At Stora Enso Fine Paper Nymölla Mill there is a wish to reduce its dependency on external produced electric power. One suggestion that has been made is to install a hot air gas turbine. The purpose of this thesis is to see if it is thermodynamic and economical to go through with the project with the hot air gas turbine. It is of great importance that the boiler-process remains as unchanged as ...

Amorphous materials (a-LAGP(x = 0.5)) with the composition of Li1.5Al0.5Ge1.5(PO4)3 were prepared by mechanochemical synthesis method. Crystalline compounds LiGe2(PO4)3-based NASICON-type structure formed heat treatment a-LAGP(x 0.5) at 400–700 °C in air. Solid electrolytes pelletized-type and MgO-modified 700 exhibited lithium ion conductivities on order 10−5–10−4 S cm−1 room temperature. The ...

1. introduction heavy snow hazards, although have less frequency in comparison with extreme weather events such as freezing, but are major hazards in midlatitudes (smith, 2009, 196). heavy snow damages manmade structures, crops, casualties, even between urban and rural ways of blocking.(briant. 69, 2005. ohara et al, 2009, 1611). various definitions have been offered for heavy snow, those are c...

Urbanisation leads to increased thermal stress in hot-humid climates due to increased surface and air temperatures and reduced wind speed. We examined the influence of urban morphology and sea breeze on the microclimate of Colombo, Sri Lanka. Air and surface temperatures, humidity and wind speed were measured at 1 rural and 5 urban sites during the warmest season. The urban sites differed in th...

The objective of this study is to determine the relationship between lightning observed by Tropical Rainfall Measuring Mission (TRMM) Lightning Imaging Sensor (LIS) and seven large-scale environmental variables obtained from 3-hourly Modern-Era Retrospective analysis for Research Application version 2 (MERRA-2) reanalysis in tropics subtropics. used are: convective available potential energy (C...

The shape of the air flow in the interior is heavily influenced by the air distribution system and the way air enters and exits. By numerically simulating flow by computational fluid dynamics, one can determine the flow pattern and temperature distribution and, with the help of the results, provide an optimal design of the air conditioning system. In this study, a chamber was first constructed ...

mazafati date is a wet and semi-dried date fruit type with dark red to black color that has premier quality. because of its high moisture content, date fruits of this variety are very perishable at room temperature and therefore must be refrigerated during storage. in this study, effect of air temperature (50, 60, 70, 80 and 90 ˚c) and air flow rate (1, 1.5 and 2 m/s) in hot air drying of mazaf...

Vertical ozone profiles measured in the period 1996–2002 in the framework of the MOZAIC project (Measurement of Ozone and Water Vapor by Airbus in Service Aircraft) for flights connecting Central Europe to the Eastern Mediterranean basin (Heraklion, Rhodes, Antalya) were analysed in order to evaluate the high rural ozone levels recorded in the Mediterranean area during summertime. The 77 flight...

Hanstrum et al. (2002) show from proximity soundings that cool-season tornadoes in southern Australia occur in environments characterised by relatively weak, but still positive, buoyancy in the lower troposphere, and strong wind shear from the surface to 1 – 1.5 km. Threshold criteria based on these proximity soundings (hereafter termed ‘proximity thresholds’) showed that a surface to 700 hPa l...