Plant design criteria

C.H.Tate, RJX Trussell, The Use of Particle Counting in Developing Plant Design Criteria, Journal AWWA.58, No. 12, pp. 691-698 (1978). 

O Hara, J. and Bela, A., Fischer-Trospch plant design criteria, Chem. Eng. Prog.. 73 141-143, (1977). 

Steam Reforming of Natural Gas in a Reformer and Membrane Modules Test Plant Plant Design Criteria and Operating Experience... 

A detailed checklist for the plant design criteria can run to 50 pages or more and varies with the type of process most organizations that deal with plant construction or design have their own checklist. The essentials of a checklist (a checklist checklist ) have been included as Appendix 2. 

Evidently, the questions cannot properly be answered without an initial understanding of the plant design criteria in terms of specified overall performance requirements but, aside from these, the content of the plant design criteria should itself be a subject for value engineering to gain the maximum benefits. 

To minimize the require development program associated with the SSR, the use of a high-alloy steel for a core jacket was selected. There were two consequences of selecting this clad material on the reactor design. First, the selection of clad determines the temperature at the core/clad boundary and thus sets certain balance-of-plant design criteria. Second, given that the SSR concept is based on a monolithic right circular cylinder, a system to shut down the reactor should be located external to the core to maximize the temperature of the coolant at the exit from the reactor. 

Optimization techniques are procedures to make something better. Some criteria must be established to determine whether something is better. The single criterion that determines the best among a number of alternatives is referred to as the performance index or the objective function. Economically, this is the expected profit for a plant design. It may be expressed as the net present value of the project. 

Fluidity can be assumed to stay constant when scaling up an enzyme-substrate system, provided that solutions of identical composition are used for the laboratory-scale model and the full-size plant design. Application of the design criterion in Eq. (19.36) assumes operation in the linear regime of transmembrane pressure AP up to about 1-2 bar, as described in Chapter, Section 8.5.1, Eq. (8.78), so that... 

The acceptance criterion for GSI 022 is that new plants shall minimize the consequences of inadvertent boron dilution events by meeting the intent of SRP Section 15.4.6. Specifically, when performing a safety analysis to evaluate the consequences of an inadvertent boron dilution, plant designers should consider (1) design limits for maximum RCS pressure and minimum DNBR, (2) moderate frequency events in conjunction with a single failure or operator error and their possible effects on fuel integrity and radiological dose calculations, (3) and time limits specified for each mode of plant operation, if operator action is required to terminate an inadvertent boron dilution. 

The overall acceptance criterion for the resolution of USI A-36 is that the nuclear plant design shall consider the effects of the movement of heavy loads over spent fuel and equipment important to achieving and/or maintaining safe shutdown of the reactor, consistent with the guidance of the Standard Review Plan 9.1.5 (Reference 2). 

The acceptance criterion for the resolution of GSI B-61 for future plant designs is that the Technical Specification LCO surveillance periods and allowable outage times of ECCS equipment shall be developed in accordance with current industry practice. 

The acceptance criterion for the resolution of GSI C-4 is that the plant designer must use and meet one of the two ECCS evaluation methods described in 10 CFR 50.46 (as stated above). 

The acceptance criterion for the resolution of GSI II.c.4, is that plant designers or owner-operators shall perform a PRA. Consistent with the Standardization Rule (10 CFR 52), the assumptions and results of the PRA must be appropriately addressed in an owner-operator reliability program which incorporates such features as determining system availabilities, identifying high component failure rates, determining basic causes for component failures, and identifying possible corrective actions. 

The acceptance criterion for the resolution of GSI II.D.3 is that the plant design shall include safety and relief valve indication in accordance with the guidance given in NUREG-0737. This indication shall have the following design features ... 

The single failure criterion shall be applied to each safety group incorporated in the plant design. 

Criterion 1. Responsibilities in the management of plant design Applicant shall be responsible for ensuring that the design meets aU applicable safety and security requirements. 

Criterion 2. Management system for the plant design Quality assurance (QA) requirements should extend beyond design considerations to address training of personnel, include a corrective action program, and address an inspection and test control program. 

Criterion 3. Safety of the plant design throughout the hfetime of the plant Applicant should retain QA responsibility for tasks that are assigned to external organizations for design of specific parts. 

Criterion 42. Safety analysis of the plant design Anticipated operational occurrences (AOOs) and DBAs are evaluated in the safety analysis and include design of a physical protection system to protect against malevolent acts. 

The capacity of the plant is to be increased to 10,000,000 lbs/ year, with the same fractional conversion of A. Propose a reactor system that will do the job, and specify the volume of any additional reactors that you add. The system should include the existing CSTR. Minimizing the additional reactor volume is a sufficient design criterion. Assume that the new reactor system will operate isothermally at 550 °F. 

To interpret the single failure criterion as defined in the Requirements for Design, the criterion shall be applied to each safety group incorporated in the plant design. Safety group is defined as that assembly of equipment (frequently referred to as a train ) which performs all actions required after a PIE in order that the limits specified in the design basis for that event are not exceeded (Ref. [1], para. 5.34). 

The minimal cost of equipment was used as the criterion in the design of the plant, which was to be operated in a non-overlapping mode. For a plant consisting of MB true batch units (MS = 3) and MS semi-continuous units (MS = 5) which are grouped in MST semi-continuous trains (MST = 3), the cycle time is given by Eqn. (7.4-10). Combining this expression with Eqn. (7.4-22) and rearranging yields ... 

---