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Recent submissions

ERU - 2009: Recent submissions

Now showing items 61-75 of 75

Synthesizing and Characterization of Alkyd Resins Using a Blend of Nahar Seed Oil and Karawila seed oil

Milani, MDY; Premachandra, JK; Amarasinghe, ADUS; Prashantha, MAB [Conference-Extended-Abstract]

Blend of Nahar (Mesua ferrea) seed oil and Karawila (Momordica charantia) seed oil (50:50 w/w %) as a potential source of fatty oil for manufacturing air drying long oil alkyd resins was investigated. The film properties ...
Comparative performance of bio filter packing materials for waste gas treatment

Wijayawardhana, AJ; Wijeyekoon, SLJ; Walpalage, S; Amarasinghe, ADUS [Conference-Extended-Abstract]

A study was conducted to evaluate the removal efficiency of NH3 and H2S emitted from an industrial waste gas source by biofiltration. Four types of packing material were used and NH3 and H2S in the contaminated air stream, ...
Synthesizing and characterization of alkyd resins Using a blend of soya oil {glycine max) and karawila seed Oil (momordica charantia) cultivated in Sri L

De Silva, SHUI; Premachandra, BAJK; Amarasinghe, ADUS; Prashantha, MAB [Conference-Extended-Abstract]

The effectiveness of the blending of karawila seed oil with soya oil on the drying characteristic of the alkyd resins was studied. Monoglyceride process was used to synthesize the alkyd resins. The film properties of the ...
Study the effect of temperature on extraction of chlorophyll from alternanthera sessilis cultivated in Sri Lanka

Jinasena, MAM; Amarasinghe, ADUS; Amarasinghe, BMWPK; Prashantha, MAB [Conference-Extended-Abstract]

The effect of temperature on extraction of chlorophyll from Alternanthera sessilis cultivated in Sri Lanka was studied using buffered 80% aqueous acetone as the solvent. The yield increased with the increase of temperature ...
Comparison of mechanical oil extraction vs. solvent extraction for jatropah curcas

Gunawardena, SHP; Jayasinghe, P; Hewa Walpita, D [Conference-Extended-Abstract]

Jatropha curcas oil was found to be a good source for biodiesel the production. The effect of particle size and the temperature of Jatropha seeds on the extractability of oil were investigated in laboratory scale by ...
Development of adhesives from rice and cassava starch

Bhagya, MHS; Gunawardena, S; Ismail, M [Conference-Extended-Abstract]

A comparative study of the use of rice and cassava starches for the production of adhesives was investigated. Viscosity and tensile measurements were examined with varying alkali concentrations and the effect of standing ...
Mathematical modeling of extraction of chlorophyll from alternanthera sessilis cultivated in Sri Lanka

Jinasena, MAM; Dissanayake, DMMB; Amarasinghe, ADUS; Amarasinghe, BMWPK; Prashantha, MAB [Conference-Extended-Abstract]

Mass transfer modeling was used to study the extraction efficiency and the effect of temperature on solvent extraction of chlorophyll from. Alternanthera sessilis, which is a leafy vegetable cultivated in tropics and sub ...
Possibility of using waste vegetable oil as a biodiesel raw-material

Hewa Walpita, DRS; Sampath, PRAU; Samarakoon, SPAGL; Ismail, FM; Gunawardena, SHP [Conference-Extended-Abstract]

WVO can be successfully and economically converted into biodiesel using a simple conversion process. The biodiesel produced using WVO shows physical properties which are compatible to those of standard biodiesel, and shows ...
Programmable fault path indicator for power distribution networks

De Silva, N; Kumarawadu, S; Selvarasa, A; Ratnayaka, SRMCD; Ranawaka, DMD; Kankanamge, TN [Conference-Extended-Abstract]

The increase in electricity demand and expansion of transmission and distribution system is leading to a more complex electrical network. As a result of complex networks, fault identification takes a longer time posing a ...
High pulse thyristor converter for HVDC applications

Perera, LB; Karunadasa, JP; Perera, BMD; Perera, KPSD; De Silva, PAGS; Jayarathne, MC [Conference-Extended-Abstract]

Designing, simulation and implementation of a scaled down model of a High Pulse Thyristor ac / dc Current Source Converter (CSC) for HVDC applications based on a new concept of Multi Level Current reinjection are discussed. ...
High pulse voltage source inverter for standalone renewable energy systems

Perera, LB; Karunadasa, JP; Chathuranga, KAP; Premathilake, DMKM; Rathnayake, INW; Senarathne, KN [Conference-Extended-Abstract]

Designing, simulation and implementation of a 3kVA, 36 pulse voltage source inverter for standalone renewable energy systems based on the new concept of multi level voltage reinjection is discussed. Introduction to the ...
Dynamics of four legged multipurpose rope climbing robot

Hewapathirana, ND; Uddawatta, L; Nanayakkara, T [Conference-Extended-Abstract]

Legged vehicles can walk on rough and uneven surfaces with a high degree of softness. This is one of the key reasons why legged machines have received more attention by the scientific community. The second fact is minimizing ...
Design and development of dye-sensitized organic semi conductor based photo electric system utilizing nanotechnology for low cost and efficient conversion of solar energy to electricity

Attanayake, CIF; Premachandra, BAJK; De Alwis, AAP; Senadeera, GKR [Conference-Extended-Abstract]

Preliminary investigations on the identification of natural pigments in the dye-sensitization of Nano crystalline n-type TiO2 were carried out. Fresh extracts of Mangoostein, Rabutan, Mango, Tomato, Carrot, King coconut, ...
Comparison of heavy metal adsorption using bacterial cellulose and modified bacterial cellulose

Gamage, NS; Walliwala, SG; Dharmasena, TR; Ismail, FM; De Alwis, AAP [Conference-Extended-Abstract]

Adsorbent materials derived from various sources have been used to treat wastewater that is contaminated with heavy metals. Bacterial Cellulose (BC) is one such material that has the potential to use as an adsorbent. BC ...
Power electronic starter for wound rotor induction motors

Soysa, WHID; Karunadasa, JP [Conference-Extended-Abstract]

This paper presents a rotor based power electronic starter for a wound rotor three phase induction motor. The study was done for a 1kW motor and the successfulness of proposed starter was evaluated using Matlab-Simulink ...

Now showing items 61-75 of 75

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