تمت في هذا البحث دراسة الامتصاصية لبعض العينات من خلائط التوتياء (بنسب مختلفة) و التي تم تصنيعها في السوق المحلية, حيث يمكن استخدام هذه العينات كأسطح ماصة absorber plate في اللواقط الشمسية. و تم إجراء هذه الدراسة في المخبر أولاً باستخدام منبعين للضوء استطاعة الأول (100W) و استطاعة الثاني (30W), و ثانياً في الوسط الخارجي باستخدام الإشعاع الشمسي المباشر. و يوفر بحثنا هذا معلومات هامة يمكن الاستفادة منها في تحسين مردود اللواقط الشمسية باستخدام الأسطح الماصة التي لها أعلى امتصاصية.
كما قمنا بدراسة العلاقة بين هذه الامتصاصية و العدد الذري للعينات المدروسة, حيث أظهرت هذه الدراسة أن الطاقة الممتصة بوساطة هذه العينات تزداد بازدياد عددها الذري.
In this research we have studied the absorbance of some zinc alloys. These alloys were
manufactured in the local market, and these alloys can be used as absorber plate in the
manufacture of solar collectors. We conducted this study in the laboratory, first (using
tow light sources, 100W and 30 W), and Second in the external medium using direct solar
radiation. Our research provides important information that could be used in improving the
efficiency of solar collectors using absorbent surfaces that has a higher absorbency.
We have also studied the relationship between the absorbance and the atomic number of
the studied alloys. This study showed that the absorbed energy by these metals increase
with their atomic laboratory number Z.
References used
HERETOGE,S.E. Vocabulary Definitions, Rivers of Steel, Western Pennsylvania , 2007,p.7
JBELI,H.I, DALATY,B.O, HATEM,A.M,Studying The Real Black Body Absorption for Designing a Device used to Measure The Solar Radiation In ALKadmous, Master in physics, Tishreen university,2013,p.81
JBELI,H.I, DALATY,B.O, HATEM,A.M.Measuring the light energy absorbed using some of metals and their relation to the atomic number Z of these metals . Tishreen university journal for research and studies, Vol.(34)No.3,2012,p.165-176
The concentrations of Copper (Cu) and Zinc (Zn) in samples of some spices
available at some local markets in Syria were determined, after nitric digestion, using
Atomic Absorption Spectrometry. The study showed differences in metal concentrations
In this research we studied and measured the response and absorbance for some metals (zinc, copper, iron, aluminum) which are exposed to the direct light and painted with black, which has a high absorbance and low emittance, and with different thickn
The concentrations of copper (Cu) and zinc (Zn) in samples of some cereals available at
local markets in Syria weredetermined, after nitric digestion, using Atomic Absorption
Spectrometry. The study showed that the heavy metals were present in all
Background& Objective: many studies have been made about the facial structures by cephalograms, but
a rare studies carried by lateral photographs to evaluate face profile in the different ethnic societies. The
aim of this study was to determine soft tissues characters in the Syrian society.
In this resecarh the improvement of SO3 absorption via oxidation of
SO2 ,which is a by product from a chemical plant in Damascus ,
using Ozone and active carbon – was stadied .
The main purpose of this research paperis :
. To obtian acceptable co