Print ISSN: 1681-6900

Online ISSN: 2412-0758

Keywords : Performance


Experimental Study of the Performance Water Distillation Device by Using Solar Energy

T. Z. Farge; K. F.Sultan; A.M. Ahmed

Engineering and Technology Journal, 2017, Volume 35, Issue 6, Pages 653-659

Evaluation and an experimental study of the performance of solar water distillation by using collector box with the aperture area of the water distillation of (1*0.6) m. The obtained results are shown that the amount of distilled water increased with increasing the solar radiation temperature. The highest solar water distillation efficiency was found equal to 11.4% for rainy and partially cloudy day between 8am to 10am for 12/4/2016. Also the second higher efficiency was found equal to 5.155 for a sunny day between 10am to 12 pm for 20/4/2016. The results indicated that the distilled water can be obtained on if even the weather condition very bad and the solar radiation very low as well as the higher amount of distilled water can be obtained at higher values of solar radiation intensity. Experimental results showed the higher ambient temperature lower the condensation, which lowering the amount of distilled water.

The Role of New Technology in Inquiry Media Architecture

A.M. Jaafar; E.S. AbdulAhadd

Engineering and Technology Journal, 2017, Volume 35, Issue 0, Pages 48-63

The late twentieth century saw clear sophisticated in information and multimedia technology, which
becoming a bigger influential in daily human life and also in the built environment posed by the need and
shape, so architecture Included all achievements that were produced by this technology, that’s current
research focus, Thus the emergence of the research problem of the "absence of a clear vision about the
nature of the relationship formulated by the media as the media surfaces of architecture with the receiver".
The goal of research Represent with trying to define what the media and media architecture clarify new
relationship with the receiver drafted by the type of sensory and behavioral impact through the formulation
of the surfaces of architecture. To achieve the objective search mode method of literature review of previous
dealt to define multimedia architecture such as offering in Search explains the meaning of a new type of
architecture witnessed by the architectural arena specific dimensions and goals, To move in the private
segment to illustrate the specificity and tools design represented-media and smart materials responsive
invented and achieved a new version of the architecture is different facads and its impact sensory behavioral
traditional and reach conclusions have been put through practical models (international, Arab and) were
accomplished.

Optimum Charge and Performance for R432A under Window Type Air-Conditioner Systems

Haider ali hussen

Engineering and Technology Journal, 2014, Volume 32, Issue 6, Pages 1369-1379

The study presents optimized R432A charge by the index of power consumption of compressor and COP without changing the compressor. Test results showed that the best charge is 750 g for R432A which gave the highest coefficient of performance and less energy consumption. When charging the system with 750 grams, the amount of charge rate down to 42.3% compared with the original gas. The percentage increase in coefficient of performance are 9.85%, 8.39%, and 8.93% and the proportion of low energy consuming are 7.53%, 7.31%, and 7.34% at ambient temperatures of 30 ᵒC,34 ᵒC and 38 ᵒC respectively for R432A compared to R22. Increasing ambient temperature lead to increase in the power consumed and decrease coefficient of performance.

Influence of Inverter Switching Conditions on PMBLDC Motor Performance

Jamal Abdul-Kareem Mohammed

Engineering and Technology Journal, 2012, Volume 30, Issue 19, Pages 3394-3409

Permanent Magnet Brushless DC (PMBLDC) motors are generally powered by
a conventional three-phase voltage source inverter (VSI) or current source inverter
(CSI) which is controlled using rotor position. By varying the commutation
(switching) angles of the transistors in the inverter circuit, the performance of these
motors could be greatly varied. This can studied in this paper using the dynamic
motor model, which was performed using Matlab/Simulink software package. A
study on the influence of switching angles on motor performance shows that the
motor operates better when advancing the switching angle, and there is certain
angle at which the motor operates with the highest efficiency. An improvement of
the different operating characteristics of PMBLDC motor has been accomplished
by adjusting the chosen set of the switching angles and using appropriate
conduction angles.

The Relationship between Quality, Benchmarking, Reliability and Globalization In Industrial Engineering Activity

Saleh J. Fendi

Engineering and Technology Journal, 2012, Volume 30, Issue 17, Pages 3065-3081

The study is perhaps the first to evaluate and establish the relationship between
Quality, benchmarking, Reliability and globalization in industrial engineering activity
in Emirates, where the study was conducted on international companies operating in
Dubai. The study seeks to understand the impact & effect of globalization on all the
various topic of industrial engineering that distinguish implementing quality
management program, reliability program and ISO certified and benchmarking
companies from none implemented benchmarking or quality, reliability, ISO program.
Also the study tries to evaluate the effect of these factors on the organizational
performance. The study found a number of significant relationships between the
reliability, and globalization in industrial engineering activity. It also found support for
the argument that high reliability, high quality and benchmarking practices will
improve industrial engineering and at the end result will improve overall organizational
performance in large, medium and small global businesses. Therefore the results
achieve the goals of industrial engineering to eliminate wastes of time, cost, materials,
energy, and other resources to increase profits.

A Numerical Model For Performance Prediction Of Dry Cooling Conditions Of Air Cooled Condensers In Thermal Power Plant Stations

Ali Hussain Tarrad

Engineering and Technology Journal, 2010, Volume 28, Issue 16, Pages 5271-5291

The present work represents theoretical treatment of dry cooling of the air cooled condensers applied in the power plants technology. A suggested model was built in a form of computer program to predict the effectiveness of the condenser showing the effect of inlet air temperature and its mass flow rate on the performance of the condenser. The model construction depends on the idea of using a row by row marching solution for energy balance for both stream sides.
The model has the ability to estimate the heat transfer coefficient, air temperature and other air physical properties distribution in the air flow direction from row to row. The results showed that using the cooling process of the air before entering the condenser improves the performance of the condenser and reduces the required area for a specified condensation load and steam loading. For fixed surface area of
the condenser, lowering the dry bulb temperature from (45) to (28) ºC at a constant wet bulb temperature and mass flow rate of the entering air can improve the condensation load up to (23 %) for the present investigated conditions.