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Register a new userالنمذجة الرياضية لأنظمة محطات الطاقة الحرارية و حساباتها الحرارية باستخدام الحاسوب
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عيسى مراد( باحث )
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قدم البحث كيفية النمذجة الریاضية لعناصر أنظمة محطات الطاقة الحراریة بهدف تحدید بارامترات النظام الحراري (بعض البارامترات الترمودیناميكية الأساسية، التدفق الكتلي و الطاقي في الجریانات بين عناصر محطة الطاقة الحراریة) .
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References used
J. Portacha - Optymalizacja struktury ukladu cieplnego silowni parowych , Archwium Energetyki , Nr 2/1972
J. Portacha - Macierzowy zapis ukladu ruruciagow , Archiwum Energetyki Nr 1, 1974
J. Portacha , A. Smyk , I. Mrad - The possibilities increasing peak power of a power plant unit through energy storage in a regenerative system. PD-vol. 64-3 Engineering System Design and analysis, Volume 3, ASME 1994
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In this research electrochemical treatment was used to treat Al-Sin water that feed Banias
thermal station boilers for generate electricity , this recycled pure water minimize
corrosion and wear of turbine, the current of (2A) and (12V) was applied
by
Transformer on metal electrodes of aluminum. The electrochemical treatment efficiency
was studied.
Results revealed that the turbidity decreased for about (98%), and that total dissolved
solids (TDS) and conductivity were reduced by about (61%) and (70.8%) respectively after
one hour of treatment process.
Research topic includes the construction of a mathematical
model to study the effectiveness of the basic design of condensation
of steam plants to develop thermoelectric centers dedicated to the
production of electric power and water desalination.
To maintain
the thermal efficiency and maintain a minimum level of
contamination , has been in the current study compared the amount
of savings in consuming the amount of fuel as a result of the
process of co-production of electricity and desalinated water in the
proposed design, compared with the amount of fuel consumed as a
result of the separate electric power production and water
desalination process .In order to study the effect of this has been the
design and evaporative desalination unit and multi-effect unit gas
turbine and the basic termodinamics properties . the efficiency
measure to develop the basic design of the steam plant.
The thermal exchangers are widely used in the power generating stations and many
refrigeration systems. Activity in the thermal cycle depends on its design and real
calculations.
The aim of our present work, is to find an ideal calculation method
of the working
exchangers parameters and evaluating the used technical engineering soluting.
We discussed the ideal chosen problems and the affecting parameters, and used a
calculating design for a thermal exchanger in the heating and feeding with hot water,
considering these parameters. The proposed designing benefit, could be evaluated from the
final indication that could be expressed by real palpable material.
We found that the ideal parameters choosing could clearly descrese the preparation
costs the heat exchanger blank – form by three times and give full clear proposed
calculation method of all the parameters and its exchanging. This could save of the best
exchanging possibility chosen from the different exchanger.
In this paper we have studied the implementation of variation of heat flux and mass velocity on the
variation of steam mass content along of steam generation tube for various two phase forced flow boiling
regimes of vertical tubes.
errite (x=0.5) was prepared by a well-known conventional ceramic double sintering method (CCDS). Force constant K was calculated for tetrahedral and octahedral sites. The elastic constant C11, bulk modulus B , longitudinal and shear wave velocities w
ere calculated. Threshold frequency for electronic transition was determined using IR spectra. In addition, the drift mobility for tetrahedral and octahedral sites, as well as magnetic dipole moment changes for bond were determined. The area beneath endothermic peaks was correlated to the weight change TG%. On the other hand, the heat capacity under constant pressure CP was correlated to sample treatment temperature. It has been noticed that the CP has a critical value at 175.
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