engineering_art__rev1.xls

Suppose I want to draw a Heat Exchanger. The following are the steps and the methods I employ in Excel.Make sure that the Excel Drawing Toolbar is inserted into your worksheet. You do this by clicking on View - Toolbars and checking the box next to "Drawing".

Select the rectangle object in the Drawing toolbar and draw:

Next, select the oval object and draw:

Select both objects and make the Line Style thicker (2-1/4 points):

Draw two more rectangles (& make them thicker):

Join the two small rectangles, select the arrowhead pointer and draw an imaginary rectangle around the two; then click "Draw" & "Group". The two rectangles are now one.

Select the grouped rectangles and make a copy, placing them at the big rectangles ends:

Now, copy the oval (ellipsoid) and place the resulting two objects on each end of the large rectangle:

Select each ellipsoid and then "Draw" - "Order" - "Send to Back"; move the objects so they align with the "shell" of the heat exchanger. Note: to facilitate this close work, you can amplify the view by making the spreadsheet either 200% or 400% bigger.

Now draw a rectangle and make a copy of it also; zoom up to 200%;

Move the rectangles over the vertical seam on the two elliptical heads and position them so that they cover each vertical seam. Size them so that they fit just over the seam. Now with each rectangle selected, click on Format -Autoshape - colors and lines - no line. This will make the rectangles invisible if they are ordered to the front of the object - which is normal.

Now you can make the nozzles and baffles to finish the object by drawing rectangle:

Form the nozzle with flange and hide the bottom line; place the baffle rectangle and select the dash style line.

Make copies of the flanged nozzle and place them where needed; you can rotate or orient the nozzles.You should "Group" your finished object so that you can move or copy it when needed.

Another neat thing that can be done in Excel Engineering sketches is that a liquid content can be easily depicted.For example, draw a storage tank:

Draw an isosceles triangle

Draw a rectangle

Join them together

Draw another rectangle (or copy the one above) and make it a lighter line; insert it at the bottom of the larger rectangle. You can use the "nudge" feature on the Draw menu to precisely position the piece where you want it.You can also use the "Zoom" feature to see the line detail better.

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Now use the object "Fill" feature (after selecting the small object)and select a color to fill in the object.

You can also fill in curved or odd-shaped objects by creating a closed object with the "freeform" line feature:

Draw the vessel object as you want - 1- large rectangle1- ellipsoid sent to the back2 - small rectangles with "no lines" and put "forward"

Now, select the freeform line from Autoshapes - Lines and draw the contents of the bottom of the tank in the form of an object:

Don't fret if you don't get the hang of it at the first attempt. No one does. You have to have practice.You also have to know that there is no way you can control your pulse to draw a perfectly curved line.Don't worry. Excel knows this and gives you the "edit points" feature which you bring up byright-clicking on the object and selecting the "edit points" feature. This allows you to "cheat" by pinching in the points given on the objects periphery and adjusting them so that they fit the curved portion that you want to outline. With enough practice, you can do this pretty decently. Don't forget to use the "Zoom" feature and do your point pinching with the object amplified so that you can clearly see what you are doing.

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Also, know that when you hold the shift key and click while drawing the freeform line, you draw a perfectly straight line. It's when you don't press any key and draw the line that you "freeform".

Another good technique that you can use to make things easier is to make your objects "oversized" and then simply reduce them by "squeezing-in" the outer boundaries of the objects after you select them - like the following:

Let's draw a distillation tower:

Now copy the previously constructed nozzles:

Locate the nozzles on the vessel as needed.

Now any seams or other lines that are not needed can be "hidden" by overlaying a rectangle that has no lines to it. The "Order" of the objects is the trick to hiding lines or parts of objects you don't need.

Simple Valve symbols are made by selecting Autoshapes and Basic Shapes such as the equilateral triangle:

This is copied and re-aligned to form:

To this you can add other objects and lines to produce:

Gate Valve

Now, select the freeform line from Autoshapes - Lines and draw the contents of the bottom of the tank in the form of an object:

Now any seams or other lines that are not needed can be "hidden" by overlaying a rectangle that has no lines

Atmospheric,Open Tank

100"

3 ft

Gasoline @ 100 oF

Atmospheric,Open Tank

900"

water @ 100 oF

10 ft

3 ft

Friction = 0.2 psia

Art Montemayor Eden Yuturi Oil Recovery February 25, 2002Rev: 0

of 37 FileName: document.xlsWorkSheet: Crude Steam Heater

The Crude heater dimensions are based on a 44" diameter U-tube steam bundle, fabricated with 20' long, standard 1" OD condenser tubes

The steam tube bundle would have approximately 220 hair pins, with an external heat transfer area of

Major Equipment Capital cost estimatesQuantiy Description Cost

Two 400 HP, packaged steam boilers; complete with combustion $700,000controls, skid-mounted and dual-fired burners

Two Steam-heated Crude heaters; complete with stainless steel steam $400,000bundles, level controls and structural supports; internally coated

Features of a Steam-heated Crude Unit:

Conventional, well-defined and existing technology; simpleto operate and maintain; negligible corrosion w/ closed, gravity-return steam condensate cycle.

