Saturday, March 30, 2013

Eskom Lethabo Power Station Success Story – Power Generation

Lethabo Power Station, owned by Eskom Holdings, generates electricity for much of Africa. Eskom’s Lethabo Power Plant in South Africa has partnered with Invensys to improve profitability and performance in the workplace. Invensys’ product SimSci-Esscor has provided this plant with its Operator Training Simulator (OTS) solution. OTS helps improve operating costs by providing the proper training of operators. This solution aids this facility in its mission to provide affordable electrical power to an increasing percentage of the African population. To learn more, click here.



About Operator Training: Invensys offers a computer-based training method, Operator Training Simulators (OTS), to help give operators the skills they need to run a process or plant. Refineries and other plants are being forced to rely on inexperienced operators due to the aging workforce. Undertrained employees reduce performance and profitability in a refinery and may also risk the safety of other employees. The aging workforce is moving closer to the age of retirement, making it imperative to train younger, less experienced employees. Invensys offers an Operator Training System to aid refineries in educating inexperienced operators, who will soon be relied upon to operate the refinery and perform operational excellence.
Operators learn the ins and outs of a refinery in this virtual control room. DYNSIM is a model that controls the plant response. Trainees learn how to react appropriately when a similar situation occurs in the actual plant. DYNSIM Checkout is the first process dynamic simulation product designed specifically for control checkout. This solution can validate control system design before it is installed in the plant which eliminates many problems that occur during startup.
Technical Support: As always, feel free to reach out to your local technical support team for more information.

Friday, March 29, 2013

From DowstreamToday: US Shale Boom: Downstream Picture Starts to Emerge

US Shale Boom: Downstream Picture Starts to Emerge


LONDON (ICIS)--A picture is slowly emerging of how petrochemical producers in North America intend to add value to their already significant local ethylene cost advantage through new derivatives capacities.


Read full article here

How is feedforward control done in PRO/II?

How is feedforward control done in PRO/II?

 Use the DEFINE option to access and use flowsheet variables that have been calculated previously.







About PRO/II: PRO/II is the major product in the Process Engineering Suite (PES). This process simulation software optimizes plant performance by improving process design, operational analysis, and performing engineering studies. It is designed to perform rigorous heat and material balance calculations for a wide range of chemical processes. PRO/II allows users to evaluate the use of heat integration with case studies, rigorously evaluate process improvements with the help of a process flow diagram (PFD), or model crude distillation units. PRO/II offers a wide variety of thermodynamic models to virtually every industry and is incredibly cost effective, decreasing both capital and operating costs.
Technical Support: As always, feel free to reach out to your local technical support team for more information.

Thursday, March 28, 2013

The PRO/II LinkedIn group is almost at 1,000 member

The PRO/II LinkedIn group is almost at 1,000 member!

Are you a member? If not, join here!

When we reach 1,000 members, I will randomly select 1 person to receive a free 4 GB memory stick.

I will post the winner details on the blog and in the PRO/II discussions.



About PRO/II: PRO/II is the major product in the Process Engineering Suite (PES). This process simulation software optimizes plant performance by improving process design, operational analysis, and performing engineering studies. It is designed to perform rigorous heat and material balance calculations for a wide range of chemical processes. PRO/II allows users to evaluate the use of heat integration with case studies, rigorously evaluate process improvements with the help of a process flow diagram (PFD), or model crude distillation units. PRO/II offers a wide variety of thermodynamic models to virtually every industry and is incredibly cost effective, decreasing both capital and operating costs.
Technical Support: As always, feel free to reach out to your local technical support team for more information.

Study: Twitter Mobile Users More Engaged with Brand

Study: Twitter Mobile Users More Engaged with Brand

What is your opinion? Do you use Twitter? Are you more engaged in various brands - maybe SimSci-Esscor?

Flash Stream Hot Key

How do I use the Flash Stream Hot Key in PRO/II?

Wednesday, March 27, 2013

Refinery Performance Webinar recordings now available for viewing


Invensys Operations Management frequently offers live webinars to help viewers gain a better understanding of our solutions.These webinar recordings are now available for you to view on-demand.

This webinar series introduces ways to optimize performance in a refinery. The following webinars address two major issues in today’s refineries.

