are157_homework-1-key

# are157_homework-1-key - T h e d in in g r o o m h e a t in...

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Unformatted text preview: T h e d in in g r o o m h e a t in g a n d c o o l in g s y s t e m is l l io t o p e r a t in g s a t is f a c t o r i ly ) s in c e t h e r e is a c h a n c e t h e t e m p e r a t u r e w i l l o c c a s io n a l ly b e t o o c o ld . H o w e v e r , i t is (C iP 8 b @ o f o p e r a t in g s a t is f a c t o r i ly . : r h e p r o b le m is l ik e iy t o b e c o r r e c t e d b y s im p ly t u r n in g t h e t h e rm o s t a t u p s l ig h t ly , s o t h a t t h e m e a n t e m p e r a t u r e is c lo s e r t o t h e t a r g e t o f 7 2 d e g r e e s . J 7 3 . 4 9 1 3 \ o k a y [ 6 8 . 9 8 7 } t o o c o ld ( 7 5- 6 9 ) / 6 s = ( 7 5- 6 9 ) / 6 s = C p = C p = to . 7 7 4 5 9 ] N O T C A P A B L E s in c e C p is < 1 r 1 . 3 9 3 7 jC A P A B L E s in c e C p is > 1 T h e ~ y 1 h e a t in g a n d c o o l in g s y s t e m is E ~ t o p e r a t in g s a t i fa c to r 1 iY ) a n d is { ! i9 t c a p a b le } o f b e in g c o n t r o l le d u s in g c u r r e n t p r o c e d u r e s . T h e f lu c t u a t io n s I n t h e t e m p e r a t u r e a r e l ik e ly to e x c e e d t h e s ix- d e g r e e r a n g e t h a t is a l lo w a b le , e v e n i f t h e m e a n is a d ju s t e d to m a t c h t h e t a r g e t t e m p e r a t u r e o f 7 2 d e g r e e s . T h e h o t e l w i l l h a v e to lo o k f o r a n d c o r r e c t t h e c a u s e o f t h e s e f lu c t u a t io n s , s u c h a s b y in s t a l l in g a m o r e a c c u r a t e t h e rm o s t a t , o r b y lo c a t in g a n d b lo c k in g s o u r c e s o f d r a f t s . D in in g R o o m L o b b y X m in = X b a r s In a n o rm a l d is t r ib u t io n , t h e e x t r e m e v a lu e s n e a r " X m a x " a n d " X m in " a r e r a r e , o c c u r r in g in t h e t a i ls o f t h e d is t r ib u t io n f u n c t io n . S o i f a...
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## This note was uploaded on 03/31/2009 for the course ARE 157 taught by Professor Whitney during the Spring '08 term at UC Davis.

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are157_homework-1-key - T h e d in in g r o o m h e a t in...

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