Reactor design concept

Like the reactor-prototype BN-800 has a three-circuit flow scheme with sodium coolant in the primary and secondary systems and water-steam in the tertiary circuit (Fig. 9.25). The reactor plant comprises the fast nuclear reactor with three primary loops, three secondary loops and three steam generators of sectional-modular type. The reactor uses the 

6 - secondary sodium distributing header to SG, 7 - ERHR air cooler, 

Main design improvements and reactor plant features 

According to the main objectives and tasks adopted the following are the major development features of the BN-800 design. 

Enhanced reliability of components and extension of their operating life In the BN-800 design the reactor vessel supports (Fig.9.26) are nearer the reactor axis than in BN-600, 

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The first consideration in any design and optimization problem is to decide the boundaries of the system. A reactor can rarely be optimized without considering the upstream and downstream processes connected to it. Chapter 6 attempts to integrate the reactor design concepts of Chapters 1-5 with process economics. The goal is an optimized process design that includes the costs of product recovery, in-process recycling, and by-product disposition. The reactions are... 

A review of reactor design concepts by Berejka is in Reference 79. 

This section has presented a brief review of some of the important kinetic concepts encountered in reactor analysis, modeling, and control. These concepts must be understood within the context of how they affect reactor temperature control and other aspects of reactor control. We recognize that many excellent reference books on chemical reaction engineering are available. These books cover the topic of kinetics and a host of other reactor design concepts in extensive depth. Our intention is not to attempt to provide anything like the scope of that material, so we assume some familiarity with it. A short list of excellent reference books includes... 

Process intensification concepts and new reactor design concepts. 

Chemical vapor deposition and heterogeneous catalysis share many kinetic and transport features, but CVD reactor design lags the corresponding catalytic reactor analysis both in level of sophistication and in scope. In the following we review the state of CVD reactor modelling and demonstrate how catalytic reactor design concepts may be applied to CVD processes. This is illustrated with an example where fixed bed reactor concepts are used to describe a commercial "multiple-wafers-in-tube" low pressure CVD reactor. 

Looking at the currently active reactor design concepts, several common basic features could be summarized as follows ... 

Chapters 6 through 8 give an introductory look at the liquid metal cooled reactor system, the molten salt reactor, and also the small modular reactor systems. Chapter 9 introduces the Gen IV reactor design concepts that have been developed by the United States Department of Energy (USDOE). 

R. A. Krakowski, et al., "Fusion Power From Fast Imploding Liners," Fusion Reactor Design Concepts, Vienna (1978), IAEA-TC-145/21, p. 357. 

Step 2 is a review of the fundamental acceptability of the proposed reactor design concept within the UK regulatory regime, to identify any fundamental design aspects or safety shortfalls that could prevent the proposed design from being licensed in the UK. 

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