Optimisation and design of PV modules for the application on bus roof-top and system integration for solar cooling

Çiftpınar, Emine Hande
Turan, Raşit
In this study, an external electrical cooling unit powered by PV modules was installed on the roof‐top of a bus to keep cooled interior atmosphere at a certain temperature level during the journey breaks. All solar cells used in this project were fabricated by Center for Solar Energy Research and Applications (GUNAM) and; then, integrated onto a bus roof together with MAN Turkey A.Ş. For integration of PV modules onto roof of bus, a reliable and commercially applicable method has been developed. Following integration, illumination level on the bus in summer season was measured to investigate the shadow effect on the bus roof while touring in the city. (© 2016 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)


Mathematical expression of the temperature profile and experimental determination of compression heating of ethylene glycol during high hydrostatic pressure processing
Buzrul, S.; Alpas, Hami; Largeteau, A.; Demazeau, G. (Informa UK Limited, 2007-03-01)
In this study, we aimed to describe the temperature profile in the pressure vessel and the compression heating during high hydrostatic pressure (HHP) processing. Regression coefficients (R-2), root mean square error (RMSE) values and residual plots suggested that fourth-order polynomial function produced reasonable fits to define the temperature profile for all the pressures studied (300-600 MPa). If all the coefficients of this empirical model are determined, initial and final temperatures, a value close t...
Account of nonlocal ionization by fast electrons in the fluid models of a direct current glow discharge
Rafatov, İsmail; KUDRYAVTSEV, A. A. (AIP Publishing, 2012-09-01)
We developed and tested a simple hybrid model for a glow discharge, which incorporates nonlocal ionization by fast electrons into the "simple" and "extended" fluid frameworks. Calculations have been performed for an argon gas. Comparison with the experimental data as well as with the hybrid (particle) and fluid modelling results demonstated good applicability of the proposed model. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4752419]
HİÇDURMAZ, SERDAR; Tarı, İlker (Begell House, 2018-01-01)
A thermal energy storage unit designed to be used in a solid particle concentrated solar energy system is analyzed with the help of ANSYS Fluent 17.0. Hydrodynamics of the bubbling fluidized sand bed of 0.28 m × 1 m × 0.025 m dimensions to be used as a direct contact heat exchanger is modeled and validated. Geldart B-type particles with diameter of 275 micrometers and density of 2500 kg/m3 are used in modeling of bubbling fluidized sand bed. A Syamlal−O'Brien drag model with restitution coefficient of 0.99 ...
Optoelectronic properties of Tl3InSe4 single crystals
QASRAWI, ATEF FAYEZ HASAN; Hasanlı, Nızamı (Informa UK Limited, 2010-01-01)
The crystal structure, temperature-dependent electrical conductivity, Hall coefficient, current-voltage characteristics, absorption spectra and temperature- and illumination-dependent photoconductivity of Tl3InSe4 single crystals were investigated. Tl3InSe4 crystallises in a body-centred lattice with tetragonal symmetry and belongs to the space group [image omitted]. The crystals are extrinsic p-type semiconductors and exhibit a conductivity conversion from p- to n-type at a critical temperature, Tc, of 283...
Aerothermodynamic Design Optimization of Hypersonic Vehicles
Eyi, Sinan; Boyd, Iain D. (American Institute of Aeronautics and Astronautics (AIAA), 2019-04-01)
The objective of this study is to develop a reliable and efficient design optimization method for hypersonic vehicles focused on aerothermodynamic environments. Considering the nature of hypersonic flight, a high-fidelity aerothermodynamic analysis code is used for the simulation of weakly ionized hypersonic flows in thermochemical nonequilibrium. A gradient-based method is implemented for optimization. Bezier or nonuniform rational basis spline curves are used to parametrize the geometry or the geometry ch...
Citation Formats
O. DEMİRCİOĞLU, F. ES, E. H. Çiftpınar, A. ZEYBEK, C. TUNCER, and R. Turan, “Optimisation and design of PV modules for the application on bus roof-top and system integration for solar cooling,” 2015, vol. 13, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/40023.