Case study plant layout

The preceding case studies have shown that gas explosion calculations inside realistic process plant layouts are possible, using the state-of-the-art 3D computer model, named EXSIM. The peak pressures found in the four chosen calculation cases are summarized in the following table ... 

CASE STUDY LAYOUT AND WAREHOUSE REQUIREMENTS FOR A 150,000,000 LB/YR POLYSTYRENE PLANT USING THE SUSPENSION PROCESS... 

In the case of plants located deep in rock, the studies and the solutions implemented follow either one of the following two possibilities location of the turbine-generator system at depth close to the reactor cavern or location of this system on the surface. Indeed, the turbine-generator system is less vital to safety than the reactor, the auxiliary building and the fuel building. Figure 21-2 shows the layout of the cavern power station SENA with the turbine-generator plant located on the surface. 

The process described above is used as a case study to demonstrate the feasibility of the proposed model. The production demands are shown in Table 1 and the time is defined in terms of unit time, which is 0.1 hour, in the schedule. Eight processing stations of six distinct types are considered and the relevant details are shown in Table 3. The plant layout in Fig. 2 is used. The tracks between stations are divided into 11 segments, which are 8 vertical tracks (VO - V7) and 4 horizontal tracks (HO - H3). The moving time for a vessel to pass each track segment is 0.1 hour. Buffers (B1 - B4) are placed in the cross points where vessels can wait for the next track segment to become available. The information on failed resource is provided by the user as shown in Table 2. 

Description of QRA analysis case study A hazard and operability study was used to identify hazardous scenarios arising from the process. These were qualitatively assessed and a risk ranking was established. With knowledge of the operational procedures and intended layout of the plant, the key potential accidents identified in the HAZOP have been rationalised for the purposes of the case study to ... 

Stringent regulatory requirements in the United States often require the incorporation of fish protection facilities at power plant intakes. There are three different concepts that can be used fish collection and removal, fish diversion, and fish deterrance. The incorporation of fish protection systems at specific sites can necessitate modifications to conventional intake designs. Such modifications can influence screen-well layouts and selection of screens and pumps, and in certain cases require model studies to develop design criteria which will ensure that fish protection facilities will be biologically effective and not adversely affect plant operations. 9 refs, cited. 

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