Free Software for Sprinkler Hydraulic Calculations by Alan Ashfield

20 COMPLETELY FREE FIRE SPRINKLER HYDRAULIC CALCULATIONS PROGRAMS

16th June 2017 - You can also select operating heads in CAD2ENRULES by drawing a "box" around them in a plan view - especially useful for most favourable design areas and gridded systems ...

2nd June 2017 - Thank you for visiting this website in vastly increasing numbers since I added my unique CAD2HCP / CAD2ENRULES programs. Come and join the hundreds of sprinkler designers and contractors around the world who have abandoned their expensive and time-consuming standalone hydraulics programs now that these calculations can be quickly done DIRECTLY from your 2D sprinkler layout drawings all for FREE ...

8th May 2017 - 15 more pipe types added to FIRSTHCP (#1 of 20 below) and this information is now stored in a user-editable database file as requested ...

4th April 2017 - Another program called CAD2ENRULES (see #3 of 20 below) which makes your existing hydraulics program obsolete by carrying out all the most remote / favourable design area calculations to the EN12845 (and similar) Rules from just the information on your 2D CAD sprinkler layout drawing ...

20th March 2017 - An essential new program CAD2HCP (see #2 of 20 below) which will do all the NFPA / FM hydraulic calculations directly from your CAD sprinkler layout drawing ...

14th March 2017 - A major new program called FIRSTHCP added (see #1 of 20 below) so why not make this your first hydraulic calculations program ...

PDF files of results printouts (20.02.17)...

If you wish to view the results presentations from my extensive portfolio of sprinkler hydraulics programs, just click on these links to AACALC7, AACALC9, EASYSHP, FREESHP, FREEWATERMIST, HYD, NEW3RD or VSHP.

You can then compare them to any other expensive "paid-for" software you may already have before downloading the full program for FREE as shown below for a more detailed evaluation - the other programs just produce .TXT, .JPG or .DXF files.

Programs under active consideration (31.03.17) ...

If you wish to volunteer some time in evaluating and assisting in the development of :-

AUTOGRID - for a given building size and hazard classification, this program will quickly calculate ALL viable arrangements of range and head spacings, "K" factors, front track (near main), range (branch line) and back track (far main) pipe sizes for the most remote and/or favourable design areas for a gridded pipework system and show on screen / produce DXF file of the best arrangement ...

AUTOROOM - an "add-on" to your subscription based CAD program where you select the walls / corners of any area and choose some design parameters to show the best arrangement of heads and the optimum way to join them together based on a riser position / main entry position for transfer back to the plan ...

AUTOEST - a "spreadsheet" based pricing and estimating program taking information directly from your CAD sprinkler layout drawing and confidential, encrypted rates file(s) to produce the complete "Bill of Quantities" style report and total price ...

then please Email me and I will tell you the secret pages on this website where preliminary versions can be downloaded to try out and comment accordingly as you see fit.

Please SCROLL DOWN for summaries, download links, more detailed information and instructions for each of my 20 programs - the only ENTIRELY FREE ones of their kind with the compliments of the UK's foremost developer of premier fire sprinkler hydraulics calculations software ...

FREE program #1 of 20 : FIRSTHCP

FIRSTHCP showing DEMO1

FIRSTHCP is simple "point and click" drawing program for first-time users to the NFPA 13 / 15 Rules and dating from March 2017.

Click here for further screen shots / details about FIRSTHCP or click here to download FIRSTHCP [08.05.17 661 kB] directly including additional pipe types. If using a Microsoft browser and you get a blue bar across the screen about SmartScreen, just click on "More info" and "Run anyway" to download and run this program.

