Water, wind, light and mechanical effects do notonly play a role in complex engineered constructionsystems, but can also be basis for thedevelopment of construction products itself.Two examples will show how phenomenumsfound in nature have been translated into technicalapplications for coatings.Recent decades have been a very interestingand challenging period for the constructionmarket.
Benchmarking is a management approach toidentify best practices, find reasons of successand develop recommendations and implementationfor improvement. Method of building energyperformance benchmarking is discussed inthis paper. A database of office buildings inSingapore was presented and used as examplefor the data analysis and benchmarking methoddiscussion. Concepts of controllable and uncontrollablefactors of buildings energy performanceare introduced using mathematic model.Method of normalization and determination ofperformance indicators are discussed.
The present paper presents a method to characterizethe typical building from a group by applyingprincipal components analysis (PCA).The method has been developed on a sampleof secondary education school buildings inGreece. The purpose is to define the typicalbuilding in order to propose generalized improvementsfor energy efficiency of the buildingstock concerned. Therefore seven variables fromquestionnaires have been analyzed: heated surface,age of the building, insulation of the building,number of classrooms, number of students,schools operating hours and age of the heatingsystem.
Indoor Air Quality (IAQ) and emissions frombuilding materials have been over the last decadesa major challenge for scientists, industryand consumers. In response to the need for improvedconsumer protection different kinds oflabelling systems for material emissions havebeen developed in many European countries andby industrial organisations. The main purpose isto protect consumers from exposure to chemicalpollutants and resulting adverse health effects(i.e., carcinogenic, teratogenic, irritant) or annoyanceby bad odours, which could be causedby chemical emissions from materials.
One of the greatest threats for buildings is the possibility of changes in the building materials’ properties because of the penetration and residence of moisture it them. In the case of insulating materials such damages may initially have an energy cost,
The primary aim of the EP label project is to facilitate the implementation of article 7.3 of the European Energy Performance of Buildings Directive – the display of energy certificates by public buildings – by developing a harmonized methodology for deli
This paper introduces a new approach for theprediction of hourly energy consumption inbuildings. The proposed method uses nonlineartimeseries analysis techniques for the reconstructionof energy consumption timeseries andthe estimation of the dynamic invariants, and artificialneural networks as a nonlinear modelingtool.Among the several neural network modelingfactors that affect time-series prediction, themost important are the window-size and thesampling lags for the data.
The fast and uncontrolled emergence of a will topromote sustainable development in the field ofbuilding construction generates new requirementsfor urban development. Besides technicalsolutions, project managers or urban plannersmust take into consideration the overall impactof his project on the local and global environmentas well as social trends, economic development,health and safety for users.
The present paper presents the results of the energyand environmental evaluation of ten schoolbuildings in the Greater Athens Area. The researchincluded measurements of the indoor airquality, evaluation of the situation of the buildingenvelope, recording of energy and ventilationsystems and generally all the systems thatinfluence the energy output of the school buildings.Experimental investigations were performedin ten different schools and the concentrationlevels of CO2, CO and VOCs weremeasured.
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