scholarly journals Techno-economic assessment of the use of Linear Fresnel Solar Collectors for the supply of heat in traditional fruits and vegetable processing industries in Almeria’s province

2021 ◽  
Vol 19 ◽  
pp. 511-516
Author(s):  
J.D. Gil ◽  
◽  
J.A. Romero Ramos ◽  
M. Pérez García ◽  
M. Martínez Molina ◽  
...  
Keyword(s):  
Solar Radiation ◽  
Industrial Process ◽  
Economic Assessment ◽  
High Availability ◽  
Solar Collectors ◽  
Complementary Energy ◽  
Local Resources ◽  
Solar Fraction ◽  
Productive Activities ◽  
Solar Plant

This study presents a techno-economic assessment of the use of Linear Fresnel Solar Collectors for the heat supply in traditional fruits and vegetable processing industries in Almeria’s province. This assessment is justified by the high availability of solar radiation in the area under study, the evaluation of complementary energy self-consumption modalities, and the suitability of using local resources for the preservation and improvement of traditional productive activities. The work starts with an identification of the potential user’s needs and their location in the province. Afterward, the solar radiation resources have been estimated as they constitute one of the basic inputs for sizing the proposed systems. Together with the above, representative thermal demands have been considered and different configurations of commercial Linear Fresnel Solar Collector thermal plants aimed to contribute to solarize the analyzed productive processes have been designed and the corresponding techno-economic assessment have been undertaken. Main findings advance the profitability that can be achieved with this technology, reaching, after an optimized integration of the solar plant in the industrial process, a solar fraction between 66-82 % and payback periods of the investment between 6-12 years

A Financial Worksheet for Computing the Cost (¢/kWh) of Solar Electricity Generated at Grid Connected Photovoltaic (PV) Generating Plants

2002 ◽  
Vol 124 (3) ◽  
pp. 319-321 ◽  
Author(s):  
Michael Stavy
Keyword(s):  
Solar Radiation ◽  
Cost Of Capital ◽  
Solar Panel ◽  
Maintenance Costs ◽  
Independent Variables ◽  
Levelized Cost ◽  
Solar Plant ◽  
Dependent Variables ◽  
Solar Electricity ◽  
The Cost

This paper discusses the technical, financial, and economic principles underlying the levelized cost method of computing the cost of solar electricity. Topics include the levelized cost method, solar radiation, solar panel efficiency, depreciation, cost of capital, fixed and variable operating and maintenance costs, and taxes. The paper includes the worksheet, “Levelized Cost Worksheet for a 1 kW Solar Electric Generating Plant.” Its benchmark values are for a model solar plant located in Chicago, IL. The paper discusses these benchmark values as it analyzes the worksheet’s constants (capacity-1 kW, 8,760 hr/yr), independent variables (capital cost-$/kW, cost of capital-%, physical life-yr, standard sun hours, fixed and variable O & M expense), and dependent variables (capital amortization expense, capacity factor, cost of solar electricity).

Development of a new vacuum-based photovoltaic/thermal collector, and its thermal and exergy analyses

2020 ◽  
Vol 4 (12) ◽  
pp. 6251-6273
Author(s):  
Ali Radwan ◽  
Takao Katsura ◽  
Saim Memon ◽  
Essam M. Abo-Zahhad ◽  
O. Abdelrehim ◽  
...  
Keyword(s):  
Solar Radiation ◽  
Electrical Power ◽  
Solar Collectors ◽  
Exergy Analyses

Photovoltaic–thermal (PV/T) solar collectors convert solar radiation into electrical power and heat.

scholarly journals Selecting optimal site for solar photovoltaic plant in Ikwerre L.G.A., Rivers State, Nigeria

2020 ◽  
Vol 5 (2) ◽  
pp. 071-085
Author(s):  
Jeremiah Uriah Richard ◽  
Godwill Tamunobiekiri Pepple
Keyword(s):  
Renewable Energy ◽  
Local Government ◽  
Solar Radiation ◽  
Power Supply ◽  
Road Network ◽  
Local Government Area ◽  
Solar Photovoltaic ◽  
Solar Plant ◽  
Photovoltaic Plant ◽  
Rivers State

Erratic power supply is a serious problem to most part of Rivers State, Nigeria in general and Ikwerre Local Government Area in particular. This situation does not only halt social and economic development of the area but has also given birth to other social vices such as arm robbery, kidnapping, and other criminal activities. Renewable energy is an alternative form of energy aim at alleviating the problems of erratic power supply. It is generally considered as the cleanest form of energy. Solar photovoltaic is a type of renewable energy which derived its energy from the sun. The construction of solar plant requires the selection of suitable location for the generation of optimal energy. The purpose of the study is to determine suitable locations in Ikwerre Local Government Area, Rivers State to site solar photovoltaic plant using multi-criteria analysis (MCA) in ESRI’s ArcGIS. The dataset used for the determination of the optimal sites include; solar radiation and slope map produced from digital terrain model (DTM), pipeline, road network, land use/ cover map, soil map, and settlement. The datasets were converted to raster and reclassed into six classes for the purpose of data integration. The datasets were weighted according to their relative importance in the weighted overlay tool. Solar radiation has the highest percentage influence 40, followed by proximity to pipeline and road network which are 15 each. The model produced four suitability classes ranging from poorly suitable to highly suitable class. Highly suitable class has an area of 10139.87ha with 548 polygons, representing 15.78% of the study area. Further analysis was carried out using highly suitable class and settlement layer, it was found that three (3) optimal sites were obtained as most suitable for sitting solar plant. The three polygons were located in the region with very high solar radiation, accessible to road and away from built-up areas. The above results suggest the usefulness of GIS in site selection, particularly in sitting solar photovoltaic plant. It is recommended that further study should include transmission line which was completely omitted in this analysis due to inability to get the shapefile from the ministry of power.

