Photovoltaic (PV)-based solar chimneys could assist stack ventilation within a large space hall. This study considered a comprehensive office building with a PV-based solar chimney as a case study to explore measures for enhancing stack ventilation. A computational fluid dynamics (CFD) model was established, and the influences of the inner heat source, chimney inlet position, solar heat gain and photovoltaic (PV) arrangement on the ventilation rate were investigated. The results revealed that PV-based solar chimneys could assist stack ventilation and would effectively provide a suitable indoor environment for occupied areas during the transitional season. Raising the chimney inlet position is conducive to improving the ventilation rate and cooling performance. The increase in the inlet position from a height of 0.2 m to 3.8 m would increase the ventilation rate up to 5%. The heat gain from the PV backside is an important method of enhancing the ventilation rate. A 200 W/m2 heat gain can lead to a 16.4% increase in ventilation. Moreover, the lower the heat source location, the higher the ventilation efficiency. This study provides basic strategies for optimising design schemes to improve natural ventilation efficiency.
SuJWLiJLuoXLYuCWGuZL. Experimental evaluation of a capillary heating bed driven by an air source heat pump and solar energy. Indoor Built Environ2020; 29(10): 1399–1411.
2.
AflakiAMahyuddinNMahmoudZACBaharumMR. A review on natural ventilation applications through building facade components and ventilation openings in tropical climates. Energy Build2015; 101: 153–162.
3.
ChenYJTongZMMalkawiA. Investigating natural ventilation potentials across the globe: regional and climatic variations. Build Environ2017; 122: 386–396.
4.
TongZMChenYJMalkawiALiuZFreemanRB. Energy saving potential of natural ventilation in China: the impact of ambient air pollution. Appl Energy2016; 179: 660–668.
5.
Oropeza-PerezIOstergaardPA. Energy saving potential of utilizing natural ventilation under warm conditions – a case study of Mexico. Appl Energy2014; 130: 20–32.
6.
Da GracaGCLindenP. Ten questions about natural ventilation of non-domestic buildings. Build Environ2016; 107: 263–273.
HouYLiHLiA. Experimental and theoretical study of solar chimneys in buildings with uniform wall heat flux. Sol Energy2019; 193: 244–252.
10.
AsadiSFakhariMFayazRMandaviparsaA. The effect of solar chimney layout on ventilation rate in buildings. Energy Build2016; 123: 71–78.
11.
ArceJJimenezMJGuzmanJDHerasMRAlvarezGXamanJ. Experimental study for natural ventilation on a solar chimney. Renew Energy2009; 34: 2928–2934.
12.
VillagranEABaeza RomeroEJBojacaCR. Transient CFD analysis of the natural ventilation of three types of greenhouses used for agricultural production in a tropical mountain climate. Biosyst Eng2019; 188: 288–304.
13.
DurvaGVaibhavK. Natural ventilation design: predicted and measured performance of a hostel building in composite climate of India. Energy Built Environ2021; 2: 82–93.
14.
Fernandez-ZayasJLVilla-MedinaJFChargoy-del ValleNPorta-GandaraMA. Experimental analysis of natural ventilation of an office building in Mexico City. Case Stud Therm Eng2021; 28: 101661.
15.
LiAGHaoCXZhangHP. Experimental study on strengthening natural ventilation by solar chimney. Acta Energiae Solaris Sin2009; 30: 460–464.
16.
HaghighiAPMaerefatM. Solar ventilation and heating of buildings in sunny winter days using solar chimney. Sustain Cities Soc2014; 10: 72–79.
17.
ShiLZhangGM. An empirical model to predict the performance of typical solar chimneys considering both room and cavity configurations. Build Environ2016; 103: 250–261.
18.
ShiL. Theoretical models for wall solar chimney under cooling and heating modes considering room configuration. Energy2018; 165: 925–938.
19.
MancaONardiniSRomanoPMihailovE. Numerical investigation of thermal and fluid dynamic behavior of solar chimney building systems. Engineering-Prc2014; 49: 106–116.
20.
GanGRiffatSB. A numerical study of solar chimney for natural ventilation of buildings with heat recovery. Appl Therm Eng1998; 18: 1171–1187.
21.
LiYCLiuSL. Numerical study on thermal behaviors of a solar chimney incorporated with PCM. Energy Build2014; 80: 406–414.
22.
KrzaczekMFlorczukJTejchmanJ. Field investigations of stack ventilation in a residential building with multiple chimneys and tilted window in cold climate. Energy Build2015; 103: 48–61.
23.
SotoAMartinezPJMartinezPTudelaJA. Simulation and experimental study of residential building with north side wind tower assisted by solar chimneys. J Build Eng2021; 43: 102562.
24.
WangHJKaravaPChenQY. Development of simple semiempirical models for calculating airflow through hopper, awning, and casement windows for single-sided natural ventilation. Energy Build2015; 96: 373–384.
25.
JiangYChenQY. Buoyancy-driven single-sided natural ventilation in buildings with large openings. Int J Heat Mass Tran2003; 46: 973–988.
26.
LuoXLGuZLLeiKBWangSKaseK. A three-dimensional Cartesian cut cell method for incompressible viscous flow with irregular domains. Int J Numer Methods Fluid2012; 69: 1939–1959.
27.
KongJNiuJLLeiCW. A CFD based approach for determining the optimum inclination angle of a roof-top solar chimney for building ventilation. Sol Energy2020; 198: 555–569.
28.
ZamoraBKaiserAS. Numerical study on mixed buoyancy-wind driving induced flow in a solar chimney for building ventilation. Renew Energy2010; 35: 2080–2088.
29.
GilaniSMontazeriHBlockenB. CFD simulation of stratified indoor environment in displacement ventilation: validation and sensitivity analysis. Build Environ2016; 95: 299–313.
30.
TukkeeAMAl-KayiemHHGilaniSIU. Effect of density variation method and air humidity consideration on the computational simulation of solar vortex power generation systems. Therm Sci Eng Prog2023; 37: 101574.
31.
LiWWangHLiCYuCW. Control of temperature and fume generation by cooking in a residential kitchen by ceiling radiative cooling and fume hood extraction. Indoor Built Environ2021; 30(8): 1211–1225.
32.
HommaH. Examination of free convection around occupant’s body caused by its metabolic heat. Build Eng1988; 94: 104–124.
33.
De DearArensRJEHuiZOguroM. Convective and radiative heat transfer coefficients for individual human body segments. Int J Biometeorol1997; 40: 141–156.
34.
SørensenDNVoigtLK. Modelling flow and heat transfer around a seated human body by computational fluid dynamics. Build Environ2003; 38: 753–762.
35.
ZhangHHTaoYZhangGMLiJSetungeSShiL. Impacts of storey number of buildings on solar chimney performance: a theoretical and numerical approach. Energy2022; 261: 125200.
36.
LuoXLeiSYuCWGuZ. Thermal performance of a novel heating bed system integrated with a stack effect tunnel. Indoor Built Environ2020; 29(9): 1328–1361.
37.
ASHRAE Handbook. HVAC applications chapter 23: museum, galleries, archives, and libraries. Atlanta: American Society of Heating, Refrigerating and Air-Conditioning Engineers, 2015, SI Edition.
38.
NasrollahiNGhobadiP. Field measurement and numerical investigation of natural cross-ventilation in high-rise buildings: thermal comfort analysis. Appl Therm Eng2022; 211: 118500.
