Dec 262017
 
A small hydraulic design tool dealing with pipes, pumps, valves, outlets, etc. A demo version, but works.
File HYDROFLO.ZIP from The Programmer’s Corner in
Category Science and Education
A small hydraulic design tool dealing with pipes, pumps, valves, outlets, etc. A demo version, but works.
File Name File Size Zip Size Zip Type
DEMO.BAT 9 9 stored
DEMO.DOC 31939 9902 deflated
DEMO1.EXE 140772 57777 deflated
DEMO1.FLO 940 314 deflated
DEMO2.FLO 1096 291 deflated
FILES942.TXT 1648 863 deflated
GO.BAT 38 36 deflated
GO.TXT 540 161 deflated
HF.FIT 3823 1075 deflated
HF.HLP 72000 7888 deflated

Download File HYDROFLO.ZIP Here

Contents of the DEMO.DOC file



A letter to interested parties...


Dear Engineer,

On this disk or residing in this directory is a demo version and
instructions with 2 examples from Engineering Software's HYDROFLO.
It performs the functions of a hydraulic system calculator and runs
on the IBM PC and the related family of PC/MS-DOS microcomputers.
We are excited about this software because there are no comparable
packages on the market today in terms of its capabilities and price.

The design engineer essentially works in a worksheet type
environment, analyzing hydraulic elements and observing the bottom
line effects. HYDROFLO's extensive flexibility starts with the fact
that calculations can be performed in English or metric units and
use any type of fluid. All of Engineering Software's packages have
this basic capability. The full featured version includes the
UTILITY functions where with a single command the entire system's
diameter or friction can be changed to a new value and the system's
new operating point and pump specification be determined.

The engineer can specify that a pump be prescribed for a system
to meet a specified flow. Cavitation calculations are made and
reports detailing the system's head losses for various flows are
provided. This demo is a working version in that your own hydraulic
calculations can be performed and verified. It is a good way to
evaluate HYDROFLO risk free. Full screen graphics of the system
and pump operation are accessible along with the full functions
in the REPORT option.

The full featured version costs $195 and includes a User's Guide
with numerous examples and a hydraulic reference handbook. Tele-
phone support is available at no cost to registered users. Thank
you for your interest in our products.


If you still do your pump and pipeline designs with paper and pencil...
you need HYDROFLO!

HYDROFLO is hydraulic design software for the IBM PC/XT/AT and compatibles
that substantially reduces the time involved in the design of pump and
piping systems. HYDROFLO...

- Will analyze systems using ANY type of fluid.
- Can use differing units of head and flow within the English or metric
systems.
- Specifies the pump needed for any any design.
- Can determine possible cavitation situations.
- Provides graphics output of pump and system curves to screen and printer.
- Has a full help facility available anywhere in the program.
- Uses the Lotus 123 type menu interface.
- Has large-scale editing of system element diameters and friction.
- Automatically uses fitting and valve friction coefficients from menus.
- Uses math co-processor if available.
- Provides each user with their own configuration at start-up.


All these time savers for only $195
(includes User's Guide with examples and hydraulic reference handbook)


In a matter of minutes an engineer can layout and analyze a system and
store the work in a compact database. Runs on any PC/MS-DOS compatible
microcomputer and comes with a 30 day money back guarantee. Developed and
written by engineers in compiled "C" code for speed of execution. A demo
disk is available on request.
____________________________________________________________________________________________

ORDER FORM

Name: ____________________________________ Title: __________________________

Firm: ____________________________________ Phone: __________________________

Address: ____________________________________________________________________

City, St, Zip: ______________________________________________________________


Quantity
_____ HYDROFLOs at $195 (US) ______

California residents add 6% ______

Outside US add $10 airmail ______

Total ______


Check enclosed _____ or COD delivery _____


Make checks payable and mail to:

ENGINEERING SOFTWARE
P. O. Box 1450
Nevada City, California 95959
Phone (916) 288 - 3470




USING THE HYDROFLO DEMO


Provided here is enough information for the user to run the demo
problems successfully. Much more information is found in the USER'S GUIDE
included with the full featured version of HYDROFLO.

