Journal of Energy Research and Reviews最新文献

{"title":"Assessing the Feasibility of Gravitational Vortex Turbines for Sustainable Energy Production in Remote Hilly Areas of Bangladesh","authors":"Aung Kyawo, M. I. Khan, Saqibul Islam Chowdhury, Saymun Rahaman","doi":"10.9734/jenrr/2023/v14i4292","DOIUrl":"https://doi.org/10.9734/jenrr/2023/v14i4292","url":null,"abstract":"This research paper presents a comprehensive study of the design, optimization, and performance analysis of a gravitational vortex water turbine for small-scale hydropower applications in the Chittagong Hill Tracts of Bangladesh. The urgent need for cleaner and more efficient energy sources to address global energy challenges drives the development of innovative renewable energy solutions. The proposed turbine harnesses the power of gravity-induced water flow to efficiently convert rotational energy from a water vortex into electrical energy. The research employs advanced computational fluid dynamics (CFD) analysis using ANSYS Fluent to investigate the intricate flow behavior and velocity distribution. Through CFD calculations, the study provides valuable insights into the turbine's performance, allowing for optimization of its design parameters. The influence of blade numbers on turbine efficiency contributes to a better understanding of the turbine's operational characteristics. The paper discusses the advantages of decentralized energy systems and emphasizes the potential of gravitational vortex turbines for small-scale hydropower projects. It highlights the importance of mathematical analysis and performance results, further supported by the CFD analysis, demonstrating the turbine's capabilities. The power outputs achieved by the turbine align with or surpass the potential power capacities of identified small hydro sites, reinforcing its viability as a clean and reliable energy solution. While the research findings showcase the turbine's potential, it emphasizes the need for further feasibility studies and site-specific assessments to ensure successful real-life implementation. The study underscores the significance of utilizing advanced computational techniques in developing efficient and environmentally friendly hydropower solutions. The findings offer lessons for researchers, engineers, and policymakers for cleaner and more sustainable energy sources.","PeriodicalId":244756,"journal":{"name":"Journal of Energy Research and Reviews","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130230820","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}

{"title":"Constitutional and Institutional Governance of Electricity Sector in Nigeria","authors":"O. O. Aguda","doi":"10.9734/jenrr/2023/v14i4291","DOIUrl":"https://doi.org/10.9734/jenrr/2023/v14i4291","url":null,"abstract":"The extensive reform of Nigeria's power industry is focused on deregulation, restructuring, and privatisation. The government started a comprehensive economic reform programme in 1999, which includes this reform. The National Electric Power Policy (NEPP) of 2001 and the Electric Power Sector Reform (EPSR) Act of 2005 both first stated the need for privatising the electricity sector. The privatisation of the entire energy sector made considerable strides in 2013 with the transfer of ownership of six electricity production businesses and eleven electricity distribution companies. The reform has led to the repeal of the EPSR Act 2005 by the enactment of the Electricity Act 2023. This paper therefore seeks to ensure that a reform process is not only set up but prioritized within the Electricity sector. \u0000With the passage of the Privatisation and Commercialization Act in 1988 and the subsequent creation of the Technical Committee for Privatisation and Commercialization (TCPC) in 1993, the reform process got underway. When civilian authority was restored in 1999, the government passed the Public Enterprises (Privatisation and Commercialization) Act, which established the National Council on Privatisation (NCP) as the top policy-making body on privatization-related matters. The Bureau for Public Enterprises (BPE) was created under the Act to serve as the government's technical operator and task manager for its public enterprise reform initiative. \u0000The reform legislation calls for licencing, liberalisation, the unbundling of the public monopoly utility, corporatization, and the commercialization of successor enterprises. The Power Holding Company of Nigeria (PHCN) was established as a holding company. To ensure a competitive electricity market, the law suggests selling generating and distributing enterprises to core investors. \u0000Despite privatisation attempts, Nigeria's electrical supply reliability remains a serious difficulty, and regulation remains an urgent issue. Due to the inconsistent availability of energy, manufacturers continue to rely primarily on diesel generators. Power plant failures have resulted in significant electrical shortages, with daily power outages lasting several hours. \u0000Conclusively, while the Nigerian power sector has undergone significant reforms, there is still a need for further improvements in regulation and electricity supply reliability to address the country's persistent energy challenges and support economic diversification beyond oil production and manufacturing sector collapse.","PeriodicalId":244756,"journal":{"name":"Journal of Energy Research and Reviews","volume":"2016 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116054143","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}

