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Cardiff University (2019)

Domestic energy use and suppressed energy demand in hot-arid climate

Shallal, Balsam

Titre : Domestic energy use and suppressed energy demand in hot-arid climate

Auteur : Shallal, Balsam

Etablissement de soutenance : Cardiff University

Grade : Doctor of Philosophy (PhD) 2019

Résumé partiel
The provision of energy services in many developing countries is insufficient to meet the growing demand for energy. The lack of access to energy infrastructure and poverty often result in unmet or suppressed energy demand, an appreciation of which is critical for the planning and development of energy infrastructures and services. Buildings account for 36% of global final energy consumption and 40% of carbon equivalent emissions. Therefore, understanding how suppressed demand is manifest in building energy consumption is essential to project future demand. However, many gaps exist in the literature on the nature and variability of suppressed energy demand in developing countries, especially in the hot-arid regions that rely on energy-intensive cooling to maintain indoor thermal comfort. Anthropogenic global warming and the resulting rise in surface temperatures will likely exacerbate this situation. This research aims to fill the gap in existing knowledge by developing an analytical method for the estimation of hourly suppressed energy demand in buildings and by investigating its temporal variability, and its influence on energy use and indoor thermal environment. Energy use was monitored at a resolution of 12-sec intervals, while the indoor and outdoor environmental conditions were monitored at a resolution of 5 minutes between January 2017 and August 2018 in seven case studies in Baghdad to identify baseline energy consumption against monitored ambient conditions. A questionnaire and semi-structured interviews were conducted among 210 households to investigate their energy use with the related dimensions including socio-economic influences and environmental systems. The analysis of the energy use and environmental data resulted in the development of a method to estimate suppressed energy demand and its environmental implications.

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