The Impact of Air Renewal with Heat-Recovery Technologies on Energy Consumption for Different Types of Environments in Brazilian Buildings

York Castillo Santiago (), Daiane Busanello, Alexandre F. Santos, Osvaldo J. Venturini and Leandro A. Sphaier
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York Castillo Santiago: Laboratory of Thermal Sciences (LATERMO), Mechanical Engineering Department (TEM/PGMEC), Fluminense Federal University, Rua Passo da Pátria 156, Niterói 24210-240, RJ, Brazil
Daiane Busanello: Escola Técnica Profissional, Grupo ETP, Rua Eng. Rebouças 2213, Curitiba 80230-040, PR, Brazil
Alexandre F. Santos: Escola Técnica Profissional, Grupo ETP, Rua Eng. Rebouças 2213, Curitiba 80230-040, PR, Brazil
Osvaldo J. Venturini: Excellence Group in Thermal Power and Distributed Generation (NEST), Federal University of Itajubá (UNIFEI), Av. BPS 1303, Itajubá 37500-903, MG, Brazil
Leandro A. Sphaier: Laboratory of Thermal Sciences (LATERMO), Mechanical Engineering Department (TEM/PGMEC), Fluminense Federal University, Rua Passo da Pátria 156, Niterói 24210-240, RJ, Brazil

Energies, 2024, vol. 17, issue 16, 1-23

Abstract: This work evaluates the impact of air renewal on energy consumption for indoor environments. For this purpose, an analysis of the problem of air renewal at a Brazilian level was carried out, as well as research into the energy impact of air renewal without energy recovery and the different existing technologies for recovering energy from renewed air. On the other hand, the influence of heat-recovery systems was analyzed in three Brazilian cities (Manaus, São Paulo, and Brasília) for different environments, where a classroom in Manaus has an approximately 50% external air factor and a 42% sensible heat factor. However, classrooms in São Paulo and Brasília have a lower external air factor (27% and 8%, respectively) and a higher sensible heat factor (61% and 78%, respectively). Considering a system with heat recovery, the external air factor decreases to 23%, 10%, and 3% for Manaus, São Paulo, and Brasília, respectively. This allows us to understand the influence of heat-recovery systems, which reduce the external air factor and increase the sensible heat factor.

Keywords: heat-recovery technologies; Köppen classification; air conditioning; HVAC systems; residential buildings; energy efficiency (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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