FREE program #2 of 20 : CAD2HCP

CAD2HCP will permit you to prepare your sprinkler layout drawing with any 2D CAD program (the excellent free LIBRECAD one is shown here), following a few, simple guidelines to add some text alongside the pipe sizes on the LINE / CIRCLE entities :-

CAD2HCP - LIBRECAD

Choose "Open" in CAD2HCP to select the file name to see this automatically generated 3D isometric using these items of text :-

CAD2HCP - DEMO1

Just click on the heads within the required branch lines to immediately do all the full hydraulic calculations with the flow rates shown and the most remotest head in green :-

CAD2HCP - CALCS

One more click will show part of the RESULTS (use the 'arrow' keys to see the rest) :-

CAD2HCP - RESULTS

and one more click will PRINT to PDF or inkjet/laser printer if needed, or SAVE TO JPG, ZERO HEADS (to start a new design area) with other 3D views of your system and helpful labels (such as pipe pressures shown here) "zoomed in" :-

CAD2HCP - ZOOMED IN

I think you will find CAD2HCP is a viable, zero-cost alternative to your current task of abstracting and duplicating a lot of information and data from the sprinkler layout drawing to / from a separate hydraulics program, for the same project. With my latest program, the 2D CAD drawing is the hydraulics data file to the latest NFPA / FM Rules in metric units. Just by adding a few more notes next to the pipe size (that you always show anyway), you don't need to buy any Building Information Management (BIM / REVIT) programs or continue with your existing hydraulic calculations software. If you wish to follow the EN12845 (and similar) Rules, please continue downwards to CAD2ENRULES.

Click here for further screen shots / details about CAD2HCP or click here to download CAD2HCP [04.04.17 837 kB] directly. If using a Microsoft browser and you get a blue bar across the screen about SmartScreen, just click on "More info" and "Run anyway" to download and run this program.

FREE program #3 of 20 : CAD2ENRULES

You just draw out the sprinkler heads and pipes following some simple guidelines in your existing CAD program and add sizes / notes (mainly on vertical pipes) and you have finished - both the layout drawing AND as many hydraulic calculation areas as you want a few minutes later with this program.

The following screen shots show how you run CAD2ENRULES with your 2D CAD layout drawing all done in LibreCAD or similar (here zoomed in to the top left hand corner) :-

CAD2ENRULES - LIBRECAD

Choose "Open" in the program (under Windows 7) to see the 3D isometric full size :-

CAD2ENRULES - DEMO1

Just draw a "box" around heads in a plan view or click on the heads at the end of the required ranges in an isometric view to immediately do all the full hydraulic calculations with the flow rates shown, with the most remotest 4 heads in green :-

CAD2ENRULES - CALCS

One more click will show part of the RESULTS (use the 'arrow' keys to see the rest) :-

CAD2ENRULES - RESULTS

and one more click will PRINT to PDF or inkjet/laser printer if needed, or you can get other views of your system with helpful text information. Here I have selected to view the pipe pressures and right clicked to zoom in - what could be easier?

CAD2ENRULES - ZOOMED IN

All the information about the project data, layers, sizes, design parameters, pipe sizes / types / bores and fitting types / equivalent lengths is stored in BSEN12845.TXT - but you can add to, change or copy it as many times as needed for your own country / company / specific projects / CEA / DBI / CP52 / AS2118 etc Sprinkler Rules and can even translate the text into your own language as shown below :-

CAD2ENRULES - BSEN12845.TXT FILE

No longer do you have to waste a lot of time in entering most (if not all!) the pipework / sprinkler heads that you have already drawn on the 2D CAD sprinkler layout plan into a separate hydraulics calculations program. Just by marking on a few extra items of text next to the size in mm against the pipes in CAD, I can produce a 3D isometric instantly and automatically so that any design area can be selected, the complicated "sums" done immediately and the familiar results presentation shown on screen / printed out. Try it out for yourself for FREE today and compare it to your existing design office procedures / workload - there are 6 demonstration examples to aid this evaluation. If you wish to follow the NFPA / FM Global Sprinkler Rules, please go back up the screen to CAD2HCP.

Click here for further screen shots / details about CAD2ENRULES or click here to download CAD2ENRULES [latest = 16.06.17 845 kB] directly. If using a Microsoft browser and you get a blue bar across the screen about SmartScreen, just click on "More info" and "Run anyway" to download and run this program.