Estimated as less than a direct-fired heater

On-the-shelf, proven design and hardware; packaged boilersare frequently available as stock items; delivery and installationare commonly handled in a minimal of time as compared to custom-designed, engineered, fired equipment

Crude oil firing instead of associated gas represents 0.2% of total crude production; however, unit can also fire gas when available.

Steam heater is inherently safe; no fired hazard, no corrosion,

approximately 1,250 ft2. This amount of area yields a conservative heat flux of 8,770 Btu/hr - ft2

Engineering design and operability:

Overall Capital Cost:

Availability and time to install:

Operating Cost:

Others:

11,000 lb/hr of steam Condensate

11,000 lb/hr of 35 psig Steam

4,248 lb/hr Flash Vapor

351,950 lb/hr Warm Crude Oil

334,120 lb/hr hot Crude Oil

13,582 lb/hr hot water

48"

84"

15'



no errosion; fired boiler can be sited away from process area;

Art Montemayor MTBE Reactor July 20, 2002Revision: 2(09-12-03)

of 37 FileName: document.xlsWorkSheet: Reactor Tubular

Motor Electrico

Corte A - A

A A

Motor Electrico de velocidad variable

Estos son los tubos verticales que son soldados a ambos espejos (tubesheets) y que forman las camaras para el relleno de catalizador. Yo sugiero que sean fabricados de acero inoxidable para mayor duracion y resistencia contra oxidacion. Los espejos pueden ser de acero dulce.

La introduccion de la materia prima puede ser por parte de encima o por debajo; se prefiere la primera para que no se levante o se mueva la camara de catalizador dentro los tubos.

Este es el espejo superior; es soldado a la carcaza, o cuerpo cilindrico, igual que el espejo inferior. Los espejos tambien funcionan como bridas para sujectar los cabezales.



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Esta bomba es de tipo axial con caracteristicas de alta capacidad con poco cabezal. Un serpentin con agua de enfriamiento esta colocado dentro la carcasa de la bomba, y remueve el calor de la reaccion exotermica mientras la bomba circula aceite en circuito cerrado.

El reactor funciona practicamente lleno de aceite especial dentro la carcaza, entre el cuerpo cilindrico y los tubos, para lograr transferencia de calor. Este aceite protege la superficie de los tubos tanto como la de la carcasa, evitando su oxidacion. Si ocurre rotura de tubos, esto no presenta peligro o danyo a la operacion ya que si los quimicos entran a la carcasa, alli paran y no hay derrame. Si ocurre lo contrario y el aceite entra al proceso, tambien no presenta peligro. Todo lo que ocurre en ambos casos es que se contamina el proceso, cosa que no se considera mayor problema comparandose con un derrame, contaminacion del ambiente, o peor, contaminacion del personal.

Este es el espejo superior; es soldado a la carcaza, o cuerpo cilindrico, igual que el espejo inferior. Los espejos tambien funcionan como bridas para sujectar los cabezales.

Esta es una vista de un tubo tipico dentro de la carcaza. Cada uno de estos tubos esta lleno de catalizador. Los tubos son soldados a sus espejos.

Este es uno de los varios deflectores ("baffles") que se emplean para aumentar el recorrido del flujo de aceite tanto como para aumentar el numero Reynolds tambien.



Motor Electrico

Agua de enfriamiento

Motor Electrico de velocidad variable

Estos son los tubos verticales que son soldados a ambos espejos (tubesheets) y que forman las camaras para el relleno de catalizador. Yo sugiero que sean fabricados de acero inoxidable para mayor duracion y resistencia contra oxidacion. Los espejos pueden ser de acero dulce.




Esta bomba es de tipo axial con caracteristicas de alta capacidad con poco cabezal. Un serpentin con agua de enfriamiento esta colocado dentro la carcasa de la bomba, y remueve el calor de la reaccion exotermica mientras la bomba circula aceite en circuito cerrado.

