Pub Date : 2018-10-01DOI: 10.23919/ICUE-GESD.2018.8635714
A. Putri, B. Leksono
Nyamplung (Calophyllum inophyllum L.) is a potential tree for renewable world energy resources, producing future generation biofuel plants. Propagation technique is required for large scale plantation with highest oil yield of nyamplung. In this study, tissue culture techniques were used for evaluated the optimized nyamplung growth hormone. Shoots rejuvenation were used as explant in MS media enriched with NAA 0.5 mgL−1, 1 mgL−1; 1.5 mgL−1; BAP 1 mgL−1, 2 mgL−1 and 3 mgL−1 and Kinetin 0.15 mgL−1. Shoot and root were induced on the all media used after 10 months incubation. The highest shoot elongation was MS media enriched with 0.5 mgL−1 NAA, 1 mgL−1 BAP and 0.15 mgL−1 Kinetin (10.54 ± 1.98 cm) and the highest root elongation was also in this media (4.65 ± 0.68 cm). Although all the explants rooted after 3 months, in this same media induced a faster root differentiation than the other treatments. NAA concentration higher than 0.5 mgL−1 had no effect on the sprouting process. BAP concentration higher than 3 mgL−1 inhibited callus inductions. The low rates of mortality of rooted plantlets were observed in acclimatization (98 % plants live and grow well up to 6 months of observation). The best hormone concentration of nyamplung media regeneration was expected the highest multiplication for mass micro propagation.
{"title":"In Vitro Growth of Nyamplung (Callophylum inophyllum): The Future Generation Biofule Plants","authors":"A. Putri, B. Leksono","doi":"10.23919/ICUE-GESD.2018.8635714","DOIUrl":"https://doi.org/10.23919/ICUE-GESD.2018.8635714","url":null,"abstract":"Nyamplung (Calophyllum inophyllum L.) is a potential tree for renewable world energy resources, producing future generation biofuel plants. Propagation technique is required for large scale plantation with highest oil yield of nyamplung. In this study, tissue culture techniques were used for evaluated the optimized nyamplung growth hormone. Shoots rejuvenation were used as explant in MS media enriched with NAA 0.5 mgL<sup>−1</sup>, 1 mgL<sup>−1</sup>; 1.5 mgL<sup>−1</sup>; BAP 1 mgL<sup>−1</sup>, 2 mgL<sup>−1</sup> and 3 mgL<sup>−1</sup> and Kinetin 0.15 mgL<sup>−1</sup>. Shoot and root were induced on the all media used after 10 months incubation. The highest shoot elongation was MS media enriched with 0.5 mgL<sup>−1</sup> NAA, 1 mgL<sup>−1</sup> BAP and 0.15 mgL<sup>−1</sup> Kinetin (10.54 ± 1.98 cm) and the highest root elongation was also in this media (4.65 ± 0.68 cm). Although all the explants rooted after 3 months, in this same media induced a faster root differentiation than the other treatments. NAA concentration higher than 0.5 mgL<sup>−1</sup> had no effect on the sprouting process. BAP concentration higher than 3 mgL<sup>−1</sup> inhibited callus inductions. The low rates of mortality of rooted plantlets were observed in acclimatization (98 % plants live and grow well up to 6 months of observation). The best hormone concentration of nyamplung media regeneration was expected the highest multiplication for mass micro propagation.","PeriodicalId":6584,"journal":{"name":"2018 International Conference and Utility Exhibition on Green Energy for Sustainable Development (ICUE)","volume":"39 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86865159","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 : 2018-10-01DOI: 10.23919/ICUE-GESD.2018.8635707
Alpesh M. Patel, Sunil Kumar Singal
The various needs of human domiciled in the isolated rural areas can be fulfilled using locally available renewable energy (RE) sources especially when a grid extension becomes economically unviable. The off-grid rural electrification using single RE source may not be economical and reliable due to the intermittent operating characteristics of the major RE sources. The integrated system designed using two or more indigenous RE sources along with the energy storage device can overcome the demerits of single RE source-based system. This paper aims to present a review on implementation methodology of the integrated renewable energy system (IRES) modeling for off-grid rural electrification. In this context, a review on the earlier studies conducted on the IRES for off-grid rural electrification has been carried out, and the discussion on the various configurations, design approach, and the steps involved in modeling methodology of the off-grid IRES has been presented, which can be useful for planning the off-grid IRES to electrify the remote rural areas. This study will be useful to the researchers working on RE sources based stand-alone power generation for remote rural areas.
