OPERATION OF THE HRT MOCKUP WITH BOILING FUEL IN A TITANIUM PRESSURIZER, RUN CS-23
The 0.045 m UO/sub 2/SO/sub 4/, 0.036 m CuSO/sub 4/, 0.025 m H/sub 2/SO/ sub 4 solution (HRT fuel composition) was chemically stable during 1,866 hr of operation at 280 C and 1500 psi. The system was pressurized by boiling a 0.4 gpm stream of the fuel in a titanium heat exchanger at 313 C. During cursions were made to pressurizer temperatures above 330 C where two liquid phases were formed. These tests indicated that heavy phase began formation at 325 C (vapor pressure equilibrium temperature) as evidenced by loss of fuel from the circulating stream, Good heat transfer excluded the possibility of the missing material depositing in the form of a scale in the heat ex hanger. In each test the original fuel composition perature was lowered below 325 C. The generalized stainless steel corrosion rate during operation at 280 C and 1500 psi was 0.6 mpy for the first 700 hr and 1.6 mpy for the next 1166 hr. The average rate during the period when excursions were made into the two-phase region was 3.0 mpy. The apparent increase in corrosion rate is not easily explained because no unusual attack could be found on inspection of the stainless steel surfaces, particularly in the vicinity of the titanium heat exchanger. Boiling fuel solution in a titanium heat exchanger appears to be a practical source of steam for pressurizing an aqueous homogeneous reactor. (auth)
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- US Atomic Energy Commission (AEC)
- DOE Contract Number:
- W-7405-ENG-26
- NSA Number:
- NSA-13-014874
- OSTI ID:
- 4249750
- Report Number(s):
- CF-59-5-13
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-59
- Country of Publication:
- United States
- Language:
- English
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