This report explores the development of a one-dimensional mathematical model for the evaporation of a pure liquid droplet suspended in its own vapour. In an attempt to account for all relevant transport mechanisms, a “first principles” approach is taken by developing the model from fundamental conservation equations. With the aid of a perturbation analysis, a reduced system of equations is achi...

Six commercially available proteins were screened using the "sparse matrix" solutions of Jancarik and Kim (with modifications by Hampton Research Inc.). The screens were performed using the most common vapour diffusion method and three variants of the microbatch crystallization method, including a novel evaporation technique. Out of 58 crystallization conditions identified, 43 (74%) were identi...

We consider theoretically, computationally and experimentally spontaneous evaporation of water and isopropanol drops on smooth silicon wafers. In contrast to a number of previous works, the solid surface we consider is smooth and therefore the droplets’ evolution proceeds without contact line pinning. We develop a theoretical model for evaporation of pure liquid drops that includes Marangoni fo...

Carbon nanotubes (CNTs) and nanofibres (CNFs) are grown on bulk-micromachined silicon surfaces by thermal and plasma-enhanced chemical vapour deposition (PECVD), with catalyst deposition by electron beam evaporation or from a colloidal solution of cobalt nanoparticles. Growth on the peaked topography of plasma-etched silicon ‘micrograss’ supports, as well as on sidewalls of vertical structures ...

Dewetting of a substrate, i.e. the liquid film retraction under partial wetting conditions, has been studied extensively over past decades. This theoretical work deals with dewetting phenomenon in presence evaporation into pure vapour atmosphere driven by substrate superheating respect to saturation temperature corresponding pressure. The dynamic profile vapour–liquid interface is analysed nume...

tellurium nanostructures have been prepared by physical vapor deposition method in a tube furnace. the experiments were carried out under argon gas flow at a pressure of 1 mbar. tellurium powder was evaporated by heating at 350°c and 430°c and was condensed on substrates at 110–250°c, in the downstream of argon gas flow. the products were characterized by field emission scanning electron micros...

Heat driven cooling technologies like vapour absorption and adsorption systems are environmentally friendly. Use of thermal compression in these systems saves precious and fast-depleting fossil fuel resources. Solar energy and low-grade waste heat can be effectively used in running these cooling systems. The present work focuses on the development of a solar-powered vapour adsorption based cool...

The potential use of shade covers to reduce evaporation from agricultural reservoirs motivated this study on the effect of black polyethylene shade on the evaporation rate from a small water body (Class-A pan) and of its driving variables. Evaporation was measured hourly in two pans during the summer in Cartagena (Spain), along with the measurements of air temperature and humidity, water temper...