Isomembrane® Overview    Power plant designers and operators are all to familiar with the problem of sealing the roof of pulverized fuel fired boilers against fly ash intrusion into the so called dead space on top of the boiler.   During heating up, cooling down and even in operation, the many steam and water tubes collecting here move in opposing directions due to thermal expansion. A durable metallic sealing has proven difficult to provide, as steel is very inelastic. Due to the differences in pressure, fluegas carrying flyash will enter through leaks into the dead space from the combustion chamber. The flyash will settle in the dead space and the flue gas will continue either to the second draft of the boiler or further out into the boilerhouse.   ISOMEMBRANE® technology was developed to deal with these problems. ISOMEMBRANE® is a flexible, elastic and ashtight seal composed of proprietary materials. ISOMEMBRANE® is considered the most advanced and efficient way to seal dead air spaces and can be applied to existing boilers, or new construction. ISOMEMBRANE® has been installed throughout Europe and the United States with great success.         Several consequences of Accumulated Fly Ash:  - Potential Safety Risks  - Loss of Energy  - Difficulty (Cost) In Removal for Maintenance  - Additional forced or Scheduled Outage Downtime  - The Risk of Boiler Roof Collapse Due to Additional Weight       High Temperature Technologies is the exclusive North American licensed provider of ISOMEMBRANE®.  HTT designs and installs ISOMEMBRANE® throughout the United States utilizing only certified ISOMEMBRANE® technicians.   ISOMEMBRANE® has proven its effectiveness for more than a decade in Europe, in powerplants ranging in capacity from 9Mw to 2,200 Mw. Our experience shows a lifetime of 8 to 12 years in an undisturbed environment. Please check out the articles outlining the performance and cost savings that are possible with ISOMEMBRANE® as well as a listing of systems already seeing the benefits of using it.   No Other Product Has Demonstrated A Similar Economical and Flexible Solution To This Problem. We'd be delighted to help!         High Temperature Technologies, Inc. 2175 Dunavant Street ▪ Charlotte, NC 28203 ▪ 704-375-2111 ▪ www.isomembrane.com