2016年第12期18卷 1186-1191页

作者： Ali KHUMAENI wahyu Setia budi Asep Yoyo WARDAYA Rinda HEDWIG Koo Hendrik KURNIAWAN Department of Physics Faculty of Science and Mathematics Diponegoro University JI. Prof. Soedharto SH. Tembalang Semarang 50275 Indonesia Master Program in Energy School of Postgraduate Studies (SPS) Diponegoro University JI. Imam Barjo SH. Pleburan Semarang 50241 Indonesia Computer Engineering Department Bina Nusantara University K. H. Syahdan 9 Jakarta 11480 Indonesia Research Center of Maju Makmur Mandiri Foundation 40 Srengseng Raya Kembangan Jakarta Barat 11630 Indonesia

Detection of oil pollution in soil has been carried out using laser-induced breakdown spectroscopy（LIBS）. A pulsed neodymium-doped yttrium aluminum garnet（Nd：YAG） laser（1,064 nm, 8 ns, 200 mJ） was focused onto pelletized soil samples. Emission spectra were obtained from oil-contaminated soil and clean soil. The contaminated soil had almost the same spectrum profile as the clean soil and contained the same major and minor elements. However, a C–H molecular band was clearly detected in the oil-contaminated soil, while no C–H band was detected in the clean soil. Linear calibration curve of the C–H molecular band was successfully made by using a soil sample containing various concentrations of oil. The limit of detection of the C–H band in the soil sample was 0.001 mL/g. Furthermore, the emission spectrum of the contaminated soil clearly displayed titanium（Ti） lines, which were not detected in the clean soil. The existence of the C–H band and Ti lines in oil-contaminated soil can be used to clearly distinguish contaminated soil from clean soil. For comparison, the emission spectra of contaminated and clean soil were also obtained using scanning electron microscope-energy dispersive X-ray（SEM/EDX） spectroscopy,showing that the spectra obtained using LIBS are much better than using SEM/EDX, as indicated by the signal to noise ratio（S/N ratio）.

关键词： laser-induced breakdown spectroscopy LIBS oil pollution soil analysis C–H molecular band

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：