Inverse modeling of simplified hygrothermal building models to predict and characterize indoor climates

Kramer, Rick; Schijndel, Jos van; Schellen, H.L.

doi:10.1016/j.buildenv.2013.06.001

Cited by 68 publications

(32 citation statements)

References 33 publications

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“…Thus, the full building simulations give a better representation of the hygrothermal performance of the building but this is at a high cost of developing the model and relatively long times for computing. A second but simplified approach using state-spacemodels as transfer functions between the outdoor and indoor conditions was also applied for the prediction of indoor temperature and relative humidity [13,14]. The simplified hygrothermal building model is a simple mathematical function that calculates the indoor climate from the outdoor climate.…”

Section: Building Simulationsmentioning

confidence: 99%

Climate for Culture: assessing the impact of climate change on the future indoor climate in historic buildings using simulations

Leißner¹,

Kilian²,

et al. 2015

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Background: The present study reports results from the large-scale integrated EU project "Climate for Culture". The full name, or title, of the project is Climate for Culture: damage risk assessment, economic impact and mitigation strategies for sustainable preservation of cultural heritage in times of climate change. This paper focusses on implementing high resolution regional climate models together with new building simulation tools in order to predict future outdoor and indoor climate conditions. The potential impact of gradual climate change on historic buildings and on the vast collections they contain has been assessed. Two moderate IPCC emission scenarios A1B and RCP 4.5 were used to predict indoor climates in historic buildings from the recent past until the year 2100. Risks to the building and to the interiors with valuable artifacts were assessed using damage functions. A set of generic building types based on data from existing buildings were used to transfer outdoor climate conditions to indoor conditions using high resolution climate projections for Europe and the Mediterranean. Results:The high resolution climate change simulations have been performed with the regional climate model REMO over the whole of Europe including the Mediterranean region. Whole building simulation tools and a simplified building model were developed for historic buildings; they were forced with high resolution climate simulations. This has allowed maps of future climate-induced risks for historic buildings and their interiors to be produced. With this procedure future energy demands for building control can also be calculated. Conclusion:With the newly developed method described here not only can outdoor risks for cultural heritage assets resulting from climate change be assessed, but also risks for indoor collections. This can be done for individual buildings as well as on a larger scale in the form of European risk maps. By using different standardized and exemplary artificial buildings in modelling climate change impact, a comparison between different regions in Europe has become possible for the first time. The methodology will serve heritage owners and managers as a decision tool, helping them to plan more effectively mitigation and adaption measures at various levels.

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Section: Building Simulationsmentioning

confidence: 99%

Climate for Culture: assessing the impact of climate change on the future indoor climate in historic buildings using simulations

Leißner¹,

Kilian²,

et al. 2015

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“…Interference is nonetheless inevitable, and may even generate artificial or induced microclimates with steep temperature (T) and humidity (RH) fluctuations that may destabilise the fragile balance between indoor climate and conservation of the artistic and architectural heritage [1,4,5,7,10,11].…”

Section: Introductionmentioning

confidence: 99%

Fluctuations in the indoor environment in Spanish rural churches and their effects on heritage conservation: Hygro-thermal and CO 2 conditions monitoring

Varas–Muriel

Fort

Martínez-Garrido

et al. 2014

Building and Environment

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The indoor environment and its natural dynamics in small Spanish historical churches such as the studied here depend on the variations of outdoor climate and the moisture dynamics of walls, built with different materials. Such indoor environments are impacted by local factors, which may put at risk the conservation of a church's cultural assets. Natural ventilation in spring, the presence of people and especially the wintertime use of ageing heating system induce substantial fluctuations in indoor environments primarily affecting the stability of relative humidity (RH). RH is the physical parameter that can induce efflorescence as well as plaster blistering and detachment in its inside walls, drying and cracking in the timber and efflorescence and disgregation in the carved dolostone.Where the RH inside building is not high, as in the present case, natural and induced fluctuations may lower it considerably (<25 %), which is detrimental to conservation and human well-being both. Human presence partially counters the steep declines in RH attributable to heating in winter and warm, dry summer weather, although the trade-off is a rise in CO 2 levels inside the church.Heating induces substantial changes in the T and RH on the high altar and in the upper areas of the nave, while natural ventilation affects the RH at the base of the church and favours the elimination of CO 2 . The results obtained have allowed us to develop a series of recommendations that might be useful for the preventive conservation of such historic buildings, without compromising human comfort.

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“…This model type needs sufficient amount of measurement data for parameter identification and some information about the properties of the building. Generally, the methodology adopts a simplified physical model structure and then its parameters are estimated using measured data [36,37].…”

Section: Introductionmentioning

confidence: 99%

A Dynamic Model for Indoor Temperature Prediction in Buildings

2018

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A novel dynamic model for the temperature inside buildings is presented, aiming to improve energy efficiency by providing predictive information on the heat demand. To analyse the performance and generalizability of the modelling approach, real measurement data was gathered from five different types of buildings. Easily available data from various sources was utilized. The chosen model structure leads to a minimal number of input variables and free parameters. Simulations with real data from five buildings, and applying the identical model structure showed that the average modelling error during the 28-h prediction horizon was constantly below 5%. The results thus demonstrate that the model structure can be standardized and easily applied to predict the indoor temperatures of large buildings. This would finally enable demand side management and the predictive optimization of the heat demand at city level.

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Inverse modeling of simplified hygrothermal building models to predict and characterize indoor climates

Cited by 68 publications

References 33 publications

Climate for Culture: assessing the impact of climate change on the future indoor climate in historic buildings using simulations

Climate for Culture: assessing the impact of climate change on the future indoor climate in historic buildings using simulations

Fluctuations in the indoor environment in Spanish rural churches and their effects on heritage conservation: Hygro-thermal and CO 2 conditions monitoring

A Dynamic Model for Indoor Temperature Prediction in Buildings

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