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XXII-11 shows the plant layout for a 4-module MDP plant producing 1300 MW. Each reactor has its own turbine generator because considerations are given to the first operation of each module to assure the independence of each module. The control building, the fuel transport equipment, etc., are commonly used.

XXII-13 is a schematic of SSTAR coupled to the S-CO2 Brayton cycle showing the heat transfer paths as well alternative control mechanisms for the S-CO2 Brayton cycle. To facilitate S-CO2 Brayton cycle components to be isolated for replacement, maintenance, or repair, a shutdown cooling compressor to circulate CO2 through the in-reactor heat exchangers and a shutdown cooler to reject decay heat is provided.

XXII-5.—Induced polarization of sphere in an external field.

XXII-7 shows the SSTAR core map. The fuel lattice consists of cylindrical fuel rods arranged on a triangular pitch A central two low enrichment zones blanket, the three enrichment zones, and locations for shutdown and control rods are indicated in the figure.

XXII-8.—Electronic charge density represented by contours, foi two attracting atoms.

XXII-9.—Interaction energy of two hydrogen atoms, as a function of the distance of separation, attractive state, with molecular formation.

XXIII-1.—The sodium chloride structure.

XXIII-2.—Tho caesium chloride structure.

XXIII-3 , the latter looking straight down along the vertical leg of the tetrahedron, so that the ion at the center and that directly above it coincide in the figure. Then in the diamond structure, the next layer up is just like that shown, but shifted along so that atoms like a, 6, c coincide with a, c. The wurtzite structure, on the other

XXIII-7 shows the dependency of the S-CO2 Brayton cycle efficiency upon the core inlet temperature. In the calculations, the heat exchanger tube height is chosen to satisfy the peak cladding temperature constraint of 650 C. It is confirmed that a fuel rod outer diameter of 1.30 cm and an inlet temperature of 438 C maximize the Bra don cycle efficiency.

XXIII-9 above shows a schematic illustration of the STAR-LM coupled to its S-CO2 gas turbine Brayton cycle. A cycle efficiency of 45 is calculated. A key contributor to the high efficiency is the low amount of work to preheat the S-CO2 before it is returned to the in-reactor heat exchangers that are immersed in the lead coolant. This further contributes to an increase in cycle efficiency.

XXIL A proposed back-biting mechanism for the metathesis polymerization of alkynes. Substituents have been omitted for clarity.

XXIV-1. Germ Cell Malignancies

XXIV-10 depicts a process flowchart for decontamination of the PEACER fuel assembly hardware and fuel claddings with electro-polishing.

XXIV-13 shows a side view of the concrete reactor building, its earthen mound cover and the reactor vessel emplaced below grade in a concrete silo within the reactor building. The reactor building s function is to protect the reactor silo and reactor head from the natural elements, to contain ancillary reactor support equipment and to provide operating floor space for refuelling operations. It has no containment function.

XXIV-14 depicts the cross-section of a single fuel assembly of the PEACER-550 each fuel assembly consists of 196 fuel rods creating a 14x14 rectangular array. Figure XXIV-15 gives the cross-section of a single fuel assembly of the PEACER-300 each fuel assembly is made up of 180 fuel rods and 9 skeleton rods in a 17x17 rectangular array.

XXIV-21 illustrates the heat removal pathways provided for normal and upset conditions.

XXIV-23 illustrates some of the proposed approaches to those topological issues. Twin plants are laid out as mirror images on each man-made peninsula - water on three sides

XXIV-23 shows one segment of a potential layout for a multi STAR-H2 site on a

XXIV-23 shows the routing of input, output and internal mass fluxes. Fresh seawater enters the site from the open ocean into the man-made harbour and then moves down the canals separating the peninsulas. These canals feed the desalination plants brine exits to the right into a brine collection canal running between the BOPs and reactors. This brine discharge canal circles around the reactors. This circuitous route is taken to avoid the need for multiple bridges under the heavy capacity railroad in Fig. XXIV-23. The brine is rejected from the desalination plant at 10 C above the seawater inlet temperature - a normal practice for desalination plants - and the extended travel time of the brine from BOP back to the ocean allows opportunity for further cooldown of the brine before return to the sea. Alternately, that heat and brine may be put to profitable use such as heating acres of greenhouses or perhaps shellfish beds.

XXIV-3.—Layer of molecules in I2 structure.

XXIV-4 illustrates the thermal-hydraulic characteristics of the PEACER core. The temperature distribution shows that the maximum coolant temperature of 460 C exceeds the specified design temperature range . Figure XXIV-5 shows the relative fuel rod power distribution in the hottest assembly.

XXIV-6 schematically shows the PEACER primary system with a nodal scheme for pressure drop calculation. Flow velocity data for the pressure drop calculation have been determined under steady state normal operation. The primary pressure drop distribution is

XXIV-l.—The face-centered cubic structure, view of successive planes looking along the cube diagonal, illustrating the close-packed nature of the structure.

XXIX-1.—Potential energy of an electron in a periodic field representing a crystalline solid.



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