Browsing by Keyword "Office building"
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Item Comparison between Energy Simulation and Monitoring Data in an Office Building(2021-12-30) Martin-Escudero, Koldobika; Atxalandabaso, Garazi; Erkoreka, Aitor; Uriarte, Amaia; Porta, Matteo; EDIFICACIÓN DE ENERGÍA POSITIVA; Tecnalia Research & InnovationOne of the most important steps in the retrofitting process of a building is to understand its pre-retrofitting stage energy performance. The best choice for carrying this out is by means of a calibrated building energy simulation (BES) model. Then, the testing of different retrofitting solutions in the validated model allows for quantifying the improvements that may be obtained, in order to choose the most suitable solution. In this work, based on the available detailed building drawings, constructive details, building operational data and the data sets obtained on a minute basis (for a whole year) from a dedicated energy monitoring system, the calibration of an in-use office building energy model has been carried out. It has been possible to construct a detailed white box model based on Design Builder software. Then, comparing the model output for indoor air temperature, lighting consumption and heating consumption against the monitored data, some of the building envelope parameters and inner building inertia of the model were fine tuned to obtain fits fulfilling the ASHRAE criteria. Problems found during this fitting process and how they are solved are explained in detail. The model calibration is firstly performed on an hourly basis for a typical winter and summer week; then, the whole year results of the simulation are compared against the monitored data. The results show a good agreement for indoor temperature, lighting and heating consumption compared with the ASHRAE criteria for the mean bias error (MBE).Item Energy efficiency compared studies at Master plan stage for a new urban development in Madrid(University College Dublin, 2008) Arellano, Jesús; Irastorza, Luis; Rodríguez, Francisco; Romero, Ander; LABORATORIO DE TRANSFORMACIÓN URBANA; EDIFICACIÓN DE ENERGÍA POSITIVAIn order to achieve optimum results, energy efficiency of buildings should be first addressed in the pre-design phase. This paper describes the studies carried out in order to improve the energy efficiency of the buildings planned to be built in a large residential-commercial urban development in the north of Madrid. The first analyses are addressed at Master plan design stage, confronting the issue of energy efficient building form. Following selection of four residential and office plots, several mass options, derived from the tight planning regulations for the area, are modelled and simulated in order to compare the results in terms of heating and cooling demand, taking into account each building's surroundings. Once the most efficient mass options are chosen, further studies, centred in envelope materials and building refrigeration and heating systems will be carried out, so the results obtained in all these areas can be used as criteria and specification guides from the early stages of individual building design projects.