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Controls of solar power systems for grid connected and islanded mode operations

Nagaratnam, R.; Thiriambahasharma, K.; Ratnakumar, R.; Manchukan, Y.; Kanagasundram, A.; Arulampalam, A. (University of Jaffna, 2022)

Continuous supply of electricity, when there are supply constrains is a major challenge. Environmental concerns and non availability of fossil fuels increases the demand for the use of renewable energy sources such ...

Vehicle Parking Mobile Network

Muralitharan, R. (University of Jaffna, 2022)

Universal Software Defined Radio Peripheral (USRP) and Banana pi board can be used to configure a vehicle parking mobile network. The base station is created in the center of the parking area. The base station can ...

Web crippling behaviour of LiteSteel Beams with edge-stiffened web openings under End-Two-Flange load case

Elilarasi, K.; Janarthanan, B.; Athapaththu, D.; Poologanathan, K.; Perampalam, G. (University of Jaffna, 2022)

Cold-Formed Steel (CFS) members are widely used with openings in the floor system for various service purposes such as power, telecommunication, and internet cables. Also, web crippling is becoming vulnerable owing ...

Feasibility of Cement Mortar System with Industrial Metal Fibre Waste

Perera, K.D.Y.G.; Ahamed, Y.L.F.; Somarathna, H.M.C.C. (University of Jaffna, 2022)

The traditional cement mortar has limited characteristics. Because of the lack of expected results, the engineering scope has focused on alternative materials instead of using the traditional constituents. As a ...

Evaluation of Safety Performance in Provincial Road Network

Tharmarajah, S.; Pasindu, H.R. (University of Jaffna, 2022)

Provincial roads in Sri Lanka considered as class C and D which serves connection between urban and rural to ensure the social and economic necessities. Even though it is a developing country, the majority of these ...

Holistic Dynamics of Urban Pond Infrastructure for Flood Risk Mitigation – A Case Study on Jaffna Municipal Council Area

Thawsika, S.; Rajapakse, R. L. H. (University of Jaffna, 2022)

The frequency of flood occurrence in the Jaffna Peninsula mainly depends on rainfall intensity, conditions of natural drainage, associated terrain, and hydraulic structures. Jaffna Municipal area has also been ...

Effect of Tree Plantation Location and Crown Shape on Cross-Ventilation of a Generic Building – A CFD Study

Buddika, J.W.G.; Weerasuriya, A.U.; Lewangamage, C. S.; Xuelin, Z. (University of Jaffna, 2022)

Natural ventilation creates comfortable and healthy indoor environments without consuming energy. However, maintaining adequate natural ventilation is arduous because several factors control its performance, ...

Effectiveness of chlorine as a pre-oxidation mechanism in water treatment for turbidity removal in groundwater as a water efficiency strategy

Sutharsan, M.E.; Meegahakumbura, S.P.S. (University of Jaffna, 2022)

Groundwater supply has been one of the pillars of socio and economic development, especially in the dry regions of Sri Lanka, where reliable water sources are very scarce. With the rising water demand, water ...

Nutrient and Energy Recovery from anaerobic digester (AD) centrate using an algal system

Selvaratnam, T.; Kharel, H.L.; Tan, M. (University of Jaffna, 2022)

Anaerobic digestion (AD) systems yield methane from wet sludge/biomass leaving carbon-depleted wastewater known as centrate in municipal wastewater treatment plants. Centrate is an ideal feedstock for nutrient/energy ...

Storm water: pollutant characterisation and treatment practices

Ekanayake, D.; Loganathan, P.; Kandasamy, J.; Vigneswaran, S. (University of Jaffna, 2022)

Stormwater quantity and quality can vary widely depending on the landscape of the area and amount and intensity of precipitation. Stormwater is a good source of water which can reduce the demand on potable water ...

Feasibility of Cement Mortar System with Textile Waste

Gunathilaka, D.P.D.U.; Jayathilaka, C.S.; Somarathna, H.M.C.C. (University of Jaffna, 2022)

Fabric wastes are commonly burned or recycled into practical goods, they do not stay usable long enough before they return to being wastes once again. Massive textile waste generation due to the high demand for ...

Investigation of Measures for Sustainable Development using Sustainable Construction

Manchanayake, R.K.N.A.H.; Malkanthi, S.N.; Dassanayake, D. (University of Jaffna, 2022)

Sustainable construction practices throughout the life cycle of a project refer to minimize the adverse effect on social, environmental and economic development in a country. The present study focused on how ...

Experimental Investigation on Greener Self-Compacting Concrete With Inclusion of Rice Husk Ash

Hareindirasarma, S.; Athapaththu, D.; Sivasankaranarayana, S.; Janarthanan, B. (University of Jaffna, 2022)

Self-compacting concrete (SCC) has become more popular than conventional concrete owing to its advantages, such as a high level of consistency, finishability, and flow rate with the least possible water-cement ...

Flexural Behaviour of Waste-based Natural Fibre Reinforced Composite from Palmyra Fibre and Waste Polythene

Wijesena, P.C.M.; Karunarathna, D. M. S. M.; Somarathna, H.M.C.C. (University of Jaffna, 2022)

In recent years researchers are focusing on manufacturing new products by using wastes as raw materials. Among them, the products which are developed using natural fibre wastes have gained substantial attention ...

Study of Aerodynamic Effect on Skybridges Connecting Tall Buildings: A Computational Fluid Dynamic Approach

Kalpani, K.A.U.; Kulathunga, D.D.T.K.; Kiriparan, B.; Kathriarachchi, M.A. (University of Jaffna, 2022)

Many cities have developed with the rapid growth of the population. Due to the shortage of land, tall buildings have to be implicit closeness. In the recent past due to various advantages, skybridges are adopted ...

Feasibility of Waste Calicut Tiles as Aggregates in Structural Concrete

Jayasekara, D.A.B.P.M.; Jayathilaka, S.T.N.; Somarathna, H.M.C.C. (University of Jaffna, 2022)

This study is intended to investigate the feasibility of using Calicut Tile Aggregates (CTA) sourced from industrial waste and construction and demolition waste as a replacement for Natural Aggregates (NA) use in ...

Effect of pH for Colloid Stability in Chemically Heterogeneous Soils

Gunawardhana, T.; Balakrishnan, B.; Deepagoda (University of Jaffna, 2022)

Until recently, natural soils were believed to constitute two mobile phases: soil moisture and soil air. However, research revealed later the presence of another mobile phase, which is now referred as the colloidal ...

Shear behavior and Permeability of rail track ballast fouled by the infiltration of finer particles

Navaratnarajah, S. K.; Mayuranga, H. G. S.; Venuja, S. (University of Jaffna, 2022)

Ballasted track is the traditional and widely used railway track system in many countries due to its numerous benefits. The ballast layer consists of uniformly distributed coarse granular material that acts as the ...

Improvement of Engineering Characteristics of Poor Quality Soil by mixing with Bottom Ash

Wipula, W.K.; Priyankara, N.H. (University of Jaffna, 2022)

Huge quantity of bottom ash is generated as a by-product of burning of coal when generating electricity at Norochcholai power plant. However, only very small quantity of bottom ash is used by the industry to ...

Comparison of Classical and Recent Predictive Models for Soil-Gas Diffusivity

Lakshani, T.; Deepagoda, C. (University of Jaffna, 2022)

Accurate prediction of soil- gas diffusivity (Dp/Do: where Dp and Do are gas diffusion coefficients in soil and free air, respectively) and its variation with air-filled porosity (ε) is important for understanding ...

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