Search results for "Heat Transfer"

showing 2 items of 442 documents

Friction and Heat Transfer in Membrane Distillation Channels: An Experimental Study on Conventional and Novel Spacers

2022

The results of an experimental investigation on pressure drop and heat transfer in spacer-filled plane channels, which are representative of Membrane Distillation units, are presented and discussed. Local and mean heat transfer coefficients were obtained by using Thermochromic Liquid Crystals and Digital Image Processing. The performances of a novel spacer geometry, consisting of spheres that are connected by cylindrical rods, and are hereafter named spheres spacers, were compared with those of more conventional woven and overlapped spacers at equal values of the Reynolds number Re (in the range ~150 to ~2500), the pitch-to-channel height ratio, the flow attack angle and the thermal boundar…

spacer-filled channelSettore ING-IND/26 - Teoria Dello Sviluppo Dei Processi ChimiciProcess Chemistry and Technologyheat transferChemical Engineering (miscellaneous)Membrane distillationFiltration and Separationspheres spacermembrane distillation; heat transfer; pressure drop; spacer-filled channel; spheres spacer; thermochromic liquid crystalsthermochromic liquid crystalsSettore ING-IND/19 - Impianti Nuclearipressure dropMembranes
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Nonlinear black-box models for short-term forecasting of air temperature in the town of Palermo

2011

Weather data are crucial to correctly design buildings and their heating and cooling systems and to assess their energy performances. In the intensely urbanized towns the effect of climatic parameters is further emphasized by the Urban Heat Island (UHI) phenomenon, known as the increase in the air temperature of urban areas, compared to the one measured in the extra-urban areas. The analysis of the heat island needs detailed local climate data which can be collected only by a dedicated weather monitoring system. The Department of Energy and Environmental Researches of the University of Palermo (Italy) has built up a weather monitoring system that works 24 hours per day and makes data availa…

urban heat island.Settore ING-IND/11 - Fisica Tecnica AmbientaleMeteorologyartificial neural networks nonlinear black-box models MLP temperature short-term forecastingTerm (time)Weather stationNonlinear systemBlack boxAir temperatureClimatologyWeather dataEnvironmental scienceUrban heat islandIntensity (heat transfer)
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