Abstract

Outdoor spaces are important to sustainable cities as they accommodate different types of activities and contribute to the livability of the urban areas. The enjoyment of outdoor spaces requires a comfortable thermal environment, especially in hot arid regions. Recent studies have investigated the effects of buildings, trees, water, and landscape design on improving thermal comfort; however, only a few studies have investigated the impact of solar-scape elements. The objective of this study was to investigate the effect of solar pavilions on improving thermal comfort in a residential area in New Borg Al-Arab, Egypt, and to identify the optimum distribution method for increasing the usability and function of outdoor spaces during the summer. This study was undertaken on a summer’s day in the peak period using ENVI-met software. Five scenarios employing different solar pavilion distribution methods were applied and simulated in the case study area. Physiological equivalent temperature values were calculated for each scenario. The results demonstrated that the individual distribution of solar pavilions was the best at improving thermal comfort. A design methodology for urban designers is suggested to improve outdoor thermal comfort and satisfy users' demand for energy in existing and new communities.

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Acknowledgments

This research was conducted in Japan and the first author would like to thank the Egyptian Ministry of Higher Education for providing financial support (Ph.D. scholarship), as well as the Tokyo Institute of Technology, and the Egypt–Japan University of Science and Technology for offering the facilities needed to conduct this work.

References

Barakat, A., H. Ayad, and Z. El-Sayed. 2017. “Urban design in favor of human thermal comfort for hot arid climate using advanced simulation methods.” Alexandria Eng. J. 56 (4): 533–543. https://doi.org/10.1016/j.aej.2017.04.008.
Basaly, L. G. 2015. “The functional efficiency of open spaces in universities’ Campuses: An analytical study.” Master thesis, Architecture Dept., Cairo Univ.
Basaly, L. G., M. G. Ibrahim, and M. R. M. Abdelaal. 2019a. “Effect of the PV position and orientation on improving thermal comfort.” In Proc., 2nd Int. Conf. of Chemical, Energy and Environmental Engineering, 299–303. Accessed December 12, 2019. https://icceee.ejust.edu.eg/proceedings/.
Basaly, L. G., M. G. Ibrahim, N. M. Badawy, M. R. M. Abdelaal, and A. A. M. Ali. 2019b. “Improving the functional performance of outdoor spaces in hot arid region using photovoltaics systems.” In 2019 Advances in Science and Engineering Technology Int. Conf., 1–5. New York: IEEE.
Boeri, A., and J. Gaspari. 2015. “A multi-layer approach to urban re generation: Energy efficiency and comfort condition optimization.” TECHNE-J. Technol. Archit. Environ. 10: 214–221.
Bosselmann, P., K. Dake, L. Fountain, L. Kraus, L. Harris, and A. Harris. 1988. Sun, wind and comfort: Study of thermal comfort in San Francisco. Berkeley, CA: Centre for Environmental Design Research, Univ. of California.
Bourbia, F., and F. Boucheriba. 2010. “Impact of street design on urban microclimate for semi arid climate (Constantine).” Renewable Energy 35 (2): 343–347. https://doi.org/10.1016/j.renene.2009.07.017.
Bruse, M. 1999. “Die Auswirkungen kleinskaliger Umweltgestaltung auf das Mikroklima: Entwicklung des prognostischen numerischen Modells ENVI-met zur Simulation der Wind-, Temperatur-und Feuchteverteilung in städtischen Strukturen.” Ph.D. thesis, Geosciences, Ruhr-Univ. Bochum.
Bruse, M. 2019. “ENVI-met.” Accessed October 10, 2019. https://www.envi-met.com/.
Bruse, M., and H. Fleer. 1998. “Simulating surface–plant–air interactions inside urban environments with a three dimensional numerical model.” Environ. Modell. Software 13 (3–4): 373–384. https://doi.org/10.1016/S1364-8152(98)00042-5.
Byrne, J., J. Taminiau, K. N. Kim, J. Seo, and J. Lee. 2016. “A solar city strategy applied to six municipalities: Integrating market, finance, and policy factors for infrastructure-scale photovoltaic development in Amsterdam, London, Munich, New York, Seoul, and Tokyo.” Wiley Interdiscip. Rev. 5 (1): 68–88. https://doi.org/10.1002/wene.182.
Cardona, A. J. A., C. A. P. Chica, and D. H. O. Barragán. 2018. Building-integrated photovoltaic systems (BIPVS): Performance and modeling under outdoor conditions. Berlin: Springer.
Carr, S., C. Stephen, M. Francis, L. G. Rivlin, and A. M. Stone. 1992. Public space. Cambridge, UK: Cambridge University Press.
Chen, L., and E. Ng. 2012. “Outdoor thermal comfort and outdoor activities: A review of research in the past decade.” Cities 29 (2): 118–125. https://doi.org/10.1016/j.cities.2011.08.006.
ClimateOneBuilding. 2018. “Weather and climate data for building simulation.” Accessed November 6, 2019. http://climate.onebuilding.org/.
El-Bardisy, W. M., M. Fahmy, and G. F. El-Gohary. 2016. “Climatic sensitive landscape design: Towards a better microclimate through plantation in public schools, Cairo, Egypt.” Procedia 216: 206–216. https://doi.org/10.1016/j.sbspro.2015.12.029.
Elnabawi, M. H., N. Hamza, and S. Dudek. 2015. “Numerical modelling evaluation for the microclimate of an outdoor urban form in Cairo, Egypt.” HBRC J. 11 (2): 246–251. https://doi.org/10.1016/j.hbrcj.2014.03.004.
Elnabawi, M. H., N. Hamza, and S. Dudek. 2016. “Thermal perception of outdoor urban spaces in the hot arid region of Cairo, Egypt.” Sustainable Cities Soc. 22: 136–145. https://doi.org/10.1016/j.scs.2016.02.005.
ENVI-met. 2019a. “ENVI-met 4. A holistic microclimate modelling system.” Accessed May 1, 2019. https://envi-met.info/doku.php?id=root:start.
ENVI-met. 2019b. “ENVI-met brochure: Decoding urban nature.” Accessed October 10, 2019. https://www.envi-met.com/.
Fahmy, M., and S. Sharples. 2008. “307; passive design for urban thermal comfort: A comparison between different urban forms in Cairo, Egypt.” In Proc., 25th Conf. on Passive and Low Energy Architecture, 1–6. Accessed October 21, 2019. http://web5.arch.cuhk.edu.hk/server1/staff1/edward/www/plea2018/plea/2008/content/index.html.
Fahmy, M., and S. Sharples. 2009. “On the development of an urban passive thermal comfort system in Cairo, Egypt.” Build. Environ. 44 (9): 1907–1916. https://doi.org/10.1016/j.buildenv.2009.01.010.
Fahmy, M., S. Sharples, and A. Eltrapolsi. 2009. “Dual stage simulations to study the microclimatic effects of trees on thermal comfort in a residential building, Cairo, Egypt.” In Proc., 11th Int. IBPSA Conf., 1–7. Accessed October 18, 2019. http://www.ibpsa.org/conferences/.
Fahmy, M., S. Sharples, and M. Yahiya. 2010. “LAI based trees selection for mid latitude urban developments: A microclimatic study in Cairo, Egypt.” Build. Environ. 45 (2): 345–357. https://doi.org/10.1016/j.buildenv.2009.06.014.
Fröhlich, D., and A. Matzarakis. 2013. “Modeling of changes in thermal bioclimate: Examples based on urban spaces in Freiburg, Germany.” Theor. Appl. Climatol. 111 (3–4): 547–558. https://doi.org/10.1007/s00704-012-0678-y.
Galal, O. M., D. J. Sailor, and H. Mahmoud. 2020. “The impact of urban form on outdoor thermal comfort in hot arid environments during daylight hours, case study: New Aswan.” Build. Environ. 184: 107222. https://doi.org/10.1016/j.buildenv.2020.107222.
Gehl, J., and L. Gemz. 2004. Public spaces-public life. Kbh, Denmark: Arkitektens Forlag.
Gold, E. 1935. “The effect of wind, temperature, humidity and sunshine on the loss of heat of a body at temperature 98°F.” Q. J. R. Meteorolog. Soc. 61 (261): 316–346. https://doi.org/10.1002/qj.49706126104.
Höppe, P. 1999. “The physiological equivalent temperature—A universal index for the biometeorological assessment of the thermal environment.” Int. J. Biometeorol. 43 (2): 71–75. https://doi.org/10.1007/s004840050118.
Huang, L., J. Li, D. Zhao, and J. Zhu. 2008. “A fieldwork study on the diurnal changes of urban microclimate in four types of ground cover and urban heat island of Nanjing, China.” Build. Environ. 43 (1): 7–17. https://doi.org/10.1016/j.buildenv.2006.11.025.
Huttner, S. 2012. “Further development and application of the 3D microclimate simulation ENVI-met.” Ph.D. thesis, Chemistry, Pharmacy and Geosciences, Mainz Univ.
Hwang, R.-L., and T.-P. Lin. 2007. “Thermal comfort requirements for occupants of semi-outdoor and outdoor environments in hot-humid regions.” Archit. Sci. Rev. 50 (4): 357–364. https://doi.org/10.3763/asre.2007.5043.
Keller, M. C., B. L. Fredrickson, O. Ybarra, S. Côté, K. Johnson, J. Mikels, A. Conway, and T. Wager. 2005. “A warm heart and a clear head: The contingent effects of weather on mood and cognition.” Psychol. Sci. 16 (9): 724–731. https://doi.org/10.1111/j.1467-9280.2005.01602.x.
Krüger, E. L., and D. Pearlmutter. 2008. “The effect of urban evaporation on building energy demand in an arid environment.” Energy Build. 40 (11): 2090–2098. https://doi.org/10.1016/j.enbuild.2008.06.002.
Lee, Y. Y., M. F. Md Din, K. Iwao, Y. H. Lee, and N. Anting. 2020. “Impact of thermal behaviour of different environmental conditions on ambient environment and thermal discomfort in Malaysia.” Indoor Built Environ. 30 (4): 1420326X19897956. https://doi.org/10.1177/1420326X19897956.
Li, K., Y. Zhang, and L. Zhao. 2016. “Outdoor thermal comfort and activities in the urban residential community in a humid subtropical area of China.” Energy Build. 133: 498–511. https://doi.org/10.1016/j.enbuild.2016.10.013.
Lin, T.-P. 2009. “Thermal perception, adaptation and attendance in a public square in hot and humid regions.” Build. Environ. 44 (10): 2017–2026. https://doi.org/10.1016/j.buildenv.2009.02.004.
Lin, T.-P., A. Matzarakis, and R.-L. Hwang. 2010. “Shading effect on long-term outdoor thermal comfort.” Build. Environ. 45 (1): 213–221. https://doi.org/10.1016/j.buildenv.2009.06.002.
Mahmoud, A. H. A. 2011. “Analysis of the microclimatic and human comfort conditions in an urban park in hot and arid regions.” Build. Environ. 46 (12): 2641–2656. https://doi.org/10.1016/j.buildenv.2011.06.025.
Marcus, C. C., and C. Francis. 1997. People places: Design guidlines for urban open space. Hoboken, NJ: John Wiley & Sons.
Maretto, M., and I. Samuels. 2012. Ecocities: Il progetto urbano tra morfologia e sostenibilità. Milan, Italy: Franco Angeli.
Maruani, T., and I. Amit-Cohen. 2007. “Open space planning models: A review of approaches and methods.” Landscape Urban Plann. 81 (1–2): 1–13. https://doi.org/10.1016/j.landurbplan.2007.01.003.
Matzarakis, A., and F. Rutz. 2010. “Application of the RayMan model in urban environments.” Ph.D. thesis, Environmental Meteorology, Meteorological Institute, Univ. of Freiburg.
Matzarakis, A., F. Rutz, and H. Mayer. 2007. “Modelling radiation fluxes in simple and complex environments—application of the RayMan model.” Int. J. Biometeorol. 51 (4): 323–334. https://doi.org/10.1007/s00484-006-0061-8.
Matzarakis, A., F. Rutz, and H. Mayer. 2010. “Modelling radiation fluxes in simple and complex environments: Basics of the RayMan model.” Int. J. Biometeorol. 54 (2): 131–139. https://doi.org/10.1007/s00484-009-0261-0.
Moussa, R. R. 2018. “The role of energy-scape elements in creating sustainable economic project in Egyptian parks.” Ain Shams Eng. J. 9 (4): 3045–3053. https://doi.org/10.1016/j.asej.2018.09.001.
Moussa, R. R., and A. H. A. Mahmoud. 2017. “Energy-scape elements: An approach on integrating landscape elements with renewable energy devices.” J. Cleaner Prod. 153: 114–130. https://doi.org/10.1016/j.jclepro.2017.03.077.
Nikolopoulou, M. 2004. Designing open spaces in the urban environment: A bioclimatic approach. Athens, Greece: Centre for Renewable Energy Sources.
Nikolopoulou, M., N. Baker, and K. Steemers. 2001. “Thermal comfort in outdoor urban spaces: Understanding the human parameter.” Sol. Energy 70 (3): 227–235. https://doi.org/10.1016/S0038-092X(00)00093-1.
Nikolopoulou, M., and S. Lykoudis. 2007. “Use of outdoor spaces and microclimate in a Mediterranean urban area.” Build. Environ. 42 (10): 3691–3707. https://doi.org/10.1016/j.buildenv.2006.09.008.
Nikolopoulou, M., and K. Steemers. 2003. “Thermal comfort and psychological adaptation as a guide for designing urban spaces.” Energy Build. 35 (1): 95–101. https://doi.org/10.1016/S0378-7788(02)00084-1.
Ozkeresteci, I., K. Crewe, A. Brazel, and M. Bruse. 2003. “Use and evaluation of the ENVI-met model for environmental design and planning: An experiment on linear parks.” In Proc., 21st Int. Cartographic Conf., 10–16. Bern, Switzerland: The International Cartographic Association (ICA).
Penwarden, A. D. 1973. “Acceptable wind speeds in towns.” Build. Sci. 8 (3): 259–267. https://doi.org/10.1016/0007-3628(73)90008-X.
Ramyar, R., E. Zarghami, and M. Bryant. 2019. “Spatio-temporal planning of urban neighborhoods in the context of global climate change: Lessons for urban form design in Tehran, Iran.” Sustainable Cities Soc. 51: 101554. https://doi.org/10.1016/j.scs.2019.101554.
Rehan Hussein, R. M., and M. R. M. Abdelaal. 2019. “Solar-scape as an effective tool in urban solar design.” Int. J. Innov. Res. Sci. Eng. Technol. 8 (3): 1735–1743.
Rosheidat, A., D. Hoffman, and H. Bryan. 2008. “Visualizing pedestrian comfort using ENVI-met.” Proc. SimBuild 3 (1): 198–205.
Shashua-Bar, L., M. E. Hoffman, and Y. Tzamir. 2006. “Integrated thermal effects of generic built forms and vegetation on the UCL microclimate.” Build. Environ. 41 (3): 343–354. https://doi.org/10.1016/j.buildenv.2005.01.032.
Simulation, D. E. 2019. “DesignBuilder.” Accessed October 15, 2019. https://designbuilder.co.uk/.
Sun, S., X. Xu, Z. Lao, W. Liu, Z. Li, E. H. García, L. He, and J. Zhu. 2017. “Evaluating the impact of urban green space and landscape design parameters on thermal comfort in hot summer by numerical simulation.” Build. Environ. 123: 277–288. https://doi.org/10.1016/j.buildenv.2017.07.010.
Toparlar, Y., B. Blocken, B. Maiheu, and G. J. F. van Heijst. 2017. “A review on the CFD analysis of urban microclimate.” Renewable Sustainable Energy Rev. 80: 1613–1640. https://doi.org/10.1016/j.rser.2017.05.248.
Voluntary National Reviews. 2018. Egypt’s voluntary national voluntary report 2018, 1–68. Cairo, Egypt: Ministry of Planning, Monitoring and Administrative Reform.
Wu, Z., F. Kong, Y. Wang, R. Sun, and L. Chen. 2016. “The impact of greenspace on thermal comfort in a residential quarter of Beijing, China.” Int. J. Environ. Res. Public Health 13 (12): 1217. https://doi.org/10.3390/ijerph13121217.
Zhao, Q., D. J. Sailor, and E. A. Wentz. 2018. “Impact of tree locations and arrangements on outdoor microclimates and human thermal comfort in an urban residential environment.” Urban For. Urban Greening 32: 81–91. https://doi.org/10.1016/j.ufug.2018.03.022.

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Go to Journal of Urban Planning and Development
Journal of Urban Planning and Development
Volume 147Issue 3September 2021

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Received: Jul 29, 2020
Accepted: Mar 15, 2021
Published online: May 26, 2021
Published in print: Sep 1, 2021
Discussion open until: Oct 26, 2021

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Lucienne G. Basaly [email protected]
Ph.D. Candidate, Dept. of Environmental Engineering, School of Energy Resources, Environmental and Chemical and Petrochemical Engineering, Egypt-Japan Univ. of Science and Technology (E-JUST), Alexandria 21934, Egypt; Ph.D. Exchange Program, Dept. of Architecture and Building Engineering, School of Environment and Society, Tokyo Institute of Technology, Tokyo 152-8552, Japan; Lecturer Assistant, Architecture and Urban Planning Dept., Suez Canal Univ. (SCU), Al-Ismailia 41522, Egypt (corresponding author). Email: [email protected]
Mona Gamal Ibrahim, Ph.D.
Professor, Dean of School of Energy Resources, Environmental and Chemical and Petrochemical Engineering, Egypt-Japan Univ. of Science and Technology (E-JUST), Alexandria 21934, Egypt; Environmental Health Dept., High Institute of Public Health, Alexandria Univ., Alexandria 21934, Egypt.
Nancy Mahmoud Badawy, Ph.D. https://orcid.org/0000-0001-9967-5670
Lecturer, Architecture and Urban Planning Dept., Port Said Univ., Port Said 42526, Egypt. ORCID: https://orcid.org/0000-0001-9967-5670.
Mohammad Refaat M. Abdelaal, Ph.D. https://orcid.org/0000-0002-2662-292X
Associate Professor, Architecture and Urban Planning Dept., Suez Canal Univ. (SCU), Al-Ismailia 41522, Egypt. ORCID: https://orcid.org/0000-0002-2662-292X.
Ryo Murata, Ph.D.
Associate Professor, Dept. of Architecture and Building Engineering, Tokyo Institute of Technology, Tokyo 152-8552, Japan.

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