{"title":"Implementation Methodology of Integrated Renewable Energy System Modeling for Off-grid Rural Electrification: A review","authors":"Alpesh M. Patel, Sunil Kumar Singal","doi":"10.23919/ICUE-GESD.2018.8635707","DOIUrl":"https://doi.org/10.23919/ICUE-GESD.2018.8635707","url":null,"abstract":"The various needs of human domiciled in the isolated rural areas can be fulfilled using locally available renewable energy (RE) sources especially when a grid extension becomes economically unviable. The off-grid rural electrification using single RE source may not be economical and reliable due to the intermittent operating characteristics of the major RE sources. The integrated system designed using two or more indigenous RE sources along with the energy storage device can overcome the demerits of single RE source-based system. This paper aims to present a review on implementation methodology of the integrated renewable energy system (IRES) modeling for off-grid rural electrification. In this context, a review on the earlier studies conducted on the IRES for off-grid rural electrification has been carried out, and the discussion on the various configurations, design approach, and the steps involved in modeling methodology of the off-grid IRES has been presented, which can be useful for planning the off-grid IRES to electrify the remote rural areas. This study will be useful to the researchers working on RE sources based stand-alone power generation for remote rural areas.","PeriodicalId":6584,"journal":{"name":"2018 International Conference and Utility Exhibition on Green Energy for Sustainable Development (ICUE)","volume":"99 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81037935","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 : 2018-10-01DOI: 10.23919/ICUE-GESD.2018.8635669
Orhan Çoban, Fatma Nur Yorgancıla, Ayşe Çoban
Energy is a fundamental factor in increasing individual and social well-being. The sustainability of growth depends on the diversification of energy resources. Dependence on foreign energy, such as Turkey’s national income in countries with high employment, investment opportunities, environmental factors, and the importance of security of energy supply in areas such as renewable energy resource diversification is increasing with each passing day. In this study, by considering Turkey’s renewable energy potential, it aimed to analyze the relationship of economic growth-renewable energy consumption.According to the results of the analysis, all the variables except for GDP-GEO variables have reached to the result that they act together in the long run. In addition, a one-way causality relationship between GDP, WIND, SOLAR and HYDRO was established and it was determined that BIOMASS and HYDRO variables are positive and GEO variable has negative effect on GDP.
{"title":"Relationship between Renewable Energy Consumption and Sustainable Economic Growth: The Case of Turkey","authors":"Orhan Çoban, Fatma Nur Yorgancıla, Ayşe Çoban","doi":"10.23919/ICUE-GESD.2018.8635669","DOIUrl":"https://doi.org/10.23919/ICUE-GESD.2018.8635669","url":null,"abstract":"Energy is a fundamental factor in increasing individual and social well-being. The sustainability of growth depends on the diversification of energy resources. Dependence on foreign energy, such as Turkey’s national income in countries with high employment, investment opportunities, environmental factors, and the importance of security of energy supply in areas such as renewable energy resource diversification is increasing with each passing day. In this study, by considering Turkey’s renewable energy potential, it aimed to analyze the relationship of economic growth-renewable energy consumption.According to the results of the analysis, all the variables except for GDP-GEO variables have reached to the result that they act together in the long run. In addition, a one-way causality relationship between GDP, WIND, SOLAR and HYDRO was established and it was determined that BIOMASS and HYDRO variables are positive and GEO variable has negative effect on GDP.","PeriodicalId":6584,"journal":{"name":"2018 International Conference and Utility Exhibition on Green Energy for Sustainable Development (ICUE)","volume":"12 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85561032","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 : 2018-10-01DOI: 10.23919/ICUE-GESD.2018.8635602
V. Sewdien, M. V. D. van der Meijden, T. Breithaupt, L. Hofmann, D. Herwig, A. Mertens, B. W. Tuinema, J. R. Rueda Torres
Power systems throughout the world are experiencing increasing levels of power electronics interfaced generation in their generation portfolio. As these devices have a significantly different dynamic behavior than conventional synchronous generators, it is expected that this trend will pose power system stability related challenges. This paper presents the results of a questionnaire conducted within the MIGRATE project. The aim of this questionnaire, to which more than 20 European transmission system operators (TSOs) responded, was to identify and prioritize these challenges. The TSOs identified challenges related to rotor angle stability (two), frequency stability (three), voltage stability (five), and power electronics interactions and resonances (two). In a follow-up survey, the TSOs were asked to rank the challenges based on their severity, probability of occurrence, and time of manifestation. The decrease of inertia was ranked the highest among the 11 issues. Additionally, the TSOs gave insight into current practices with regards to system monitoring and analysis. Based on the ranking, mitigation measures are currently being designed in order to facilitate an even higher amount of power electronics interfaced renewable energy sources in the power system.
