Modelling solar drying rate of waste-water sludge Ido Seginer* and Markus Bux 1 Civil and Environmental Engineering, Technion, Haifa, Israel 2 Agricultural Engineering, University of Hohenheim, Germany *Corresponding author. Fax: 972 4 829 5696; E-mail: [email protected] Efficient solar drying requires that the drying rate is quantitatively known as a function of the environment and th...

Calculation of evaporative heat loss is essential to heat balance calculations. Despite recognition that the value for latent heat of evaporation, used in these calculations, may not always reflect the real cooling benefit to the body, only limited quantitative data on this is available, which has found little use in recent literature. In this experiment a thermal manikin, (MTNW, Seattle, WA) w...

We demonstrate a way to circumvent the interruption of evaporative cooling observed at high bias field for 87 Rb atoms trapped in the (F = 2, m = +2) ground state. Our scheme uses a 3-frequencies-RF-knife achieved by mixing two RF frequencies. This compensates part of the non linearity of the Zee-man effect, allowing us to achieve BEC where standard 1-frequency-RF-knife evaporation method did n...

When a pool of water is deposited on a surface hotter than 200◦ C, it breaks into small drops that roll over the substrate with very little friction. The evaporation process of these drops lasts for a much longer time than expected the presence of a thin vapour layer supports the liquid weight by lubrication force, and the evaporation is drastically limited by the poor thermal conductivity of t...

A hurricane (also tropical cyclone, typhoon) is a warm-core, low-pressure system that develops over tropical or subtropical waters. Most hurricanes form from a trough of low-pressure, over ocean surface temperatures greater than 26°C. As air moves across the ocean surface, it extracts moisture (water vapour) and energy (as a result of evaporation) from the ocean. The low pressure draws air inwa...

A solar trigeneration system, based on photovoltaic-thermal (PV/T) collectors, photovoltaic (PV) modules and a heat pump unit for heating and cooling, is modelled to forecast the thermal and electric yields of the system. The aim of the trigeneration system is to provide enough electricity, domestic hot water (DHW), heating and cooling power to meet the typical demand of an urban single family ...

We consider the flow dynamics of a thin evaporating droplet in the presence of an insoluble surfactant and noninteracting particles in the bulk. On the basis of lubrication theory, we derive a set of evolution equations for the film height, the interfacial surfactant, and bulk particle concentrations, taking into account the dependence of liquid viscosity on the local particle concentration. An...