Browsing by Author "Tulirinya, John"

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    Modelling the Influence of Evaporation on Residual Chlorine in Water Storage Tanks Using CFD
    (East African Nature and Science Organization, 2021-07-08) Tulirinya, John; Awichi, Richard O.; Kamugisha, Fulgensia M.; Nagulama, Moses
    Water storage tanks are usually utilized in water distribution systems (WDS) to meet the water demand fluctuations. Chlorine is the most common disinfectant used to disinfect water supplies. However, variations in the rate of chlorine decay in these storage tanks are one of the greatest limiting factors in ensuring adequate water treatment process and giving guarantee to its efficiency. These variations could be due to some inadequately tested mechanisms of chlorine reactions in bulk fluid, chlorine reactions with storage tank walls, and natural evaporation. This study presents Computational Fluid Dynamics (CFD) modelling approach to assess the influence of evaporation on residual chlorine in water storage tanks. Findings indicate that an increase in the evaporation rate accelerates the rate at which residual chlorine is lost. It is concluded that temperature is the main factor influencing evaporation, which in turn causes the disappearance of residual chlorine within the water storage tanks.
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    Project Implementation, Risk Management Practices and Project Success
    (East African Journal of Business and Economics, 2021) Watema, Joash; Tulirinya, John
    The study aimed to establish the relationship between project implementation, risk management practices and project success for projects implemented by NGOs in Iganga Municipality. The study used a quantitative, correlational and cross-sectional survey design. The sample consisted of 117 respondents who included project managers, their assistants, and accountants of 45 projects implemented by NGOs in Iganga Municipality. Data was collected using a self-administered questionnaire and analysed using statistical packages for social scientists (SPSS). This study discusses project implementation and risk management practices as the issues involved in project success and or failure. The study concluded that project implementation and risk management practices were significant in improving project success. This study recommended that NGOs in Iganga Municipality need to put much emphasis on project implementation and risk management practices as a way of improving project success as their correlation is significant.