To start the demo, simply place the demo disk in floppy drive A:,
type A:DEMO and the program will load. The first prompt asks for
the type of display adapter you have in your system. This is to assure
that the correct type of graph is displayed in the REPORT GRAPH option
of HYDROFLO. You will then receive an opening screen displaying important
information and listing the name and address of a Engineering Software
dealer. Press RETURN and the HYDROFLO opening screen will be displayed.
The top line of the main HYDROFLO screen displays the HYDROFLO copyright
notice on the left and the current system filename on the right (if known).
The bottom line of the screen has the computer time and date on the left
and the right has an error space reserved for when errors occur during
system operation. The various keystrokes available as responses for any
HYDROFLO prompt is displayed on the line above the bottom line of the screen.


HYDROFLO uses the following Lotus-style menus and keystroke syntax.

To select an option from a displayed menu:

- Use the space bar or cursor arrows to hi-light the option
and press RETURN.
- or press the first character of the option name.

To exit from a lower menu or operation:

- Press the escape key (Esc).
(Note: pressing escape repeatedly will eventually
bring you back to the main menu but never let you
fully exit to DOS. You must press "Y" at QUIT).


A help facility is available by pressing the F1 (function) key anywhere
during program execution.


When entering characters or numbers a toggle between insert mode and
overtype mode is available by pressing the insert (Ins) key.





DESIGN METHODS


A general design methodology for using HYDROFLO follows:


1.) Enter the STATUS option and set the head loss equation, units,
fluid parameters, design flow and pressures.

2.) Enter the DEFINE option and enter all element data starting with
the inlet.

3.) When all data is entered, use the FILE - SAVE option to save
the current data. Perform file saves often so that work
is not lost.

4.) Use the ANALYZE option to identify any incomplete or inaccurate
data.

5.) Use the REPORT option to obtain a summary of system head losses,
detailed reports of all element data and a graph of the
system and pump curves. Ascertain NPSHA problems and potential
low or very high velocity levels.

6.) Use the DEFINE option to edit individual element data and the
UTILITY option to edit all element diameters and friction
for observing the end effect of pump specification.

7.) Once a desired system design is obtained and an actual pump
curve obtained from a manufacturer that is close in operating
point with the theoretical one, the actual curve can be entered
by positioning at the pump and pressing F2, selecting a pump
"to be defined" instead of "to be prescribed" and entering the
points off the curve. The system can then be analyzed and
adjusted for the actual operating of the system.




DESIGN TIPS...


- If a pump is to be prescribed for the system, the design flow is the
desired flow for the system. If the pump curve is known (ie, an existing
system analysis) the design (analysis) flow should be near the
operating point of the system.

- When a pump is restricted to being positioned at a certain location
and the NPSHA is low, the diameters of the suction side lines can be
increased to minimize these intake losses.

- When a pump is not restricted to a specific location, the insert element
function (F4) and delete element function (F3) can be used to move the
pump to various spots in the line to provide adequate NPSHA.

- Trade offs existing between system element diameters (pipe and fitting
costs) and pump size (pump costs) can be made by using the UTILITY -
DIAMETER option and letting HYDROFLO prescribe the pump. The optimal
solution would be find the minimum total cost for the system while
meeting the design flow and providing an adequate NPSHA (Net Positive
Suction Head Available).






DEFINE (excerpt from the HYDROFLO User Guide)

The DEFINE option on the main menu allows you to ENTER and EDIT new system
elements. This section details the type of elements available for defining.


ELEMENTS AVAILABLE FOR DEFINING ...


- INLETS

The first element in a design is an inlet. The user can select the
type of inlet from the inlet menu or press F2 and input custom values for
description and resistance coefficient K. In both cases, the inlet
elevation, diameter and pressure are needed. A non-zero diameter is
needed to set up the default system diameter. The pressure value is the
absolute atmospheric pressure at the surface of liquid supply level
(barometric pressure from an open tank or absolute
pressure existing in a closed tank). This value of pressure is needed for
the NPSHA calculation. If using HYDROFLO to obtain simple head loss values
for other element than inlets, a zero value of K for the inlet will omit
inlet losses from REPORT option totals.


