Thermal Modeling and Verification of PV Module Temperature and Energy Yield Using Outdoor Measurements for Ankara, Turkey

Date

2018-11-14

Author

Tuncel, Bilge
Akınoğlu, Bülent Gültekin
ÖZDEN, TALAT
Balog, Robert S

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

272
views

0
downloads

Ankara is in the Central Anatolia region of Turkey where the climate is dry-continental with an annual solar insolation of around 1750 kWh/m(2). In the transition to renewable energy, detailed analyses are required to ensure effective and economic utilization of the available solar resource. An essential part of these analyses is to calculate expected energy yield. For photovoltaic (PV) systems, this includes the effect of temperature on the PV efficiency, which determines the power yield of the PV modules. In this study, a first-principles thermal modeling approach is improved by adding the speed and direction of wind across the PV module into a forced convection term as well as including the temperature dependency of the module conversion efficiency. The analytical model is based on the principle of conservation of energy and uses meteorological data that are readily available from most state meteorological services. The mathematical analysis is suitable to predict the performance of a proposed PV installation without the time and expense of installing and monitoring a pilot system. The mathematical model is compared against measured data from the METU-GUNAM Outdoor Test Facility in Ankara to validate the methodology. Preliminary analyses showed that the model performs well especially during sunrise and sunsets shoulders of the diurnal cycle with a deviation of only a few W/m(2) for the electrical power yield and about 2 degrees C for the module temperature. However, these deviations could become as large as 12 W/m(2)and 8 degrees C at solar noon which suggests that the model still requires further improvement. In general, this error was found to be less that obtained by using basic explicit correlation methods and offers the advantage that it can be used for other geographical environments for which insolation and meteorological data is available without needing to construct a test-site.

Subject Keywords

Solar energy, Photovoltaic modules, Module efficiency, Module temperature, Thermal modeling

URI

https://hdl.handle.net/11511/35290

DOI

https://doi.org/10.1109/pvcon.2018.8523953

Collections

Department of Physics, Conference / Seminar

Suggestions

OpenMETU
Core

Performance and Degradation Analyses of two Different PV Modules in Central Anatolia ÖZDEN, TALAT; Akınoğlu, Bülent Gültekin; Kurtz, Sarah (2018-11-14) Ankara (latitude: around 40 degrees N) is in Central Anatolia and the climate is dry continental. Due to the rapid transition to renewable energy policies of Turkey it is now a must to complete truthful feasibility analyses for solar power systems countrywide. Long term performance and degradation analyses have been carried out by the authors for three different arrays and many research results appearing in the literature are summarized. Present research analyzes the outdoor testing results of two PV module...
Sustainable management of Mogan and Eymir Lakes in Central Turkey Yagbasan, Ozlem; Yazıcıgil, Hasan (2009-01-01) Mogan and Eymir Lakes, located 20 km south of Ankara in Central Turkey, are important aesthetic, recreational, and ecological resources. Dikilitas and Ikizce reservoirs, constructed on upstream surface waters, are two man-made structures in the basin encompassing an area of 985 km(2). The purpose of this study is to quantify groundwater components in lakes' budgets and to assess the potential impacts of upstream reservoirs on lake levels for sustainable management of the system. Available data have been use...
Practical Experiences About Reservoir Monitoring in Alasehir Geothermal Field Aydın, Hakkı; Akın, Serhat; Tezel, Seray (2018-02-14) Alaşehir geothermal area that is located in southern part of the Alaşehir Graben is one the important geothermal areas in Turkey. Currently, more than 6 operators are exploiting this field on a strictly competitive, and largely confidential, basis without significant exchange of resource information among them. This paper discusses monitoring of the response of part of Alaşehir geothermal system to large scale exploitation. In this regard, temperature and pressure of the reservoir, steam flowrate, brine flo...
Hydrochemistry isotopic ratios and origin of thermal fluids in eastern Anatolia Aydın, Harun; Karakuş, Hüseyin; Mutlu, Halim; Güleç, Nilgün Türkan; Hılton, Davıd (2016-09-25) As a result of active volcanism and tectonism, the eastern Anatolian region in Turkey is represented by a high geothermal potential. In this study, we evaluate chemical and isotopic compositions of several geothermal springs in eastern Anatolia with emphasis on hydrochemical/isotopic characteristics and reservoir temperatures. Thermal waters were sampled in areas of Miocene volcanism (northeastern Anatolia) whilst some are collected in localities near historically-active volcanoes (e.g. Ağrı, Tendürek and S...
Hydroelectric power potential and its use in Turkey Taşdemiroğlu, Erol (Elsevier BV, 1988-7) Hydroelectric development in Turkey is briefly reviewed. The results of estimates of gross and economically exploitable hydroelectric power potentials are compared. Dam sites and their order for construction are identified. Present and future developments in the power sector are analyzed and projections are given for electricity consumption and production to the year 2010. Hydraulic, thermal and nuclear contributions to total electricity generation are discussed. Finally, problems associated with hydroelect...

Citation Formats

B. Tuncel, B. G. Akınoğlu, T. ÖZDEN, and R. S. Balog, “Thermal Modeling and Verification of PV Module Temperature and Energy Yield Using Outdoor Measurements for Ankara, Turkey,” 2018, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/35290.