Bases for Design

Review the design bases for unit relief vjKc and the flare system to ensure ihal they are siil valid... 

Estimated installed capital costs are shown in Table III and estimated operating costs are given in Figure 5 and Table IV for the production of hydrogen from heavy fuel oil by use of the SGP and Sulfinol units along with CO-Shift, C02-Removal and Methanation units. The design bases for the process economics case are described below. 

ANSI/ANS-54.2-1985, "Design Bases for Facilities for LMFBR Spent Fuel Storage in Liquid Metal Outside the Primary Coolant Boundary."... 

Design Bases for Protection Against Natural Phenomena 2... 

Appendix 5A presents the design bases for sizing the overpressurization protection system. The loss of load transient which is used to size the primary safety valves is not intended to be used as a design transient for any other NSSS equipment. 

Design Bases for Mounting of RCPB Pressure Relief Devices... 

Design Bases for Normal Residual Heat Removal System Operation ... 

For the regulatory review, the most important document to be included in a construction licence application is the preliminary safety analysis report (PSAR). It should define the design bases for the facility and include a detailed description of the site, facility and its operation. The PSAR should also include a safety assessment that is based on the design bases and specifications of the plant, site specific data and safety regulations and guidelines, if available. Occupational and public... 

Design bases for plant systems are identified in safety analyses reports. In most countries, technical specifications control the operation of the plant and the degree to which departures from the design bases are acceptable. For example the design bases may specify that safety systems operate assuming a single failure, while the technical specifications allow limited periods of operation when a safety system cannot withstand a single failure (e.g. one of two safety trains is not operable). 

For older plants, the design bases for the systems may not have been documented or maintained. A number of plants have undertaken efforts to reconstitute their design basis. 

Design bases for mechanical, thermal and chemical design of reactor materials important to safety ... 

Design bases for equipment qualification for natural events, environmental conditions, fire protection and external hazards ... 

A.212. This section should describe the design bases for qualification of components to resist such environmental factors as vibration, thermal expansion, radiation, corrosion, dynamic effects, mechanical loadings and high pressure, high temperature, humidity, water, steam, chemicals, low temperature or vacuum. Qualification tests and analyses that have (or will be) performed should be described. 

A. 1001. This chapter shall provide information concerning the auxiliary systems included in the facility. A description of each system, the design bases for the system and for critical components, a safety evaluation demonstrating how the system satisfies the requirements of the design basis, the testing and inspection to be performed to verily the system capability and reliability, and the required instrumentation and... 

In general, design qualification is an accepted practice for protection against external events once siting questions have been resolved (i.e. if the site does not present hazards for which there is no adequate protection). The method for establishing the design bases for particular external phenomena can be summarized as follows ... 

According to the IAEA Research Contract No. 5762/Rl/RB, tow types of devices were developed in the last year that will be used to decontaminate the small items and the internal surface of metal pipe. Necessary data and experiences will be gained with the decontamination experiments. The purpose of the experiments are to demonstrate the feasibility of those devices developed, and to provide designing base for practical devices. 

Figure 7.1 [1] shows the thermal design bases for the Super FR. It is similar to Fig. 2.13 for the Super LWR. The most bottom state denotes the core average condition with the outlet temperature of 500°C as a target value and with the average linear heat rate of 17 kW/m. 

Fig. 7.1 Thermal design bases for the Super FR. (Taken from [1])...

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