{"title":"An Experimental Study on Biomass Fuel Briquettes’ Quality as a Product of Waste Conversion in Nekede, Owerri, Nigeria","authors":"O. Mong, O. Obi, C. E. Onyeocha, C. Ndubuisi, D. V. Gaven, V. Nnadiegbulam","doi":"10.9734/jenrr/2023/v14i4290","DOIUrl":"https://doi.org/10.9734/jenrr/2023/v14i4290","url":null,"abstract":"This study investigated the quality of biomass fuel briquettes; a Refuse Derived Fuel (RDF) made from bio-wastes generated from a local farm produce market in Nekede, Owerri, Nigeria, known as Umuokomoche daily market. The wastes were mainly waste groceries; vegetable stems, leaves, fruits, plantain peels and stems, yam and potato peels, corn hob and all sorts of discarded food / agro materials which constitute over 70% of the total Municipal Solid Wastes (MSW) generated by the community. The study involved the design, fabrication and installation of a piston-type, hydraulic powered pedal operated Biomass Briquetting Machine. The briquettes produced were tested, in order to ascertain their quality as Refuse Derived Fuels (RDF). The biomass wastes generated were initially gathered, sun dried and carbonized through pyrolysis in a kiln. The biochar was then crushed and mixed with a 20% starch bond and finally fed to the machine as feedstock. The products (briquettes) recorded satisfactory combustion outcomes when tested. The preliminary results showed a calorific value of 4900Kcal/Kg which is adequate as a reliable and alternative energy source for domestic and industrial applications. Other parameters tested are; fixed carbon at 32%, Volatile matter at 44%, Moisture at 5% and are Ash content at 5.02%. A bulk density of 580 kg/m3 and a Compressive ratio of 1:2.5 were also recorded. Both results confirm the handling ability and ease of transportation of the briquettes. Therefore the briquettes are of good quality and reliable as an alternative energy source for domestic and industrial applications.","PeriodicalId":244756,"journal":{"name":"Journal of Energy Research and Reviews","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133049517","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}

{"title":"Design, Fabrication, Testing and Evaluation of a Sustainable Cabinet Dryer for Drying Cassava Chips","authors":"L. O. Agberegha, Elena Trim, T. Bako, F. Onoroh, Clement Siedougha Afoegba, Adenike O. Akinyemi, Bernard Chukwuebuka Izelu, Timothy Bini Oshevire","doi":"10.9734/jenrr/2023/v14i4289","DOIUrl":"https://doi.org/10.9734/jenrr/2023/v14i4289","url":null,"abstract":"The development of a sustainable cassava cabinet dryer requires a balanced approach to technological, economic and ecological aspects. The design – from conceptualization to design and performance  evaluation – considered different input parameters and various  structural design measures for durability and the ability for the selected materials to withstand thermally induced stress resultant on the drying process, in  general and material selection for durable design, in particular. This work sets to design, construct and testing of the cassava chips cabinet dryer.  The outcome of tests performed to evaluate the behaviour of the dryer shows that the drying time lies between 210 minutes and 240 minutes for tray 1 and 300 minutes and 330 minutes for tray 2 when compared to the drying time of sun-drying which lies between 720 minutes and 750 minutes. This shows that there is evidence of loss of moisture in all the cases. However, loss of moisture in tray 1 of the cabinet dryer appears to be better compared to others. In the real essence,    loss of moisture in trays 1 and 2 is expected to occur at the same rate but due to the observed uneven distribution of warm air, and re-absorption of moisture by drying cassava chips, the drying rate differs. Thus, this can be corrected as further improvement on the design. Investment in this design will not only making cassava production much easier and reduce the wastage but will also have a great effect in the economy of the country as recorded to be the highest producer of cassava in the world. This dryer can as well be adapted and used to dry other food items. The optimum time for drying the cassava was estimated to be 133 minutes using multiple regression analysis.","PeriodicalId":244756,"journal":{"name":"Journal of Energy Research and Reviews","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126486287","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}