Yield Accounting Infographic


Invensys Yield Accounting Solution


Guest Blogger: Kaylen McMullen, Marketing Assistant, Invensys Operations Management
 
 
 
About Yield Accounting: The Yield Accounting solution from Invensys addresses one of the most stressing issues of a refinery, petrochemical plant, or other processing facility: unaccounted losses. This solution improves the efficiency in a facility with data reconciliation, which finds errors in raw plant data and closes the mass balance and production accounting, which allows the plant to better account for feedstock and products. Material tracking and product yield tracking account for inventory and pinpoint losses.
Technical Support: As always, feel free to reach out to your local technical support team for more information.

Tuesday, March 26, 2013

From Hydrocarbon Processing: Saudi Arabia to begin drilling for shale gas this year

Saudi Arabia, the world's largest exporter of crude oil, will push ahead this year with exploratory drilling of shale and other unconventional gas reserves which could be twice the size of its conventional gas reserves, which total 286 trillion cubic feet, Minister of Oil Ali al-Naimi said.

Coming soon: PRO/II 9.2, DYNSIM 5.1 & ROMeo 6.1

PRO/II 9.2, PIPEPHASE 9.6, DYNSIM 5.1, and ROMeo 6.1 are set to be released in April 2013! Get ready for some new features.

Monday, March 25, 2013

Current SimSci-Esscor Software Versions

I figured it would be valuable to provide you with the most up-to-date versions of our software

What is relative tolerance vs. absolute tolerance?

What is relative tolerance vs. absolute tolerance?

Thursday, March 21, 2013

Changing the Plot Setup in PRO/II

The default format for plots in PRO/II is SimSci format. Apart from this the user has two more options for plotting streams or unit-operation results which are Excel and GNU Plot.

Wednesday, March 20, 2013

Dynamic Simulation, by Salt River Project's Ron Cisco at ARC World Industry Forum 2013

Dynamic Simulation, by Salt River Project's Ron Cisco at ARC World Industry Forum 2013
This is a great video of Ron Cisco's presentation at the ARC Forum. Check out the video below:

What are the Flash Point Calculation Methods?

This is a question commonly asked of Technical Support - so i figured we would post the answer here to help those that don't want to contact Technical Support. 

Flash point - The minimum temperature at which a liquid gives off a vapor in sufficient concentration to ignite when tested by the following methods:

Tuesday, March 19, 2013

Breaking through Heavy Oil Barriers


Have you checked out our page on heavy oil processing? SimSci-Esscor is pretty advanced with heavy oils.

Download the free brochure that gives more details.

Also, there is a free white paper available. It should be up on the site this week, but if you email me directly, I will email you a copy.



What are the common problems with using multiple thermo methods in a flowsheet?


This is a question commonly asked of Technical Support - so i figured we would post the answer here to help those that don't want to contact Technical Support. 

The use of multiple K-value sets within a flowsheet will not usually create serious discontinuities; however, the use of multiple enthalpy methods can cause serious discontinuities and erroneous results if not properly handled. 



For  example, both the SRK and Curl-Pitzer methods are based on deviations from ideal gas values.  However, they predict different enthalpy values for a mixture at any given temperature and pressure.  Thus an adiabatic flash using the SRK method predicts an incorrect temperature value for a feed stream with a Curl-Pitzer enthalpy.



Therefore, when it is desired to feed a process stream to a unit operation for which a different enthalpy method is to be used, it is recommended that the stream enthalpy first be reset.  This may be accomplished with an isothermal, dew point, or bubble point flash (as is appropriate) using the new enthalpy method.  This will reset the enthalpy to the new base and avoid the introduction of discontinuities.



For more information on multiple thermodynamic sets see Section 20.5 of the PRO/II Keyword Input Manual.




About PRO/II: PRO/II is the major product in the Process Engineering Suite (PES). This process simulation software optimizes plant performance by improving process design, operational analysis, and performing engineering studies. It is designed to perform rigorous heat and material balance calculations for a wide range of chemical processes. PRO/II allows users to evaluate the use of heat integration with case studies, rigorously evaluate process improvements with the help of a process flow diagram (PFD), or model crude distillation units. PRO/II offers a wide variety of thermodynamic models to virtually every industry and is incredibly cost effective, decreasing both capital and operating costs.
Technical Support: As always, feel free to reach out to your local technical support team for more information.

