Research Abstracts

The objective of this paper is to present the planned activities and future results of the ADIRA project. After a short introduction into the problem of energy and clean water supply in rural areas, a detailed project description follows in order to inform relevant stakeholders about the present act

The rate of distillate depends mainly on operating temperature, shape and material of the condensing cover. Further, it is important to study the behaviour of heat and mass transfer relations as a function of operating temperature, shape and material. For the present study two sizes of semi-cylindri

A new multi-effect plate evaporator, EasyMED, is presented. This patented process [1] is applicable for seawater desalination using simple and modular technology. Experimental results from the hydrodynamics and thermal performances obtained with a one-effect laboratory unit with 0.4 m3/d distilled w

A high-velocity double-chamber bed (HDCB) is a new type demineralizer whose flow velocity can exceed 40 m/h. This paper analyses the six factors that influence operational resistance and points out that the theoretical flow velocity of the HDCB can surpass 40 m/h by increasing the diameter of resins

Following an increased interest in the last decade to employing peracetic acid (PAA) as an alternative disinfectant to chlorination, a study was started to investigate the technical, economic and chemical suitability of PAA for disinfecting municipal wastewater to be reused in agriculture. Laborator

The film thickness distribution and average thickness outside a horizontal test tube were measured with a filmthickness meter. The effects of liquid load, evaporation boiling point, temperature difference and tube diameter on the film thickness, the waving intensity and, as a result, the heat-transf

The effects of liquid load, tube diameter, evaporation boiling point, condensation temperature difference and steam flow velocity on the heat-transfer film coefficients inside horizontal tubes were studied. The experiments were conducted with various operation parameters. In fact, if there is little

In this work, we report about cellulose acetate nanofiltration (NF) membrane preparation according to the phase inversion process. Pore size was monitored by using dope solutions of two polymer concentrations (20 and 22 wt-%) and annealing temperatures from 60–80°C. Membrane characterization include

The potential of the fluid mixture water–(LiBr+LiI+LiNO3+LiCl) is studied by numerical simulation for purification of seawater using single-stage absorption heat transformer. The multi-component salt mixture shows a considerably higher solubility than that of the conventional working fluid water–LiB

Pre-treatment of seawater feeding reverse osmosis (RO) membranes is a key step in designing desalination plants. The pre-treatment process must be adapted to the seawater quality to be treated (wells, open intake, etc.), especially when treating surface seawater with highly variable quality. After a