In the present era, with the prevailing competition, the cost of production plays a vital role. As the price of petroleum oils, especially diesel and furnace oil are growing at a steeper rate than solid fuel price, finding a substitute for furnace oil is one of the alternative available. Furnace oil used in boilers can be totally substitute by biomass with an equivalent ratio of 3.5:1 kg/liter on the basis of calorific value. This may results in saving of more than 60% of operating cost and would have attractive payback period of 6-8 months. Sri Lanka has large agriculture base and very common of having Gliricidia as an under-grow. The other biomass fuels such as paddy husk, saw dust, firewood are also available in large quantities around the country. Objective of this article is to study the conversion of presently  running furnace oil fired boiler, which is located at Ambilipitiya paper factory,Sri Lanka to biomass fired external furnace boiler namely water-wall boiler, techno economical study of the project and commissioning. Further a case study, which was done previous to this study and running successfully, is described to show the viability of the conversion using the internal furnace method. This case study was done at a Textile factory namely Brandix Finishing, Siduwa, and Sri Lanka. The results will be reducing the operating cost of the boilers and reduction of green house gas emission.  Opportunities for rural people to get extra income by farming Gliricidia, extra income from saw dust, paddy husk, and firewood are indirect benefits of the project. This report gives details of technical, environmental and commercial aspects of this unique opportunity.      Supervised by: Dr.Primal Fernando, Senior Lecturer, University of Peradeniya

The project was influenced by several factors, the most significant being the water element, which is very important for Judaism and primarily symbolizes ritual purification. The concept divides the area in the axis of Nešverova Street, making an orthogonal block, further separated according to the functions, and public area under which a part of the underground parking is located. The block consists of the synagogue, museum, restaurant and administrative building of the Jewish community with a library. From the architectural standpoint, the project was significantly influenced by the stained glass window of the burned former synagogue, which was, in more modern spirit, imprinted into the museum’s facade. This window becomes a dominant element of the facade, because it pervades all three floors, so the rest of the building is not divided and for lighting of the exhibition areas skylights and artificial light are used. Significance of this concept is intensified by the fact that the visitor is dragged inside, right to the front of the synagogue, to which a ramp leads. There is an importance of the mentioned water element in the design of the synagogue. The whole concept is approached organically and was inspired by a drop of water falling down on the surface. The synagogue literally grows from a body of water which surrounds it and creates a crystalline element. The idea is amplified by the water wall which runs from the passageway all around the synagogue. Part of the administrative building and the restaurant are designed in more simple style, but the idea of arch is reflected in the moulding, which was designed intentionally with reference to the surrounding buildings. The rest of the site served as a small park and this function has been maintained. A significant element in this part of the site is Theresian gate, which remained from the 18th century fortification. The park was supplemented by an artificial bank, which covers the entrance to underground parking a