Parabola Dish and Cassegrain Concentrators to Improve Solar Cell Conversion Efficiency

Ali.H AL-Hamdani; Batool.D. Blawa; S.K AL-Ani

doi:10.21123/bsj.2011.8.2.571-576

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Publication Date

Sun Jun 12 2011

Journal Name

Baghdad Science Journal

Volume

8

Issue Number

2

DOI

10.21123/bsj.2011.8.2.571-576

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Parabola Dish and Cassegrain Concentrators to Improve Solar Cell Conversion Efficiency

Solar energy

Luminescent

Fresnel and Hybrid concentrators.

Ali.H AL-Hamdani

Batool.D. Blawa

S.K AL-Ani

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New designs of solar using ray tracing program, have been presented for improved the performance and the out put power of the silicon solar cell, as well as reducing the cost of system working by solar energy. Two dimensional solar concentrator (Fresnel lenses) and three dimensional concentrators (parabola dish and cassegrain) were used as concentrator for photovoltaic applications (CPV). The results show that the performance efficiency and out power for crystalline silicon solar cells are improved.

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Publication Date

Sat Mar 26 2022

Journal Name

Neuroquantology

Efficiency Evaluation of Optical System Includes Different Stop Apertures When Using Relative Moving Factor

Alaa B.

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In this work, optical system with different aperture shapes (circular, square, elliptical and triangle aperture) has been used for efficiency evaluation when the system involved moving factor in ideal case (aberration free). The optical system evaluate far moving object, therefore the image forming at image plane due to point spread function (image formula of incoherently illuminated point object). A mathematical treatment has been used to getting results by Gaussian numerical calculations method. The results show priority of circular aperture when optical system that submits of moving factor.

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(2)

Publication Date

Sun Dec 10 2017

Journal Name

Current Research In Microbiology And Biotechnology

the Efficiency of Dettol as Detergent against Microbial Biofilm formation isolated from UTI infections‏

Shaymaa Suhail

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Publication Date

Wed Dec 01 2021

Journal Name

Case Studies In Construction Materials

CFRP strengthening efficiency on enhancement punching shear resistance of RC bubbled slabs with openings

Nazar K.

Hammad D.

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(10)

Publication Date

Sat May 01 2021

Journal Name

Journal Of Physics: Conference Series

Evaluation the turbidity removal efficiency in Al-Wahda water treatment plant using statistical indicators

A T

N O

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Abstract<p>Most of drinking water consuming all over the world has been treated at the water treatment plant (WTP) where raw water is abstracted from reservoirs and rivers. The turbidity removal efficiency is very important to supply safe drinking water. This study is focusing on the use of multiple linear regression (MLR) and artificial neural network (ANN) models to predict the turbidity removal efficiency of Al-Wahda WTP in Baghdad city. The measured physico-chemical parameters were used to determine their effect on turbidity removal efficiency in various processes. The suitable formulation of the ANN model is examined throughout many preparations, trials, and steps of evaluation. The predict</p> ... Show More

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(1)

Publication Date

Sun Dec 10 2017

Journal Name

Research Journal Of Pharmaceutical, Biological And Chemical Sciences

Preparation, Spectral studies and Biological Efficiency of Metal (II) Mixed Ligand Complexes Schiff Base derived from (Benzaldehyde and O-Aminoaniline) with 8-Hydroxyquinoline.

8-Hydroxyquinoline

Mixed ligand complexes

Spectral studies

Biological efficiency

Amer J.Jarad

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A novel Schiff base ligand [N1-benzylidenebenezene-1,2-diamine(L) = C20H16N2] was prepared through intensification of benzaldehyde (C6H5CHO) and O- amino aniline O-C6H4(NH2)2 in ethanol with 8-Hydroxyquinoline (8HQ) . Formed compounds were acquired of 1:1:2 molar proportion reactions for metal ions and ligands (L) and 2(8HQ) during reaction for MCl2 .nH2O salt products complexes conformable into the forms [M(L)(8HQ)2] ,where M = Mn(II),Co(II) and Ni(II). Whole the compounds were identified during the basis of their; FT-IR and U.V spectrum, melting point, molar conduct, identify of the percentage from the metal at the complexes via flame (AAS), C, H and N content of the Schiff base (L) and metal complexes were analysis and magnetic susceptib