 

Monday, March 18, 2013

Invensys Hospitality Suite TONIGHT at AFPM: Be Sure to Join us!

Invensys Hospitality Suite at AFPM: Be Sure to Join us!

Do You Know About Wonderware's Software Asset Manager?

Do You Know About Wonderware's Software Asset Manager?

Dynamic Simulation, by Salt River Project's Ron Cisco at ARC World Industry Forum 2013

Dynamic Simulation, by Salt River Project's Ron Cisco at ARC World Industry Forum 2013 
This is a great video of Ron Cisco's presentation at the ARC Forum. Check out the video below:

General guideline to select the correct Thermo method

The below guideline can be used for selecting the right thermo method. To know more about the various thermo methods in PRO/II one can look-up in the Thermodynamics reference manual. If PRO/II is installed this reference manual can be found under Start > All Programs > SimSci > PRO/II > PRO/II Documentation > Thermodynamic Keyword Manual. This manual can also be found under C:\SimSci\PROII91\Manuals.


EOS:       Equation of State method
LACT:     Liquid Activity method

Invensys Hospitality Suite Tonight at AFPM



Sunday, March 17, 2013

Happy St. Patrick's Day

Happy St. Patrick's Day everyone!

Saturday, March 16, 2013

When should the shortcut column be used? What information is obtained?

The shortcut model is used to determine the number of equilibrium stages required at infinite reflux to accomplish a desired separation using the Fenske method.  This method assumes that the relative volatilities for the components are constant throughout the column or a column section.  This is a poor assumption for non-ideal systems particularly those modeled with LACT thermodynamics.  However, this is a reasonable assumption for hydrocarbon systems which are modeled by EOS thermodynamics.  Thus, for such systems useful information about the component splits may be obtained.  For two product columns, the shortcut method can compute minimum reflux at infinite trays using the Underwood method.  The Fenske and Underwood results are interpolated with the Gilliland relationship to produce a table of equilibrium trays versus reflux ratio for a practical operating range.  This feature is very useful in the early design stages for hydrocarbon systems because it helps the user determine the number of theoretical trays for the desired separation and estimates of the product molar flowrates for simulation of a rigorous distillation column model.



About PRO/II: PRO/II is the major product in the Process Engineering Suite (PES). This process simulation software optimizes plant performance by improving process design, operational analysis, and performing engineering studies. It is designed to perform rigorous heat and material balance calculations for a wide range of chemical processes. PRO/II allows users to evaluate the use of heat integration with case studies, rigorously evaluate process improvements with the help of a process flow diagram (PFD), or model crude distillation units. PRO/II offers a wide variety of thermodynamic models to virtually every industry and is incredibly cost effective, decreasing both capital and operating costs.
Technical Support: As always, feel free to reach out to your local technical support team for more information.

Friday, March 15, 2013

What is the difference between MODEL=REFINE and CONVENTIONAL in the shortcut column?

These are the two shortcut models in PRO/II.  Both treat the separation of a feed into a group of products as a series of one feed-two product columns.

The CONVENTIONAL model assumes that the series of interlinked two product columns are connected by reflux.  This model is most useful for column design and analysis of columns with one feed and two products because for this configuration if the light and heavy keys are specified, many additional calculations will be performed such as minimum reflux, feed tray location, reboiler duty, condenser duty, and the reflux vs. trays curve.

The REFINE model assumes that there is no reflux between the individual column sections.  This is a good assumption for refinery multi-draw columns with total or nearly total liquid draws.

From DownstreamToday:Cheap Oil to the Rescue, Economist Predicts


DENVER (MarketWatch) -- Economist Robert Z. Aliber didn't hedge his prediction on what a barrel of oil will cost one year from today.

“It will be at $56.65,” he declared, down sharply from its current level of about $90.

Read the full article here

Do you see this happening? How do you think it will affect the economy?

How do I set up a column spec or variable that requires a mathematical operator?

