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Browsing University of Moratuwa Research – Reports by Author "Attalage, RA"

Browsing University of Moratuwa Research – Reports by Author "Attalage, RA"

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  • Building envelope performance index for commercial bl ilding energy conservation 
    Jayasuriya, JPW; Attalage, RA [Article-Full-text]
    The role of thermo-physical and geometrical characteristics of a building envelope that plays in the air-conditioning load of the commercial sector is highlighted. A standard methodology of quantifying a performance index ...
  • Energy conservation in commercial buildings by optimizing the start stop sequence of the air-conditioning plant 
    Attalage, RA; Jayasinghe, MTR; Fernando, TMD [SRC-Report]
    Sri Lanka has a warm humid climatic condition in low altitudes since it is located close to the equator. In many commercial buildings located in low altitudes, airconditioning is used as a popular option for providing ...
  • Energy conservation in tea industry 
    Attalage, RA; Sugathapala, AGT
    Tea has become the most popular refreshing drink all over the world because of its natural taste, since the ancient times. The quality and the taste are unmatched with any other drink in the universe. Production processes ...
  • Energy conservation in tea industry 
    Attalage, RA; Sugathapala, AGT [SRC-Report]
    Tea has become the most popular refreshing drink all over the world because of its natural taste, since the ancient times. The quality and the taste are unmatched with any other drink in the universe. Production processes ...
  • Enhancement of output of solar panels by means of reflectors 
    Watugala, GK; Attalage, RA [SRC-Report]
    The energy supply from the sun is truly enormous: on average, the earth’s surface receives about 1.2*1017W of solar power. This means that less than one hour enough energy is supplied to the earth to satisfy the entire ...
  • Minimisation of energy demand in buildings 
    Jayasinghe, MTR; Attalage, RA [Article-Full-text]
    The neutral temperatures for different locations in Sri Lanka have been established using actual climatic data. Based on these neutral temperatures, standard comfort zone for each of these locations have been identified ...
  • Minimisation of energy demand in buildings 
    Jayasinghe, MTR; Attalage, RA [Article-Full-text]
    The neutral temperatures for different locations in Sri Lanka have been established using actual climatic data. Based on these neutral temperatures, standard comfort zone for each of these locations have been identified ...
  • Passive concepts for improvement of thermal an visual comfort in houses in Sri Lanka 
    Jayawardane, AI; Jayasinghe, MTR; Attalage, RA [Article-Full-text]
    One of the primary requirements of houses constructed in hot humid climatic conditions such as those prevailing in Sri Lanka is that those should be thermally comfortable for the occupants throughout the day and around ...
  • Passive techniques for energy efficiency of buildings in Sri Lanka : research papers 
    Jayawardane, AI; Jayasinghe, MTR; Attalage, RA [SRC-Report]
    The following research papers were published from the above-mentioned titled, 1). Passive concepts for improvement of thermal and visual comfort in house in Sri Lanka, 2). Minimisation of total ownership cost of residential ...
  • Performance analysis of table and pedestal fans 
    Attalage, RA; Sugathapala, AGT [SRC-Report]
    Performances of pedestal and table fans were analysed through experimental measurements of the induced flow field (velocity distribution) and the power consumption by three different fan types (makes). A test rig was ...
  • Quantification of the thermal performance of free-running three-storey houses 
    Jayawardena, AI; Jayasinghe, MTR; Attalage, RA [Article-Full-text]
    This paper explores the possible means to adopt environmentally-friendly passive techniques to promote thermal comfort inside houses with the view of minimizing the use of energy-intensive active means such as fans. ...
  • Retrofitting of a R-12 based domestic refrigerator to run on R-134a 
    Attalage, RA; Perera, KKCK [SRC-Report]
    With the discovery of R134a, which has a negligible Ozone depletion potential, ODP (R11 is listed as 1.0 on the scale) and at least hundred orders of magnitude less Global warming potential (GWP) compared to CFCs, resulted ...
  • Socioeconomic and environmental impact of rural household energy supplies 
    Wijayatunga, PDC; Attalage, RA [SRC-Report]
    Majority of the households in Sri Lanka, as in the case of many developing countries, is concentrated in the rural areas of the country. But unfortunately, very little attention has been paid until recently to analyse ...
  • Study of thrust areas and strategy for University-industry linkage strengthening 
    Attalage, RA; Galappaththi, UIK [SRC-Report]
    The link between the university and the industry is probably the most effective tool that is of mutual benefit to both parties for achieving a common goal. The university from one side can play a vital role in applying ...
  • Thermal performance of free-running three-storey houses: an assessment through computer simulations 
    Jayasinghe, MTR; Attalage, RA; Jayawardena, AI [Article-Full-text]
    Sri Lanka is presently facing a serious energy crisis due to continuous increase in energy demand annually. One of the solutions for this is energy conservation for which houses are a good candidate. The need for using ...