The precision built Mike Brown 2-cylinder steam engine can support loads up to 3 horsepower.

The flywheel sits between the cylinders and has a groove cut in it for a belt to power a generator, water pump, or other device.

This is the engine we use in our Model recommend for small cabins or emergency use.

Title |
Input |
Calc |
Constants |
Value |
Units |

MAWP – Maximum allowable working pressure | 100 | ||||

To Determine Steam Engine Boiler Horsepower |
|||||

P – Mean Effective Pressure in Cylinder 80% of boiler | 80 | Mean Effective Pressure in Cylinder 80% of boiler | 80% | ||

L – Length of Stroke in feet | 2.25 | 0.18 | Converted to Inches. | ||

A – Area of Piston in Inches | 1.65 | 2.13 | 1.5/8 | ||

N – Revolutions per minute | 700 | 700 | |||

Piston Boiler HP | 0.68 | 1 HP = 33,000 ft-lbf/min | 33000 | ft-lbf | |

Engine Horse Power with 2 pistons | 1.36 | ||||

Pounds of steam per hour | 46.94 | The Boiler Horsepower (BHP) is the amount of energy required to produce 34.5 pounds of steam per hour at a pressure and temperature of 0 Psig and 212 degrees, with feed water at 0 Psig and 212 degrees | 34.5 | lbs | |

Gallons of water per hour | 6 | Water Weight per gallon | 8.3 | lbs | |

To Determine Electrical Generation |
|||||

Generator Horse Power (20% less) | 1.08 | Pulley Efficiency | 80% | ||

Kilo Watts per hour with loss | 1 | Generator Efficiency | 80% | ||

AMPS per hour | 5.65 | Watts per HP | 746 | watts | |

To Determine Boiler Fuel Usage |
|||||

BTU Input | 46944.23 | 1000 BTU’s per pound of steam for a BHP is equivalent to 33,475 BTU/Hr | 1000 | ||

Actual BTU Input with Added Fuel | 56333 | 20% fuel Added for inefficiency | |||

Pine, Lodge pole Wood BTU per pound | 6206 | 20% Moister of Lodge pole Pine based on Site: | 2465 | pounds per cord | |

Pounds of wood per hour | 9.08 | ||||

Cord per hour | 0.37% | ||||

**Manufacturer’s Details:**

17 inches long, 13 inches wide, 8 inches high, approximately 65 pounds.

The bore is 1.625 inches. The stroke is 2.25 inches.

The crankshaft diameter is 5/8 inches.

The flywheel diameter is 7.5 inches.

Steam intake .25 inch pipe, exhaust .25 inch pipe.

Maximum rpm is 700.

Manufacturers roller bearings endurance limits on the crankshaft are as follows: 860 lb. static load capacity, 350 lb. @ 600 rpm, 185 lb. @ 5000 rpm

Category:
Engines

Hello,

I have a wood gasification boiler (Greenwoodusa) that provides all the heat and hot water for my home with plenty of heat left over if needed.

I was wondering if I could use my boiler to also generate my own electricity to power the house though a steam engine generator?

What are your thoughts on this?

Thanks,

Jack

Hi Jack,

Excellent question and one we have had several inquires from before.

Although you do have a gasification boiler, it is designed to generate hot water, not steam.

To run the steam engine, you need between 100 – 200 PSI (Pounds per Square Inch) of Steam.

This is achieved with a different design of a boiler that is specific for creating the high temperature and to handle the increased pressures necessary.

Now with that said, you could use your system to preheat the water that would be used in a Steam Boiler, which would be helpful since you have excess.

But it would still necessitate having a Steam Boiler.

I hope this addresses your question.

Please let me know how I can be of any further assistance.

Peter Hammond

Montana Steam Power Inc.

888-300-8310

PS – you’ll note I did remove your phone # as requested.

Where can I get a high pressure steam boiler?

Hi Allen,

There are a couple of qualifiers to be able to address your question.

1. Do you require an ASME certified Boiler?

2. What type of fuel are you buring?

3. What is your MAWP?

4. What is the pounds of steam per hour you requiring?

5. What will consume the steam?

These answers will help me determine the appropriate recommendations for you.

Peter Hammond

Montana Steam Power Inc.

888-300-8310

Wow – talking Greek. I wanted to generate electricity for a refrigerator and a couple light fixtures. The fuel perhaps propane or kerosene maybe even coal.

Wow – talking Greek. I wanted to generate electricity for a refrigerator and a couple light fixtures. The fuel perhaps propane or kerosene maybe even coal.

Hi Allen,

Sorry for the Greek.

These are things you should understand before jumping into this.

If I may recommend this book as a starting place:

http://www.montanasteampower.com/product/steam-engine-principles-and-practice-classic-reprint/

This will give you the fundamentals so these questions aren’t Greek.

Peter Hammond

Montana Steam Power Inc.

888-300-8310