Long-Term Performances and Technoeconomic and Environmental Assessment of Al2O3/Water and MWCNT/Oil Nanofluids in Three Solar Collector Technologies

Journal of Nanomaterials ◽

10.1155/2021/6461895 ◽

2021 ◽

Vol 2021 ◽

pp. 1-18

Author(s):

Intissar HARRABI ◽

Mohamed HAMDI ◽

Majdi HAZAMI

Keyword(s):

Solar Collector ◽

Numerical Approach ◽

Major Advance ◽

Solar Collectors ◽

Climate Conditions ◽

Heating Systems ◽

Performance Factors ◽

Long Term Study ◽

Solar Heater

Bringing together nanofluids and solar collectors has been widely discussed without any major advance or long-term study being carried out. In this context, this paper provides a useful feasibility study to help future decisions in using nanofluids in Solar Water Heating Systems (SWHSs) in different locations. The performances of SWHSs using the nanofluid-based flat plate solar collector (FPSC), evacuated tube collector (ETC), and compound parabolic collector (CPC) under the Mediterranean, arctic, and desert climate conditions are presented and discussed. The analysis is carried out using a transient-based numerical approach, solving energy balance equations for different systems. Various performance factors such as energy saving, solar fractions, and environmental impacts of auxiliary energy supplies are evaluated to feasibly assess the use of nanofluids in such devices. Simulation results demonstrate that the use of nanofluids increases the solar heater performance which reduces considerably the payback period ( P P ) of the investment in solar heating systems up to 3.34 years in Tunisian climate. Under Quebec’s climate region, the annualized solar return of the ETC system increases from 4874.65 US$ to 9785.93 US$ by adding 0.06 v% Al2O3 in water. Also, the use of nanofluids in solar collectors with electric auxiliary heaters reduces harmful CO2 emissions up to 0.49 tons/year.

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

Solar Energy ◽

10.1115/isec2004-65058 ◽

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.

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Experience and Prospects of Using Solar Energy for Heating Supply in Russia

Handbook of Research on Renewable Energy and Electric Resources for Sustainable Rural Development - Advances in Environmental Engineering and Green Technologies ◽

10.4018/978-1-5225-3867-7.ch002 ◽

2018 ◽

pp. 26-60

Author(s):

Vitaliy A. Butuzov ◽

Vitaly V. Butuzov ◽

Elena Bryantceva ◽

Ilya Gnatyuk

Keyword(s):

Solar Radiation ◽

Solar Collector ◽

Heat Supply ◽

Solar Collectors ◽

Heating Systems ◽

Solar Heat ◽

Diffuse Solar Radiation ◽

Weather Stations ◽

Heat Supply Systems ◽

Supply Systems

Approaches to the organization of solar heat supply in Russia have a number of differences in comparison with the global experience, in particular, in the field of processing solar radiation data, designing solar collector designs, design techniques, construction and testing of solar heating systems, and the practice of creating and using solar plants. Examples of implementation of projects for creating heat supply systems in different regions of Russia are presented, from the southern (Krasnodar Territory) to the northern (Yakutia). A methodology for converting data for direct and diffuse solar radiation of NASA by taking into account the results of measurements of weather stations, which provides the possibility of their practical use, is presented. Data on the number, types, annual volumes of supplies, and names of producers of solar collectors in Russia are presented. Methodical approaches to the development of solar collectors structures based on the results of comparing the energy consumption for their production with the amount of energy produced by them during their lifetime are considered. A comparative analysis of solar design methodology in Russia and in Europe has been performed. Prospects for the construction of solar heat installations in Russia up to 2030 are considered.

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Calculation Of The Required Capacity Of The Solar Collector In The Combined Heating System Of Buildings, Selection Of The Model And Evaluation Of Cost-Effectiveness

The American Journal of Engineering And Techonology ◽

10.37547/tajet/volume03issue04-05 ◽

2021 ◽

Vol 03 (04) ◽

pp. 31-34

Author(s):

D. Sobirova ◽

◽

M. Karimova ◽

Keyword(s):

Cost Effectiveness ◽

Heat Pump ◽

Thermal Energy ◽

Solar Collector ◽

Heating System ◽

Correct Choice ◽

Solar Collectors ◽

Heating Systems ◽

Water Based ◽

Selection Of

The article calculates the thermal energy required for the correct choice of a heat pump and solar collector, which is part of a combined heating system, and the choice of their type and quantity based on the calculations performed and the profitability of water-based solar collectors, which are part of combined heating systems.

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