Determination of optimum thickness of nano and traditional insulation materials for building external walls by using degree-day approach for different climatic regions in Egypt

Estimating Optimal Cost, Insulation Layer Thickness, and Structural Layer Thickness of Different Composite Insulation External Walls Using Computational Methods

“…The detailed examination of variation in insulation and structural layer thickness provides valuable insights into the optimal design of CIEW, emphasizing the relationship between these variables and life cycle costs, savings, and payback time. The findings show the need to integrate material properties, structural considerations, technological advancements, and regional factors for energy-efficient and economically viable construction practices [3,8]. This study's approach recognizes the interconnectedness of thermal efficiency, cost considerations, and environmental stewardship, paving the way for a more comprehensive approach to insulation design and construction [16,17].…”

“…Space conditioning, i.e., Heating, Ventilation, and Air Conditioning (HVAC) in these buildings, utilizes up to 50% of the consumed energy [2]. Use of thermal insulation in exterior walls is one of the energy conservation strategies [3]. However, determining the optimal thickness for insulating materials has emerged as a challenge.…”

“…The energy conservation solutions use optimal thermal insulation and structural layer thickness using experimental and computational methods [3,4]. The studies aimed to reduce the overall cost, increase energy savings, and reduce the payback period of insulation.…”

“…3 , or kJ/kWh) C E Annual energy consumption cost through CIEW (USD/kW) ∆C E Difference between heating and cooling energy costs saved with and without considering structure and insulation layers (USD/kW)…”