Author, as appears in the article.: Naves, Alex Ximenes; Esteller, Laureano Jimenez; Haddad, Assed Naked; Boer, Dieter;
Department: Enginyeria Química
URV's Author/s: Boer, Dieter-Thomas / Jiménez Esteller, Laureano
Keywords: Variable rate energy tariffs Tropical environment Thermal power Thermal energy storage Technologies Sustainability Spatiotemporal analysis Solar power Solar energy Residential air cooling Requirements Pv Predictive control Optimization Life cycle costing Life cycle analysis Energy storage Energy planning Energy efficiency Demand response Brazil Air conditioning
Abstract: Economy and parsimony in the consumption of energy resources are becoming a part of common sense in practically all countries, although the effective implementation of energy efficiency policies still has a long way to go. The energy demand for residential buildings is one of the most significant energy sinks. We focus our analysis on one of the most energy-consuming systems of residential buildings located in regions of tropical climate, which are cooling systems. We evaluate to which degree the integration of thermal energy storage (TES) and photovoltaic (PV) systems helps to approach an annual net zero energy building (NZEB) configuration, aiming to find a feasible solution in the direction of energy efficiency in buildings. To conduct the simulations, an Energy Efficiency Analysis Framework (EEAF) is proposed. A literature review unveiled a potential knowledge gap about the optimization of the ASHRAE operational modes (full storage load, load leveled, and demand limiting) for air conditioning/TES sets using PV connected to the grid. A hypothetical building was configured with detailed loads and occupation profiles to simulate different configurations of air conditioning associated with TES and a PV array. Using TRNSYS software, a set of scenarios was simulated, and their outputs are analyzed in a life cycle perspective using life cycle costing (LCC). The modeling and simulation of different scenarios allowed for identifying the most economic configurations from a life cycle perspective, within a safe range of operability considering the energy efficiency and consequently the sustainability aspects of the buildings. The EEAF also supports other profiles, such as those in which the occupancy of residential buildings during the day is increased due to significant changes in people's habits, when working and studying in home office mode, for example. These changes in habits should bring a growing interest in the adoption of solar energy for real-time use in residential buildings. The results can be used as premises for the initial design or planning retrofits of buildings, aiming at the annual net zero energy balance.
Thematic Areas: Zootecnia / recursos pesqueiros Renewable energy, sustainability and the environment Medicina i Management, monitoring, policy and law Interdisciplinar Historia Hardware and architecture Green & sustainable science & technology Geography, planning and development Geografía Geociências Environmental studies Environmental sciences Environmental science (miscellaneous) Ensino Engenharias iii Engenharias ii Engenharias i Enfermagem Energy engineering and power technology Education Computer science (miscellaneous) Computer networks and communications Ciências agrárias i Building and construction Biotecnología Biodiversidade Arquitetura, urbanismo e design Arquitetura e urbanismo
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: laureano.jimenez@urv.cat dieter.boer@urv.cat
Author identifier: 0000-0002-3186-7235 0000-0002-5532-6409
Record's date: 2023-08-05
Papper version: info:eu-repo/semantics/publishedVersion
Link to the original source: https://www.mdpi.com/2071-1050/13/22/12831
Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Sustainability. 13 (22):
APA: Naves, Alex Ximenes; Esteller, Laureano Jimenez; Haddad, Assed Naked; Boer, Dieter; (2021). Targeting Energy Efficiency through Air Conditioning Operational Modes for Residential Buildings in Tropical Climates, Assisted by Solar Energy and Thermal Energy Storage. Case Study Brazil. Sustainability, 13(22), -. DOI: 10.3390/su132212831
Article's DOI: 10.3390/su132212831
Entity: Universitat Rovira i Virgili
Journal publication year: 2021
Publication Type: Journal Publications
Repositori URV