Semi-outdoor learning space is an important part of a university campus, as it accommodates learning and social activities while enabling users to connect with outdoor environments. This research explores the relationships between thermal environments, thermal perceptions and spatial settings in five selected semi-outdoor spaces on the campus of the National University of Singapore. A distance meter was used to measure spatial settings such as the floor height and void-to-solid ratio in the selected spaces. A heat stress meter was used to measure air temperature and relative humidity, and another meter to measure wind speed. A questionnaire survey was carried out to collect the users’ thermal perceptions. A total of 339 students were involved in the survey. The results of the study indicated that increasing the height of the space and the height of surrounding buildings can increase users’ satisfaction with semi-outdoor space. In terms of architectural design, the temperature and wind speed can be effectively regulated by building orientation and the void-to-solid ratio, respectively. This study provides evidence and guidelines for campus planning and design.
ChunCKwokATamuraA.Thermal comfort in transitional spaces – basic concepts: literature review and trial measurement. Build Environ2004;
39: 1187–1192.
2.
NakanoJTanabeS-I.Thermal comfort and adaptation in semi-outdoor environments. ASHRAE Trans2004;
110: 543–553.
3.
GoshayeshiDShahidanMFKhafiFEhteshamE.A review of researches about human thermal comfort in semi-outdoor spaces. Eur Online J Nat Soc Sci2013;
2: 516.
4.
XueFGouZLauS.Green open space in high-dense Asian cities: site configurations, microclimates and users’ perceptions. Sustain Cities Soc2017;
34: 114–125.
5.
HeB-JZhaoD-XZhuJDarkoAGouZ-H.Promoting and implementing urban sustainability in China: an integration of sustainable initiatives at different urban scales. Habitat Int2018;
82: 83–93.
6.
SpagnoloJDe DearR.A field study of thermal comfort in outdoor and semi-outdoor environments in subtropical Sydney Australia. Build Environ2003;
38: 721–738.
7.
XiTLiQMochidaAMengQ.Study on the outdoor thermal environment and thermal comfort around campus clusters in subtropical urban areas. Build Environ2012;
52: 162–170.
8.
ShihW-MLinT-PTanN-XLiuM-H.Long-term perceptions of outdoor thermal environments in an elementary school in a hot-humid climate. Int J Biometeorol2017;
61: 1657–1666.
9.
PriantoEDepeckerP.Optimization of architectural design elements in tropical humid region with thermal comfort approach. Energy Build2003;
35: 273–280.
10.
HwangR-LLinT-P.Thermal comfort requirements for occupants of semi-outdoor and outdoor environments in hot-humid regions. Archit Sci Rev2007;
50: 357–364.
11.
LinT-P.Thermal perception, adaptation and attendance in a public square in hot and humid regions. Build Environ2009;
44: 2017–2026.
12.
WuC-FHsiehY-FOuS-J.Thermal adaptation methods of urban plaza users in Asia’s hot-humid regions: a Taiwan case study. Int J Environ Res Public Health2015;
12: 13560–13586.
13.
HaaseMAmatoA.An investigation of the potential for natural ventilation and building orientation to achieve thermal comfort in warm and humid climates. Solar Energy2009;
83: 389–399.
14.
AbandaFByersL.An investigation of the impact of building orientation on energy consumption in a domestic building using emerging BIM (Building Information Modelling). Energy2016;
97: 517–527.
15.
SpanosISimonsMHolmesKL.Cost savings by application of passive solar heating. Struct Surv2005;
23: 111–130.
16.
MallickFH.Thermal comfort and building design in the tropical climates. Energy Build1996;
23: 161–167.
17.
KayaNErkipF.Satisfaction in a dormitory building: the effects of floor height on the perception of room size and crowding. Environ Behav2001;
33: 35–53.
18.
KhedariJBoonsriBHirunlabhJ.Ventilation impact of a solar chimney on indoor temperature fluctuation and air change in a school building. Energy Build2000;
32: 89–93.
19.
LiDHTsangEK.An analysis of daylighting performance for office buildings in Hong Kong. Build Environ2008;
43: 1446–1458.
20.
