Assessment of ICF Energy Saving Potentials in Whole Building Performance Simulation Tools

Mantesi, Eirini; Hopfe, Christina J.; Glass, Jacqueline; Cook, Malcolm

doi:10.26868/25222708.2015.2961

Cited by 3 publications

(2 citation statements)

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“…Due to the internal layer of insulation, ICF acts as an insulated panel, acting thermally as a lightweight structure. Research associated with ICF in the UK mainly uses computational analysis (Mantesi et al, 2015;Mantesi et al, 2016). Previous computational, numerical and field studies conducted elsewhere indicated that in cold climates the thermal capacity of its concrete core shows evidence of heat storage effects, resulting ultimately in reduced energy consumption when compared to a lightweight conventional timber-framed wall with equal levels of insulation (Hart et al, 2014;Armstrong, 2012).…”

Section: Figure 1 Prefabricated Expanded Polystyrene (Eps) Hollow Blo...mentioning

confidence: 99%

The Role of Fabric Performance in the Seasonal Overheating of Dwellings

Mourkos

Mantesi

Hopfe

et al. 2017

Building Simulation Conference Proceedings

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Airtightness and thermal conductance of the fabric play a key role in constructing low energy buildings. These two factors might minimise the building's heating demand in winter but contribute to its overheating in summer. This study focused on a building using Insulated Concrete Formwork (ICF), a site-based Modern Methods of Construction (MMC). ICF walls consist of cast in situ concrete poured between two layers of Expanded Polystyrene (EPS) insulation. The walls can achieve very low U-values and high levels of airtightness. The overall aim was to investigate the resilience or vulnerability of the ICF to overheating. A whole building monitoring study was used to empirically investigate the impact of the ICF fabric performance and to validate the accuracy of Building Performance Simulation (BPS) predictions provided by two tools. The results indicate that the building was able to provide a stable internal environment. In addition, both tools were able to predict indoor temperatures in a consistent way. However, the outcome of the analysis highlighted the significance of selecting appropriate data in terms of weather, internal gains and occupant behaviour when assessing overheating and the importance of developing a methodology for model calibration against indoor air temperatures for overheating assessment.

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Section: Figure 1 Prefabricated Expanded Polystyrene (Eps) Hollow Blo...mentioning

confidence: 99%

The Role of Fabric Performance in the Seasonal Overheating of Dwellings

Mourkos

Mantesi

Hopfe

et al. 2017

Building Simulation Conference Proceedings

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“…They concluded that discrepancies in simulation results are larger for high thermal mass cases. This work is the first part of a doctoral research project seeking to investigate the thermal behaviour of heavyweight construction methods (Mantesi et al, 2015) and quantify the effects of thermal mass in low carbon building design. The aim of the paper is to provide a comparison of six widely-used dynamic BPS tools, with respect to their ability in calculating the effect of thermal mass, and to investigate the impact of several key influencial parameters in the source code associated with thermal mass calculation.…”

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confidence: 99%

Review of the Assessment of Thermal Mass in Whole Building Performance Simulation Tools

Mantesi

Cook²,

Glass³

et al. 2015

Building Simulation Conference Proceedings

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There is a plethora of dynamic Building Performance Simulation (BPS) tools on the market, that use different methods in terms of how they calculate the effect of thermal mass in buildings. This paper analyses the ability of six widely known BPS tools to calculate the thermal mass potential in whole BPS. The first stage is focused on the analysis of heating and cooling energy consumption, produced for a single-zone test building. This is done using the IEA Building Energy Simulation test (BESTEST) diagnostic method. The results are compared among the different BPS tools in order to examine the extent of variations. The second stage is a systematic comparison of the tools against some key parameters on the calculation methods and aims to investigate the implications of the inter-model variability on the simulation results. The results indicate that there is a divergence in the BPS predictions, and that the relative differences in the simulation results of the different BPS tools are always higher for high thermal mass.

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Comparative assessment of insulated concrete wall technologies and wood-frame walls in residential buildings: a multi-criteria analysis of hygrothermal performance, cost, and environmental footprints

Fard

Jafarpour

2019

Advances in Building Energy Research

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Assessment of ICF Energy Saving Potentials in Whole Building Performance Simulation Tools

Cited by 3 publications

References 0 publications

The Role of Fabric Performance in the Seasonal Overheating of Dwellings

The Role of Fabric Performance in the Seasonal Overheating of Dwellings

Review of the Assessment of Thermal Mass in Whole Building Performance Simulation Tools

Comparative assessment of insulated concrete wall technologies and wood-frame walls in residential buildings: a multi-criteria analysis of hygrothermal performance, cost, and environmental footprints

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