Cost-optimal insulation thickness in dry and mesothermal climates: Existing models and their improvement

Fokaides, Paris A.; Papadopoulos, Agis M.

doi:10.1016/j.enbuild.2013.09.006

Cited by 57 publications

(22 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The existing building stock consumes a momentous quota of the total primary energy in many countries [60,61]. Additionally, many of the buildings that will exist in 2050 are the ones that exist today; thus, it is logical to focus on minimizing this energy demand.…”

Section: Energy Consumptionmentioning

confidence: 99%

Performance of Modular Prefabricated Architecture: Case Study-Based Review and Future Pathways

2016

View full text Add to dashboard Cite

Even though tightened building energy efficiency standards are implemented periodically in many countries, existing buildings continually consume a momentous quota of the total primary energy. Energy efficiency solutions range from material components to bulk systems. A technique of building construction, referred to as prefabricated architecture (prefab), is increasing in reputation. Prefab encompasses the offsite fabrication of building components to a greater degree of finish as bulk building structures and systems, and their assembly on-site. In this context, prefab improves the speed of construction, quality of architecture, efficiency of materials, and worker safety, while limiting environmental impacts of construction, as compared to conventional site-built construction practices. Quite recently, a 57 story skyscraper was built in 19 days using prefabricated modules. From the building physics point of view, the bulk systems and tighter integration method of prefab minimizes thermal bridges. This study seeks to clearly characterize the levels of prefab and to investigate the performance of modular prefab; considering acoustic constrain, seismic resistance, thermal behavior, energy consumption, and life cycle analysis of existing prefab cases and, thus, provides a dynamic case study-based review. Generally, prefab can be categorized into components, panels (2D), modules (3D), hybrids, and unitized whole buildings. On average, greenhouse gas emissions from conventional construction were higher than for modular construction, not discounting some individual discrepancies. Few studies have focused on monitored data on prefab and occupants' comfort but additional studies are required to understand the public's perception of the technology. The scope of the work examined will be of interest to building engineers, manufacturers, and energy experts, as well as serve as a foundational reference for future study.

show abstract

Section: Energy Consumptionmentioning

confidence: 99%

Performance of Modular Prefabricated Architecture: Case Study-Based Review and Future Pathways

2016

View full text Add to dashboard Cite

show abstract

“…It is obvious from the results that there is no linear reduction in the energy losses through building elements with regard to the insulation thickness. Taking into consideration the study of Fokaides and Papadopoulos (2014), there is an optimal thickness where the building shell has the optimal energy losses. Thus, in the study we took as a fact the reduction of the U value in the limits of nearly zero houses.…”

Section: Resultsmentioning

confidence: 99%

“…There has been study on various simulation scenarios for the energy improvement of the existing buildings (Florides et al, 2001). Moreover, there has been studies on the optimal insulation thickness for the Mediterranean countries (Fokaides and Papadopoulos, 2014).…”

Section: Introductionmentioning

confidence: 99%

Field survey on multi-family buildings in order to depict their energy characteristics

Chadiarakou

Santamouris

2014

International Journal of Sustainable Energy

View full text Add to dashboard Cite

The energy performance of buildings directive (EPBD) (91/2002/EU) opened the way for member states of European Union to create and apply a holistic approach on buildings' energy performance. Taking into consideration the reduced ratio of new buildings, energy refurbishment of existing building stock appears as a nodal point. In particular, buildings in Greece accounts approximately 4 million, while 70% has been constructed before the implementation of the first Thermal Insulation Regulation (TIR), thus they do not have any insulation. So, there is an extremely high potential for energy conservation in Greek building stock. Therefore, an extensive field study was carried out in northern area of Greece in Thessaloniki, through a detailed questionnaire. The purpose of the research is to create an integrated thermal insulation scheme in order to succeed the highest mitigation of energy losses through building envelope. Retrofitting insulation solutions were evaluated and applied through various simulation scenarios with different levels of insulation thickness.

show abstract

“…Other authors [59][60][61][62][63] stress the importance of the thermal insulation of the building envelope in reducing the total energy consumption, which can be improved when combined with the application of new windows. Morelli et al [64] shows in a study that the theoretical energy use can be reduced by 68% as compared to the energy use prior to the retrofitting by the installation of insulation, new windows and a ventilation system with heat recovery [65].…”

Section: Phase 2 -Identification Of the Energy Efficiency Measures Fomentioning

confidence: 99%

EPBD cost-optimal methodology: Application to the thermal rehabilitation of the building envelope of a Portuguese residential reference building

Vasconcelos

Pinheiro

Manso

et al. 2016

Energy and Buildings

View full text Add to dashboard Cite

Cost-optimal insulation thickness in dry and mesothermal climates: Existing models and their improvement

Cited by 57 publications

References 28 publications

Performance of Modular Prefabricated Architecture: Case Study-Based Review and Future Pathways

Performance of Modular Prefabricated Architecture: Case Study-Based Review and Future Pathways

Field survey on multi-family buildings in order to depict their energy characteristics

EPBD cost-optimal methodology: Application to the thermal rehabilitation of the building envelope of a Portuguese residential reference building

Contact Info

Product

Resources

About