- PIPES

The data entered for pipes include description, diameter, length and
friction factor. The optional descriptions for all elements are for
the use of the user for identification purposes. The friction factor that
appears will be either the default specific roughness or the default H-W
coefficient and is available for editing. The user is free to press
RETURN and use this value or input another friction value.


- VALVES & FITTINGS

The fitting menu lists numerous types of valves and fittings. Use the
cursor arrow keys to hi-light the desired fitting and press return to select
it. The user will then be prompted for the fitting diameter and HYDROFLO
will use the appropriate K value for the fitting in its head loss
calculations. The user has the option of pressing F2 on the fitting menu
and then inputing custom descriptions and K values. NOTE: when custom
values are input and when then the UTILITY - DIAMETER option is used,
HYDROFLO will not be able to update the fitting's K value accordingly and
the user must remember to update the value.


- PUMPS

The user has the choice of defining a pump curve for analysis or letting
HYDROFLO prescribe one for the system. If a curve is defined, the
user must describe four equal distant points off the curve as follows. The
flow increment sets the distance between the four points and is in units of
flow. The four points of head begin first with the shutoff head (The head
at which no flow can be pushed through the pump). The remaining three points
from the curve are the head values at the flow increment, twice the flow
increment and three times the flow increment. Once a pump is defined, the
user can position the element pointer at the pump and press F5 to obtain a
plot of the pump curve. The pump elevation is needed for the NPSHA
calculation and the suction side calculations. The atmospheric pressure,
needed for NPSHA, suction and discharge calculations when pressure tanks are
used, is input in the STATUS option.


- EXITS

The last element in a hydraulic system is an exit. The K value for
exits is normally 1.0 but the user has the option of inputing any value.
The pressure at the exit will default to the pump's atmospheric pressure. If
the discharge is to be a substantially different elevation or a closed tank,
be sure to update this value to the correct absolute pressure.




EDITING (excerpt from the HYDROFLO User Guide) ...


EDIT (F2)

Use the cursor arrow keys to position the pointer at a defined element and
press F2. The original data is displayed and available for editing by
inserting or overtyping text or numeric characters. Pressing RETURN or
pressing arrow down at a data position retains the original values shown.
Pressing escape jumps out of the editing of the current element and
moves to the next element.


DELETE (F3)

When positioned at a defined element, pressing the F3 key prompts the
user for deletion of that element. If the user confirms the request the
element is removed. Pressing "N" or Esc retains the element.


INSERT (F4)

Pressing the F4 key prompts the user for inserting an element before
the current element. Again the user can confirm the request and select the
type of element to insert. Pressing "N" or Esc aborts the operation.


PG-UP and PG-DN

These keys allow movement by screens within the pages of defined elements.



DEMO PROBLEM 1

An engineer is to provide the pump curve and system pipe size needed for
the hydraulic system shown opposite. A flow of 250 gpm is desired. The
Hazen-Williams equation will be used to compute pipe head losses in this water
system.

The file DEMO1.FLO on the demo disk contains the data for this problem
and can be retrieved using the FILE - RETRIEVE option. The following
text describes the step by step procedure for creating this file.

First, enter HYDROFLO's STATUS option by pressing "S" at the opening
screen or press the space bar once to move to and hi-light the "STATUS"
phrase, then press the RETURN (ENTER) key. Once in the STATUS option,
press the arrow down key to move past the DATA FILE DIRECTORY field to the
HEAD CALCULATION EQUATION field. If "Hazen-Williams" is not displayed,
press the arrow right or left key to switch from the displayed "Darcy-
Wiesbach" statement and press the arrow down key to move to the UNIT SYSTEM
field. It should say "English" and if not, pressing arrow left or right
will switch to the desired unit system. FLOW UNITS are selected as the
above parameters were, and we use "gpm" not "cfs" . The DESIGN (ANALYSIS)
FLOW is a string input field and so type in "250." and press the arrow down
(or RETURN) key. If any parameter field is not correct, press the arrow up
key until arriving at the desired field, then edit it accordingly. For HEAD
UNITS we want "feet of liquid" not "psi" and it is selected as FLOW UNITS
was above. Type in "100." and press RETURN for the DEFAULT H-W
COEFFICIENT. This system uses water and to set the SPECIFIC GRAVITY at 1.0,
just press RETURN. The VAPOR PRESSURE of water at 60 degrees F is ".25"
psia so that value is entered and RETURN is pressed. Enter "14.2" for the
atmospheric pressure at the pump and press RETURN. The following prompt
will now appear...

