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We have a growing community of regular posting members who chat about all aspects of toy and model steam.          The Unofficial Mamod and Other Steam Forum Forum Index -> General discussion garytreible Wilesco D32 Power Output Has anyone measured the power output of a Wilesco D32 under ideal conditions?  I read somewhere that it's 1.25 HP.  I have a hard time believing that since the input power is limited to somewhere between 1500 and 1600 Watts.  I could believe the output power is maybe .5KW but even that is probably high. classixs Re: Wilesco D32 Power Output garytreible wrote: Has anyone measured the power output of a Wilesco D32 under ideal conditions?  I read somewhere that it's 1.25 HP.  I have a hard time believing that since the input power is limited to somewhere between 1500 and 1600 Watts.  I could believe the output power is maybe .5KW but even that is probably high. Perhaps the 1.25hp is a typo originating from the manufacturers 1/25hp poweroutput written on the controlboard of the steam engine kevininasia 1.25hp seems way too high to me. I'd guess somewhere in the 1/50th to 1/100th of a horsepower range, but it's obviously just a guess. Dean W It will never get anywhere near one horsepower.  If it is using 1500 watts, and running at an optimistic 1% efficiency, it will be putting out 0.020 hp, or as Kevin said, 1/50 hp.  I'd be very surprised it if came to half that in the real world. redryder I agree..... nothing even remotely close to 1.25 hp. By the way, what exactly is the bore and stroke of the D32? Gil MODmanMax You can't get any more out than you put in so the maximum at 100% efficiency is what the heater element is. Subtract all the losses and you have your answer. I am guessing 90% is lost. So if the heater is 500watts you are going to get 50 watts out. Around 1/15 horse power. scorpion2nz redryder wrote: I agree..... nothing even remotely close to 1.25 hp. By the way, what exactly is the bore and stroke of the D32? Gil same as the D20 and D16 ? redryder scorpion2nz wrote: redryder wrote: I agree..... nothing even remotely close to 1.25 hp. By the way, what exactly is the bore and stroke of the D32? Gil same as the D20 and D16 ? Thanks Dennis ! I still don't know. Gil 46u PMR C6I which has 1 1/2 bore with 2 1/2 stroke is only rated at 1/4 HP so I would guess the D32 to be less then 1/2 that or less. The bore and stroke of the D32 is not where near what the C6I has. St. Paul steam BTW....welcome to the forum   redryder Yes.... Welcome aboard, Gary !!!! I just noticed you are new and thanks to Bruce fot that. Gil 46u sorry did not notice it was your first post. Welcome to the forum. kevininasia redryder wrote: scorpion2nz wrote: redryder wrote: I agree..... nothing even remotely close to 1.25 hp. By the way, what exactly is the bore and stroke of the D32? Gil same as the D20 and D16 ? Thanks Dennis ! I still don't know. Gil The bore for the larger Wilesco cylinders D20, 21 etc is 14mm I believe. Not sure about the stroke. Probably similar. scorpion2nz kevininasia wrote: redryder wrote: scorpion2nz wrote: redryder wrote: I agree..... nothing even remotely close to 1.25 hp. By the way, what exactly is the bore and stroke of the D32? Gil same as the D20 and D16 ? Thanks Dennis ! I still don't know. Gil The bore for the larger Wilesco cylinders D20, 21 etc is 14mm I believe. Not sure about the stroke. Probably similar. stroke is about 16mm I think roughly measuring ozsteamdemon An interesting question , one that i have often pondered myself . Never seen one workin at near full load , so its anyones guess . steaminon Welcome to the forum,  where in the US do you hang your hat? Les Re: Wilesco D32 Power Output garytreible wrote: Has anyone measured the power output of a Wilesco D32 under ideal conditions?  I read somewhere that it's 1.25 HP.  I have a hard time believing that since the input power is limited to somewhere between 1500 and 1600 Watts.  I could believe the output power is maybe .5KW but even that is probably high. I do not have a D32 so I cannot help you but welcome to the forum.       