Browsing by Author "Abeysekara, GPTK"

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    Development of low cost evaporative cooler unit to suit industrial environment
    (2009) Attalage, RA; Abeysekara, GPTK; Ketanwila, KHHG; Vithana, KAP
    The purpose of this paper is to demonstrate the adaptability of evaporative cooling technology to Sri Lankan environment. Desiccant cooling technology is initiated to control the relative humidity level of the environment. A generic model of the evaporative cooler is constructed using direct evaporative cooling method and solid desiccant dehumidification method. The model was installed in the testing environment. The results show that the evaporative cooler is provided the sufficient level of thermal comfort to the people changing relative humidity slightly.
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    Identification of factors affecting the success of expressway construction projects in Sri Lanka
    (2022-12-01) Abeysekara, GPTK; Dasanayaka, SWSB
    Multibillion-dollar investments have been made in the expressway network construction in Sri Lanka in the recent past with the goals of developing social and living standards, enhancing the capacity of the construction industry, and ascertaining the economic development of the country. The main objectives of this research are to conduct a scientific study of the expressway construction projects to identify the success factors and the influence of the technology transfer process, as well as to develop evaluation criteria for assessing the success of the projects. The research follows a descriptive approach, and perceptional data from managerial-level employees of the completed projects were collected using a structured questionnaire. Data were analyzed by the SPSS package using linear correlation and regression analysis techniques. Based on the findings, ten critical success factors relevant to expressway projects are identified, and evaluation criteria consisting of seven indicators are developed. The study reveals the moderating effect of the technology transfer process on the technological success factors that contribute to project success. The major limitation of this study is the insufficiency of completed projects located in similar geographic conditions. Further research in other South Asian countries is recommended to generalize the findings of this study.