El reactor funciona practicamente lleno de aceite especial dentro la carcaza, entre el cuerpo cilindrico y los tubos, para lograr transferencia de calor. Este aceite protege la superficie de los tubos tanto como la de la carcasa, evitando su oxidacion. Si ocurre rotura de tubos, esto no presenta peligro o danyo a la operacion ya que si los quimicos entran a la carcasa, alli paran y no hay derrame. Si ocurre lo contrario y el aceite entra al proceso, tambien no presenta peligro. Todo lo que ocurre en ambos casos es que se contamina el proceso, cosa que no se considera mayor problema comparandose con un derrame, contaminacion del ambiente, o peor, contaminacion del personal.

El agua que se usa para enfriar el aceite proviene de una torre de enfriamiento y se introduce a un serpentin que se encuentra dentro el cuerpo de la bomba. Entre mas veloz corre la bomba, mayor va ser su numero de Reynolds y la transferencia de calor. La temperatura del reactor se controla con la velocidad de la bomba de aceite.



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Art MontemayorPara Javier Serradilla

Javier's MTBE ProjectDiagrama de Flujo Simplificado

16 Septiembre 2002Rev: 0

Pagina 25 de 37 FileName: document.xlsWorkSheet: Diagrama de Flujo

Nomenclatura recomendada:

T = Tanque de AlmacenamientoC = Columna de distilacion o de LavadoB = BombaI = Intercambiador de calorR = ReactorV = Vasija

T - 1

T - 2

Torre Lavadora T-2Rellena con empaquePresion de operacion = 5 a 15 psig

Ag

ua d

e la

vado

R - 1 R - 2

E - 3

E - 4

E - 5

D - 1

E - 2

V - 1

P - 1

P - 2

P - 4

Agua de Enfriamiento

Vapor

Cond.

Vapor

Cond.


PC

PT

E - 9

LC LC

V - 2 LC

LC

P-9


E - 11

E - 10

Art MontemayorPara Javier Serradilla

Javier's MTBE ProjectDiagrama de Flujo Simplificado

16 Septiembre 2002Rev: 0

Pagina 26 de 37 FileName: document.xlsWorkSheet: Diagrama de Flujo

T - 3

Ag

ua d

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vado

E - 6

E - 7

D - 3

V - 5

V - 3

MTBE Producto

P - 5

P - 6

P - 7

Vapor

Cond.

E - 8


C4's a recuperacion

LC

LC

E - 10

T-400

V-300

V-640

Feed

Reflux

Bo

ttom

s

Vapor

Va

por

V-120

PC

V-190

PC

Process Tank

Relief Valve

Block Valve

Vessel Crack

Vessel Hole

Flanged Connection

Pump Body & seals

Severed or Ruptured Pipe

Figure 4-1 Various types of limited aperture releases

CENTRIFUGAL PUMP

HEAT EXCHANGER

Closed Tank

3 ft

Gasoline @ 100 oF

Art Montemayor Acid Egg Type Transfer Vessel March 12, 1998Rev: 0

Electronic FileName: document.xlsWorkSheet: Acid Egg

Nozzle Schedule:Tag Size, in. Type Service

A 1-1/2 RF Flange FillB 3/4 Coupling OutletC 3/4 Coupling N2 pressureD 3/4 Coupling Drain

Material of Construction:

8" Pipe Caps 316 ELC8" Sch 10s Pipe 316 ELC

Design Pressure 150 psig

Design Temperature

Volume of pipe section = 1307.64 in3Volume of pipe caps = 344.13 in3Total vessel volume = 1651.76 in3 = 7.15 Gallons

100 oF 24" T/T

8.329" ID

A

B

C

D 12"

Reflex level weld pad

1/2" internal pipe

This design was used to build an inhibitor at a Chemical Plant.

70 psig Nitrogen was used as the pneumatic force to send inhibitor to the RunDown Tanks prior to pumping the product to storage.

Art Montemayor

Arthur Montemayor Produccion de Pepitas de Hielo Seco August 21, 1998Rev: 0

Electronic FileName: document.xlsWorkSheet: Planta de Hielo Seco

CO2 Liquido

Compresor de CO2

Pepitas de Hielo Seco


Agua tibia

Amoniaco - 2a etapa Amoniaco - 1a etapa

Condensador de Amoniaco

Condensador de CO2

Amoniaco Licuado

Arthur Montemayor Produccion de Pepitas de Hielo Seco August 21, 1998Rev: 0

Electronic FileName: document.xlsWorkSheet: Planta de Hielo Seco

Elbow & 180 Returns

Grid = 12.75 high x 1.71 wide

Long Radius (1.5) 90o Elbow

180o Long Radius Return

Short Radius (1.0) 90o Elbow 180o Short

Radius Return

engineering_art__rev1.xls

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