How do I set up a column spec or variable that requires a mathematical operator in PRO/II?
Although not very large or intuitive, notice that the "=" sign is green (which means default).  The default operator is equal, but clicking on it reveals a plethora of other mathematical operators.  Note also that the = sign is underlined.  An underline means that there is more information below. Clicking on the "=" sign will allow you to choose other mathmatical operators.




About PRO/II: PRO/II is the major product in the Process Engineering Suite (PES). This process simulation software optimizes plant performance by improving process design, operational analysis, and performing engineering studies. It is designed to perform rigorous heat and material balance calculations for a wide range of chemical processes. PRO/II allows users to evaluate the use of heat integration with case studies, rigorously evaluate process improvements with the help of a process flow diagram (PFD), or model crude distillation units. PRO/II offers a wide variety of thermodynamic models to virtually every industry and is incredibly cost effective, decreasing both capital and operating costs.
Technical Support: As always, feel free to reach out to your local technical support team for more information.

Thursday, March 14, 2013

My first blog post - 9/27/2011 - CSAPR and APC


Funny - I know that CSAPR regulation has been stuck in the court system for quite a while - is it still relevant? Regardless, isn't reducing emissions anyways the responsible thing to do?


Invensys has an answer with APC
A recent ruling by the EPA, The Cross State Air Pollution Rule (CSAPR),which went into effect in July of 2011 mandates that power producers achieve much stricter emissions of pollutants such as NOx, SOx, etc.  As a result of this requirement 27 states, mostly east of the Mississippi, are affected.  Power producers in the affected areas are required to reduce their emissions of NOx, SOx, and other components beginning in 2012.

Invensys Hospitality Suite at AFPM: Be Sure to Join us!



What are the differences between the three tray efficiency methods? Which is easiest to use?

The three tray efficiency models are Murphree, Vaporization, and Equilibrium.  The easiest to use is vaporization.

Vaporization efficiency is a multiplier applied to the equilibrium K-values.

Murphree efficiency is defined in textbooks and some values may be available in the literature.

Equilibrium efficiency is a combination of vaporization and Murphree.




About PRO/II: PRO/II is the major product in the Process Engineering Suite (PES). This process simulation software optimizes plant performance by improving process design, operational analysis, and performing engineering studies. It is designed to perform rigorous heat and material balance calculations for a wide range of chemical processes. PRO/II allows users to evaluate the use of heat integration with case studies, rigorously evaluate process improvements with the help of a process flow diagram (PFD), or model crude distillation units. PRO/II offers a wide variety of thermodynamic models to virtually every industry and is incredibly cost effective, decreasing both capital and operating costs.
Technical Support: As always, feel free to reach out to your local technical support team for more information.

Wednesday, March 13, 2013

Are there any more questions on distillation in SimSci-Esscor Simulation software?

We will still have answers to commonly asked questions this week, but please let me know if you have any specific questions?

Here are the answers to your distillation questions

Hi Rosmer, Here are the answers to the questions from your comment the other day. Thank you for your questions, and please check back this week for more tips on the blog. If you, or anyone has any other questions, please let me know.

What are the major differences between the rigorous distillation column algorithms?

Table 2.4.1-1 of the Reference Manual gives an overview of the features of each algorithm.

The SURE algorithm employs a Newton-Raphson technique which uses a matrix-partitioning method developed by SimSci.  It can perform both VLE and rigorous VLLE calculations.  This algorithm is PRO/II's most generally applicable distillation algorithm.  For instance, it can be used to solve hydrocarbon/water systems where liquid hydrocarbon and water form on trays other  than the condenser.  Water can be decanted off any tray on up to four trays, and SURE is the only algorithm which can be used to simulate columns with either total liquid pump-arounds or total vapor by-passes.  However,  SURE is limited by its sensitivity to initial conditions and slow computation times when compared to the other algorithms (IO and CHEMDIST).  SURE also handles columns with side-strippers with recycle logic that increases computing time and limits the type of product specifications that can be used as compared to the IO algorithm.

The IO algorithm employs a solution technique based on partitioning the column into two loops, an inner loop and an outer loop.  In the inner loop, the heat, material, and design specifications are solved based on simplified thermodynamic models for the enthalpies and K-values.  In the outer loop, rigorous thermodynamic calculations are performed and  the simplified models are updated based on the new compositions.  For closure of the outer loop and solution of the column, the thermodynamic calculations must match in both loops.

