On the heat flow into the ground

El-Din, M.M. Salah

doi:10.1016/s0960-1481(99)00005-1

Cited by 27 publications

(9 citation statements)

References 21 publications

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“…For example, it was found that thermal insulation within the inner surface was better for ensuring energy performance. 15 For the climate of Saudi Arabia, the optimum thickness of thermal insulation applied to the outer surface of an external wall was in the range of 5 to 10 cm. 15 Another study supported this.…”

Section: Introductionmentioning

confidence: 99%

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Investigation into energy performance of a school building in a hot climate: Optimum of window-to-wall ratio

Alwetaishi

Taki

2019

Indoor and Built Environment

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Global attention is currently focussed on developing techniques to improve the thermal performance of buildings to provide indoor comfort with minimum reliance on energy load. Several studies have investigated building facade, materials used and other factors involved in building design. The aim of this study is to examine the impact of thermal insulation, shading devices, window-to-wall ratio (WWR) and a combination of these factors in a prototype school building design in the warm climate city of Taif, Saudi Arabia. The study used various methods classified into two main phases. The first phase involved on-site observation where both thermal imaging and regular cameras were used to examine the influence of orientation on glazing as a baseline. The second phase involved advanced software investigations with 2D AutoCAD, 3D Revit and computer modelling for energy evaluation and daylight factor. A detailed framework was introduced to examine current school buildings and to improve the future designs of prototype school buildings. The study revealed that a combination of applying thermal insulation along with minimising WWR is required in existing buildings within hot and dry regions. Furthermore, it was recommended that WWR should not exceed 35%, 25% and 20% for northwest, southeast and southwest building facades, respectively.

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Section: Introductionmentioning

confidence: 99%

“…15 For the climate of Saudi Arabia, the optimum thickness of thermal insulation applied to the outer surface of an external wall was in the range of 5 to 10 cm. 15 Another study supported this. Saleh 16 investigated the impact of insulation configuration on the annual cooling load in the city of Riyadh.…”

Section: Introductionmentioning

confidence: 99%

Investigation into energy performance of a school building in a hot climate: Optimum of window-to-wall ratio

Alwetaishi

Taki

2019

Indoor and Built Environment

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“…Such details provide a proper account of the renewable energy resource. However, due to the complexity of adding all the above heat fluxes in a numerical model, some studies assume the ground surface temperature variation at the ground surface to take the form of a sine wave or Fourier series [57][58][59][60], while, in most analytical approaches, the ground surface boundary is assumed to have a constant temperature equal to the soil temperature deep in the ground (by superimposing an identical mirror borehole above the ground surface with negative strength). Moreover, some studies simplify the problem further and assume an adiabatic boundary condition at the ground surface.…”

Section: Other Modeling Aspectsmentioning

confidence: 99%

A Review of the Modelling of Thermally Interacting Multiple Boreholes

Koohi-Fayegh

Rosen

2013

Sustainability

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Much attention is now focused on utilizing ground heat pumps for heating and cooling buildings, as well as water heating, refrigeration and other thermal tasks. Modeling such systems is important for understanding, designing and optimizing their performance and characteristics. Several heat transfer models exist for ground heat exchangers. In this review article, challenges of modelling heat transfer in vertical heat exchangers are described, some analytical and numerical models are reviewed and compared, recent related developments are described and the importance of modelling these systems is discussed from a variety of aspects, such as sustainability of geothermal systems or their potential impacts on the ecosystems nearby.

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“…In addition, the analysis of ground temperature is usually based on the assumption that the temperature variation at the ground surface takes the form of a sine wave or a Fourier series (Salah El-Din 1999).…”

Section: Temperature Analysis Of Ground In Bolumentioning

confidence: 99%

Ground temperature estimations for Bolu, Turkey

Çamdalı

Tunç

2011

Environ Monit Assess

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The approximation of the soil temperature profile may be considered for many energy, environmental, and agriculture applications. In this study, temperature approximation model of ground in Bolu is developed. Unsteady state one-dimensional semi-infinite solid model is used to calculate temperature variation in ground. The results of the temperature equation which are obtained by using analytical method are compared with experimental data obtained from The Turkish State Meteorological Service. Developed model to predict soil temperature variation for Bolu has been solved by using MATLAB computer program. Satisfactory agreement is observed between them.

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On the heat flow into the ground

Cited by 27 publications

References 21 publications

Investigation into energy performance of a school building in a hot climate: Optimum of window-to-wall ratio

Investigation into energy performance of a school building in a hot climate: Optimum of window-to-wall ratio

A Review of the Modelling of Thermally Interacting Multiple Boreholes

Ground temperature estimations for Bolu, Turkey

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