Update current system to new values: NO YES

If the values set are correct, press RETURN or " Y " to accept the new
values. If they aren't, we could press RETURN anyway to accept the values,
and then go back to the STATUS option again to edit desired fields. If we
chose not to accept the new values at all, we could press "N" or Esc to abort
the process. When the values are correct and are accepted, a prompt to
update the default parameter file appears. If we wanted to use
the new values each time HYDROFLO was started, we would answer with a "Y",
but for these demonstration purposes we instead press RETURN.


Discharge elev = 1080.63'

Supply elev = 1012.51'

PRESSURES:
pump elev = 1005.74'
press. at pump = 14.2 psia

PIPES:
Steel sched-40 4"(est)
H-W coef = 100
(page 3-8 Cameron)
Spec Rough = .00015
(page 3-5 Cameron)

FLUID:
Water at 60 deg. F.
Vap. press. = .25 psia
(Page 4-20 Cameron)
Kin. vis = .00001216 ft2/sec
(pg 4-4 & 4-25 Cameron)



DETAILED REPORT - INDIVIDUAL ELEMENTS
(System: DEMO1.FLO) @ flow = 250.00 gpm

El# Description Fric Dia Vel HL
(inches) (ft/s) (feet)
1 Inlet Flush - sharp edged 0.50 4.00 6.38 0.32
Elev = 1012.51 feet Press = 14.20 psia
2 Pipe l= 50.00 100.00 4.00 6.38 3.35
3 Fitt Std. elbow-long radius 90 deg. 0.27 4.00 6.38 0.17
4 Pipe l= 25.00 100.00 4.00 6.38 1.67
5 Fitt Stop check valves 6.80 4.00 6.38 4.31
6 Fitt Plug valve Straightway 0.31 4.00 6.38 0.20
7 Pipe l= 6.00 100.00 4.00 6.38 0.40
8 Pump pump prescribed for system
Elev = 1005.74 feet Press = 14.20 psia
9 Pipe l= 6.00 100.00 4.00 6.38 0.40
10 Fitt Butterfly valve 0.77 4.00 6.38 0.49
11 Pipe l= 50.00 100.00 4.00 6.38 3.35
12 Fitt Std. elbow-long radius 90 deg. 0.27 4.00 6.38 0.17
13 Pipe l= 500.00 100.00 4.00 6.38 33.48
14 Fitt Stop check valves 6.80 4.00 6.38 4.31
15 Pipe l=1000.00 100.00 4.00 6.38 66.97
16 Exit 1.00 4.00 6.38 0.63
Elev = 1080.63 feet Press = 14.20 psia


Back at the main HYDROFLO menu, we select the DEFINE option to
perform data input of the elements shown on the opposite of this side
of the page. Starting with the inlet (the element data is listed in
output report opposite side of paper). When DEFINE is selected, the
Inlet menu appears and the description "Flush - sharp edged" is hi-
lighted by pressing arrow down once, then pressing RETURN to select. A
smaller sub-window appears that displays the inlet description and
resistance value K, and the cursor is positioned at the elevation field.
An elevation of "1012.51" is input and the user presses RETURN. Our
initial estimate of system diameter is 4" and that value is entered thus
setting up the default diameter for the rest of the system. The pressure
at the inlet is the next input and since this is an open surface intake,
press RETURN to use the default atmospheric pressure (set up for the pump
in the STATUS option).

