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Session: Parallel Session: Working fluids
Session starts: Friday 23 September, 14:00
Presentation starts: 15:00
Room: Senaatszaal

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Matthias Schopf ()
Guillermo Botti ()

Abstract:
ORC technology power plants using heat transfer fluids (HTF) as organic heating media are widely recognized as highly reliable and safe. Key factors responsible for the huge growth of this industry include: waste heat availability, feed-in incentives and bankable technology. The success of the ORC sector is related to a quick return on investment which is directly linked to a continuous and trouble free plant operation thus maximizing incomes while keeping operational costs minimized. In such context heat transfer fluids play an essential role representing a component that is in contact with both the heat source and the ORC module. Control of the HTF in-service quality can help to monitor operation conditions of the whole plant and facilitate corrective actions ahead of problems. All heat transfer fluids are subject to degradation, which means modification of its original molecular composition can occur. Over time, thermal stress of the fluid may result to the extent it will not be able to safely and efficiently convey the heat from the source to the user. Excessive fluid degradation can lead to higher maintenance works and reduced fluid life, thus increasing the investment return time. Reasons for this excessive degradation may include choosing a fluid with less than adequate thermal stability, operational problems or procedures in the plant, or defects in heater or system design. An accurate HTF system design and regular monitoring of fluid conditions will help to prevent unexpected system troubles and unsafe operating conditions thus enabling operators to provide timely solutions and begin corrective actions. The requirements of an ORC plant require specific properties of the HTF used in this technology. Therminol® heat transfer fluids have been used from the start of ORC power production until today. The proven track record of these fluids contributes to reliable and smooth plant operations. * Copyright 2011 Solutia Inc. ® Registered trademark of Solutia Inc. Notice: Although the information and recommendations set forth herein (hereafter “information”) are presented in good faith and believed to be correct as of the date hereof, neither Solutia Inc. nor any of its affiliates, including Solutia Europe BVBA, makes any representations or warranties as to the completeness or accuracy thereof and assumes no obligation to update any of the information. Information is supplied upon the condition that the persons receiving same will make their own determinations as to its suitability for their purposes prior to use. In no event will Solutia Inc. or any of its affiliates, including Solutia Europe BVBA, be held responsible for damages of any nature whatsoever resulting from the use of or reliance upon information or the product to which information refers. Nothing contained herein is to be construed as a recommendation to use any product, process, equipment or formulation in conflict with any patent, and neither Solutia Inc. nor any of its affiliates, including Solutia Europe BVBA, makes any representation or warranty, express or implied that the use thereof will not infringe any patent. NO REPRESENTATIONS OR WARRANTIES, EITHER EXPRESS OR IMPLIED, OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR OF ANY OTHER NATURE ARE MADE HEREUNDER WITH RESPECT TO INFORMATION OR THE PRODUCT TO WHICH INFORMATION REFERS