Clearly write down all the a!m"tion yo! make# The $i%!re and contant yo! wo!ld need are %i&en#
1) '(0) List 10 design features of the European Pressurized Reactor. 2) '20) In a particular reheat-cycle power plant saturated stea! "at #$$ o%) enters the high-pressure tur&ine at 1000 psia and e'pands to 200 psia after which it is reheated to #$$ o%. (he stea! is then e'panded to 1 psia. Liuid lea*es the condenser as saturated liuid and pu!ped &ac+ to 1000 psia. Each tur&ine is adia&atic with an isentropic efficiency of , and the pu!p efficiency is ,2. If the total power output of the tur&ines is /.#'10 tuhr calculate a. (he (he 3ass 3ass flow flow rate rate of stea stea! ! &. (he 4ycle efficiency c. (he 4arn 4arnot ot eff effici iciency ency for this this cycle. cycle. d. 5raw 5raw the (-s (-s diagra diagra! ! for the the syste syste! ! Thermodynamic *ro"ertie+ (000#0 "ia (sat 6 #$$ o% νf 6 0.0217 ft/l&! νg 6 0.$$#7 ft/l&! hf 6 6 #$2.$ tul&! hg o o 6 1181., tul&! sf 6 6 0.$/0 tul&! % sg 6 1./,8 tul&! % 200#0 "ia (sat 6 /,1.8 o% νf 6 0.01,/ ft/l&! νg 6 2.2,, ft/l&! hf 6 6 /##./7 tul&! o o hg 6 118,.$ tul&! sf 6 6 0.#$/# tul&! % sg 6 1.#$#/ tul&! %
/) '25) ; hea*y water !oderated heterogeneous reactor has the pellet dia!eter of 0.$ in. (he fuel rod dia!eter is 0.$# in. and the a*erage ther!al neutron flu' is 1.#'101/ neutsc!2-s. (he nu!&er density for <2/# is .0 ' 1020 and !oderator te!perature is #00 o%. %or this reactor calculate the a*erage *olu!etric heat generation rate and a*erage fuel rod surface heat flu'. ;ssu!e that the !oderator is changed to light water with and ato!ic ratio for <2/#= of 0.011. 4alculate the effecti*e fission cross section this ti!e. E'plain how first design can &e changed to ha*e sa!e effecti*e fission cross section with the second design.
Contant and -eminder+ the con*ersion factor used for *olu!etric heat generation rate fro! 3e*sec-c!/ to (<hr-ft/ is 1.#$ ' 10-,. 1 +> is /$12 tuhr. %or <2/# 1"1 ? @) is 0.,#1. (he fission cross section for <2/# fuel at roo! te!perature is #0 &arns. (he 1A correction factor is π 2 "0.,,72).
$) '20) ; P>R pellet dia!eter is 0./0 in. and the thic+ness of the clad is 0.02, in. respecti*ely. ;ssu!e there is no gap. (he fuel length is 12 ft. 4alculate the a*erage linear heat generation if the fuel centerline te!perature is $00o%. (he coolant te!perature gi*en is 7/# o% and the heat transfer coefficient for the coolant is 7#00.0 tuhrft2-o%. 4lad conducti*ity is 11.0 tuhrft-o%.
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∫ k dT approach. ;ssu!e the flu' depression factor is 0.81 and the theoretical f
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density of the fuel is 8#. Contant and -eminder 1 +> is /$12 tuhr. 1 ft is /0.$, c!.
#) '25) riefly answer &elow uestions a. B+etch the fast and ther!al neutron flu'es in the fuel and !oderator for a ther!al reactor. &. List the effects of decreasing heat reCection te!perature and increasing tur&ine inlet pressure on the Ran+ine cycle efficiency. c. riefly descri&e the reactor shutdown decay heat "sources the &eha*ior the i!portance) d. riefly descri&e how the heat is generated in reactor structures due to radiation i!pinging on the! "&riefly !ention the physical pa ra!eters effecting the heat generation). e. 5efine 4ritical =eat %lu' Ration and 3ini!u! 4ritical Power Ratio. E'plain which one is used for P>R and which one is used for >R. Di*e the li!it *alues for each.