{"title":"Effects of Increasing Power Electronics on System Stability: Results from MIGRATE Questionnaire","authors":"V. Sewdien, M. V. D. van der Meijden, T. Breithaupt, L. Hofmann, D. Herwig, A. Mertens, B. W. Tuinema, J. R. Rueda Torres","doi":"10.23919/ICUE-GESD.2018.8635602","DOIUrl":"https://doi.org/10.23919/ICUE-GESD.2018.8635602","url":null,"abstract":"Power systems throughout the world are experiencing increasing levels of power electronics interfaced generation in their generation portfolio. As these devices have a significantly different dynamic behavior than conventional synchronous generators, it is expected that this trend will pose power system stability related challenges. This paper presents the results of a questionnaire conducted within the MIGRATE project. The aim of this questionnaire, to which more than 20 European transmission system operators (TSOs) responded, was to identify and prioritize these challenges. The TSOs identified challenges related to rotor angle stability (two), frequency stability (three), voltage stability (five), and power electronics interactions and resonances (two). In a follow-up survey, the TSOs were asked to rank the challenges based on their severity, probability of occurrence, and time of manifestation. The decrease of inertia was ranked the highest among the 11 issues. Additionally, the TSOs gave insight into current practices with regards to system monitoring and analysis. Based on the ranking, mitigation measures are currently being designed in order to facilitate an even higher amount of power electronics interfaced renewable energy sources in the power system.","PeriodicalId":6584,"journal":{"name":"2018 International Conference and Utility Exhibition on Green Energy for Sustainable Development (ICUE)","volume":"154 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86272150","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 : 2018-10-01DOI: 10.23919/ICUE-GESD.2018.8635780
Nur Hafizah Tul Huda Ahmad, Mohd Zamri Ibrahim, S. J. Rahman, A. Albani, S. Mohad
This paper presents the conceptual model for 40 kW off-grid UMT Eco Wave Energy System (UEW) to generate the electricity. The idea of this concept is based on the shoreline floater types of wave energy converter. It consists the modelling of a heaving oscillation floater, hydraulic and electric power take off (PTO) system which suitable for Terengganu shoreline. The linear wave theory is applied to model the hydrodynamic behaviour of this system. In addition, the simulation of hydraulic and electric power takes off system via Simhydraulic Software based on Simscape platform product for the Simulink Physical Modelling are also discussed
{"title":"The Development of Wave Energy Converter System Using Hydraulic Power Take Off at Terengganu Shoreline","authors":"Nur Hafizah Tul Huda Ahmad, Mohd Zamri Ibrahim, S. J. Rahman, A. Albani, S. Mohad","doi":"10.23919/ICUE-GESD.2018.8635780","DOIUrl":"https://doi.org/10.23919/ICUE-GESD.2018.8635780","url":null,"abstract":"This paper presents the conceptual model for 40 kW off-grid UMT Eco Wave Energy System (UEW) to generate the electricity. The idea of this concept is based on the shoreline floater types of wave energy converter. It consists the modelling of a heaving oscillation floater, hydraulic and electric power take off (PTO) system which suitable for Terengganu shoreline. The linear wave theory is applied to model the hydrodynamic behaviour of this system. In addition, the simulation of hydraulic and electric power takes off system via Simhydraulic Software based on Simscape platform product for the Simulink Physical Modelling are also discussed","PeriodicalId":6584,"journal":{"name":"2018 International Conference and Utility Exhibition on Green Energy for Sustainable Development (ICUE)","volume":"8 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84565017","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 : 2018-10-01DOI: 10.23919/ICUE-GESD.2018.8635737
E. F. Nugrahani, Q. M. Arifianti, N. A. Pratiwi, Kuntum Khoiro Ummatin
Most fishermen in Gresik, East Java, Indonesia used open air bamboo wicker as a conventional solar fish dryer. However, the dryer has weakness such as need long time to dry and cleanliness issue. The condition raises the idea of designing and manufacturing solar cabinet dryer to improve efficiency and overcome the weaknesses in a conventional fish dryer. The solar cabinet dryer contains 3 kg fish and designed in 3 shelf collectors which are equipped with mirror to maximize solar radiation. The fish dried to below 40% of moisture content based on Indonesian National Standard. Dryer performance is measured from drying rate and efficiency. It found that the drying rate per hour was 18.93%, 20.81%, 20.92% mass/hour for 30°, 45° and 60° mirror angle respectively. Highest efficiency performance of solar cabinet dryer was 34.94%. In cleanliness issue showed a decrease of 25.1 × 106 bacteria colonies/gr on conventional drying to 19.5×106 bacteria colonies/gr on designed solar fish dryer.
