Optimization of thermal insulation thickness pertaining to embodied and operational GHG emissions in cold climates – Future and present cases

Gaarder, Jørn Emil; Friis, Naja Kastrup; Larsen, Ingrid Sølverud; Time, Berit; Møller, Eva B.; Kvande, Tore

doi:10.1016/j.buildenv.2023.110187

Cited by 17 publications

(5 citation statements)

References 23 publications

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“…For instance, in cold climates, whether to increase insulation thickness to compensate for less renewable energy demand, as well as the ideal thickness for thermal insulation, are investigated [40,41]. Also, the impact of embodied carbon exerted as a whole life cycle aspect was studied; as a matter of fact, the embodied impact is often neglected when compared to the operational part by the current assessment framework [42].…”

Section: Optimal Design For Climate and Costmentioning

confidence: 99%

Towards Zero: A Review on Strategies in Achieving Net-Zero-Energy and Net-Zero-Carbon Buildings

Lou,

Hsieh

2024

Sustainability

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The establishment of net-zero-energy and net-zero-carbon buildings can offer significant opportunities to reduce environmental impact in the building sector. Several successful net-zero-energy buildings highlight the feasibility of reducing energy consumption via energy-efficient strategies and the use of renewable energy technologies. To comprehend the existing innovatory designs, techniques, and practices employed to achieve net-zero-energy buildings, this research aims to review the up-to-date advancements in net-zero-energy building practices. The utilization of embodied carbon assessments to achieve the net-zero status of buildings is explored. The findings indicate an escalating global interest and participation in the field of study, and reveal three major areas related to net-zero-energy buildings: multidisciplinary approaches, energy systems, and guidance, which together cover thirteen subfields. The role of life cycle assessment in buildings is emphasized, offering insights into the role of embodied emissions relative to operational emissions over the entire life cycle of a building. In the end, possible future study directions are outlined, including balancing energy efficiency with sustainability, and assessing the impact of design on emissions and economic outcomes. These areas collectively contribute to transforming sustainable building concepts into reality.

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Section: Optimal Design For Climate and Costmentioning

confidence: 99%

Towards Zero: A Review on Strategies in Achieving Net-Zero-Energy and Net-Zero-Carbon Buildings

Lou,

Hsieh

2024

Sustainability

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“…Additionally, change in land-use and agricultural practices, methane emissions from livestock, peatland degradation, hasty industrial expansion and the increased transportation demand also contribute substantially towards this emission. Gaarder et al (2023) The paper provided a gainful insight on the optimum insulation thickness of building envelope in cold climates, in view of both the embodied carbon emission during the production of insulation material and the energy saving attained through the reduced heating requirements i.e. operational greenhouse gas (GHG).…”

Section: Cano Et Al (2023)mentioning

confidence: 99%

A Review on Calculating Carbon Footprint of an Educational Institute

Chauhan,

Sharma

2024

IJRASET

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Carbon footprint is the carbon emitted from various greenhouse gases during any activity within or outside its operational boundary. Presently various building operations are contributing significantly towards the carbon footprint. Various commercial and public buildings are thus under observations for such calculations. Educational institutes around the world have gained special popularity in the direction of calculating the carbon footprint, as these have huge potential towards fulfilling the goal of sustainable planet. In this study, the prime focus is on reviewing various methodology adopted to find out these carbon emissions

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“…Residential buildings and industries use more than 60% of the energy produced. , The scientific approach to mitigating an energy shortage is to generate new energy using different sources or optimize the available energy. , Using an insulating layer on the surface of the heat source vessel effectively reduces the heat loss from the surface . Accordingly, the thermal performance and optimal thickness of insulation materials for a given scenario have long interested researchers, and these issues are now being investigated in light of the current need for energy conservation in the face of finite energy resources. − Several heat transfer-related investigations have aimed to compute the optimal generation, loss, or transfer of heat in different scenarios and setups with or without thermal insulation . These setups differ regarding shape, requirements, and utility, which has increased the requirement to optimize thermal systems. − Numerous studies have reported methods to optimize heat transfer problems using different optimization techniques, as described below.…”

Section: Introductionmentioning

confidence: 99%

Optimizing the Heat Loss from an Insulation Material and Boundary Layer Thickness of Airflow through a Hot Plate Using Nonlinear Least-Squares Error and Linear Programming Algorithms

Alrasheed

2023

ACS Omega

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Heat loss is a major challenge in heat transfer problems. Several researchers have minimized heat loss for different heat transfer cases, focusing on one optimization technique; however, not all optimization techniques are suitable for a given problem. A limited number of studies have compared different techniques for a given problem under boundary conditions and constraints. This review revisits basic heat transfer problems and identifies a promising technique for each problem to minimize heat loss. The paper considers three techniques: nonlinear least-squares error (LSE), interior point linear programming (IPLP), and genetic algorithm. Two cases are studied: 1. heat loss optimization from cylindrical insulating surfaces and 2. laminar airflow on a heated plate. The results are compared for each technique, and a suitable technique is recommended for each considered case. Nonlinear LSE is found to be most suitable for case 1. IPLP and GA are recommended for the Case 2 problem. The average thermal conductivity is found to be 0.081 W/mK. The average insulation thickness is found to be 213.25 mm. This research will act as a basis for future research to justify and implement suitable techniques for different heat transfer problems.

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Optimization of thermal insulation thickness pertaining to embodied and operational GHG emissions in cold climates – Future and present cases

Cited by 17 publications

References 23 publications

Towards Zero: A Review on Strategies in Achieving Net-Zero-Energy and Net-Zero-Carbon Buildings

Towards Zero: A Review on Strategies in Achieving Net-Zero-Energy and Net-Zero-Carbon Buildings

A Review on Calculating Carbon Footprint of an Educational Institute

Optimizing the Heat Loss from an Insulation Material and Boundary Layer Thickness of Airflow through a Hot Plate Using Nonlinear Least-Squares Error and Linear Programming Algorithms

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