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Optimization of geometric parameters of twisted tape for augmentation of heat transfer on solar collector

Grant number: 17/17032-3
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): November 01, 2017
Effective date (End): October 31, 2019
Field of knowledge:Engineering - Mechanical Engineering - Thermal Engineering
Principal researcher:Leandro Oliveira Salviano
Grantee:Luis Gonçalves da Silva Junior
Home Institution: Universidade Estadual Paulista (UNESP). Campus de Rosana. Rosana , SP, Brazil

Abstract

Heating water for domestic and industrial environments is an activity that requires a higher amount of thermal energy, supplied either from burning gas/biomass or direct use of electricity. Nowadays, these conventional methods show greater resistance to their growth in response to inexorable increase of society demand. Therefore, the solar energy has emerged as a suitable renewable energy source for this application type, requiring permanent technology development on solar collector regarding its thermal efficiency in order to meet the application requirements. Overall, the main goal of this research project is provide the numerical simulation and optimization of heat transfer enhancement in the water flow inside tube on flat-plate solar collector with active system and indirect single-phase flow by known device as Twisted Tape, at low Reynolds number (Re = 300 and Re = 600). Twisted Tape geometric parameters that will be analyzed are: Pitch (P), Length (L) and Radius (R1 and R2). These four input variables will be submitted to approach Direct Optimization which is the integration between numerical model and optimization method that is the Genetic Algorithm. (AU)

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