{"title":"Experimental Analysis of Solar Cabinet Dryer for Fish Processing in Gresik, Indonesia","authors":"E. F. Nugrahani, Q. M. Arifianti, N. A. Pratiwi, Kuntum Khoiro Ummatin","doi":"10.23919/ICUE-GESD.2018.8635737","DOIUrl":"https://doi.org/10.23919/ICUE-GESD.2018.8635737","url":null,"abstract":"Most fishermen in Gresik, East Java, Indonesia used open air bamboo wicker as a conventional solar fish dryer. However, the dryer has weakness such as need long time to dry and cleanliness issue. The condition raises the idea of designing and manufacturing solar cabinet dryer to improve efficiency and overcome the weaknesses in a conventional fish dryer. The solar cabinet dryer contains 3 kg fish and designed in 3 shelf collectors which are equipped with mirror to maximize solar radiation. The fish dried to below 40% of moisture content based on Indonesian National Standard. Dryer performance is measured from drying rate and efficiency. It found that the drying rate per hour was 18.93%, 20.81%, 20.92% mass/hour for 30°, 45° and 60° mirror angle respectively. Highest efficiency performance of solar cabinet dryer was 34.94%. In cleanliness issue showed a decrease of 25.1 × 106 bacteria colonies/gr on conventional drying to 19.5×106 bacteria colonies/gr on designed solar fish dryer.","PeriodicalId":6584,"journal":{"name":"2018 International Conference and Utility Exhibition on Green Energy for Sustainable Development (ICUE)","volume":"64 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75434766","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 : 2018-10-01DOI: 10.23919/ICUE-GESD.2018.8635723
Q. A. M. Okta Arifianti, M. R. Abidin, E. F. Nugrahani, K. Ummatin
Refuse Derived Fuel (RDF) is a potential alternative energy made from municipal solid waste (MSW). RDF could partially substitute coal in industries that use combustion equipment, for example in cement manufacturing industries. The optimal moisture content for solid fuel is around 10-20%. However, RDF that supplied in one of Indonesian cement industries reached moisture content almost 30%. A solar dryer has been built and tested to reduce the moisture content of RDF. Its parts were a greenhouse type tunnel drying unit with fiber plastic cover and electrical axial fans. In this experiment, the effect of three fan modes on the thermal efficiency were also investigated. The modes were operating one fan, two fans, and without fan. The solar dryer had dimensions of 2 m x 1.5 m x 0.8 m (length x width x height). The mass of RDF was 20 kg. The efficiency was calculated using the measured experimental data, i.e. environment temperature, room temperature, air velocity, solar irradiation, and relative humidity. The result revealed that the lowest moisture content produced by the dryer reached to 14.75%. Furthermore, the thermal efficiency could increase up to about 17.07% by using two fans mode.
