Optimization of Energy Consumption in Net-Zero Energy Buildings with Increasing Thermal Comfort of Occupants

Residential and commercial buildings consume approximately 60% of the world’s electricity. It is almost impossible to provide a general definition of thermal comfort, because the feeling of thermal comfort is affected by varying preferences and specific traits of the population living in different c...

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Bibliographic Details
Published in:International journal of photoenergy 2020, Vol.2020 (2020), p.1-17
Main Authors: Mahdavi Adeli, Mohsen, Sarhaddi, Faramarz, Farahat, Said
Format: Article
Language:English
Subjects:
Air conditioning
Buildings
Case studies
Climate
Commercial buildings
Computational fluid dynamics
Cost control
Electricity consumption
Energy consumption
Green buildings
Heat
Humidity
HVAC
Lighting systems
Mathematical models
Optimization
Parameters
Solar energy
Thermal comfort
Thermodynamic properties
Ventilation
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Summary:Residential and commercial buildings consume approximately 60% of the world’s electricity. It is almost impossible to provide a general definition of thermal comfort, because the feeling of thermal comfort is affected by varying preferences and specific traits of the population living in different climate zones. Considering that no studies have been conducted on thermal satisfaction of net-zero energy buildings prior to this date, one of the objectives of the present study is to draw a comparison between the thermal parameters for evaluation of thermal comfort of a net-zero energy building occupants. In so doing, the given building for this study is first optimized for the target parameters of thermal comfort and energy consumption, and, hence, a net-zero energy building is formed. Subsequent to obtaining the acceptable thermal comfort range, the computational analyses required to determine the temperature for thermal comfort are carried out using the Computational Fluid Dynamics (CFD) model. The findings of this study demonstrate that to reach net-zero energy buildings, solar energy alone is not able to supply the energy consumption of buildings and other types of energy should also be used. Furthermore, it is observed that optimum thermal comfort is achieved in moderate seasons.
ISSN:1110-662X
1687-529X
DOI:10.1155/2020/9682428