FREE program #4 of 20 : FREEHC

Demo 2

FREEHC is a new, comprehensive and completely free "Windows" program for the full hydraulic calculations of all types of fire sprinkler protection systems to most countries rules and languages as follows :-

FREE program #5 of 20 : AACALC8

AACALC8 - page 4 of 5

An essential Windows "APP" for all sprinkler designers, installers and consultants in 5 sections :-

Click here for further screen shots / details about AACALC8 or click here to download AACALC8 [520 kB] directly. If using a Microsoft browser and you get a blue bar across the screen about SmartScreen, just click on "More info" and "Run anyway" to download and run this program.

FREE program #6 of 20 : FREEWATERMIST

FreeWaterMist Demo 1

FREEWATERMIST will carry out the hydraulic calculations of NFPA 750 Standard on Water Mist Fire Protection Systems (2015 Edition) as follows :-

FREE program #7 of 20 : AACALC12

AACALC12 isometric

AACALC12 is for the Pipe Schedule sizing method in NFPA 13 directly from your CAD drawing to produce a materials take-off quantities list / estimate in metric units only.

Click here for further screen shots / details about AACALC12 or click here to download AACALC12 [21.07.15 550 kB] directly. If using a Microsoft browser and you get a blue bar across the screen about SmartScreen, just click on "More info" and "Run anyway" to download and run this program.

FREE program #8 of 20 : AACALC11

AACALC11 - Demo 3

AACALC11 is a very simple spreadsheet based program to enable end-fed, looped and gridded fire protection pipework systems to be quickly entered, analysed and evaluated so that you may learn about full hydraulic calculations of sprinkler systems for yourself. It also shows a drawing (along with the input data and the results) by allowing the node numbers to represent the X and Y position percentages on the screen.

Click here for further screen shots / details about AACALC11 or click here to download AACALC11 [06.06.16 555 kB] directly for Hazen Williams "C" factors from 20 to 200 specifically for really old underground pipes to FM Rules. If using a Microsoft browser and you get a blue bar across the screen about SmartScreen, just click on "More info" and "Run anyway" to download and run this program.

FREE program #9 of 20 : AACALC10

AACALC10 - Demo 1

AACALC10 is a spreadsheet based program to enable end-fed, looped and gridded fire protection pipework systems to be quickly entered, analysed and evaluated so that you may learn about full hydraulic calculations of sprinkler systems for yourself.

Click here for further screen shots / details about AACALC10 or click here to download AACALC10 [19.02.15 545 kB] directly. If using a Microsoft browser and you get a blue bar across the screen about SmartScreen, just click on "More info" and "Run anyway" to download and run this program.

Please see the bottom of this page for a full description and worked manual example of a typical hydraulic calculation if you are unfamiliar with the formulas and equations used

FREE program #10 of 20 : AACALC9

Main AACALC9 screen

AACALC9 is simple "point and click" drawing program for first-time users to the NFPA 13 / 15 Rules and dating from February 2014.

Click here for further screen shots / details about AACALC9 or click here to download AACALC9 [16.10.14 862 kB] directly. If using a Microsoft browser and you get a blue bar across the screen about SmartScreen, just click on "More info" and "Run anyway" to download and run this program.

FREE program #11 of 20 : FREESHP

Main FREESHP screen

Calculation of hydraulically designed sprinkler (room design and area/density methods) and spray systems to the NFPA 13/15 and FM Global Rules in metric units. Node references are only required at tees / crosses (not at each end of all pipes) and you give the size, length, direction and slope of the pipes to the operating heads / nozzles so a 3D picture is produced as a DXF file. There is just one way and place to add, break, copy, delete, edit, move, locate or view pipes - no confusing options to learn or superfluous videos / manuals needed to find out what does what! You may have a background CAD drawing so can "draw" the pipes on the building / rooms / services plan rather than a blank screen. See the CAD2HCP program above if you prefer to do the CAD drawing first.

Click here for tutorial [24th January 2013 - about 9kb - just "Save" it to somewhere on your hard disk]. I have redone this as as .RTF file so users with HD screens can just reduce the width of FREESHP and have WORDPAD or similar running alongside, making it easier to step through the various options and see the program in operation.

