Estimate the decay heat rate in a 3000 MWth reactor in which 3.2% mU-enriched(adsbygoogle = window.adsbygoogle || []).push({});

U02 assemblies are being fed into the core. The burned-up fuel stays in the core for 3 years before being replaced. Consider two cases:

1. The core is replaced in two batches every 18 months.

2. The fuel replacement is so frequent that refueling can be considered a continuous process. (Note: The PHWR reactors and some of the water-cooled graphite-moderated reactors in the Soviet Union are effectively continuously refueled.)

Compare the two situations at 1 minute , 1hour, 1day, 1month, and 1year.

I would really appreciate some help.

I am supposed to use the following equation

P/Po =0.066((t-ts)^-0.2 - t^-0.2)

But i don't understand what t is in case 1 and case 2.

Thanks

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Effect of continuous refueling on decay heat

Loading...

Similar Threads for Effect continuous refueling |
---|

PWR Refueling Systems and Procedures |

Doppler effect neutron absorption |

**Physics Forums | Science Articles, Homework Help, Discussion**