{"title":"Application and Prospect of Wave Energy in Marine Robots","authors":"Liu Chuan, Shifeng Yuan","doi":"10.9734/jenrr/2023/v14i3287","DOIUrl":"https://doi.org/10.9734/jenrr/2023/v14i3287","url":null,"abstract":"Marine robots are an important tool for developing and exploring the ocean, which can adapt and work in the harsh marine environment. However, energy supply is one of the important factors that limit the operational capabilities of marine robots, and obtaining energy from the marine environment is an important way to improve the operating time and scope of marine robots. Wave energy is the most widely distributed in the ocean, with high energy flow density and easy to develop renewable clean energy. Therefore, wave energy can be used to provide energy for marine robots. Wave energy provides the possibility to solve the problem between the basic endurance and limited energy of marine robots. This paper introduces wave energy, summarizes the application of wave energy in marine robots, and analyzes its development trend, so as to provide reference for energy research of marine robots.","PeriodicalId":244756,"journal":{"name":"Journal of Energy Research and Reviews","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124020076","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}

{"title":"Improvement of Ceramic Insulation of Cook Stoves Using Carbonized Organic Waste","authors":"Esther Kyuvi, James A. Nyangaya, A. Aganda","doi":"10.9734/jenrr/2023/v14i3286","DOIUrl":"https://doi.org/10.9734/jenrr/2023/v14i3286","url":null,"abstract":"Many households and small hotels in Kenya source their energy from biomass; mainly wood and charcoal. For the urban poor, their energy source is basically charcoal. With increasing population, rural urban migration, tough economic times, the use of charcoal must be as efficient as possible. In cognizance of this need, development of energy efficient biomass (charcoal) cook stoves is paramount. The main objective of the project was to optimize the insulating properties of ceramic insulation used in ceramic cook stoves using carbonized organic waste as the burnout additive. Carbonized organic waste herein referred to as char was collected and ground to fine dust. The char was used as a burnout medium in the clay to create pores, reduce density and increase porosity thereby improving insulation properties of the fired clay. Optimization was achieved by using different ratios of clay to char. Testing of biomass cook stove is provided for in ISO- 19867-0; the harmonized laboratory test protocol. The results showed that the apparent porosity of the sample increased from 34% with no char to 87% when the sample had 50% char. On the other hand, the bulk density reduced from 2.8 g/cm3 with no char to 1.2 g/m3 with 50% char. The prototype thermal efficiency was 33% and 25.8% for the control cook stove. The prototype and control cook stove cooking power were 0.97kW and 0.71kW respectively. The prototype PM2.5 emissions estimated to be 76 mg/MJd and CO emissions at 21 g/MJd which were lower than the Kenya standard KS 1814:2019 maximum emission of 137 mg/MJd and 25 g/MJd respectively This study has shown that when clay was mixed with char, there was a significant increase in desirable characteristics, which results in increased efficiency of biomass (charcoal) cook stoves and lower emissions.","PeriodicalId":244756,"journal":{"name":"Journal of Energy Research and Reviews","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123955679","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}