MrDuck I think you'll find that the big Wilesco cylinder works best fed at about 2kg or atm. That is because before our intelligent and enlightened legislators decided better, most larger steam engines were specified to operate at around the 1.5-2kg range. I find this to be true from practical trials of my Wilescos D20 and now sold D24 as well as my old 7cm Bings, both of which features a cylinder slightly bigger than the Wilescos. Pressure then to between 1.5-2atm and they run like trains redryder scorpion2nz wrote: kevininasia wrote: redryder wrote: scorpion2nz wrote: redryder wrote: I agree..... nothing even remotely close to 1.25 hp. By the way, what exactly is the bore and stroke of the D32? Gil same as the D20 and D16 ? Thanks Dennis ! I still don't know. Gil The bore for the larger Wilesco cylinders D20, 21 etc is 14mm I believe. Not sure about the stroke. Probably similar. stroke is about 16mm I think roughly measuring Edited with corrected info: If the bore and stroke is correct at 13 X  16 mm, I converted it to inches and calculated displacement. If my numbers are right, the Wilesco cylinders have a displacement of .1295 cu in each (.259 cu in total). Total displacement is about 32% larger than a Jensen #55 (.196 cu in total) and 21% smaller than the Jensen #20 single which is .33 cu in. Again, this is assuming my new numbers are correct. Gil Klaus Lutz The D32 cylinders have a 13mm bore and 16mm stroke each, The cylinders are the same as in D16, D18, D20, D21, D24 and D28. Klaus Celsius 100 Welcome to the Forum. redryder Klaus Lutz wrote: The D32 cylinders hav e a 13mm bore and 16mm stroke each, The cylinders are the same as in D16, D18, D20, D21, D24 and D28. Klaus Thanks, Klaus. I will recalculate later. Gil Edit.... I have recalculated and edited above. Interesting so many models (single cylinder) utilize the same cylinder. Does this mean a D16 gives the most bang for the buck? Cowboy redryder wrote: Interesting so many models (single cylinder) utilize the same cylinder. Does this mean a D16 gives the most bang for the buck? Some of the others use the same cylinder but have a bigger boiler and should be able to maintain more steam. Also, I think the flywheel is bigger on some of them. I recommend anyone with any interest in Wilescos to download and save Klaus' excellent booklets, especially volume 2. They detail not only the basic specs of each model but chronological changes within each model and much other information. I don't have the link handy but it should be easy to find. Edit: Here is the link. http://www.klaus-dampfkeller.de/ redryder Cowboy wrote: redryder wrote: Interesting so many models (single cylinder) utilize the same cylinder. Does this mean a D16 gives the most bang for the buck? Some of the others use the same cylinder but have a bigger boiler and should be able to maintain more steam. Also, I think the flywheel is bigger on some of them. I recommend anyone with any interest in Wilescos to download and save Klaus' excellent booklets, especially volume 2. They detail not only the basic specs of each model but chronological changes within each model and much other information. I don't have the link handy but it should be easy to find. Edit: Here is the link. http://www.klaus-dampfkeller.de/ That is a truly good suggestion. Kudos to Klaus for all his work and for making it available. classixs Quick and easy overview from Wilescos webpage i used to keep handy in my first years as Wilesco-collector until the numbers were learned http://wilesco.de/wilesco/index.php?id=22&L=1 Cowboy Thanks, Jan. I bookmarked it. The Denying Dutchman classixs wrote: Quick and easy overview from Wilescos webpage i used to keep handy in my first years as Wilesco-collector until the numbers were learned http://wilesco.de/wilesco/index.php?id=22&L=1 There are errors in the tech. specs. The stroke of a D4/5/6 and D12 (D8 also) is 21mm instead of 16mm, so there might be more errors. SteamPig redryder wrote: If the bore and stroke is correct at 13 X  16 mm, I converted it to inches and calculated displacement. If my numbers are right, the Wilesco cylinders have a displacement of .1295 cu in each (.259 cu in total). Gil So if the boiler pressure is 1.5 bar, that's 22lb/sq.in, each stroke of each (single-acting) cylinder can do at most 22x.1295 = 2.855 in-lbs work, i.e .238 ft-lbs. If this is repeated 10 times per second, this would be a power of 2.38 ft-lbs/sec. One horse-power = 550ft-lb/sec so this is .00432 HP or about 1/250 HP Adjust this in proportion for different boiler pressure, stroke rate, and number of cylinders (a double-acting cylinder counts as two). I'm not familiar with the engine in question, but if the above calculation is correct, 2 double acting cylinders working on 3 bar at about 12 rev/sec might just scramble up to 1/25 HP mrborinator [quote="SteamPig: So if