Peruttu

Plutonium formation - chemistry : Urgent

SE3500 Tutorial 5 Plutonium formation and use. Data: For 235U ?capture235 =101 b ; ?f235 = 579 b For 238U ?a238 = 2·72 b For 239Pu ?capture239 = 271 b ; ?f239 = 749 b A reactor contains U kg of 235U, P kg 239Pu H kg of 238U The neutron flux is ? × 1016 neutrons m-2s –1 We consider for the present question U and P varying with time but ? and H as constant. Take ? = 10 and H = 100 103 kg Q1 Show that the rate of loss of 235U is given by dU dt = – k1 ? U in kg/thousand hours where k1 = 0·00245 Q2 Show that the rate of loss of 239Pu is given by dP dt = – k2 ? U in kg/thousand hours and determine the value of k2. Q3 Show that the rate of creation of 239Pu is k3 ? H in kg/1000 hrs and determine the value of k3 Q4 Prove that in this case if P(0) = 0 and U(0) = 715 U(t) = 715 exp(– 0·02445 t) and P(t) = 266·7 [1 – exp(– 0.245 t) ] with t in units of 1000 hrs. Make a sketch graph showing how P(t) and U(t) vary with time. Q5 Find the power outputs at the start and after 1 year, After one year what is the ratio of power from 239Pu to that from 235U fissions ?

Taidot: Kemiantekniikka, tekniikka, Materiaalitekniikka, Tieteellinen tutkimus

Näytä lisää: show rate loss 235u given, rate loss 235u, what is dp, what is a dp, what graph to use for data, use case tutorial, use case creation, tutorial use case, tutorial power, tutorial graph, tutorial find, power tutorial, how to graph scientific data, how to find a research question, how to dp, graph tutorial, flux tutorial, dp one, dp 5, data power tutorial, se3500 tutorial, se3500 tutorial plutonium formation, absas, urgent p, research p

About the Employer:
( 88 reviews ) Delhi, India

Projektin tunnus: #4288197

1 freelanceria on tarjonnut keskimäärin 50 $ tähän työhön

Wernyhora

PhD in chemistry.

50 $ USD 2 päivässä
(21 arvostelua)
5.5