{"title":"An Electrical Efficiency Audit on a Paper Factory with a Focus on Energy Monitoring Systems and Industrial Motors","authors":"Nicolas Toussart","doi":"10.9734/jenrr/2023/v14i3285","DOIUrl":"https://doi.org/10.9734/jenrr/2023/v14i3285","url":null,"abstract":"Earth's average temperature continues to rise, triggering dangerous weather events that occur simultaneously and interact with each other, such as storms, floods, droughts, and wildfires. The main cause of this global warming is the excess of greenhouse gases emitted by human activities. To answer to this climate challenge, most developed countries have taken actions to reduce their carbon footprint. Industry is the third most polluting sector. This article contains research done in a paper industrial site in Belgium to reduce its carbon footprint through energy efficiency. The first part of the paper is a focus on monitoring and targeting system opportunities and barriers. The second part is about motors. Motors are generally among highest consuming equipment in an industrial site. An analysis of motors high efficiency and variable speed drive potential have been done. The savings identified are the following: Financial = $60,336; Environmental = 70.6 CO2 tons (794,000 kWh of electricity, 8.7% of the site electrical consumption). The cost is $128,680 and the payback is 2.3 years.","PeriodicalId":244756,"journal":{"name":"Journal of Energy Research and Reviews","volume":"78 4 Pt 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131130635","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}

{"title":"Identifying and Analyzing the Technical Challenges of Grid Tide Inverters for PV System: A Case Study of Ethiopia and Zambia","authors":"Redate Shawell Endalamaw","doi":"10.9734/jenrr/2023/v14i3284","DOIUrl":"https://doi.org/10.9734/jenrr/2023/v14i3284","url":null,"abstract":"Zambia and Ethiopia are two countries from southern and eastern of Africa due to their geographical location and other factor the environment condition is different. The research aims at identifying and analszing the technical performance issues of Grid tide Inverter (GTI) for PV system due to operating climate and others factors. In Zambia the study focused on the two main solar plants which is under ZESCO national grid at malty facility zone (MFZ), the first one is the 54 megawatts Bangweulu solar power plant by Neon Investment of France, second one is 34MW Ngonye solar photovoltaic (PV) plant. In Ethiopia eight min off-grid site under Ethiopian Electric Utility(EEU) is included. Beltu, Behima, Mino, Ungoge,  Korhele,Tum, Omorate and Kofetu. A survey is conducted focusing on identifying and analyzing the technical performance issues of GTI in the above-mentioned area. \u0000Using Microsoft excel the environmental climate condition, Solar radiation, Air temperature, Rain falls and Wind of the two country Zambia and Ethiopia is investigated and analysedfor each selected site. A questionnaire and a Sime structure interview is conducted. The basic inverter challenges are investigated from the collected data and the problem is analyzed based on the specific inverter data sheet. The data sheet of the inverter for each site under this study. \u0000Finally, the real-time performance of the inverter of the off-grid PV mini-grid system installed in a small remote town in Ethiopia and on-grid PV system from Zambia at multi facility zone is analysed using measured meteorological data. From on- grid and off-grid inverter performance challenges, which the researcher collected from different plant the main ones are climate or environmental effect and also over load. Overload is one of the frequent challenges in koftu, behama and amorita this can be due to high population growth and unexpected power demand from the community.  \u0000Environmental condition affects almost all solar plant site which is under this study. If we compere the climate of east which is Addis Ababa Ethiopia and southern of Africa Zambia Lusaka. The temperature of Lusaka is higher than Addis Ababa by 5.63°C and even in the plant under this study, temperature rise is one of the challenges on the inverter performance, sensitive electronic component bent due to excessive temperature. \u0000On the other side in Ethiopia Addis Ababa excessive rain affect the inverter. Finally, Addis Ababa has about 1.32 times more rainfall than Lusaka, (Addis Ababa’s 79.54mm vs Lusaka’s average of 60.34mm). For that reason, most of the inverter in Ethiopia on the mini off-grid site are affected by heavy rain condition.","PeriodicalId":244756,"journal":{"name":"Journal of Energy Research and Reviews","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126531002","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}

