Engine Cogeneration White Paper

Engine Cogeneration System Summary

Engine cogeneration reduces energy cost by capturing valuable heat from engine combustion that typically escapes up the exhaust stack and into the atmosphere. This recovered BTU is transferred back into heat sinks such as water, glycol, steam production and other thermal fluids. Cogeneration combustion fuels used include natural gas, propane, digester gas, diesel fuel and light to heavy fuel oils.

Engine Cogeneration White Paper

Engine Cogeneration Facts

Engine (standalone):
  • Engine exhaust stack energy loss is 100%.
  • Engine exhaust temperature exiting into the atmosphere is 600°F to 1,600°F.
Engine with Cogeneration Installed:
  • Tremendous fuel savings typically pay for cogeneration equipment within 1 to 3 years (average use).
  • Pollution is reduced due to lowered fuel usage.
  • Significantly reduced sound output levels (final sound attenuation is typically 15 - 25 dBA).
  • Lower exhaust temperatures are released into the atmosphere.

Exhaust Steam Generators

  • 20 to 500 boiler horsepower
  • 3 to 450 psig operating steam pressure
  • 98% dry steam at saturated steam temperatures
  • 5 minute startup to operating steam pressure
  • 1⁄2 the size and 1⁄3 the weight of conventional waste heat boilers
  • Fully automatic for primary or supplemental steam output source
  • Explosion proof heat transfer exchanger design
  • Internal exhaust bypass accepts dual engine exhausts
Engine Cogeneration Exhaust Steam Generators

Exhaust Heat Recovery Silencers

  • Sound attenuation
  • Silencer designs and sizes to accommodate virtually any retrofit application
  • 15 to 4,000 kw (20 to 50,000 scfm) combustion capacity
  • Heavy-duty construction
  • Horizontal and vertical exhaust flow connections
  • Exhaust bypass assemblies
Engine Cogeneration Silencers

Cain Industries Overview

Cain Industries is the leading designer and manufacturer of industrial exhaust heat recovery systems. They offer over 3,450 industrial exhaust heat recovery models within their 16 product lines. These systems integrate seamlessly into any boiler, cogeneration or incineration exhaust system. Cain's core product lines consist of:

Boiler Economizer Systems
An extensive line of boiler exhaust economizers designed to recover exhaust waste heat (BTU) typically lost through the stack to preheat boiler feedwater, makeup water, process water and other thermal fluids for boilers ranging from 200,000 BTU input - 150,000 PPH steam.

Gas & Diesel Cogeneration Systems
Exhaust heat recovery for gas and diesel engines, gas turbines, and micro turbine generator retrofit applications from 30Kw-7Mw.

Fume Incineration exhaust heat recovery Systems
Fully automatic exhaust steam generators that recover large volumes of clean combustion exhaust (600°F to 1600°F) and transform it into a steam source (primary and/or secondary).

Spiral Finned Tubing
An abundant range of custom-fabricated, industrial-grade finned tubing that is manufactured to meet the stringent customer requirements.