Abstract: Accurate estimation of indoor air quality in enclosures is of major importance for achieving healthy indoor environment conditions. The CFD (Computational Fluid Dynamics) approach is currently one of the most used methodology in order to improve the indoor air quality in ventilated environments. As a result, the objective of this study is to evaluate the behavior of CFD simulations for the prediction of indoor air quality in a ventilated test room. The numerical model is based on convection – diffusion equations (to determine the mass fraction of the pollutant), added to the equations used to solve confined turbulent air flows. The computed values are compared with detailed experimental data from the literature, based on tracer gas technique to assess the diffusion of pollutants in a full scale test cell.

• Publication Date: 26-Oct-2014
• DOI: 10.15224/978-1-63248-030-9-06
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Abstract: The main objective of this research was to measure the level of awareness and application of Value Engineering (VE) in construction industry in Oman. Data obtained from 64 respondents representing the public and private construction sectors was analyzed. The findings indicated that VE is recognized in construction industry in Oman and there is a sign that some organizations are applying VE in their projects, but there is confusion in understanding its process and application with the cost saving tasks. 42 per cent of the respondents rated VE as limited to some special projects and 40 per cent stated that the application of VE is low. 89 per cent of the respondents assumed that implementation of VE in construction projects will benefit the construction industry and minimize time and cost overruns, improve values, and meet requirements. The main factors retarding the application of VE in construction projects were found to be lack of knowledge, guidelines and non-availability of dedicate

• Publication Date: 26-Oct-2014
• DOI: 10.15224/978-1-63248-030-9-07
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• Downloads: 0