In the interest of prompt distribution, this report was not edited by the Technical. Information s@ff. " I. NOTICE lm report was prepared as an account of woik sponsored by the United States Government. Neithm the United States nor the United states Energy Research and Development Administration, nor any of their emPbYee% nor any of their contractorr, subntracton, or their employees, makes any-ntY, express or implied, or assumes any legal liability 01 responsibility for the accuracy, compktenes or usefulnes of any information, apparatus, product 01 PmceJJ d h h e d , 01 represents that its use would not infringe privately owned rights.
This testing was done primarily to determine the relative efficiency of various passive solar heating concepts and to obtain data that could be used to validate computer simulation programs. The passive solar systems tested were Trombe wall with and without selective absorber, water wall, phasechange wall, direct gain, a heat-pipe collector, and two sunspace geometries. The heating load coefficient of these cells was roughly 26 Btu/h OF and the collector area was 23.4 ft2, giving a load collector ratio of approximately 27 Btu/OF day ft2.
MASTER 18. Estimate of the thermal radiation from the surface of an aluminum or a titanium pressure vessel 19. Block diagram of external region cooling in series with the tie tubes and periphery cooling 20. Block diagram of separate cooUng circuit for external regions 21. Maximum fuel temperatures using special elements at various closed-cycle power levels, hydrogen coolant 22. Special element exit gas temperatures for Fig. 21 cases 20 23. Maximum fuel temperatures using special elements at various closed-cycle power levels, helium coolant 21 24. Special element exit gas temperature for Fig. 23 cases 25. Block diagram of flow paths using special elements and parallel cooUng of other reactor regions 26. Block diagram of flow paths using special elements and series cooling of other reactor regions 27. Performance hmit curves for heat pipe 28. Brayton component mass as a function of electric power level 29. Brayton cycle power-conversion subsystem mass as a function of electric power level and turbine inlet temperature 30. Mass comparison of 10-MWe dual-mode and independent nuclear propulsion/power systems TABLES I-A. Lithium Heat Pipe Input for HTPIPE I-B. Summary of Output Generated by HTPIPE II. Component Specific Masses for a 10-MWe Man-Rated Power System III. Assumptions Used to Calculate Component Masses for Dual-Mode
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