THE ANALYSIS OF PROJECT DELAY FACTORS USING THE DOUBLE-ROOF HOUSE OF QUALITY
Published In: 5TH INTERNATIONAL CONFERENCE ON ADVANCES IN CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING
Author(s): ABDULWAHAB ABU KWAIK , ENDA FALLON , PAT DONNELLAN
Abstract: One of the biggest engineering concerns in the Middle East is the major delays in infrastructural projects which impact on both their quality and cost. A significant number of projects do not finish on time, are subject to cost overruns and are not completed to the specified quality. The Kingdom of Saudi Arabia (KSA) claims losses of the order of $ 40 Billion per annum as a result of these issues. Information on the factors contributing to project delays was studied. A literature review which determined the main project delay factors was first carried out. An online survey incorporating 66 of these was then developed with the purpose of identifying the most critical factors contributing to project delays. The survey was administered to over 200 specialists in the area of project engineering. This cohort included; Consultants, Business Owners, Project Directors, Project Engineers, Safety and Quality Managers and Contracting Managers. The resulting delay factors were ranked in order of p
- Publication Date: 28-May-2020
- DOI: 10.15224/978-1-63248-122-1-12
- Views: 0
- Downloads: 0
SIMULATION AND FLOWSHEETING OF AGRO-INDUSTRIAL RESIDUES TORREFACTION: THE CASE OF TOMATO PEELS WASTE
Published In: 5TH INTERNATIONAL CONFERENCE ON ADVANCES IN CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING
Author(s): BARLETTA DIEGO , BRACHI PAOLA , GUERRIERO ANTONIO , MICCIO MICHELE
Abstract: Torrefaction is a thermal pretreatment for biomass feedstocks of various origin, which is usually carried out in an inert atmosphere, at ambient pressure and in a temperature range of 200-300 °C. It has the ability to reduce the main logistic and application limitations of biomass, arising from its heterogeneity, low bulk density, low energy density, hygroscopic behavior and fibrous nature. During torrefaction a combustible gas (‘torgas’) consisting of different organic compounds is also produced in addition to the torrefied solid product. In a properly designed and operated torrefaction system the torgas may be combusted to generate heat for the drying and torrefaction steps, thus increasing the overall process efficiency. This paper focuses on the valorization of biomass made available from low-value, wet agro-industrial residues. The aim of this work is to provide the conceptual design and technical analysis of a torrefaction process for recovery and upgrade of wet tomato peels, whi
- Publication Date: 28-May-2020
- DOI: 10.15224/978-1-63248-122-1-13
- Views: 0
- Downloads: 0