On the dynamics and control of a polymer film compact heat exchanger |
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| Institution: | 1. PVcomB, Helmholtz-Zentrum Berlin für Materialien und Energie, Schwarzschildstr. 3, 12489 Berlin, Germany;2. Institute for Silicon Photovoltaics, Helmholtz-Zentrum Berlin für Materialien und Energie, Kekuléstraße 5, 12489 Berlin, Germany;1. Dubai Hospital, Dubai, United Arab Emirates;2. Osmania Medical College, Hyderabad, India;3. Rashid Hospital, Dubai, United Arab Emirates;4. Sanofi, Paris, France;5. Sanofi-Aventis (China), Chaoyang District, Beijing, China;6. American University of Beirut Medical Center, Beirut, Lebanon;7. Rambam Medical Center, Haifa, Israel;8. University Hospital Birmingham & Institute of Translational Medicine, Edgbaston, Birmingham, UK;1. Allergy/Immunology Clinic, 56th Medical Group, Luke Air Force Base, Ariz;2. Division of Allergy & Immunology, Department of Internal Medicine, Naval Medical Center San Diego, San Diego, Calif |
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| Abstract: | Process intensification has the potential to change the state of the chemical and process industries. The polymer film compact heat exchanger (PFCHE) is a new type of intensified heat exchanger. The potential market is seen as being large 1] but as yet the unit has not been adopted by industry. The advantageous heat transfer characteristics of such a unit have been shown in previous work 2]. This work investigates the dynamic behaviour of the PFCHE and the process control problems that may arise.The PFCHE available at Newcastle University has been used to generate dynamic temperature data. The data have been employed to formulate and validate time series type models. These models were then used in simulated process control studies. The dynamic behaviour of the unit appeared to be linear and response times were quick. It was found that the responses of the model to disturbances in inlet temperatures could be controlled well using a digital form of PI control. There were, however, doubts as to the ability of the model to completely replicate the system. |
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