The element menu is automatically displayed after the inlet data input
and the position pointer is set to element #2. Element #2 is a pipe so
RETURN is pressed and an optional description can be entered. The next
field displays the default diameter set up for the inlet and RETURN can
be pressed to accept the value. A length of "50." feet is entered for
the pipe and the RETURN key is pressed. The default Hazen-Williams coef-
ficient appears and the RETURN key is again pressed to accept the value.

The element menu is displayed and the pointer is positioned at element
#3. This element is a fitting and the word "Fitt" is hi-lighted by press-
ing the arrow down key and the RETURN key is pressed to select it and the
fitting and valve menu appears. Again using the cursor arrow keys, the
statement "Std. elbow long radius 90 deg" is hi-lighted and the RETURN
key is pressed. The default diameter is displayed and RETURN is pressed
to accept the default value. HYDROFLO automatically uses the correct
resistance coefficient K, for inlets, exits, valves and fittings selected
from it's internal menus.

The data for elements #4 through #7 are input in the same manner as
the previous elements.

When pump position #8 is reached, the phrase " pump " is hi-lighted
on the element menu and the RETURN key is pressed. The pump window appears
and offers the choice of "define a pump for analysis" or "let HYDROFLO
prescribe a pump" for the system. In this problem, a pump is to be
prescribed so press the arrow down key and then press RETURN. The pump
elevation field is displayed and the value "1005.74" is entered an
RETURN is pressed.

The data for elements #9 through #15 is entered (according to data
listed on opposite side, detailed report) up to exit element #16.

At exit element #16, the phrase " exit " is hi-lighted on the element
menu and the RETURN key is pressed. A window is displayed with the exit's
data and the cursor is positioned at the description field. The description
is optional. The next input field is the resistance coefficient, K. For
most exits a value of 1.0 is used but the value may be edited. In the
elevation field a value of "1080.63" is entered the RETURN key is
pressed. We press RETURN again to accept the default diameter value and
again to accept the default pressure since this is an open surface exit.

The "defined" mode is entered where by pressing the arrow left or
right (or page-up, page-dn) key can position the pointer at an element and
display it's data. We can edit an individual element's data by positioning
the pointer at the element and pressing F2, insert an element by pressing
F4 or delete an element by pressing F3.

With the full featured version we could now select FILE , then SAVE
and specify a filename for our data to reside in. At the main menu run the
ANALYZE option to determine if any potential problems exist in the system.

From the main menu, the REPORT option can be used to preview results
of the analysis. The operating point is determined to be at 250 gpm and
188 feet head with a NPSHA (Net Positive Suction Head Available) of 28.5
feet and a general system velocity of 6.38 ft/sec. Other system diameters
can be tested with the full featured of HYDROFLO using the UTILITY -
DIAMETER option but 4" appears to be the best. With the demo disk, the
DEFINE option is used to edit individual element diameters using the F2 key.

The graph obtained with the REPORT - GRAPH option (CAPACITY vs. HEAD
graph, following) and the NPSHA value (end of SUMMARY OF PUMPING SYSTEM DATA)
would be taken to a pump manufacturer to find an appropriate pump. Once a
close operating pump is found, it's curve is input to the system by
positioning the DEFINE pointer to the pump position and pressing F2,
selecting "define a pump" (the top line option) then inputing it's data
according to the previously discussed DEFINE - PUMPS section and
the actual operating point will be found.





SUMMARY OF PUMPING SYSTEM DATA (System: DEMO1.FLO)

CONFIGURATION: Hazen-Williams Eq.
Flow = 250.00 gpm

FLUID PROPERTIES:
Specific Gravity = 1.000
Vapor Pressure = 0.25 psia

STATIC HEADS:
Suction Elev Head = 6.77 feet
Discharge Elev Head = 74.89 feet
Exit - inlet press. = 0.00 feet
Total Static Head = 68.12 feet

NPSHA CALCULATION:
Supply pressure = 14.20 psia (abs)
Vapor pressure = 0.25 psia (abs)
Suction static head = 6.77 feet
Suction dynamic hd = 10.41 feet @ design flow
NPSHA = 28.58 feet


