Next Article in Journal
Experimental Validation of a Heat Transfer Model in Underground Power Cable Systems
Previous Article in Journal
Neuro-Fuzzy System for Energy Management of Conventional Autonomous Vehicles
Open AccessArticle

Investigation of the Energy Saving Efficiency of a Natural Ventilation Strategy in a Multistory School Building

by Beungyong Park 1 and Sihwan Lee 2,*
1
Energy Division, Korea Conformity Laboratories (KCL), Jincheon 27872, Korea
2
Department of Architecture, Shinshu University, 4-17-1 Wakasato, Nagano City 380-8553, Japan
*
Author to whom correspondence should be addressed.
Energies 2020, 13(7), 1746; https://doi.org/10.3390/en13071746
Received: 2 March 2020 / Revised: 3 April 2020 / Accepted: 3 April 2020 / Published: 6 April 2020
(This article belongs to the Section Energy and Buildings)
Under-ventilation and high energy consumption are some of the problems associated with school classrooms. Thus, it is necessary to develop a ventilation strategy that is characterized by high energy-saving and ventilation efficiency. To this end, this study aims to investigate natural ventilation as a possible strategy to improve the indoor environment while reducing ventilation loads and maintaining energy costs during intermediate seasons. Ventilation and cooling load reductions based on the opening and closing of several windows were analyzed. Window flow coefficients and ventilation rates were measured and used for computational fluid dynamics (CFD) simulation to obtain pressure coefficients for 16 wind directions. The results obtained showed that the improved natural ventilation strategy could be used to effectively establish required indoor conditions (26 °C, 60% RH). Additionally, compared with the mechanical ventilation system with variable refrigerant flow, this natural strategy resulted in a decrease in energy consumption of approximately 30%. However, its application requires that internal heat gain and CO2 emissions, which depend on human population density, as well as the room usage schedule should be considered. View Full-Text
Keywords: void; natural ventilation; field measurement; CFD; cooling load void; natural ventilation; field measurement; CFD; cooling load
Show Figures

Figure 1

MDPI and ACS Style

Park, B.; Lee, S. Investigation of the Energy Saving Efficiency of a Natural Ventilation Strategy in a Multistory School Building. Energies 2020, 13, 1746.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop