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Babatunde, S O and Ekundayo, D (2019) Barriers to the incorporation of BIM into quantity surveying undergraduate curriculum in the Nigerian universities. Journal of Engineering, Design and Technology, 17(03), 629–48.

Bellifa, S and Boumechra, N (2019) Effects of calcium leaching on the physical and mechanical properties of aerial lime-cement mortars. Journal of Engineering, Design and Technology , 17(03), 649–66.

Dang, C N and Le-Hoai, L (2019) Relating knowledge creation factors to construction organizations’ effectiveness. Journal of Engineering, Design and Technology, 17(03), 515–36.

Dithebe, K, Aigbavboa, C O, Thwala, W D and Oke, A E (2019) Analysis on the perceived occurrence of challenges delaying the delivery of water infrastructure assets in South Africa. Journal of Engineering, Design and Technology , 17(03), 554–71.

Kereri, J O and Adamtey, S (2019) RFID use in residential/commercial construction industry. Journal of Engineering, Design and Technology , 17(03), 591–612.

Mayouf, M, Gerges, M and Cox, S (2019) 5D BIM: an investigation into the integration of quantity surveyors within the BIM process. Journal of Engineering, Design and Technology , 17(03), 537–53.

Mekid, S and Bashmal, S (2019) Engineering manipulation at nanoscale: further functional specifications. Journal of Engineering, Design and Technology, 17(03), 572–90.

Mostafaeipour, A, Goudarzi, H, Sedaghat, A, Jahangiri, M, Hadian, H, Rezaei, M, Golmohammadi, A and Karimi, P (2019) Energy efficiency for cooling buildings in hot and dry regions using sol-air temperature and ground temperature effects. Journal of Engineering, Design and Technology, 17(03), 613–28.

  • Type: Journal Article
  • Keywords: Energy saving; Ground temperature; Hot and dry climate; Sol-air temperature; Underground building;
  • ISBN/ISSN: 1726-0531
  • URL: https://doi.org/10.1108/JEDT-12-2018-0216
  • Abstract:
    In hot and dry climates, air conditioning accounts for a large portion of total energy consumption; therefore, this paper aims to investigate the impact of sol-air temperature and ground temperature on the loss of cooling energy in hot and dry regions of Iran. Design/methodology/approach In line with this objective, the values of sol-air temperature along different directions and ground temperature at different depths were assessed with respect to climatic data of Yazd City. The impact of sol-air temperature and ground temperature on the rate of heat loss was investigated. So, energy loss of the walls aligned to four primary directions was calculated. This process was repeated for a 36 m2 building with three different shape factors. All analyses were conducted for the period from May to September, during which buildings need to be cooled by air conditioners. Findings Numerical analyses conducted for hot and dry climate show that sol-air temperature leads to a 41-17 per cent increase in the wall’s energy loss compared with ambient temperature. Meanwhile, building the wall below the surface leads to a significant reduction in energy loss. For example, building the wall 400 cm below the surface leads to about 74.8-79.2 per cent energy saving compared with above ground design. The results also show that increasing the direct contact between soil and building envelope decreases the energy loss, so energy loss of a building that is built 400 cm below the surface is 53.7-55.3 per cent lower than that of a building built above the surface. Originality/value The impact of sol-air temperature and ground temperature on the cooling energy loss of a building in hot and dry climate was investigated. Numerical analysis shows that solar radiation increases heat loss from building envelope. Soil temperature fluctuations decrease with depth. Heat loss from building envelope in an underground building is lower than that from building envelope in a building built above the ground. Three different shape factors showed that sol-air temperature has the maximum impact on square-shaped plan and minimal impact on buildings with east-west orientation.

Thakur, N, Awasthi, Y, Hooda, M and Siddiqui, A S (2019) Adaptive whale optimization for intelligent multi-constraints power quality improvement under deregulated environment. Journal of Engineering, Design and Technology, 17(03), 490–514.

van Rensburg, R, Mellado, B and Augusto Marin Tobon, C (2019) Wireless mesh network data communications and reliability analysis for anti-theft application deployment in educational institutions. Journal of Engineering, Design and Technology, 17(03), 474–89.