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Local heat transfer coefficients during refrigerant R-134a evaporation in a vertical plate heat exchanger
(18th International Congress of Chemical and Process Engineering, CHISA 2008, 2008)
The evaporation heat transfer coefficient of refrigerant R-134a in a vertical plate heat exchanger was investigated. The area of the plate was divided into several segments along the vertical axis. For each of the segments, ...
Use of multivariate analysis in radioecological and environmental radoactivity studies - advantages and limitations
(Østerås : Norwegian Radiation Protection Authority, 2008)
Some of the most commonly occuring problems in radioecological and environmental
radioactivitiy studies when applying traditional statistical models are multivariate and
multiscale structures of data. Spatial data analysis ...
Evaluation of damage of steam pipeline steel using local approach to fracture
(ASME 2008 Pressure Vessels and Piping Conference, PVP2008, 2008)
In the paper, the level of damage of steam pipeline steel after about 100,000 hours at 540 degrees C (1004 degrees F) under pressure of 42 bars (609 PSI) is analyzed. Material degradation is estimated using a combined ...
Performances of continuous dryer with inert medium fluidized bed / Performanse kontinualne sušnice sa fluidizovanim slojem inertnih čestica
(Association of Chemical Engineers of Serbia, 2008)
A fluid bed dryer with inert particles represents a very attractive alternative to other drying technologies according to the main efficiency criteria, i.e. specific water evaporation rate, specific heat consumption and ...
Governing factors for motor oil removal from water with different sorption materials
(Elsevier B.V., 2008)
This paper has been focused on the sorbent efficiency for motor oil removal from water. Two types of sorbents were investigated: organic and inorganic. Natural wool fibers (NWFs) and recycled-wool-based nonwoven material ...
Štetne supstance i njihovo uklanjanje iz mase papira i voda kružnog toka / Harmful substances and their removal from paper pulp and and circular water stream
(Association of Chemical Engineers of Serbia, 2008)
U okviru ovoga rada dat je sistematski pregled uzroka intenzivnog povećanja sadržaja
štetnih supstanci u masi papira i vodama kružnog toka u poslednjih dvadesetak godina i
njihov negativan uticaj na proizvodnost papir ...
Crystal structure of picotpaulite, TlFe2S3, from Allchar, FYR Macedonia
(Slovenian Chemical Society, 2008)
The crystal structure of the mineral picotpaulite, TlFe2S 3, was solved and refined using single-crystal X-ray diffraction data collected at room temperature. The symmetry is orthorhombic, space group Cmcm, with unit-cell ...
Bioethanol Production from Corn Meal Hydrolyzates by Immobilized Saccharomyces cerevisiae var. ellipsoideus
(2008 Joint Central European Congress of the 4th Central European Congress on Food, CEFood 2008 and 6th Croatian Congress of Food Technologists, Biotechnologists and Nutritionists, 2008)
Bioethanol can be produced by fermentation of sugars from waste agricultural materials. In this process immobilized yeast offer advantage over free cell suspension with regard to ethanol productivity, fermentation rate and ...
Crosslinked polyurethanes based on hyperbranched polymers / Umreženi poliuretani na bazi hiperrazgranatih polimera
(Association of Chemical Engineers of Serbia, 2008)
In this paper, two samples of polyurethane (PU) crosslinked with hydroxy -functonal hyperbranched aliphatic polyester of the second pseudo generation were investigated. For the synthesis of these crosslinked PUs two different ...
Preparation of biodegradable porous poly(butylene succinate) microspheres / Dobijanje poroznih biodegradabilnih mikrosfera poli(butilen sukcinata)
(Association of Chemical Engineers of Serbia, 2008)
The aim of this study was to determine the optimal conditions for the fabrication of porous microspheres based on poly(butylene succinate), PBS. The biodegradable non-porous PBS microspheres were prepared by the oil-in-water ...