A mathematical representation for a polycrystalline, thin-tape, ferromagnetic metal is derived for the operating conditions found during flux resetting in a magnetic amplifier. The starting point for the derivation is the dynamic behavior of the magnetization process in ferromagnetic single crystals reported in the literature. The general reactor representation is simplified to a form which is ...

Stabilization of the ‘‘resistive shell mode’’ is vital to the success of the ‘‘advanced tokamak’’ concept. The most promising reactor relevant approach is to apply external feedback using, for instance, the previously proposed ‘‘fake rotating shell’’ scheme @R. Fitzpatrick and T. H. Jensen, Phys. Plasmas 3, 2641 ~1996!#. This scheme, like other simple feedback schemes, only works if the feedbac...

The design and the construction of an actual 8.7-m3 pilot/full-scale biotrickling filter for waste air treatment is described and compared with a previous conceptual scale-up of a laboratory reactor. The reactor construction costs are detailed and show that about one-half of the total reactor costs ($97,000 out of $178,000) was for personnel and engineering time, whereas approximately 20% was f...

Introduction In our everyday life we operate chemical processes, but we generally do not think of them in such a scientific fashion. Examples are running the washing machine or fertilizing our lawn. In order to quantify the efficiency of dirt removal in the washer, or the soil distribution pattern of our fertilizer, we need to know which transformation the chemicals will experience inside a def...

The monitoring of detailed 3-Dimensional (3D) core power distribution is a prerequisite for the operation of nuclear power reactors to ensure that various safety limits imposed on the fuel pellets and fuel clad barriers, such as the Local Power Density (LPD) and the Departure from the Nucleate Boiling Ratio (DNBR), are not violated during the reactor’s operation. The LPD and DNBR need to be cal...

The International Atomic Energy Agency convened, in the framework of its Fusion Technology and Engineering Programme, the 4th Technical Committee and Workshop on Fusion Reactor Design and Technology at Yalta, USSR, from 26 May — 6 June 1986. This report contains all summaries of sessions that were organized during the workshop. The papers presented at the meeting are being published by the Agen...

Swarm Optimisation and Genetic Algorithms applied to a Three-Phase Slurry Catalytic Reactor Mylene C. A. F. Rezende, Caliane B. B. Costa, Delba N. C. Melo, Adriano P. Mariano, Eduardo C. Vasco de Toledo, Rubens Maciel Filho School of Chemical Engineering University of Campinas, UNICAMP P.O. Box 6066, Zip Code 13083-970, Campinas-SP, Brazil E-mail address: [email protected] Petrobras S...

iii ACKNOWLEDGEMENTS I would like to thank my parents for providing me with a loving and supportive environment which cultivated my love for science and the drive to pursue it; my advisor, Professor Stacey for his insight, guidance, and reassurance throughout my introduction to the discipline of nuclear engineering; Professor Petrovic who helped refine my understanding of reactor physics; the p...

This paper investigates whether a fusion power plant could be designed to be passively proliferation-proof. Even low neutron production rates enable fissile-fuel breeding, so such a fusion reactor must burn neutron-lean fuels. To burn these fuels economically requires a highpower-density fusion concept, and a D-He field-reversed configuration will be analyzed here. The paper discusses physics a...