Evaluating the performance of windows glass from the electric power consumption

The demand growing of energy is offset by the weakening of the generating capacity of power due to the war conditions in Syria. As the windows are the means of optical communication between inside and outside of the building, the source of the ventilation and the natural lighting, thus having an important effect on the thermal performance of the building, which affects the consumption of energy. so the search relied on proposing alternatives for glass to test its thermal performance, the choice of alternatives was based on the diversity between the values of solar radiation permeability and the visual light in addition to enumeration of the layers, to which end the computer simulation method was adopted and the results were compared to a model Standard (single-transparent). The results of the comparison showed that the amount of energy saving could be as high as 35% for the face of the sun-exposed facades directly. By reducing the permeability of the total glass of solar radiation and increasing the permeability of the visible light to increase the amount of natural illumination, plus the adoption of a Multi-layered glazing system , the study recommended that appropriate glass selection must be taken into account in the early design phase

Spectral Properties of Tinged Glasses with Silver Bromide by Porous Glasses Method

Porous glasses were produced using sheet glass cullet with added magnesium carbonate MgCO3 as foams agents .The structure of glasses tinged with silver bromide by porous glasses, was studied by UV–VIS spectroscopy,transmission of light and X-ray diffraction XRD techniques. glasses plates were obtained by impregnation of porous glasses at first with AgNO3 aqueous solution , next in the KBr aqueous solution. Then the samples was sintered at temperatures 950°C up to closing of the pores. The results of spectroscopy study have shown that the glasses tinged plates, according to XRD data, the glasses tinged contain the AgBr phase.

The effect of some inorganic waste on the volumetric and longitudinal shrinkage curves at unsaturated polyester resin

This research aims to study the effect of adding inorganic waste (Marble powder - glass powder) on the volumetric and longitudinal shrinkage curves at unsaturated polyester resin, tests showed that samples exposed to volumetric and longitudinal shrink and occurrence of consecutive gradients in volumetric shrinkage values. Whatever the ratio of the added materials (marble powder - the glass powder) will effect the behaviour of the unsaturated polyester hardening, that means it will effect the volumetric shrinkage. It is necessary to study the volumetric and longitudinal shrinkage values because they affect the product size to be dealt with, this value should be taken into account in the design so that should be added this amount of volumetric shrinkage to the dimensions to designed templates in order to avoid potential variations occurring in the final product. Preliminary results showed that the value of volumetric shrinkage got up (5%) and the curves tend to stability, almost three weeks after the initial hardening incident.

Methods of coping psychological vocational stress and their Relations with some variables "A field study of a sample of workers at AlKadam glass factory in Damascus"

- This study aims to find out the methods which workers have to cope psychological pressure to which they expose and know whether there were statistically differences in coping pressure which due to the variables of the study: Qualification, years of experience, workers ages at Al-Kadam glass factory. - This study applied on /200/ workers who were selected randomly.