{"title":"Experimental Investigation of a Solar Greenhouse Dryer Using Fiber Plastic Cover to Reduce the Moisture Content of Refuse Derived Fuel in an Indonesian Cement Industry","authors":"Q. A. M. Okta Arifianti, M. R. Abidin, E. F. Nugrahani, K. Ummatin","doi":"10.23919/ICUE-GESD.2018.8635723","DOIUrl":"https://doi.org/10.23919/ICUE-GESD.2018.8635723","url":null,"abstract":"Refuse Derived Fuel (RDF) is a potential alternative energy made from municipal solid waste (MSW). RDF could partially substitute coal in industries that use combustion equipment, for example in cement manufacturing industries. The optimal moisture content for solid fuel is around 10-20%. However, RDF that supplied in one of Indonesian cement industries reached moisture content almost 30%. A solar dryer has been built and tested to reduce the moisture content of RDF. Its parts were a greenhouse type tunnel drying unit with fiber plastic cover and electrical axial fans. In this experiment, the effect of three fan modes on the thermal efficiency were also investigated. The modes were operating one fan, two fans, and without fan. The solar dryer had dimensions of 2 m x 1.5 m x 0.8 m (length x width x height). The mass of RDF was 20 kg. The efficiency was calculated using the measured experimental data, i.e. environment temperature, room temperature, air velocity, solar irradiation, and relative humidity. The result revealed that the lowest moisture content produced by the dryer reached to 14.75%. Furthermore, the thermal efficiency could increase up to about 17.07% by using two fans mode.","PeriodicalId":6584,"journal":{"name":"2018 International Conference and Utility Exhibition on Green Energy for Sustainable Development (ICUE)","volume":"44 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90718383","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 : 2018-10-01DOI: 10.23919/ICUE-GESD.2018.8635604
K. Ummatin, D. A. Yakin, Q. O. Arifianti, E. F. Nugrahani
To decrease the amount of solid waste in Gresik city, a solid waste processing machine was installed in final disposal sites. One of the machine products, Refuse Derived Fuel (RDF), a kind of biomass that can be used as coal substitute in cement plants. This program will be implemented successfully if RDF is produced continually and also has lower moisture. The initial design of the machine yielded 3.3 tonnes of RDF per hour with 10% moisture content and caloric value more than 4800 kcal/ kg. Nonetheless, for subsequent process, the machine could produce only 3 tonnes of RDF per day with a significant increase of moisture content (around 30%) and caloric value less than 4800 kcal/ kg. This problem might appear due to the existence of impurity (sand, gravel) in RDF and waste in the wet condition. According to this issue, an alternative technology that could be applied to fix the problems is hydrothermal technology. To execute this idea, a feasibility study should be assessed, especially related to the financial aspect. The assessment would be analyzed by using calculation how much opportunity cost generated from substitution of coal with RDF, Net Present Value (NPV), Payback Period (PBP), and Internal Rate of Return (IRR) against Weighted Average Cost of Capital (WACC). The financial analysis shows that a renewal waste treatment system with hydrothermal technology could improve RDF production capacity and maximize the profit.
{"title":"Financial Analysis of Renewal Waste Treatment System with Hydrothermal Technology (A Case Study in Waste to Zero Project in a Cement Industry)","authors":"K. Ummatin, D. A. Yakin, Q. O. Arifianti, E. F. Nugrahani","doi":"10.23919/ICUE-GESD.2018.8635604","DOIUrl":"https://doi.org/10.23919/ICUE-GESD.2018.8635604","url":null,"abstract":"To decrease the amount of solid waste in Gresik city, a solid waste processing machine was installed in final disposal sites. One of the machine products, Refuse Derived Fuel (RDF), a kind of biomass that can be used as coal substitute in cement plants. This program will be implemented successfully if RDF is produced continually and also has lower moisture. The initial design of the machine yielded 3.3 tonnes of RDF per hour with 10% moisture content and caloric value more than 4800 kcal/ kg. Nonetheless, for subsequent process, the machine could produce only 3 tonnes of RDF per day with a significant increase of moisture content (around 30%) and caloric value less than 4800 kcal/ kg. This problem might appear due to the existence of impurity (sand, gravel) in RDF and waste in the wet condition. According to this issue, an alternative technology that could be applied to fix the problems is hydrothermal technology. To execute this idea, a feasibility study should be assessed, especially related to the financial aspect. The assessment would be analyzed by using calculation how much opportunity cost generated from substitution of coal with RDF, Net Present Value (NPV), Payback Period (PBP), and Internal Rate of Return (IRR) against Weighted Average Cost of Capital (WACC). The financial analysis shows that a renewal waste treatment system with hydrothermal technology could improve RDF production capacity and maximize the profit.","PeriodicalId":6584,"journal":{"name":"2018 International Conference and Utility Exhibition on Green Energy for Sustainable Development (ICUE)","volume":"694 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76884630","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 : 2018-10-01DOI: 10.23919/ICUE-GESD.2018.8635674
D. Bellan
This work deals with the analytical solution of transients in single-line-to-ground faults in three-phase power systems through the Clarke transformation. The proposed approach is based on the Thevenin representation of the alpha, beta, and zero component circuits in the Laplace domain. The fault results in a mutual coupling of such circuits. For the single-line-to-ground fault the circuit coupling can be represented by an ideal transformer connected between the alpha and the zero component circuits. The proposed systematic methodology, however, can be readily extended to other kinds of faults. The analytical solution derived in the paper is validated through Matlab simulations in the time domain.