Publication Date

Sun Aug 03 2025

Journal Name

Journal Of Molecular Structure

Synergistic design of carbazole-bearing (D–π)₂-D–π–A architectures for dye-sensitized solar cells: Experimental and theoretical evaluations

Nawar Jamal

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Publication Date

Tue Aug 01 2017

Journal Name

International Journal Of Science And Research (ijsr)

Thermal Analysis of Double-Pass Solar Air Collector with Different Materials of Absorber Plate and Different Dimensions of Air Channels

Ali

Mustafa

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Search Results at the International Journal of Science and Research (IJSR)

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Publication Date

Mon Apr 06 2020

Journal Name

August

INFLUENCE OF SOME FACTOR ON SOMATIC EMBRYOS INDUCTION AND GERMINATION OF DATE PALM CV BARHI BY USING CELL SUSPENSION CULTURE TECHNIQUE

This study was done to examine different concentrations of mercuric chloride (Hgcl2) for Explants sterilization and different concentration of NAA) mg/L with 2iP for their effect on initiation primary callus and subsequent embryogenesis in Phoenix dactyliferae cultivar Barhi. Leaf primordial and shoot tips were excised from 2-3 years old offshoot. The result showed that contamination percentage decreased with an increase in concentration of Hgcl2 for two explants where in the control (0.0)% gave highest value 75% and 62.5% of contamination for leaf primordial and shoot tip respectively while the addition (0.1)% gave a significant decrease 37.5 and 0% for explants respectively. The Explants were inoculated onto Murashiege and Skoog

1962 (MS) medium supplemented with 2iP 3mg/L and containing 0

25

50 or 100 mg/L of NAA

the addition (50) mg/L of NAA gave highest value 68.8% in percentage of callus initiation with significant difference from addition 0% gave lowest value (18.8)%

as well Explants of shoot tip gave significant difference was 53.1% while leaf primordial gave 28.1%

Primary callus was transferred to fresh MS medium containing (0

5

10 and 20) mg/L of NAA with 3mg/L 2iP

Results were recorded after 12 weeks. A highest value of embryonic callus induction percentage or fresh weight and dry weight 87.5% or 1.56g and 0.47g for the character respectively for the treat 20 mg/L while control treatment 0.0 gave the lowest value 12.5% or 0.37g and 0.14g for same character respectively. Inoculated 1g fresh biomass into a 250 ml Erlenmeyer flask containing 50 ml MS liquid medium supplemented with NAA 20mg/L and agitated at 150 rpm by shaker to making suspension culture the measurements of packed cell volume ( pcv) or fresh and dry weight taken weekly for 12 weeks

maximum values were reached in the eighth week of PCV and fresh weight but the dry weight reached to highest value in seventh week

then the curve began to decline gradually until it reached stability in the last two weeks. The cell suspension was Diluted to different initial cell density of 100

500

10000

50000 and 100000 cells /ml with hemocytometer. The initial cell number of (10000) cells gave significant different of plating efficiency PE (11.6)% while (100) cells gave lowest value 1.8% of PE.

Ali A.

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Publication Date

Tue Nov 01 2022

Journal Name

Energy Reports

Thermal effectiveness of solar collector using Graphene nanostructures suspended in ethylene glycol–water mixtures

Ali Omran

Mohammed Suleman

Musaddak M. Abdul

Hamed A.

Khaled Mohamed

Miklas

Zaher Mundher

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(15)

Publication Date

Sun Sep 03 2017

Journal Name

Baghdad Science Journal

Toxicity Reduction of Reactive Red Dye-238 Using Advanced Oxidation Process by Solar Energy

photocatalysis

reactive dye

zinc oxide

azo dye

Riyad

Abdul Hamed

Eman

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Decolorization of red azo dye (Cibacron Red FN-R) from synthetic wastewater has been investigated as a function of solar advanced oxidation process. The photocatalytic activity using ZnO as a photocatalysis has been estimated. Different parameters affected the removal efficiency, including pH of the solution, initial dye concentration and H2O2 concentration were evaluated to find out the optimum value of these parameters. The results proved that the optimal pH value was 8 and the most efficient H2O2 concentration was 100mg/L. Toxicity reduction percent for effluent solution was also monitored to assess the degradation process. This treatment method was able to strongly reduce the color and toxicity of reactive red dye-238 to about (99 an

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