Click here for further screen shots / details about FREESHP including new pipe types added 08.10.15 or click here to download FREESHP [09.12.15 954 kB] directly. If using a Microsoft browser and you get a blue bar across the screen about SmartScreen, just click on "More info" and "Run anyway" to download and run this program.

FREE program #12 of 20 : EASYSHP

Typical results from EASYSHP

Full hydraulic calculation of sprinkler and spray systems to the European EN12845 Rules in metric units. Innovative / unique features include just 4 screens - "File options", "Project and Pipe Data", "Calculate and Show Results" and "Help" - very quick and easy to apply for your projects using simple data entry procedures and immediate calculations. Does not need to produce a drawing as most Reviewers / Inspectors still insist on seeing your sprinkler layout drawings so have to manually match them with the hydraulic calculations.

Click here for further screen shots / details about EASYSHP or click here to download EASYSHP [15.09.14 600 kB] directly. If using a Microsoft browser and you get a blue bar across the screen about SmartScreen, just click on "More info" and "Run anyway" to download and run this program.

FREE program #13 of 20 : IPDS43

Qcap / Qmax graph

A standalone program for the calculation of the Qcap and Qmax values for the Installers Pump Data Sheet as the EN12845 and similar Sprinkler Rules in the same format as EASYSHP, so can also be used with HYD and older programs that do not include such an option. You just enter the flows, pressures and highest heads for the most remote / favourable design areas as well as the pump / tank details. These are typed in on simple "tabbed" data entry screens and you can view the resulting diagram on the same screen. If you hold your mouse button over one of the 8 data points, you can then slide it up or down and have the pump curve drawn out to suit with the revised Qcap / Qmax values.

Click here for further screen shots / details about IPDS43 or click here to download IPDS43 [954 kB] directly. If using a Microsoft browser and you get a blue bar across the screen about SmartScreen, just click on "More info" and "Run anyway" to download and run this program.

FREE program #14 of 20 : VSHP

Main VSHP screen

Full hydraulic calculation of sprinkler and spray systems to various International Rules in metric units. Innovative / unique features include an "all-in-one" user interface without needing to draw out the pipework scheme, a "grid wizard" option to automatically calculate the most remote / favourable design areas and show the Qcap/Qmax graph and easy to follow results presentation.

Click here for further screen shots / details about VSHP or click here to download VSHP [1260 kB] directly. If using a Microsoft browser and you get a blue bar across the screen about SmartScreen, just click on "More info" and "Run anyway" to download and run this program.

FREE program #15 of 20 : AACALC7

Typical screen display of AACALC7

Full hydraulic calculation of sprinkler and spray systems to the European EN12845 / CEA Rules in metric units. Innovative / unique features include a very comprehensive options list, producing a zoomable 3D "picture" of the pipework / heads with an aerial view on a building "background", multiple water supplies, unique range numbers (so a complete range can be copied with a single number) or pipe-by-pipe, range-by-range (using "node" numbers that you may be used to), fast calculations and easy to follow results presentation. LibreCAD (http://librecad.org) is Free Open Source Software for the creation / amendment of the DXF drawing files produced by AACALC7.

Click here for further screen shots / details about AACALC7 or click here to download AACALC7 [1890 kB] directly. If using a Microsoft browser and you get a blue bar across the screen about SmartScreen, just click on "More info" and "Run anyway" to download and run this program.

FREE program #16 of 20 : AAVIEW7

Example of AAVIEW7

A free viewing program for the various file types from my AACALC7 program including the CSV and XML options and 2D DXF CAD files as shown above.

Click here for further screen shots / details about AAVIEW7 or click here to download AAVIEW7 [630 kB] directly. If using a Microsoft browser and you get a blue bar across the screen about SmartScreen, just click on "More info" and "Run anyway" to download and run this program.

FREE program #17 of 20 : NEW3RD

New3RD 3D drawing

NEW3RD is a very simple "page" based program just for BS9251:2014 Residential and Domestic fire sprinkler occupancies of 1 to 4 heads in 1 or 2 design areas based on the category and mains supply or stored water systems in metric units only.