{"title":"Transient Analysis of Single-Line-to-Ground Faults in Three-Phase Circuits Using Clarke Transformation","authors":"D. Bellan","doi":"10.23919/ICUE-GESD.2018.8635674","DOIUrl":"https://doi.org/10.23919/ICUE-GESD.2018.8635674","url":null,"abstract":"This work deals with the analytical solution of transients in single-line-to-ground faults in three-phase power systems through the Clarke transformation. The proposed approach is based on the Thevenin representation of the alpha, beta, and zero component circuits in the Laplace domain. The fault results in a mutual coupling of such circuits. For the single-line-to-ground fault the circuit coupling can be represented by an ideal transformer connected between the alpha and the zero component circuits. The proposed systematic methodology, however, can be readily extended to other kinds of faults. The analytical solution derived in the paper is validated through Matlab simulations in the time domain.","PeriodicalId":6584,"journal":{"name":"2018 International Conference and Utility Exhibition on Green Energy for Sustainable Development (ICUE)","volume":"24 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81613996","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 : 2018-10-01DOI: 10.23919/ICUE-GESD.2018.8635684
D. Lakshmi, A. Layek, P. Muthukumar
A mixed mode forced convection solar dryer (MFSCD) integrated with double pass counterflow solar air heaters was developed in-house for drying of high valued Moringa Oleifera and Stevia rebaudiana leaves. Experiments were carried out to evaluate the convective heat transfer coefficient of the samples in the developed solar dryer and under open sun drying (OSD). From the analysis, the average convective heat transfer coefficient of the leaves in the MFSCD are found to be 4.93 and 4.22 W/m2-K for Moringa and Stevia leaves and in OSD the average values are 1.31 and 1.25 W/m2-K, respectively. The efficiency of the mixed mode solar dryer was found to be 26.4 %. The proximate analysis for the protein and fiber content of the experimental samples concludes that the crude protein and crude fiber of solar dried samples are better than the sun-dried ones.
{"title":"Evaluation of Convective Heat Transfer Coefficient of Herbs Dried in a Mixed Mode Solar Dryer","authors":"D. Lakshmi, A. Layek, P. Muthukumar","doi":"10.23919/ICUE-GESD.2018.8635684","DOIUrl":"https://doi.org/10.23919/ICUE-GESD.2018.8635684","url":null,"abstract":"A mixed mode forced convection solar dryer (MFSCD) integrated with double pass counterflow solar air heaters was developed in-house for drying of high valued Moringa Oleifera and Stevia rebaudiana leaves. Experiments were carried out to evaluate the convective heat transfer coefficient of the samples in the developed solar dryer and under open sun drying (OSD). From the analysis, the average convective heat transfer coefficient of the leaves in the MFSCD are found to be 4.93 and 4.22 W/m2-K for Moringa and Stevia leaves and in OSD the average values are 1.31 and 1.25 W/m2-K, respectively. The efficiency of the mixed mode solar dryer was found to be 26.4 %. The proximate analysis for the protein and fiber content of the experimental samples concludes that the crude protein and crude fiber of solar dried samples are better than the sun-dried ones.","PeriodicalId":6584,"journal":{"name":"2018 International Conference and Utility Exhibition on Green Energy for Sustainable Development (ICUE)","volume":"24 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77936707","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}
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