Research Papers - Department of Mechanical Engineering
Permanent URI for this collectionhttps://rda.sliit.lk/handle/123456789/604
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Publication Embargo The Potential Role of Carbon Tax in Achieving the Paris Agreement Targets for a Developing Country: A Case Study of Sri Lanka(IEEE, 2020-10-20) Fernando, G. L; Liyanage, M. HThis study assess the effect of carbon taxes on energy and emissions of the Sri Lankan energy sector during 2015-2050. Along with a Business As Usual (BAU) scenario, three alternative carbon price trajectories were considered. These scenarios have been proposed based on fifth Shared Socioeconomic Pathway (SSP5) to achieve the 2°C Paris target for Asia. The Carbon Price trajectories proposed by AIM/CGA, REMIND-MAgPIE and GCAM were considered. The energy-economic-environmental system was modelled using the AIM/Enduse model. It considered both energy supply and demand sectors. The results show that in the BAU scenario the GHG emissions are expected to increase from 19.8MtCO 2e in 2015to 106.2MtCO 2e in 2050. Out of three carbon tax scenarios the prices proposed by AIM/CGA has been the most efficient for reduction of GHG emissions as it could reduce final energy consumption by 26% and GHG emissions by 24% in 2050 as compared to BAU scenario.Publication Embargo Economic Viability of Solar PV for Domestic Applications in a Middle-Income Country: A case Study of Sri Lanka(IEEE, 2020-10-20) Wijesinghe, J. K; Najim, M. Y. M; Fernando, G. L; Liyanage, M. HThis study focuses on the economics of using solar Photovoltaics for residential in a middle-income country like Sri Lanka. It considers solar irradiance in the Colombo district to estimate the power generation potential by a selected 2.16kWp solar PV system throughout the year. It used solar irradiance data by NASA Surface Meteorology and Solar Energy (SSE), satellite solar insolation values for Sri Lanka and used the Liu and Jordan (LJ) method. Furthermore, it considered the economics of four different scenarios as model houses depending on appliance usage with net accounting. It was seen that without net accounting the Levelized cost of electricity could be as high as US0.69/kWh.However,withmechanismslikenetaccounting,itcouldbereducedtoUS 0.12 /kWh with full owners' contribution. Under the net accounting scheme houses that consume above 300 kWh/month will have the lowest payback period of 2 years and 9 months.