the boiler pressure is 1.5 bar, that's 22lb/sq.in, each stroke of each (single-acting) cylinder can do at most 22x.1295 = 2.855 in-lbs work, i.e .238 ft-lbs. If this is repeated 10 times per second, this would be a power of 2.38 ft-lbs/sec. One horse-power = 550ft-lb/sec so this is .00432 HP or about 1/250 HP Adjust this in proportion for different boiler pressure, stroke rate, and number of cylinders (a double-acting cylinder counts as two). I'm not familiar with the engine in question, but if the above calculation is correct, 2 double acting cylinders working on 3 bar at about 12 rev/sec might just scramble up to 1/25 HP[/quote] So if I am right "performance 1/25 hp."  means 25 X D32's equals one horsepower? Rob. dampfmaschinenjoe 1967 Steam engines give a bigger amount of pure delight than horspower, so who will measure that ? I like them the way they are even if the power output is relative small. The fun they bring is extraordinary and in my humble opinion unmeasurable. cheers Joe Klaus Lutz She has more power than you will ever need for toy driven models even for 30 or 40 of them driven at the same time (if one can arrange that). She is also able to drive at least four Wilesco generators. So you can do all you wish with toy steam items. You can not use her as an emergency backup generator! Why? If you know please tell me the answer.   Klaus redryder Klaus Lutz wrote: She has more power than you will ever need for toy driven models even for 30 or 40 of them driven at the same time (if one can arrange that). She is also able to drive at least four Wilesco generators. So you can do all you wish with toy steam items. You can not use her as an emergency backup generator! Why? If you know please tell me the answer.   Klaus I suppose it's because most of them require the very electricity you would want to back up! mrborinator Here is an example of the power of a D 32... Rob. redryder Nice video, Rob ! Your D32 clearly has more than enough power to run any of your accessories......... OR ALL OF THEM  !!!! Gil MODmanMax mrborinator wrote: Here is an example of the power of a D 32... Rob. I watched the whole 6 minutes. Fascinating. Can you please tell me more about the camera you used. Is it a web camera or a security camera? It looks like you are controlling it from your computer? I would like something like that in my shop. I also note everything is mirror image unless they make a left hand drive D32 redryder That's a good observation... I hadn't noticed the D32 is opposite in arrangement from all others I have seen. 46u Yes wondering about it be backwards from every other one I have seen. The 32D would not have a problem drive most accessories. I drove 32 accessories with with my Jensen #30 which is much smaller then the 32D. kevininasia I think it's a webcam with the "mirror image" feature on. In the video, the words on the instrument panel are all backwards too. mrborinator redryder wrote: Nice video, Rob ! Your D32 clearly has more than enough power to run any of your accessories......... OR ALL OF THEM  !!!! Gil Thanks for the response, but the vid. was not mine but from 32 Bastler from Germany. And it is true that it was filmed in revolved perspective  Here is my D32 with workshop ... Rob. redryder Rob, that's a nice set up you've assembled. I particularly like the street lamps you have built into the display. Gil Klaus Lutz redryder wrote: Klaus Lutz wrote: She has more power than you will ever need for toy driven models even for 30 or 40 of them driven at the same time (if one can arrange that). She is also able to drive at least four Wilesco generators. So you can do all you wish with toy steam items. You can not use her as an emergency backup generator! Why? If you know please tell me the answer.   Klaus I suppose it's because most of them require the very electricity you would want to back up! You got it... Dr. Rog Re: Wilesco D32 Power Output classixs wrote: garytreible wrote: Has anyone measured the power output of a Wilesco D32 under ideal conditions?  I read somewhere that it's 1.25 HP.  I have a hard time believing that since the input power is limited to somewhere between 1500 and 1600 Watts.  I could believe the output power is maybe .5KW but even that is probably high. Perhaps the 1.25hp is a typo originating from the manufacturers 1/25hp poweroutput written on the controlboard of the steam engine Most likely to me.          The Unofficial Mamod and Other Steam Forum Forum Index -> General discussion Page 1 of 1