Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
Natural gas and solar thermal energy for process steam generation in the Brazilian industry
Submission Author:
Grazielli Bueno , PR
Co-Authors:
Grazielli Bueno, Eduardo Burin
Presenter: Eduardo Burin
doi://10.26678/ABCM.COBEM2023.COB2023-0270
Abstract
The present study aims to analyze the economic potential of two scenarios: one using only natural gas; and the second using linear Fresnel technology with no thermal storage combined with natural gas boilers to generate industrial process steam, in seven Brazilian cities. The solar field plant was modeled using SAM software. In addition, the cost of the plant's industrial process steam was quantified by LCOH, and the economic evaluation of the project in terms of investment was obtained by the Net Present Value, Internal Rate of Return and capital recovery time criteria. The results indicate that parameters such as the Direct Normal Irradiation, natural gas prices and the cost of the solar field have an impact on the economic viability of the hybrid power plant. Thus, it was observed that for the hybrid operation, the natural gas – solar thermal concept proved to be viable in three cities studied, two in the Northeast region and another in the Southeast. In addition, it was observed that there was fuel savings when integrating the Fresnel concentrators to the natural gas generating units and, consequently, the emission of greenhouse gases is minimized.
Keywords
Fresnel concentrators, concentrated solar heat, LCOH, hybrid systems
