Linking satellite imagery to bright sunshine hours for the estimation of global solar irradiation

Download

index.pdf

Date

2013

Author

Ener Ruşen, Selmin

Metadata

Show full item record

Item Usage Stats

188
views

76
downloads

This thesis is on the estimation models for the daily global solar irradiation on a horizontal surface at the surface of the Earth. New approaches are developed and applied to 15 locations of Turkey and Germany. The main idea in developing the new models is to link the surface data to satellite imagery. Totally three new modeling approaches are developed and tested. Surface data of daily bright sunshine hours (s) and cloud index (n) values derived from satellite images are the main input parameters. In the first approach, monthly coefficients of Angström linear relation between daily solar irradiation and daily bright sunshine hours are used to replace the clear sky irradiance calculations of HELIOSAT model. In the second approach new correlations are obtained between daily bright sunshine hours (s) and cloud index (n). Last model that is developed uses a new correlation expression between daily solar irradiation and daily data of s and n and this expression is derived using a physical consideration. The performances of the proposed models are tested against conventional methods (mainly, satellite-based HELIOSAT and ground-based linear Angström-Prescott type). The results show that the use of sunshine duration together with the cloud index is quite satisfactory in the estimations of daily global solar irradiation. The accuracy of estimations of the combined models is considerably higher than the conventional approaches. Therefore, we propose to use the new approaches to estimate daily global irradiation whenever the data of bright sunshine hours is available for the location of interest or a nearby station. In addition, for a point on the earth surface, depending on the data in hand, suitable and most accurate models of estimations are proposed for that point.

Subject Keywords

Solar radiation., Solar energy., Sunshine., Remote-sensing images.

URI

http://etd.lib.metu.edu.tr/upload/12615723/index.pdf
https://hdl.handle.net/11511/22603

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

Coupling satellite images with surface measurements of bright sunshine hours to estimate daily solar irradiation on horizontal surface Rusen, Selmin Ener; Hammer, Annette; Akınoğlu, Bülent Gültekin (2013-07-01) Satellite images are heavily used for the estimation of solar irradiation at the Earth's surface. The accuracy yet should be improved to attain more reliable input values for the use of all types of solar energy systems. This paper presents two new alternative approaches to increase the estimation accuracy of daily solar irradiation by coupling the satellite images with surface bright sunshine hour measurements. Two different approaches are described for the estimation of global solar irradiation on daily b...
Modelling and performance analysis of linear fresnel collector for process heat generation for ice cream factory in Konya Singh, Rahul; Baker, Derek Keıth; Tarı, İlker; Department of Mechanical Engineering (2017) 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 benc...
A Feasibility study for external control on self-organized production of plasmonic enhancement interfaces for solar cells Zolfaghari Borra, Mona; Bek, Alpan; Ünalan, Hüsnü Emrah; Department of Micro and Nanotechnology (2013) The present study is about the improvement of the energy conversion efficiency of solar cells in which plasmonic light-trapping approach has been investigated. In this study, metal nanoparticles are allowed to form in a self-organized fashion on both flat and textured full scale monocrystalline silicon solar cell. These metal nanoparticles with strong optical interaction cross-sections at localized plasmonic resonance energies, improve coupling of the incoming light into the active area of solar cells by wa...
SOLAR IRRADIATION ESTIMATION ON A SOLAR POWERED UAV OVER A MISSION COURSE Ozcan, Guclu; Alemdaroglu, Nafiz (2015-06-12) This paper is about solar irradiation estimation on a solar powered UAV over its mission course [1]. Solar irradiation estimation and maximizing the solar energy collection are critical for solar powered UAVs and their performance. In this paper main focus is on solar irradiation calculations and comparison of two possible flight paths for solar energy collection during a transport or inspection mission.
Simulations of the Black Sea pelagic ecosystem by 1-D, vertically resolved, physical-biochemical models Oguz, T; Ducklow, HW; Malanotte-Rizzoli, P; Murray, JW (Wiley, 1998-09-01) The present paper summarizes the results of several simulations of the central Black Sea pelagic food web using three different 1-D, physical-biochemical, water column process models. The most simplified, five-compartment version is used to explore the robust biological features of the ecosystem and the role of upper-layer physics on the evolution of the euphotic zone biological processes. The other models, introducing additional biological complexities, show how these biologically structured models become ...

Citation Formats

S. Ener Ruşen, “Linking satellite imagery to bright sunshine hours for the estimation of global solar irradiation,” Ph.D. - Doctoral Program, Middle East Technical University, 2013.