Research Abstracts

The characteristics of wind flow past simplified models of one-side pitched roof buildings were examined in a wind tunnel that was designed and built at the Housing and Building Research Center (HBRC). The wind tunnel consists of a square cross section of 200 mm × 200 mm (a bellmouth intake, main en

The synchronizing of cooling loads with solar radiation intensity is an important advantage when we utilize solar energy in cooling or air conditioning in residential buildings. Practical experience confirms that appropriate design of these systems can achieve good results to use solar energy in air

In this work a drying system was constructed, consisting of three parts (solar collector, solar drying cabinent, and air blower). Two identical air solar collectors having V-corrugated absorption plates of two air passes, a single glass cover was used. The total area of the collectors is 2.4 m2. The

A new theoretical approach of black flat-plate solar collector considering the glass cover as a participating media taking into account the absorption and emission within a glass cover is presented. Two kinds of glasses commonly used as cover for such system, clear and low iron, have been studied. T

The performance of the drying chamber of a solar assisted drying system was analyzed. The solar assisted drying system consists of drying chamber, V-groove collector of 13.8 mð area, the auxiliary heater and two variable speed centrifugal fans. K-type thermocouples were used for temperature measurem

The performance of a single slope solar still using different operational parameters was studied experimentally. The still productivity increased up to 51% when combined enhancers such as asphalt basin liner and sprinkler have been applied to the still. Also the ambient conditions were found to have

In this research a new approach for employing solar radiation as the main source of energy for paddy drying was introduced. The drying test rig was designed, fabricated and evaluated. The rough rice solar dryer was a cross flow and an active mixed-mode type with a new and an efficient timer assisted

One of the most promising source of renewable energy is the direct conversion of solar energy owing to the present state of achieved technology in manufacturing PV modules, their comprehensive cost and the high depletion in non-renewable energy sources. The reliability of stand alone PV systems beco

One of the applications of photovoltaic (PV) generators today is PV-hybrid power system for electricity supply for remote residences. In these systems, one or more PV array(s) are combined with one conventional source of power (diesel and/or wind) for making a more reliable electricity supply. Batte

Electric energy consumption in the arid Saharan regions is continuingly increasing due to increasing urbanization. Photovoltaic solar energy may be a suitable form of alternative electric energy production due to the abundance of solar energy in this region. In this paper we are presenting the gener