Click here for further screen shots / details about NEW3RD or click here to download NEW3RD [22.05.15 710 kB] directly. If using a Microsoft browser and you get a blue bar across the screen about SmartScreen, just click on "More info" and "Run anyway" to download and run this program.

FREE program #18 of 20 : HYD

Main HYD screen

Full hydraulic calculation of sprinkler systems to BSEN12845 Rules in metric units. Innovative / unique features include a simple nodes + pipes data entry method on one screen, editable pipe types/fittings database provided now free for all it's previous users. See also the IPDS43 program #13 of 20 above for Qcap / Qmax graph.

Click here for further screen shots / details about HYD or click here to download HYD [1020 kB] directly. If using a Microsoft browser and you get a blue bar across the screen about SmartScreen, just click on "More info" and "Run anyway" to download and run this program.

FREE program #19 of 20 : HPCO2

Main hpco2 screen

High pressure Carbon Dioxide pipework / nozzles calculations program to the NFPA 12, BS5306 and ISO6183 standards in metric units. Innovative / unique features include a simple "spreadsheet" like data entry method on one screen, rotatable 3D "picture" and user editable pipe types/fittings database provided free for all it's previous users. A new option 'EXACT' in Q9 will determine the required nozzle sizes in mm to maintain the specified discharge time in minutes, rather than selecting the nearest size from the database.

Click here for further screen shots / details about HPCO2 or click here to download HPCO2 [930 kB] directly. If using a Microsoft browser and you get a blue bar across the screen about SmartScreen, just click on "More info" and "Run anyway" to download and run this program.

However, I do NOT have any software for low pressure CO2, FM200, Inergen, Novec1230, Argonite, LPG Inert IG-55, Nitrogen IG-100, Argon IG-01, Proinert or any other fixed-fire fighting gaseous systems, as only their suppliers have the equations, tables, procedures etc.

FREE program #20 of 20 : FREESPRAY

You can click here for the full source code and a test file for FREESPRAY to do the full hydraulic calculation of spray, deluge, drencher, hydrant etc. systems using the Hazen-Williams formula for the WINDOWS, LINUX, MacOS X and ANDROID operating systems. If you get a BROWSER WINDOW on screen after the download, then simply Copy/Paste the whole text into NotePad or another Text Editor and save them as freespray.pp and test1.txt in a new separate folder/directory. All the instructions for downloading the FREE PASCAL COMPILER are given as comments in the source code listing and no further programming knowledge is needed unless you wish to translate it into your own language or add pipe types/sizes/fittings. Users have already translated the 18 project questions and 11 warning messages into German, Icelandic, Norwegian, Polish, Danish, Dutch, French, Italian, Portuguese, Spanish and Swedish.

Users in China and India may be especially interested in Free Open Source Software (FOSS) such as FREESPRAY as those countries are trying to opt out of Western operating systems (Apple, Google and Microsoft), in favour of their own versions of Linux where you need the source code to compile your own individual version.

SUMMARY OF ALL ABOVE :-

Yes, all of my cost-effective "Windows" programs will not cost you anything :-

Manual calculation example (16.02.17) ...