The IO algorithm is very efficient for hydrocarbon systems and mildly non-ideal chemical systems.  Problems may result with systems with  highly non-ideal thermodynamics because the simplified models used in the inner loop may not allow closure of the outer loop.  The most unique feature of the IO algorithm is how it merges complex columns with side-strippers into one matrix.  This results in faster solutions and does not limit the type of specifications that can be used for the overall system.  Also the IO algorithm is less sensitive to initial conditions than the SURE algorithm.  However the IO algorithm is limited to VLE calculations only with the exception that it can decant water at the condenser.

The CHEMDIST algorithm is a SimSci developed technique which employs a full Newton-Raphson method with complete analytic derivatives.  It was designed to solve highly non-ideal chemical systems and allows two liquid phases to form on any tray in the column.  CHEMDIST supports several special condenser/reflux options for two liquid phase systems, as well as reactive distillation.  However, the algorithm is limited in that it does not support side strippers or pump-arounds, although sidestrippers could be modelled as multiple columns in recycle.  Also there appears to be some restriction on the size of column that can be solved in terms of number of components and number of trays, but this varies with the hardware platform's buffer size and has not been absolutely quantified.




About PRO/II: PRO/II is the major product in the Process Engineering Suite (PES). This process simulation software optimizes plant performance by improving process design, operational analysis, and performing engineering studies. It is designed to perform rigorous heat and material balance calculations for a wide range of chemical processes. PRO/II allows users to evaluate the use of heat integration with case studies, rigorously evaluate process improvements with the help of a process flow diagram (PFD), or model crude distillation units. PRO/II offers a wide variety of thermodynamic models to virtually every industry and is incredibly cost effective, decreasing both capital and operating costs.
Technical Support: As always, feel free to reach out to your local technical support team for more information.

Tuesday, March 12, 2013

White Paper Sneak Preview: Processing Heavy and Extra Heavy Oils

Processing Heavy and Extra Heavy Oils
Problems and Solutions

Author: Joseph McMullen, Product Marketing Manager, SimSci-Esscor


1. Introduction
The world’s energy industry has followed the availability of easily attainable and economically feasible supplies for the oil segment that has moved towards heavier feedstock. The earlier extraction, accessibility, transport and processing centered around lighter crudes with characteristics that could be uniformly and reliably processed in refineries using a stable of proven technologies is no longer possible. As those lighter crude supplies have become exhausted or more difficult to obtain, demand from emerging nations such as India and China has strained the supply chain. Because of their explosive growth, these and other countries experiencing economic growth are usurping an increasing amount of the existing supply of conventional crudes while investing in supplies of heavier sources as well. Heavier crudes have unique physical properties that often present costly refining challenges. Efficient processing solutions require a thorough understanding of the crude’s characteristics and operating behavior. Those involved in heavy or extra heavy oil refining must decide what they have and how they should process it.

If you want to read the whole paper - just email me before Friday 3/15 and I will send you a copy.
After Friday, it will be available on our promotional website.

What are the differences between the Initial Estimate Generators (IEG) (CONV, REFI, SIMP, CHEM) ?

Initial conditions in terms of temperature and vapor or liquid molar flowrate profiles may be provided directly by the user or may be generated internally by the PRO/II initial estimate generator (IEG).  Four different models are available for the IEG.

SIMPLE - The vapor rates are calculated from simple mass balance.  Temperatures are determined by estimating the product compositions and determining the bubble points or dew points as appropriate.  The resulting profiles are linear.

CONVENTIONAL - Uses the Fenske shortcut model for conventional columns or flash for absorber/strippers.  This method is the most general and generally applicable IEG, and is recommended for most two product distillation problems.  CONV will use product specifications (if applicable to shorcut model) and/or product rates to get a Fenske model for initial profiles.

REFINE - Uses the Fenske shortcut model for multiproduct separations normally found in refinery units like crude units and FCC main fractionators.  REFI will use product specifications  (if applicable to shorcut model) and/or product rates to get a Fenske model for initial profiles.

