Browsing by Author "Hettiwatte, S.N."
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- ItemCity Tour Bus Locator and Bus Booking Mobile Application(NSBM Green University, 2018-08-25) Chandrasiri, S.; Hettiwatte, S.N.The public bus transportation system has the direct impact on economic development of the country. Scheduling, tracking and monitoring of the public bus transportation is one of the major issues for any public transportation sector. Currently, there are many vehicles tracking systems available using Global Positioning Systems (GPS) technology. At present, bus passengers are unable to gather enough information which would lead up to a stress-free bus ride. Under current conditions a passenger has to wait in the bus stand without having any prior idea about the buses.‘CityTour’ application assists passengers and the conductor to use bus service in more stress-free, well-organized and a suggestive manner. “CityTour”, is the cross-platform application implemented with the sole purpose of addressing these problems a passenger has. The application will predict the next Bus’s arrival time, seat reservation and a rating which will give an indication regarding the quality of the service offered. Bus conductor has a say in whether a passenger gets a seat or not. ‘CityTour’ application enables the “real-time” passenger bus communication that would lead to a better collaboration and make their day-to-day work easier for both the parties.
- ItemPoster Presentation: Challenges in Integrating Variable Renewable Energy Sources into Electricity Grids: A Review(NSBM Green University, 2018-08-25) Hettiwatte, S.N.Variable renewable energy sources like sun, wind and tides produce intermittent power. Integrating power generators producing intermittent power outputs to the electricity grid is a challenging task since the power requirements of the loads connected to the grid do not follow the intermittency of the variable renewable energy sources. The technical challenges arise from the fact that there needs to be a balance between supply of power and demand, at all-time scales. In this research, variable renewable energy sources are reviewed, the problem of intermittent generation is analyzed and the solutions for intermittency are investigated, including geographical diversity, forecasting, generator flexibility, energy storage, curtailment, and load control. The final solution to intermittent generation will be a suitable mix of above methods.