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Register a new userA qualitatives tudy of the main inputs and outputs combustions energy of biodiesel production unit and the influence of the plastic additives on the biodiesel's energy combustion
دراسة نوعية لطاقة احتراق أهم مواد مدخلات و مخرجات وحدة إنتاج وقود الديزل الحيوي و تأثير الإضافة البلاستيكية على طاقة الاحتراق
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يمكن إنتاج وقود الديزل الحيوي من الحموض الدسمة النقية أو من زيوت القلي (النفاية). و تتطلب النماذج التمثيلية لتعيين العلاقة الكمية بين شروط التشغيل المثلى و مردود عملية إنتاج وقود الديزل الحيوي، اعتمادًا على توازن الطاقة و الكتلة.
Biodiesel can be produced from pure fatty acids or from frying oil wastes. To optimize biodiesel manufacturing, many reported studies have built simulation models to quantify the relationship between operating conditions and process performance.
References used
Drapcho C, Nghiem J, Walker T. (2008) Biofuels engineering process technology. New York: McGraw-Hill Professional
Rajasekar E, Murugesan A, Subramanian R, Nedunchezhian N. (2010) Review of NO(x) reduction technologies in CI engines fuelled with oxygenated biomass fuels. Renew Sust Energy Rev 14:2113–21
Agarwal AK. Biofuels (2007) (alcohols and biodiesel) applications as fuels for internal combustion engines. Prog Energy Combust 33:233–71
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The manifestation of the self-action potential for charge carrier in system consisted of three spatially heterogeneous layers is investigated theoretically. The expressions for the self-action potential energy of a test charge placed in a central la
yer of the three-layer structures. The self-action potential energy of electron- hole and Wannier – Mott exciton are calculated numerically. The self-action potential energy of electron- hole and Wannier – Mott exciton are plotted as a function.
The recent few decades have witnessed growing interest in the environment- friendly
energy sources. Sea Wave Energy is considered as one of the energy sources in the
countries that are located on the seas and oceans. However, this energy source, ga
ined little
interest in Syria compared to sun and wind sources. The aim of this research is to
contribute to the body of research in this field, by developing and implementing an
experimental model of an oscillating water column system, which converts sea wave
energy into electrical energy.
Additionally, the research uses a set of true and false experiments to study the impact
of the technological variables of the system on its efficiency, hence on the number of
rotation of its Wells turbine. The results were represented graphically, and
recommendations and suggestions were provided for the possibility to apply this
technology in Syria.
A pilot unit was constructed and operated to study the ability of treating polluted water
using biological treatment. The experimental unit consists of water sprayer unit that ensure
wetting of the filtered media and distributing water in a homogen
ous manner as well as
increasing the dissolved oxygen concentration in water. The sprayer unit is followed by a
biological filter; the area of the filtered media was (13) m2. The developed biological film
placed on the filtered media will dismantle the organic matter, which reduce nitrates to
nitrite then to a nitrogen gas. The filter was connected to an aeration basin where the
suspended growth was archived. The pilot unit was operated depending on the water was
taking from a manhole nearby the residential unit number 18. The average efficiency of
BOD5 removing was 69.4% and of nitrate, removing was 34%. The results showed that
this system can improve water's characteristics.
This work is assigned to study the influence of different interaction potential forms
on the pressure and internal energy of crystalline argon along its isothermal curves at high
temperatures, expanded from melting point temperature up to room temp
erature at
different molar volume values expanded up to its value, corresponded experimental
equilibrium curves with gaseous and liquid phases within the framework of quasi-classical
approximation. The pair-wise inter-atomic forces in conjunction with three-body forces
were taken into consideration. The results of this study regarding the pressure and internal
energy of crystalline Argon were compared with available experimental data. The
comparison clearly indicates that the calculated results coincide well with the experimental
results.
This research includes designing and executing of an applied model for converting
the energy of the offshore sea waves into electrical power. The model runs according to
oscillating water column system (OWC) using air turbine, which rotates by the
air pressure
generated by the sea waves within the energy chamber.
The article studies the effect of technological changes on the efficiency of the model
and subsequently the number of its turbine's rotation, within the wave parameters under the
Syrian coast conditions. Results in form of clear curves and diagrams will be discussed.
They will also be analyzed and considered to achieve a suitable suggestion that can
improve the system in the future.
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