EPRI-NP-616 TABLE 11 235U DECAY HEAT AND UNCERTAINTIES FOR 4-HOUR IRRADIATION RUN No. 3 FISSION RATE= 1.116 x 10^12 fissions/sec +/- 1.91% COOLING TIME DECAY HEAT POWER SIGMA (sec) (WATTS) (MEV/S)/ (FISS/S) (%) 11 1.595 8.922 22.7 20 1.469 8.216 17.5 40 1252 7.003 11.1 50 1.169 6.540 7.3 70 1.41 5.821 6.4 100 0.9119 5.100 5.7 200 0.7195 4.024 4.0 400 0.563 3.149 3.4 600 0.4513 2.524 3.5 720 0.4424 2.474 3.4 1020 0.3778 2.113 3.4 1980 0.2682 1.500 3.4 3000 0.2163 1.210 3.4 4980 0.1462 0.8175 3.4 7020 0.1119 0.6256 3.4 10020 0.08361 0.4676 3.4 19980 0.04066 0.2741 3.4 30000 0.02639 0.1476 9.6