HEAD LOSSES (in feet)
FLOW (gpm)
SUCTION SIDE 125 250 375
MINOR LOSSES:
Valves & fittings 1.25 4.99 11.23
MAJOR LOSSES:
Pipe HL using Hazen-Williams Eq 1.50 5.42 11.48
STATIC SUCTION HEAD:
Inlet - pump elev + pressures 6.77 6.77 6.77
TOTAL SUCTION HEAD:
Head (+), lift (-) 4.02 -3.64 -15.94

DISCHARGE SIDE
MINOR LOSSES:
Valves & fittings 1.40 5.60 12.59
MAJOR LOSSES:
Pipe HL using Hazen-Williams 28.90 104.20 220.61
STATIC DISCHARGE HEAD:
Exit - pump elev + pressures 74.89 74.89 74.89
TOTAL DISCHARGE HEAD:
Static head plus friction losses 105.19 184.69 308.10

TOTAL SYSTEM LOSSES
TOTAL SUCTION HEAD:
Static head + friction losses 4.02 -3.64 -15.94
TOTAL DISCHARGE HEAD:
Static head + friction losses 105.19 184.69 308.10
TOTAL SYSTEM HEAD:
Suction and discharge heads 101.18 188.33 324.04

Pump Prescription:
Design operating point: FLOW = 250.00 gpm
HEAD = 188.33 feet
NPSHA = 28.58 feet






DEMO PROBLEM 2


A pump is to be specified for the oil conveyance system displayed
opposite. A flow of .4 m3/sec is to be delivered by the 30 cm. diameter
system. The Darcy-Wiesbach equation will be used to calculate pipe
head losses and the valves will be modeled as pipes using the equivalent
length method. The file DEMO2.FLO on the demo disk contains the data for
this problem and can be retrieved using the FILE - RETRIEVE option.

Using HYDROFLO's STATUS option, we set the Darcy-Wiesbach equation
for use in calculating pipe head losses. The DESIGN (ANALYSIS) FLOW will
be set at .4 m3/sec. Within the metric unit system we setup flow units
of m3/sec and head units of meters of liquid. We will also set a default
specific roughness of .03 mm for the steel pipe. Specific gravity and
kinematic viscosity are set to the values listed opposite.

Using the DEFINE option, we give the inlet a K value of
0.0 because all fittings (except the pump) are being modeled as equivalent
lengths of pipe. On the inlet data input, press arrow up when at the
elevation field and enter "0.0" for the friction K value. All the other
data for the inlet is needed so that static head and NPSHA calculations are
performed correctly. Using the chart on page 3-121 in Cameron (included
with full featured version) we line up the diameter 11.8 inches (30 cm.) and
the point for an ordinary entrance and we get 17 feet of pipe length which
works out to 5.18 meters. Pipe element #2 has a length of 30 meters so we
have added this length to it. The same process is used for the exit and
its equivalent length is add to pipe #24 and a K value of 0.0 is given to
the exit.

The rest of the data is entered (pipes entered normally and valves as
pipes) along with the pump which we request to be prescribed.

The ANALYZE option will tell us that the inlet and exit have zero
for coefficients. This is as intended. The losses for the inlet and
exit are included in the adjacent pipes length.

The prescribed pump's and system's curve along with the system summary
of head losses is shown on the back of this page.


Tank B elev = 178.15 m

Tank A elev = 132.63 m

Pump elev = 125.79 m

PIPING SYSTEM:
Steel sched-40 30 cm.
Specific Rough = .03 mm

PRESSURES:
Atm press @ pump = 99.285 Kpa
Tank A = 121.39 Kpa (closed)
Tank B = 103.54 Kpa (closed)

FLUID:
SG = .86 Crude oil at 120 deg. F.
Kinematic Vis = 4.1 centistokes = 4.1e-6 m2/sec
Vap. press. = .5 KPa




