The document provides information about a refinery including:
- It started operating in 1984 as a joint venture and now processes 400,000 BPD of crude oil.
- Its main product yields are gasoline, diesel, jet fuel, and fuel oil.
- It has technical, operations, maintenance, and financial departments.
- Case studies examine crude distillation unit stream flows over 10 years and calculate heat exchanger fouling rates to predict cleaning needs.
- An experience overview discusses the refinery's induction program and a heat exchanger bundle replacement and testing project.
THE PRESENTATION SPEAKS ABOUT THE BASIC IDEAS ABOUT EFFICIENCIES OF BOILER AND TURBINE IN A COAL BASED THERMAL POWER PLANT WITH THE DESIGN EFFICIENCIES AND HEAT RATE. IT ALSO THROWS LIGHT ON THE VARIOUS IMPROVEMENTS IN HEAT RATE AND EFFICIENCIES.THAT CAN BE ACHIEVED.
At the technology round table strategic presentations on Industrial Refrigeration will be presented by leading industry representatives, followed by a panel discussion.
"El masaje automático específico de colon mejora el estreñimiento crónico idiopático en mujeres mayores". Autores: Immaculada Herrero Fresneda, Marc Benet, Àngel Calzada, Markus Wilhelms
THE PRESENTATION SPEAKS ABOUT THE BASIC IDEAS ABOUT EFFICIENCIES OF BOILER AND TURBINE IN A COAL BASED THERMAL POWER PLANT WITH THE DESIGN EFFICIENCIES AND HEAT RATE. IT ALSO THROWS LIGHT ON THE VARIOUS IMPROVEMENTS IN HEAT RATE AND EFFICIENCIES.THAT CAN BE ACHIEVED.
At the technology round table strategic presentations on Industrial Refrigeration will be presented by leading industry representatives, followed by a panel discussion.
"El masaje automático específico de colon mejora el estreñimiento crónico idiopático en mujeres mayores". Autores: Immaculada Herrero Fresneda, Marc Benet, Àngel Calzada, Markus Wilhelms
The CRB Tech Institute of Clinical Research is a unique year-long education, learning and guidance system for fellows with biology background. It provides a broad education and learning on clinical research methods, research partnerships and managing the demands of family and profession. The goal of CRB Tech Institution is to produce a team of researchers armed with suggestions for clinical research carrying out innovative clinical trials and access to sources to make their concepts a reality.
todo equipo electronico esta internamente compuesto por otros elementos que al final todos en si tienen una funcion diferente pero que trabajan entre ambos para el mejor funcionamiento del mismo.
NOUVEAU DÉCRYPTAGE DU GROUPE ALPHA SUR LA MISE EN OEUVRE DE LA L.S.E ET PREMIÈRES ANALYSES DES PROJETS DE LOI FLORANGE ET LOI SUR LA FORMATION PROFESSIONNELLE.
Pour téléchargez le documents rdv sur : http://www.secafi.com/fr/actualites/information/lse.html
Refonte digitale du site du Château de Versailles dans le cadre d'un appel d'offres fictif à HETIC.
Plus d'informations sur : http://www.hetic.net/actualites/projets/redesign-du-chateau-de-versailles
Equipe dirigée par : Louis CHARACHON
Oscar DELOIZY
Maxime GUIONEAU
Centis MENANT
Maxime ROBIN
Designing of sprinkler irrigation systemEngr Mehmood
Sprinkler irrigation is a method of applying irrigation water that is similar to natural rainfall. Water is distributed through a system of pipes usually by pumping. It is then sprayed into the air through sprinklers so that it breaks up into small water drops that fall to the ground.
Volvo EC210B LC EC210BLC Excavator Service Repair Manualjfkksefmmsem
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3. • Started operating in 1984 by the joint venture of Petromin &
Mobil Oil Corporation (PEMREF)
• Saudi Aramco took Petromin shares in 1993 (SAMREF)
• Initial design processed 250,000 BPD of Arabian Light Crude Oil
• Nowadays, design reached around 400,000 BPD capacity
3
15. • Objective:
– Learn PI tag system integration with Excel
– Calculate yield using actual live data (10 years range)
15
Crude Distillation Unit Stream flow (m3/day) Tag No. from PI system
Input CDU Feed 11FNQX001.
Output
Naphtha 11FN091.
Kero 11FN092. + 32FN658.
LGO 11FN093.
HGO 11FI094.
CDU Bottom (Resid) 12FN003.
19. • Flowrates were balanced most of the ten years (input = output)
• Kerosene flow reading (32FN658.) had very low readings until 2013.
The reason according to Eng. Abdulaziz was CHD unit was too small
and was improved in Jan 2013
• Some turnarounds and shut down periods were noticed in the figures
(yield % = around zero)
• Shut down in April 2016 (last bottom peak) in VDU while I was a
trainee
19
20. • Objective:
– Find actual and theoretical heat transfer coefficients
– Calculate fouling rate to predict when the unit needs cleaning
20
21. 21
Tube-
Light
Arabian
Crude
Density ρ 778.5 Kg/m3
Specific Heat(Cp) 2.395 KJ/(Kg.C°)
Surface Area 240.74 m2
Thermal Cond. (k) 0.1135 w/m.C°
Viscosity (µ) 1.4 mPa.s
Velocity U 3.5 m/s
outside diameter 254 mm
Thickness. 2.74 mm
inside diameter 251.26 mm
22. 22
y = 2.688x - 80.21
R² = 0.9935
0.000
100.000
200.000
300.000
400.000
500.000
600.000
700.000
800.000
0 50 100 150 200 250 300 350
U(KW/m2.C°)
Feed Flowrate (kg/s)
Actual Heat Transfer Coefficient U (W/m2.C°) (23/Apr to 11/June) in
2010
Actual U
Linear (Actual U)
This equation is used
to find U theoretical
25. 25
y = 0.0145x - 556.33
R² = 0.3983
0.000
10.000
20.000
30.000
40.000
50.000
60.000
70.000
80.000
90.000
100.000
28/May/05 10/Oct/06 22/Feb/08 6/Jul/09 18/Nov/10 1/Apr/12 14/Aug/13 27/Dec/14
Foulingrate
Fouling Rate for 11-E-01
This is the after cleaning
period used to get the
theoretical U
26. • Difference between Theoretical and actual U was noticeable, so
not very efficient is not optimum
• Fouling rate figure during 2016 shows non stability, there are
several reasons for this and they need to be checked
• Some optimization techniques were suggested to improve the
efficiency of these heat equipment. Also to decrease the load on
some suboptimal equipment.
26
27. • Objective:
– Understand how pumps cavitates and malfunction
– Evaluate efficiency, hydraulic power, total head, net positive
suction head required and absolute
– Suggest methods to improve the NPSHa
27
33. • NPSHa was noticed to be a critical aspect of a pump efficiency
• NPSHr is usually uncontrollable, because it is designed by
company that built it
• Allowing higher level in the supply tank will reduce chance of
pump cavitation
• Frictional loss could be decreased by reducing valves, strains, and
length of the piping
33
35. • 2 Weeks of rich preparatory induction program (full day class)
– Chemical Engineering for 1 week
– Mechanical Engineering for 2 days
– Electrical Engineering for 2 days
– Control & Instrumentation for 1 day
35