CHEMICAL - Uses a multiflash technique (series of L/F flashes up and down colum) to bring the temperature, flow, and composition profiles closer to the final solution before the column algorithm takes over.  This method is CPU intensive and is recommended for difficult, highly non-ideal distillation problems.






About PRO/II: PRO/II is the major product in the Process Engineering Suite (PES). This process simulation software optimizes plant performance by improving process design, operational analysis, and performing engineering studies. It is designed to perform rigorous heat and material balance calculations for a wide range of chemical processes. PRO/II allows users to evaluate the use of heat integration with case studies, rigorously evaluate process improvements with the help of a process flow diagram (PFD), or model crude distillation units. PRO/II offers a wide variety of thermodynamic models to virtually every industry and is incredibly cost effective, decreasing both capital and operating costs.
Technical Support: As always, feel free to reach out to your local technical support team for more information.

Monday, March 11, 2013

PROII Mini-Guides - Changing Plot Options.mp4

Great video on changing plot options in PRO/II

This time with the link. Sorry everyone.



About PRO/II: PRO/II is the major product in the Process Engineering Suite (PES). This process simulation software optimizes plant performance by improving process design, operational analysis, and performing engineering studies. It is designed to perform rigorous heat and material balance calculations for a wide range of chemical processes. PRO/II allows users to evaluate the use of heat integration with case studies, rigorously evaluate process improvements with the help of a process flow diagram (PFD), or model crude distillation units. PRO/II offers a wide variety of thermodynamic models to virtually every industry and is incredibly cost effective, decreasing both capital and operating costs.
Technical Support: As always, feel free to reach out to your local technical support team for more information.

From Hydrocarbon Processing: US ethanol mandate puts squeeze on oil refiners


Read the full article here on HydrocarbonProcessing.com
The cost of complying with a federal mandate to use corn ethanol in fuel has risen sharply in the past few months, putting a squeeze on oil refiners.
The price of each credit that refiners need under the law topped $1.00 last Friday, up from just a few cents last year.
"Eventually that cost is going to get passed along," said Bill Day, a spokesman for Valero Energy, which sells gasoline to about 5,000 filling stations in the US. 

Read the full article here on HydrocarbonProcessing.com

What is ALPHA in distillation column algorithms?

In the IO column, ALPHA is reported for each iteration in the inner loop calculations.  ALPHA is the multiplier used to modify the stripping factors (shortcut thermo) for the next inner loop calculation, and can be either positive or negative.  A value of ALPHA equal to 1.00 indicates that the enthalpy balances and product specifications are converging well in the inner loop.

Sunday, March 10, 2013

Which column algorithm should I use for my application?

If a feature unique to a particular algorithm is needed (e.g., total liquid pump-arounds) then use that algorithm (e.g., SURE) otherwise use the following criteria.

For most systems, it is recommended that the IO algorithm be used.  When more than one algorithm can be used to solve a problem, the IO algorithm will usually converge the fastest.  It requires the least accuracy in initial conditions and can be used to solve most refinery problems, especially complex columns with side strippers.  The IO algorithm can also solve many mildly non-ideal chemical systems and when possible should be the first choice for systems with a single liquid phase.  If the inner loop solves but the outer loop will not close then switch to CHEMDIST.

CHEMDIST is recommended for  highly non-ideal chemical systems (e.g., azeotropic, extractive, and reactive distillation columns) and systems which require rigorous VLLE calculations other than hydrocarbon/water systems which can be handled better with the SURE algorithm.

The SURE algorithm is the most general algorithm in PRO/II and has several features not available in either IO or CHEMDIST as discussed in question 1.  Its limitations are speed and sensitivity to initial conditions, while its strengths are in solving hydrocarbon systems where water must be decanted at locations other than the condenser; columns which have total liquid pump-arounds and total vapor bypasses; and its capability to perform rigorous VLLE calculations when needed (e.g., at the condenser).





