Appendix 



PRELIMINARY DESIGNS OF SELECTED 

 UNDERWATER POWER SYSTEMS 



SELECTED SYSTEMS 



The underwater power systems selected for preliminary design were: 



1. 100-kw in-situ power systems emplaced on the ocean floor at 

 depths of 600 feet and 6,000 feet. 



2. 30-kw surface-tendered power systems for supplying power to 

 ocean depths of 600 feet and 6,000 feet. 



3. 300-kw shore-based power systems for cable lengths of 1 miles 

 and 50 miles. 



100-kw Nuclear Reactor In-Situ Power System 



The in-situ plant selected for a preliminary engineering analysis 

 consists of a power module, a load module, a foundation, and auxiliary equip- 

 ment, as illustrated in Figure A-1. Trim and ballast components, as well as 

 winches, would be provided as the required auxiliary equipment. 



A design concept of a 

 100-kw in-situ power plant 

 module is shown in Figure 

 A-2. The plant consists of a 

 nuclear steam generator and a 

 Rankine cycle turbine genera- 

 tor system rated for 100-kw 

 net power. The steam genera- 

 tor selected was based on 

 General Atomics TOPS-300 

 power supply. It features 

 light water cooling in a pres- 

 surized primary coolant loop. 

 The secondary steam system 

 provides steam on load demand 

 to a high-speed turbine which 



would be geared to a 60-Hertz 



Figure A-1. In-situ nuclear reactor power 

 electric generator. plant. 



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