DETAILED REPORT - INDIVIDUAL ELEMENTS
(System: DEMO2.FLO) @ flow = 0.40 m3/sec

El# Description Fric Dia Vel HL
(cm.) (mtr/s) (meters)
1 Inlet Inward projecting 0.00 30.00 5.66 0.00
Elev = 132.63 meters Press = 121.39 Kpa
2 Pipe l= 35.18 3.00e-002 30.00 5.66 2.83
3 Pipe Fitt -elbow-45 deg l= 4.27 3.00e-002 30.00 5.66 0.34
4 Pipe l= 30.00 3.00e-002 30.00 5.66 2.41
5 Pipe Fitt -Tee-thruflo l= 5.79 3.00e-002 30.00 5.66 0.47
6 Pipe l= 15.00 3.00e-002 30.00 5.66 1.21
7 Pipe Fitt -Tee-thruflo l= 5.79 3.00e-002 30.00 5.66 0.47
8 Pipe l= 47.00 3.00e-002 30.00 5.66 3.78
9 Pipe Fitt -Sw chk val l= 22.86 3.00e-002 30.00 5.66 1.84
10 Pipe Fitt -Plug Val Str l= 4.27 3.00e-002 30.00 5.66 0.34
11 Pipe l= 4.00 3.00e-002 30.00 5.66 0.32
12 Pump pump prescribed for system
Elev = 125.79 meters Press = 99.29 Kpa
13 Pipe l= 4.00 3.00e-002 30.00 5.66 0.32
14 Pipe Fitt -Plug val str l= 4.27 3.00e-002 30.00 5.66 0.34
15 Pipe l= 150.00 3.00e-002 30.00 5.66 12.07
16 Pipe Fitt -elbow lr 90 l= 7.62 3.00e-002 30.00 5.66 0.61
17 Pipe l= 85.18 3.00e-002 30.00 5.66 6.85
18 Exit 0.00 30.00 5.66 0.00
Elev = 178.15 meters Press = 103.54 Kpa




SUMMARY OF PUMPING SYSTEM DATA (System: DEMO2.FLO)

CONFIGURATION: Darcy-Wiesbach Eq.
Flow = 0.40 m3/sec

FLUID PROPERTIES:
Specific Gravity = 0.860
Vapor Pressure = 0.50 Kpa
Kinematic Viscosity = 4.1e-006 m2/sec

STATIC HEADS:
Suction Elev Head = 6.84 meters
Discharge Elev Head = 52.36 meters
Exit - inlet press. = -2.12 meters
Total Static Head = 43.40 meters

NPSHA CALCULATION:
Supply pressure = 121.39 Kpa (abs)
Vapor pressure = 0.50 Kpa (abs)
Suction static head = 6.84 meters
Suction dynamic hd = 14.01 meters @ design flow
NPSHA = 7.16 meters


HEAD LOSSES (in meters)
FLOW (m3/sec)
SUCTION SIDE 0.20 0.40 0.60
MINOR LOSSES:
Valves & fittings 0.00 0.00 0.00
MAJOR LOSSES:
Pipe HL using Darcy-Wiesbach Eq 3.87 14.01 30.05
STATIC SUCTION HEAD:
Inlet - pump elev + pressures 9.46 9.46 9.46
TOTAL SUCTION HEAD:
Head (+), lift (-) 5.59 -4.55 -20.59

DISCHARGE SIDE
MINOR LOSSES:
Valves & fittings 0.00 0.00 0.00
MAJOR LOSSES:
Pipe HL using Darcy-Wiesbach 5.58 20.20 43.32
STATIC DISCHARGE HEAD:
Exit - pump elev + pressures 52.86 52.86 52.86
TOTAL DISCHARGE HEAD:
Static head plus friction losses 58.44 73.07 96.19

TOTAL SYSTEM LOSSES
TOTAL SUCTION HEAD:
Static head + friction losses 5.59 -4.55 -20.59
TOTAL DISCHARGE HEAD:
Static head + friction losses 58.44 73.07 96.19
TOTAL SYSTEM HEAD:
Suction and discharge heads 52.85 77.62 116.78

Pump Prescription:
Design operating point: FLOW = 0.40 m3/sec
HEAD = 77.62 meters
NPSHA = 7.16 meters


 December 26, 2017  Add comments

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