About PRO/II: PRO/II is the major product in the Process Engineering Suite (PES). This process simulation software optimizes plant performance by improving process design, operational analysis, and performing engineering studies. It is designed to perform rigorous heat and material balance calculations for a wide range of chemical processes. PRO/II allows users to evaluate the use of heat integration with case studies, rigorously evaluate process improvements with the help of a process flow diagram (PFD), or model crude distillation units. PRO/II offers a wide variety of thermodynamic models to virtually every industry and is incredibly cost effective, decreasing both capital and operating costs.
Technical Support: As always, feel free to reach out to your local technical support team for more information.

Friday, March 8, 2013

Feature Highlight 27: Generating TEMA datasheet for heat exchangers in HEXTRAN

 Generating TEMA datasheet for heat exchangers in HEXTRAN

1.       Run and converge the heat exchanger model

2.       Click on the exchanger for which the TEMA datasheet is to be generated then go to Output and select TEMA Report. The report can be generated in either Excel or HTML format.





3.       A report as shown below gets generated.
SHELL AND TUBE EXCHANGER DATA SHEET
Exchanger Name
STE_1


Unit ID
STE_1


Size

83 - 300
Type
NEN
Vertical

Connected
1 Parallel, 1 Series

Area/Unit
8540
ft2
8593
ft2
Required
Area/Shell
8540
ft2


Performance of One Unit

Shell-Side
Tube-Side
Feed Stream Number


3



1



Feed Stream Name



3
4


1

2
Total Fluid


lb/hr


160000



350000







In
Out
In
Out

Vapor


lb/hr

0

0

157500

157500

Liquid


lb/hr

0

0

0

0

Steam


lb/hr

160000

160000
192500

192500

Water


lb/hr

0

0

0

0

Non-Condensible

lb/hr

0



0


Temperature


F

1500.0

1059.8

1000.0

1189.5
Pressure



psia

35.00

12.74

12.00

6.31
Sp. Gr.

Liquid

(60F/60F H2O)
0.000

0.000

0.000

0.000



Vapor

(60F/60F AIR)
0.631

0.631

0.992

0.992
Density

Liquid

lb/ft3

0.000

0.000

0.000

0.000



Vapor

lb/ft3

0.030

0.014

0.022

0.010
Viscosity

Liquid

cP

0.000

0.000

0.000

0.000



Vapor

cP

0.041

0.032

0.027

0.030
Thermal Cond.
Liquid

BTU/hr-ft-F
0.0000

0.0000

0.0000

0.0000



Vapor

BTU/hr-ft-F
0.0637

0.0443

0.0402

0.0481
Spec. Heat
Liquid

BTU/lb-F

0.0000

0.0000

0.0000

0.0000



Vapor

BTU/lb-F

0.5615

0.5206

0.5601

0.5862
Latent Heat


BTU/lb


0.00    


0.00    


Velocity



ft/sec


485.80


675.16


DP/Shell
(Des/Calc)

psi

20.00
22.26

10.00
5.69


Fouling Resistance

hr-ft2-F/BTU
0.00040
0.00010
Required
0.00150


Transfer Rate


BTU/hr-ft2-F
Service
29.10
Reqd.

29.28

Clean
30.98
Heat Exchanged

x 10^6 BTU/hr
38.060
MTD(Corrected)
152.2

FT
1.000
Construction of One Shell

Shell-Side
Tube-Side
Design Pressure / Temperature
psia / F


100 / 1600


75 / 1600
Number of Passes:




1



1

Material






INCOLOY


316 Stainless Steel
Inlet Nozzle ID / NO

in


41.2 / 1



41.2 / 1

Outlet Nozzle ID / NO

in


41.2 / 1



41.2 / 1

Tube:

Number
745
OD
1.750
in
BWG
10

Length
25.0
ft



Type
Bare

Pitch
2.2
in
Pattern
Triangular - 30 Degrees
Fins:

Number
N/A

Root OD
N/A

Height
N/A






Thickness
N/A

Efficiency
N/A






Shell:

ID
83.00
in

Sealing Strips
0
Pairs
No Tube in Window (NTIW)
Baffle:

Cut
0.245


Spacing (in) (In/Cent/Out)
36.24 / 31.65 / 36.24
Single Segmental
RHO-V2:

Inlet Nozzle
763.6
lb/ft/sec2






Total Weight/Shell
lb
21669.3

Full of Water
115449.4


Bundle
40655.7