Supermarkets: Refrigerated Food Cabinets

Peuhkuri

et al. 2018

Energy and Buildings

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Section: Accepted M M a N U mentioning

confidence: 99%

Long term in situ measurements of hygrothermal conditions at critical points in four cases of internally insulated historic solid masonry walls

Hansen

Peuhkuri

et al. 2018

Energy and Buildings

“…Supplementary plots, summary of the key results and datasets are available in Jensen et al (2019). The results are shown in different graphs: RH, moisture concentration and VTT mould index (Hukka and Viitanen, 1999;Ojanen et al, 2010;Viitanen et al, 2015).…”

Section: Resultsmentioning

confidence: 99%

“…The mould growth risk was assessed using the mathematical model by Hukka and Viitanen (VTT model;Hukka and Viitanen, 1999;Ojanen et al, 2010;Viitanen et al, 2015). Critical RH, RHcrit, is calculated as a function of temperature, and mould growth occurs when RH˜RHcrit and T .…”

Section: Mould Growthmentioning

confidence: 99%

Hygrothermal assessment of north-facing, cold attic spaces under the eaves with varying structural roof scenarios

Jensen

Journal of Building Physics

Johnston

et al. 2019

The objective of this study was to test whether compliance with the current Danish best practice recommendations concerning design of the cold attic space will prevent damaging moisture levels. The project was performed as a full-scale experimental setup in the cool temperate climate of Denmark. The setup comprised 18 north-facing attic spaces with varying ventilation principles and varying infiltration scenarios. The relative humidity and temperature were measured in attic spaces, indoor and outdoor, for almost 3 years. The hygrothermal performance of the attics was evaluated by post-processing and comparing the data with predicted mould growth risk and with visual observations of mould growth. The results showed that following the recommended passive ventilation strategies made the hygrothermal performance in attics with diffusion-open roofing underlay worse. In addition, increasing vapour diffusion tightness of the roofing underlay made the hygrothermal performance of the cold attic spaces under the eaves worse, except for attics with passive ventilation but without infiltration. The hygrothermal performance of the attics with diffusion-tight roofing underlay was poor when combining infiltration and the assessed ventilation strategy. The performance of the same attic without infiltration showed that some degree of ventilation was needed. External roof insulation did not significantly improve the hygrothermal performance of the attic.

“…The thermal conductivity values of the materials in the model were mainly obtained from the Delphin material database [24,25] The properties of air was defined in COMSOL Multiphysics [23]. The heat transfer through the air was thereby not limited to conduction, but also included radiation and convection, depending on the dimensions of the object.…”

Section: Thermal Heat Flux Models Based On Danish Construction Legismentioning

confidence: 99%

Interior insulation—Characterisation of the historic, solid masonry building segment and analysis of the heat saving potential by 1d, 2d, and 3d simulation

Odgaard

Rode

2018

Energy and Buildings