Listing ID: 331


Seller Info

ForestMarket

Member Since: May 31, 2012

Number of Times Viewed: 13542


Steam engine and electric generator system for sale - Hall, MT

  • Price:
  • $140,000 USD
  • Phone:
  • 406-546-5977

More Information

  • Listing Began:
  • October 5, 2014

Description


Two fully operational synchronous steam engine generator sets with low hours since major overhaul: (1) 300 KW Skinner, operating at 200 RPM and generating at 2300V and (1) 400 KW Elliott, operating at 150 RPM and generating at 480V.

As is, where is — Hall, Montana. Buyer responsible for removal and transportation.

Total Price: $140,000 USD

Terms: Bank transfer or cashier’s check prior to removal

What's included

  • Skinner - ready to run

  • No spare parts

  • Elliot - the bearing is toasted

  • Inlet separators

  • Exhaust oil separators

  • Throttle valves

  • Miscellaneous pipes

  • 2300v generator control panel, complete with an automatic voltage controller suitable for isolated loads 2300-480v, 300KVA transformer

  • 480v generator control panel for the Elliott, complete with an automatic voltage controller suitable for isolated loads

Terms of equipment removal

Buyer responsible for removal and transportation. We recommend Mattachak Energy for tear down, shipping, and install.

Original installation drawing and operating manuals

Copies of the installation drawing and operating manuals are available at $100 per document.

Steam engine generators

  • Assumed water rate of 38 lb steam/KWH produced@10 psig backpressure.

  • Assumed water rate of 26 lb steam/KWH when condensing at 10 in.Hg.

  • Inlet steam pressure of 150 psig.

  • The twin steam engines are fed 21,000 lb/hr of 150 psig saturated steam except for 10 hours/week when steam flow is reduced to 11,000 lb/hr during bypassing for kiln startup.

  • This arrangement results in a weighted average generator output of 702 KW during operation, right as the rating of the combined generators.

Boiler

Babcock & Wilcox, fixed grate design water tube unit rated at 300 psig saturated and 50,000 lb/hr when firing natural gas or propane. When operating on green wood as fuel, the boiler will produce 20-25,000 lb/hr of steam continuously.

What type/size of boiler needed to run these? To run both Elliotts and the one Skinner at 100% – 1,100 HP boiler 150#’s steam in – 10-15 psi out.

Given 150 PSIG, dry and saturated steam and an exhaust pressure of 0 (atmospheric to 5 PSIG). The water rate will be approximately 34 pounds/per kilowatt hour. Therefore, the 400KW Elliott will require 13,800 and the Skinner will require 10,350 and that will give a grand total of 700 boiler horsepower.

Low pressure or high pressure? The number is the same. The engine does not consume steam, only expands it. Four to 1 turn down rate.

Daily biomass material needed to operate? For a 700 horsepower boiler, it requires 128 pounds/minute of green fuel and 64 pounds/minute of dry fuel.

Initial maintenance needed

The main rod bearing of both engines needs to be re-poured and the crankpin on at least the Elliott needs to be turned.

Both engines and steam separators need to be abated.

FAQs and Info

  • Where is it located? Hall, Montana

  • Is this a closed loop system? Yes

  • What is the age? 1940’s

  • Are there manuals included with these? Yes

  • How many truckloads would it take to ship this system? Approx. 5

  • What is the heat source for the generators? Hog fuel. The woody biomass boiler is not for sale, although a boiler may be available from Mattachak Energy.

  • How much maintenance down time is normal for these units? Typically a few hours a month and a week a year — about the same as a wood-fired boiler

  • What are the physical dimensions? Approx. footprint each - 44’L x 20W’ x 10’H (flywheel diameter)

  • Building dimensions that system is housed in: 44’L x 40’W x 20’H

  • Do you have any idea of the thermal efficiency of these units? 38 lb steam/KWH = approx 38,000 BTU/kWh, but all these BTU's are still available for a heat load

  • Did you use a wood fired boiler? Yes

  • Is it currently setup and able to run? Yes

Contact: Tom Waddell at Forest Business Network through our contact form.



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