I am sometimes asked by Email to show how my programs will get the
same answers as a manual calculation done with a pocket calculator,
so here is an example to explain the various formulas and equations
used for just 3 heads being supplied by 25, 32 and 40 mm pipes
along a branch line / range.
.
1) Assume a sprinkler head "K" factor of 80 on an Ordinary Hazard
scheme where the density is 5 mm/min and the area covered per head
is 12 sq.m, so we just have a minimum flow rate Q of 5 x 12 which
is 60 L/min, but what is the pressure?
.
2) Using the formula Q = K x square root of P (the pressure in
bars), we need to transpose this to give P in terms of the known
K and Q so is Q / K all squared which comes to 0.5625 bars.
.
3) If we assume a nominal 25 mm diameter pipe of type M to BS10255,
the actual internal bore is 27.35 mm and the Hazen-Williams "C"
factor is 120, so what would be the pressure drop of a 4 m length
(the reducing elbow at the head is included in the "K" factor) run
flat with no change in elevation?
.
4) Using the Hazen-Williams pressure drop formula :-
.
                                1.85
                605000.0 x L x Q
Pressure drop = ----------------
                 1.85       4.87
                C        x D
.
5) We have L = 4.0 m, Q = 60.0 L/min, C = 120 and D = 27.35 mm so
this works out to be
605000 x 4 x 1947.959007 / 7022.395823 / 9953646.213
which equals 0.06744157 bars.
.
6) The pressure at the second head is therefore this value plus
0.5625 bars which is 0.62994157 so giving a flow Q of 80 x square
root 0.62994157 ie. 63.49508682 L/min (about 3.5 more than the end
head because it is nearer to the source).
.
7) So the flow Q in the second 32 mm pipe is now 60 + 63.4950862 =
123.4950868 L/min along with L = 4.0 m, C = 120 but D is now 36.05
mm bore. The new pressure drop is
605000 x 4 x 7405.457734 / 7022.395823 / 38205743.91
which equals 0.066796438 bars.
.
8) The pressure at the third head is therefore this value plus
0.62994157 bars which is 0.696738008 so giving a flow Q of 80 x
square root 0.696738008 ie. 66.776667 L/min (again about 3.5 more
than the previous head).
.
9) So the flow Q in the third 40 mm pipe is now 123.4950868 +
66.776667 = 190.2717538 L/min along with L = 4.0, C = 120 and
D = 41.95 mm. The new pressure drop is
605000 x 4 x 16475.6476 / 7022.395823 / 79929053.53
which equals 0.071034263 bars.
.
10) The pressure at the start of this pipe is this value plus
0.696738008 which comes to 0.767772271 bars at a flow rate of
190.2717538 L/min.
.
11) So although we have 3 heads of nominal flow of 60 L/min, the
actual flow rate is just over 190 L/min (not 180) and the
pressure needed is 0.768 bars (not 0.56).
.
12) Perhaps this will demonstrate why nobody but nobody would ever
produce such hydraulic calculations manually - you are just bound
to make an error somewhere so getting the WRONG answer!
.
13) May I suggest you now download and run my very simple AACALC10
prgram (#9 of 20 above) and check the above calculation is the same.
You need to select "New" and type in 3 pipes as follows, pressing
{TAB} to replace the spaces below :-
.
100 110 41.95 120 4.0 0.0 0.0 80.0 60.0
110 120 36.05 120 4.0 0.0 0.0 80.0 60.0
120 130 27.35 120 4.0 0.0 0.0 80.0 60.0
.
14) It will only take a minute or two to type these values in,
noting each time that the hydraulic calculations are repeated
so that you see, on the top line :- 
.
Source duty = 190.3 L/min at 0.768 bars (ie. the same as above).
.
15) If you think that the 36.05 and 41.95 mm pipe sizes are too
big [as they are], then you simply redo the manual calculation
steps (7) to (10) and see how long it takes you.
.
16) So for 27.35, 27.35 and 36.05, the source is 198.8 L/min at
1.048 bars and for 27.35, 27.35 and 27.35, the source is 198.8 L/min
at 1.505 bars - is this what you calculated?
.
17) If you still have AACALC10 open, then you only need change
the pipe sizes and the calculations are done instantly.
AACALC10 - introduction
18) If AACALC10 is too complicated for you, then my AACALC8 will
repeat the same sums for a complete range from "page 2" simply
by setting K = 80, density = 5 and area to 12 - thats all. You
can even do 2 pipe friction loss calculations at the same time ...
AACALC8 - page 3 of 5
19) I have also provided FIRSTHCP (#1 of 20) where DEMO 3 is
this exact example to help you learn hydraulic calculations.
FIRSTHCP - View calculations
20) I can also suggest that you download the complete source
code of FREESPRAY (#20 of 20) for a real example of how such
calculations are carried out for complete sprinkler systems,
not just for 3 heads along a single branch line / range!

Thank you for taking the time to read the HOME page of my website - didn't take long, did it?

Why not try out one of my programs; I suggest you start with AACALC8 and FIRSHCP and see how you get on. If you don't like it, just delete it as it did not cost you anything and choose another of my programs or another supplier, if you can find one!