CASE STUDIES

	Tradewinds of VA's Steam Turbine (click on photo to enlarge)

DESIGNED COGENERATION PLANT FOR TRADEWINDS OF VA. LTD.

Cogenerated electricity saves 87% on their annual electric bill. Increased gasification tax credits improve savings an additional 52%.

rem ENGINEERING , Inc. custom designed a cogeneration system for Tradewinds of VA. Ltd., a progressive lumber company located in Bumpass, Virginia. By operating the existing gasifier at its maximum, safe, steam load, we maximized the federal gasification tax credits and maximized electric generation. Electricity is generated using a Murray "K" type condensing steam turbine generator and a Coppus topping turbine generator. An evaporative condenser was used in place of the conventional cooling tower system. The generated electricity is utilized "inside the fence", thus offsetting purchased electricity from the local utility. The combined annual savings creates a project with under a 1½ year simple payback.

Tradewinds of VA. Ltd. recently purchased a new dry kiln. Tradewinds' dry kiln operates on low pressure steam. At the start of a new batch, the dry kiln requires a high steam load to rapidly bring the temperature inside the kiln up to the set point. Once the set point is reached however, the steam demand is dramatically reduced, requiring only enough steam to maintain temperature. The large fluctuation in steam load presents a terrific opportunity for cogeneration.

Mr. Lanny Woolfolk, President and C.E.O. for Tradewinds of VA. LTD., has agreed to serve as a reference for rem ENGINEERING. We are pleased to provide his phone number upon request. A visit to Tradewinds' facility can be arranged.

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