Modelling and performance analysis of linear fresnel collector for process heat generation for ice cream factory in Konya

Download

index.pdf

Date

2017

Author

Singh, Rahul

Metadata

Show full item record

Item Usage Stats

375
views

175
downloads

In this thesis, a linear Fresnel collector has been designed to supply solar heat for industrial process. Firstly, optical analysis using ray tracing is done to determine the effects of collector’s parameters, such as height of receiver, mirror width and profile, gap between adjacent rows and slope deviation. Afterwards, one-dimensional thermal model is presented which predicts surface temperatures of receiver components and heat loss. The results obtained from both optical and thermal studies are then benchmarked against published data and then applied to design a linear Fresnel collector for an ice cream factory located in Konya (Turkey). The collector’s thermal performance is investigated for different weather conditions along with monthly outputs. Furthermore, flux distribution on absorber tube for different sun positions is studied as well. According to parametric study, slightly curved mirrors are able to collect significantly more solar energy compared to flat ones and optimal optical efficiency is achieved for particular range of collector parameters. The peak thermal efficiency and maximum solar fraction is found to be 66.35% and 33.6% (in July) respectively. Additionally, it is observed that most of the solar radiation is concentrated on the bottom section of the absorber tube; however, same is not true for high values of incidence angle. Therefore, non-uniform flux distribution should be taken into consideration for more accurate thermal analysis of the receiver.

Subject Keywords

Solar energy., Solar heating., Solar thermal energy.

URI

http://etd.lib.metu.edu.tr/upload/12620804/index.pdf
https://hdl.handle.net/11511/26362

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

Modelling, transient simulation and parametric study of parabolic trough collector with thermal energy storage Akba, Tufan; Güvenç Yazıcıoğlu, Almıla; Baker, Derek Keıth; Department of Mechanical Engineering (2014) In this thesis, a mathematical model of a parabolic trough collector field with a two-tank molten salt thermal energy storage is developed. The model is built in TRNSYS and by using MatLab, novel valve and thermal energy storage control algorithms are implemented. The model is sensitive to transient states inside the components and variations in weather and demand. Optimum parabolic trough collector length is determined for different insolation values to show the relation between direct normal insolation an...
Numerical investigation of circulating fluidized bed riser hydrodynamics for concentrating solar thermal receiver applications Bilyaz, Serhat; Tarı, İlker; Department of Mechanical Engineering (2015) Various heat transfer fluids and thermal storage materials are considered for concentrating solar power systems to improve the storage capability of the system which compensates the fluctuating behavior of the solar resources. Solid particles can be a good alternative since they have high sensible heat capacity. In addition, they are cheap, environmentally benign and chemically and mechanically stable at high temperatures. In this thesis, hydrodynamics of circulating fluidized bed solar receiver was numeric...
Investigation of olive mill sludge treatment using a parabolic trough solar collector Ben Othman, Fares; Eddhibi, Fathia; Bel Hadj Ali, Abdessalem; Fadhel, Abdelhamid; Bayer, Özgür; Tarı, İlker; Guizani, Amenallah; Balghouthi, Moncef (2022-01-15) The olive mill sludge treatment system developed in this study is an indirect solar dryer driven by a solar parabolic trough collector (PTC). A heat exchanger is implemented to heat air with hot oil coming from the solar collector. The developed hot air dryer can treat up to 50 kg of olive mill sludge distributed over six trays at once. The designed system and its components are described, along with their experimental and simulated performance evaluations. With a mean direct normal irradiation (DNI) higher...
Modeling and financial analysis of a solar-biomass hybrid power plant in Turkey Özdemir, Merve; Yozgatlıgil, Ahmet; Department of Mechanical Engineering (2017) Solar thermal and biomass combustion systems can be hybridized via a Rankine cycle to have a continuous electricity generation and lower CO2 footprint. Disadvantages of these two renewable technologies can be overcome by hybridization. In this work; we develop a simulation model for Rankine cycle based, solar-biomass hybrid power plants using the ASPEN PLUS software. Solar parabolic collectors and biomass combustion are arranged in parallel to produce steam for power generation. Using the simulation model; ...
Conceptual design and heat transfer investigation of a dense granular flow solar receiver Johnson, Evan Fair; Baker, Derek Keıth; Tarı, İlker; Department of Mechanical Engineering (2017) Solid particles have previously been proposed as an alternative to molten salt as a heat transfer and heat storage medium for concentrating solar power plants. While previous solid particle solar receiver designs use fluidized or falling particles, the new type of receiver proposed in this thesis uses a gravity-driven flow of particles in a dense granular flow regime. Through experimentation with sand, the flow and heat transfer properties were studied in two geometries: vertical tubular and vertical parall...

Citation Formats

R. Singh, “Modelling and performance analysis of linear fresnel collector for process heat generation for ice cream factory in Konya,” M.S. - Master of Science, Middle East Technical University, 2017.