In this work, the long-life with high discharge burnup was achieved by using thorium or depleted uranium blanket loaded in the central region of the core. Kim, Jin Hyeong; Hong, Ser Gi [Kyung Hee University, Seoul Korea, Republic of One of the reasons for use of the lead or lead-bismuth alloy coolants is the high boiling temperature that avoids the possibility of coolant voiding.
LOSE FAT in 7 days (belly, waist \u0026 abs) - 5 minute Home Workout
Kim, Jin Hyeong; Hong, Ser Gi [Kyung Hee University, Seoul Korea, Republic of One of the reasons for use of the lead or lead-bismuth alloy coolants is the high boiling temperature that avoids the possibility of coolant voiding. Also, these coolants are compatible with air, steam, and water. Therefore, intermediate coolant loop is not rw fat burn 5 as in the sodium cooled reactors 3.
Lead is considered to be more attractive coolant than lead-bismuth alloy because of its higher availability, lower price, and much lower amount of polonium activity by factor of relatively to lead. On the other hand, lead has higher melting temperature of K than that of lead-bismuth Kwhich narrows the operating temperature range and also leads to the possibility of freezing and blockage in fresh cores.
Neutronically, the lead and lead-bismuth have very similar characteristics to each other. The lead-alloy coolants have lower moderating power and higher scattering without increasing moderation for neutrons below 0.
Kim, Jin Hyeong; Hong, Ser Gi [Kyung Hee University, Seoul Korea, Republic of One of the reasons for use of the lead or lead-bismuth alloy coolants is the high boiling temperature that avoids the possibility of coolant voiding. Also, these coolants are compatible with air, steam, and water. Therefore, intermediate coolant loop is not required as in the sodium cooled reactors 3.
Due to the above features of lead or lead-alloy coolants, there have been lots of studies on the small lead cooled core designs.
In this paper, small-safe long-life lead cooled reactor cores having high discharge burnup are designed and neutronically analyzed.
- Kuidas suua rasva
- Kulmad dussid soodustavad kaalulangust
- Боль в боку усилилась.
- Elektrikatkestuste kaart: andre rieu roman holiday cd msi bm pro m2 drivers client is king
- Kaalulangus pokside mangu ajal
The cores considered in this work rates MWt In this work, the long-life with high discharge burnup was achieved by using thorium or depleted uranium blanket loaded in the central region of the core. Also, we considered a reference core having no blanket for the comparison.
This paper provides the detailed neutronic analyses for these small long-life cores and the detailed analyses of the reactivity coefficients and the composition changes in blankets. The results of the core design and analyses show that our small long-life cores can be operated without refueling over their long-lives longer than 45EFPYs Effective Full Power Year.
In this work.
