Central receiver systems (CRS) are a promising concentrated solar power (CSP) technology for dispatchable electricity generation. The CRS levelized cost of electricity (LCOE) is usually increased by low power-block capacity factors or by high thermal storage costs. The economical turnover is...

This work reviews the state-of-the-art nanostructured photoelectrodes for use in dye-sensitized solar cells. The influence of the photoelectrode structure in the DSC performance is analyzed. The nanostructured photoelectrodes can be classified into: (1) nanoparticles with high surface areas for...

A complex interaction of many design, assembling and operating parameters as well as the properties of the materials used in the construction of polymer electrolyte membrane fuel cells (PEMFC) result in an uneven electrochemical performance over the MEA active area. For more than one decade,...

In the run up to the financial crisis of 2007--2009 many developing nations were subject to massive inflows of capital, capital that their financial systems found difficult to absorb. One of a number of policy options to respond to such inflows is unremunerated reserve requirements (URR). Two...

A new microencapsulated PCM (Phase Change Material) slurry (MEPCS) at high concentration (45% w/w) was developed based on microencapsulated Rubitherm RT6. Its heat storage and heat transfer characteristics have been experimentally investigated in order to assess its suitability for integration...

Ejector refrigeration is one of the most promising technologies because of its relative simplicity and low initial cost. In this work, a theoretical study has been carried out to assess system and refrigeration efficiencies of a solar-assisted ejector cycle using water as the operating fluid....

Indoor space cooling represents a large potential for solar energy use due to the relative coincidence between energy availability and cooling demand. Solar-assisted air conditioning (AC) applications emerged with the development of high efficiency solar collectors. Energy storage (hot or cold)...

An electrogasdynamic (EGD) power converter, a device that converts mechanical energy into electric energy without moving parts, is described. A mathematical model that describes the complex two-phase fluid flow and electric field interaction was developed using a commercial CFD program. The...

The advantages of numerical modelling compared with experimental studies (e.g. reduced cost, easy control of the variables, high yield etc.) are well known. Theoretical studies where experimental validation is also presented provide an important added value to numerical investigations. In the...