The John E. Green Company has established a quality assurance and control program to achieve performance in accordance with Section I of the ASME Boiler and Pressure Vessel Code and ANSI B31.1, governing the installation of power piping for fossil fuel-fired steam generating systems. We are qualified within the scope of the ASME "PP" (power piping) code stamp and are also members of the National Certified Pipe Welding Bureau. We have the welding procedures, quality assurance standards and the experienced supervisory personal to construct virtually all types of power piping systems, including:

The John E. Green Company was the prime contractor for two powerhouses in separate industrial plants located in metropolitan Detroit. We were responsible for complete mechanical installation, including all major equipment, fuel and process waste systems and all associated piping required in these facilities.

Each powerhouse supplies steam, water and compressed air for the plant's process, heating and cooling systems. Four coal-fired boilers supply a total capacity of nearly 700,000 pounds per hour of steam at 245 psi. Cooling is provided by three, 4000 ton steam-turbine-driven water chillers.

This innovative cogeneration system is serving as a model for municipal landfills throughout Michigan. At this Riverview facility, methane gas is collected with underground piping in the landfill and compressed to 200 psi to fuel a pair of package, turbine generator units. The gas-fired turbines produce 3.2 mW of electricity.

John E. Green has experience in performing powerhouse and cogeneration plant work. Our experience and ability to rapidly mobilize and manage our work force make us ideally suited to perform work whether the primary need is steam supply for heating, process, or power generation:

John E. Green has installed several cogeneration units like this one, being retro-fitted to an existing powerhouse for Eastern Michigan University. Here we installed a package, gas-fired turbine generator unit, which generates 3.6 mW of electricity. Exhaust gas from the gas-fired turbine is used to fire a 53,000 pound/hour waste-heat boiler, which is used for the campus building heating system.

Economizer installation, like this one on a 50,000 pound/hr boiler, can provide the owner with initial equipment cost paybacks in short time periods.

To meet air-quality standards, four baghouses were constructed as part of this industrial powerhouse by the John E. Green Company. Combined flow capacity of these units is in excess of 900,000 pounds of flue gas per hour.