Lumped-element model: Difference between revisions

Revision as of 03:18, 15 September 2019

Revision as of 03:19, 15 September 2019

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== Heat transfer for buildings ==

TheA simplifying assumption in this ___domain is that all heat transfer mechanisms are: linear, implying that radiation and convection are linearised for each problem.

* all heat transfer mechanisms are linear, implying that radiation and convection are linearised for each problem;

Several publications can be found that describe how to generate lumped-element models of buildings. In most cases, the building is considered a single thermal zone and in this case, turning multi-layered walls into lumped elements can be one of the most complicated tasks in the creation of the model. The dominant-layer method is one simple and reasonably accurate method.<ref>Ramallo-González, A.P., Eames, M.E. & Coley, D.A., 2013. Lumped Parameter Models for Building Thermal Modelling: An Analytic approach to simplifying complex multi-layered constructions. Energy and Buildings, 60, pp.174-184.</ref> In this method, one of the layers is selected as the dominant layer in the whole construction, this layer is chosen considering the most relevant frequencies of the problem. In his thesis,<ref>Ramallo-González, A.P. 2013. Modelling Simulation and Optimisation of Low-energy Buildings. PhD. University of Exeter.</ref>