{"title":"Application of WOA-Based LSSVM Model for Wind Speed Prediction in Mianyang, China","authors":"Yiqi Yang, Longfeng Zhang, Xin He","doi":"10.9734/jenrr/2023/v14i3283","DOIUrl":"https://doi.org/10.9734/jenrr/2023/v14i3283","url":null,"abstract":"In recent years, countries have vigorously developed renewable energy resources to alleviate energy shortages and improve the environment. Wind energy, as a clean and renewable new energy source, has been increasing its power generation capacity, but the wind power generation itself has the characteristics of volatility and instability which makes wind power generation more difficult. Therefore, a novel prediction model based on the least squares support vector machine (LSSVM) with whale optimization algorithm (WOA) is proposed in the paper to improve the prediction accuracy and applied to the wind speed prediction in Mianyang. The model is implemented in python language, and then the prediction results are then evaluated quantitatively using the mean absolute percentage error (MAPE), and the results of the proposed model are compared with models such as eXtreme Gradient Boosting (XGBoost), Support Vector Regression (SVR) and Random Forest (RF). Further, the MAPE of the prediction results of the proposed model is about 4.7%-5.5%, which can be 6.3% higher than other models at best. The results show that the proposed prediction model can have good prediction accuracy and generalization performance and can be applied to other fields in the future.","PeriodicalId":244756,"journal":{"name":"Journal of Energy Research and Reviews","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133751417","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}

{"title":"Density Functional Theory Study of the Effect of Mono-Halogen Substitution on Electronic and Non-Linear Optical Properties of Porphyrin","authors":"Zahrau Hamisu Bashir, A. Nura, A. Gidado, M. A. Shariff, Rabiu Nuhu Muhammad","doi":"10.9734/jenrr/2023/v14i2282","DOIUrl":"https://doi.org/10.9734/jenrr/2023/v14i2282","url":null,"abstract":"Porphyrin is an organic macrocycle compound, with a chemical formular (C20H14N4) it act as important components in various technological application like solar cell, due to their flexibility and low production cost. In this work, DFT and TD-DFT were used to investigate the molecular geometry, HOMO-LUMO energy gap, global chemical indices, thermodynamic properties, non-linear optical properties, IR frequencies and IR intensities, open circuit voltage and UV-Vis spectrum of parent and substituted porphyrin molecules were calculated and noted. All the computations were performed by using Gaussian 03 package. Our result for the bond lengths indicates that the strongest bond was found in chloroporphyrin molecule with value of 1.0771(Å) and the highest bond angles was found to be . The calculated value of HOMO-LUMO energy gap shows that porphyrin will be more stable by the substitution of fluoride atom with HOMO-LUMO energy gap of 5.5865eV. The value of energy gap for parent porphyrin molecule (2.8885) eV was found to be very closer to the reported value of (2.920) eV. It was found that the zero point vibrational energy reduces, while the entropy and specific heat capacity of the molecules rises, due to the effect of the substitutions. The non-linear optical properties calculations shows that, the first-order hyperpolarizability  values turn out to be ten times than that of the prototype urea (  esu) molecule, which is commonly used for the comparison of NLO properties with other materials. The computed frequencies and intensities result shows that fluoroporphyrin has slightly higher peak values of frequencies with corresponding intensities than the rest of the substituted porphyrin molecules. The open circuit voltage ranges from 2.0206-4.1568eV in the case of high LUMO and 0.9465-3.0828eV in the case of low LUMO, this value can be applied to organic solar cell. The UV-VIS spectrum, shows that due to the solvent effect there was an increase in the excitation energy and then slight increase in oscillator strength. Our finding shows that the hybrid halogenated compound may be utilized as an application in sensor and solar cells.","PeriodicalId":244756,"journal":{"name":"Journal of Energy Research and Reviews","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130183061","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}