LiuC-HBarthMCLeungDY.Large-eddy simulation of flow and pollutant transport in street canyons of different building-height-to-street-width ratios. J Appl Meteor2004;
43: 1410–1424.
21.
PeriniKMaglioccoA.Effects of vegetation, urban density, building height and atmospheric conditions on local temperatures and thermal comfort. Urban Forest Urban Green2014;
13: 495–506.
22.
RattiCRaydanDSteemersK.Building form and environmental performance: archetypes, analysis and an arid climate. Energy Build2003;
35: 49–59.
23.
ShiSLTongCMTaoYQ.How does spatial organisation of gardens at care facilities for the elderly influence use patterns: a case study in Hong Kong. Landsc Res2018;
43: 124–138.
24.
ThielPHarrisonEDAldenRS.The perception of spatial enclosure as a function of the position of architectural surfaces. Environ Behav1986;
18: 227–245.
25.
HöppeP.Different aspects of assessing indoor and outdoor thermal comfort. Energy Build2002;
34: 661–665.
26.
LiYHeiselbergP.Analysis methods for natural and hybrid ventilation – a critical literature review and recent developments. Int J Ventil2003;
1: 3–20.
27.
HeiselbergP.Design of natural and hybrid ventilation.
Aalborg:
Department of Civil Engineering, Aalborg University, 2006.
28.
GouZGamageWLauSLauS.An investigation of thermal comfort and adaptive behaviors in naturally ventilated residential buildings in tropical climates: a pilot study. Buildings2018;
8: 5.
29.
AlkhreshehMM.Preference for void-to-solid ratio in residential facades. J Environ Psychol2012;
32: 234–245.
30.
LaiC-MHokoiS.Solar façades: a review. Build Environ2015;
91: 152–165.
31.
De DearRLeowKFooS.Thermal comfort in the humid tropics: field experiments in air conditioned and naturally ventilated buildings in Singapore. Int J Biometeorol1991;
34: 259–265.
32.
KubotaTChyeeDTHAhmadS.The effects of night ventilation technique on indoor thermal environment for residential buildings in hot-humid climate of Malaysia. Energy Build2009;
41: 829–839.
33.
LipingWHienWN.The impacts of ventilation strategies and facade on indoor thermal environment for naturally ventilated residential buildings in Singapore. Build Environ2007;
42: 4006–4015.
34.
WongNHChenYOngCLSiaA.Investigation of thermal benefits of rooftop garden in the tropical environment. Build Environ2003;
38: 261–270.
HienWNJusufSK.An assessment method for existing greenery conditions in a university campus. Archit Sci Rev2008;
51: 212–222.
37.
MSS (Meteorological Service Singapore).Annual climate reports.
Singapore:
Author, 2018.
38.
Yiqi TaoS.Post-occupancy evaluation on the physical environment of five care and attention homes for the elderly in Hong Kong. Int J Aging Soc2017;
7: 73–85.
39.
FeriadiHWongNH.Thermal comfort for naturally ventilated houses in Indonesia. Energy Build2004;
36: 614–626.
40.
YangWWongNHJusufSK.Thermal comfort in outdoor urban spaces in Singapore. Build Environ2013;
59: 426–435.
41.
DefraeyeTCarmelietJ.A methodology to assess the influence of local wind conditions and building orientation on the convective heat transfer at building surfaces. Environ Model Softw2010;
25: 1813–1824.
42.
Al-TamimiNAMFadzilSFSHarunWMW.The effects of orientation, ventilation, and varied WWR on the thermal performance of residential rooms in the tropics. J Sustain Dev2011;
4: 142.
43.
KakonANNobuoMKojimaSYokoT.Assessment of thermal comfort in respect to building height in a high-density city in the tropics. Am J Eng Appl Sci2010;
3: 545–551.
44.
GouZLauSS-YChenF.Subjective and objective evaluation of the thermal environment in a three-star green office building in China. Indoor Built Environ2012;
21: 412–422.
45.
BayJ-HWangNLiangQKongP.Socio-environmental dimensions in tropical semi-open spaces of high-rise housing in Singapore. In: BayJ-HOngB-L (eds) Tropical sustainable architecture: social and environmental dimensions.
Oxford:
Architectural Press, 2007, pp.59–82.
