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

• Grant number: 17/17032-3
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: November 01, 2017
• End date: October 31, 2019
• Field of knowledge: Engineering - Mechanical Engineering - Thermal Engineering
• Principal Investigator: Leandro Oliveira Salviano
• Grantee: Luis Gonçalves da Silva Junior
• Host 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)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

SILVA JUNIOR, LUIS G.; SILVA, FELIPE A. S.; FARIA, TIAGO G.; KESSLER, MARTIN P.; SALVIANO, LEANDRO O.. onstrained Direct Optimisation of the Geometrical Parameters of a Twisted-Tape for Laminar Flow in a Circular Tub. INTERNATIONAL JOURNAL OF COMPUTATIONAL FLUID DYNAMICS, v. 35, n. 6, OCT 2021. (17/17032-3)