scholarly journals CURRENT PROBLEMS OF THE ECOSYSTEM ASSETS ASSESSMENT OF TERRITORIAL COMMUNITIES

2021 ◽  
pp. 50-56
Author(s):  
Iryna Patoka
Keyword(s):  
Local Level ◽  
Economic Assessment ◽  
Ecosystem Approach ◽  
Economic Benefits ◽  
Information Support ◽  
Asset Valuation ◽  
Local Resources ◽  
Strategic Approach ◽  
Assets Assessment ◽  
Community Budget

The article is aimed at introduction of the up-to-date approaches to the economic assessment of ecosystems and their implementation while determining the priority tasks of the territorial communities development. The necessity is substantiated of the ecosystems economic assessment for determining the priority tasks of the territory development taking into account the ecosystem approach. It is emphasized that the achievement of the goals of sustainable spatial development at the local level is ensured via full mobilization of all types of local resources, in particular by taking into account the value of ecosystem assets and ecosystem services produced by them in the interests of local communities. The necessity of forming an integrated strategic approach to the introduction of ecosystem asset valuation at the local level is substantiated. The ecosystem assets of territorial communities are proved to be a continuous flow of the community ecosystem resources produced as a result of the system of functionally interconnected components of the natural environment involved in economic circulation, the use of which will contribute to economic benefits. It is shown that the economic assessment of ecosystem assets at the local level makes it possible to assess both the market value and value of ecosystems from direct and indirect use, and to identify real prospects for possible financial revenues to the community budget from their operation. Differentiated are economic approaches to estimate the ecosystem benefits at the local level. The structure and tasks of payments for the biodiversity conservation at the level of territorial communities are studied. The structural scheme of information support for estimating the ecosystem assets values of territorial communities is proposed The tasks of local authorities as to the community ecosystems management are outlined and the stages of assessment of ecosystem assets of the territorial entities are defined. The targets for application of the results of assessment of ecosystem assets of territorial communities have been determined. It is shown that the introduction of an ecosystem approach in the management of communities will contribute to the financial content of local budgets.

Potential and Use of Solar Energy in Primorye Region (Russia)

Solar Energy ◽  
2004 ◽  
Author(s):  
Oleg P. Kovalev ◽  
Alexandr V. Volkov
Keyword(s):  
Solar Radiation ◽  
Solar Energy ◽  
Hot Water ◽  
Solar Collectors ◽  
Heating Systems ◽  
Primorye Region ◽  
Solar Radiation Flux ◽  
Radiation Regime ◽  
The Given

During long-term time, the laboratory of non-traditional energetic is been busy with development and introduction of solar water heating systems for hot water supply. The systems with solar collectors of 40 m2 area have been developed and introducted. For estimation of their efficiency we should know flux density of solar radiation, proceeding to surface at the given place. However in Primorye Region at actinometrical watching only four meteostations in the Southern part are carrying out straight measurements of solar radiation flux, and the others record data which concern only solar radiation regime (the amount of solar radiation hours, relation of watching duration of solar radiation to possible duration, the amount of days without sun, etc.). We suggested the expression, which according to know data of solar radiation and cloudiness, recorded practically on all meteorological stations gives possibility to calculate for Primorye Region month sums of total radiation proceeding to horizontal surface. The comparison of estimated values with measured ones gives the error to 3...9% with regard to average many years values, and are in the range of variability of measured values for separate years. In Primorye Region more than 250 m2 of solar collectors were installed; and among them 150 m2 were developed with the laboratory, to position on 2003.11.01.   NOTE: This paper was presented at the 2004 International Solar Energy Conference and was inadvertently omitted from the 2004 ASME proceedings. The page range refers to the 2005 International Solar Energy Conference Print Proceedings, where it was subsequently published.

scholarly journals Analysis of the Solar Collectors Installation on a Roof of the Small Public Building in Poland, Lithuania and Spain—A Case Study

Proceedings ◽  
2018 ◽  
Vol 2 (20) ◽  
pp. 1272 ◽  
Author(s):  
Dorota Anna Krawczyk ◽  
Mirosław Żukowski ◽  
Antonio Rodero ◽  
Ruta Bilinskiene
Keyword(s):  
Solar Radiation ◽  
Tilt Angle ◽  
Solar Collector ◽  
Simulation Software ◽  
Hot Water ◽  
Government Support ◽  
Office Building ◽  
Radiation Balance ◽  
Solar Collectors

A solar collector market is most European countries is at the stage of continuous development, however its expansion rate differs. It shows that much more factors than only the local solar radiation is important, including a technology progress, costs, local manufactures’ engagement, an economic government support or an environmentally consciousness raising relevant to a mitigating climate change. We conducted the analysis for a public office building, with a few toilets and a social room, used by 54 people. As a primary heat source for HVAC and DHW systems an oil boiler was used, whereas solar collectors were considered as an energy source for hot water preparation. The analysis was conducted for three locations of the building: Bialystok (Poland), Cordoba (Spain) and Kaunas (Lithuania), using a simulation software delivered within the framework of VIPSKILLS project. Theoretical hot water consumption was considered as 3–7 dm3/(day person) in compliance with national recommendations. It was found that beam solar radiation share in a total radiation balance was nearly twice higher in Cordoba than in Bialystok or Kaunas. The highest efficiency (44%) was estimated in Cordoba for solar collectors installed with the tilt angle between 45–50°. In case of Bialystok and Kaunas the efficiency was lower than in Cordoba and nearly equal 40–41% and the recommended tilt angle was in a range 30– 45°.

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