Métodos de Transferencia de Calor (1) fisica

7/25/2019 Mtodos de Transferencia de Calor (1) fisica

1/21

TEMATRANSFERENCIA DE CALOR Y ESTADOS D

MATERIA

INTEGRANTES:

BONIFAZ NATHALIE

BRITO DARWIN

FARINANGO CESAR

GUSAY JHON

PEREZ ANDERSSON

POZO ROMEL

TULCAN JEFERSON

PAEZ ANDREA


2/21

TRANSFERENICA DE CALOR

La trans!r!n"#a $! "a%&r !s !% 'as& $! !n!r()a t*r+#"a $!s$! ,n ",!+a-&r t!+'!rat,ra a &tr& $! +!n&r t!+'!rat,ra.


3/21

METODOS DE TRANSFERENCIA DE CA


4/21

MTODO DE CONVECCIN

La "&n/!""#0n !s !% +!"an#s+& $! trans!r!n"#a $! "a%&r '&r +&/#+#!+asa & "#r",%a"#0n $!ntr& $! %a s,stan"#a. P,!$! s!r nat,ra% 'r&$,"#$

%as $#!r!n"#as $! $!ns#$a$!s $! %a +at!r#a1 & &r2a$a3 ",an$& %a +at&4%#(a$a a +&/!rs! $! ,n %,(ar a &tr&.


5/21

TRASMISIN DE CALORPOR CONDUCCIN


6/21

S# s,5!ta+&s !% !6tr!+& $! ,na /ar#%%a $! "&4r! - "&%&"a+&s !% &tr&

7a+a3 !% !6tr!+& 8,! s&st!n!+&s s! "a%#!nta "a$a /!2 +9s3 a,n8,

!n "&nta"t& $#r!"t& "&n %a 7a+a. E% "a%&r %%!(a a% !6tr!+& +9s r)& '

"&n$,""#0n a tra/*s $!% +at!r#a%.

En !% n#/!% at0+#"&3 %&s 9t&+&s $! %as r!(#&n!s +9s "a%#!nt!s t#!n!n

!n!r()a "#n*t#"a3 !n 'r&+!$#&3 8,! s,s /!"#n&s +9s r)&s3 as) 8,! !+

s,s /!"#n&s3 transr#*n$&%!s a%(& $! s, !n!r()a. L&s /!"#n&s !+',5a

/!"#n&s3 "&nt#n,an$& as) a tra/*s $!% +at!r#a%. L&s 9t&+&s !n s) n&

$! ,na r!(#0n $!% +at!r#a% a &tra3 '!r& s, !n!r()a s).


7/21

La +a-&r)a $! %&s +!ta%!s ,sa &tr& +!"an#s+& +9s !"a2 'ara "&n

D!ntr& $!% +!ta%3 a%(,n&s !%!"tr&n!s ',!$!n a4an$&nar s,s 9t&+&

- /a(ar '&r %a r!$ "r#sta%#na. Est&s !%!"tr&n!s ;%#4r!s< ',!$!n %%!/ar

r9'#$a+!nt! $! %as r!(#&n!s +9s "a%#!nt!s $!% +!ta% a %as +9s r)a%&s +!ta%!s (!n!ra%+!nt! s&n 4,!n&s "&n$,"t&r!s $!% "a%&r


8/21

a= C&rr#!nt! $! "a%&r H

4= A% $,'%#"ar !% 9r!a trans/!rsa%

$!% "&n$,"t&r s! $,'%#"a %a "&rr#!nt!

$! "a%&r >H !s 'r&'&r"#&na% a A=

"= A% $,'%#"ar %a$!% "&n$,"t&r s

a %a +#ta$ %a "&r"a%&r >H !s #n/!'r&'&r"#&na% a L


9/21

CORRIENTE DE CALOR EN

CONDUCCIN

H? @!%&"#$a$ $! trans!r!n"#a $! "a%&

$? Cant#$a$ $! "a%&r >

$t? T#!+'& $! trans!r!n"#a $! "a%&r > s!

? C&nstant! $! "&n$,"t#/#$a$ t*r+#"a >Bt, #

A? S!""#0n trans/!rsa% > 9r!a= >+ 3 "+

T? Cant#$a$ $! t!+'!rat,ra > $#!r!n"#a $! t!+'.=

L? L&n(#t,$ trans/!rsa% > !s'!s&r= > +3 "


10/21

S# %a t!+'!rat,ra /ar)a $! +an!ra n& ,n#&r+! a %& %ar(& $! %a /ar#%%a"&n$,"t&ra3 #ntr&$,"#+&s ,na "&&r$!na$a 6 a %& %ar(&

D&n$! $T$6 !s (ra$#!nt! $! t!+'!rat,ra.

E% s#(n& +!n&s #n$#"a 8,! %a "&n$,""#0n $! "a%%&r !s !n %a $#r!""#0n

$!"r!s#!nt! $! %a t!+'!rat,ra.


11/21

CONDUCTIVIDADES TRMICAS DE ALGUNOS MATEA TEMPERATURA AMBIENTE


12/21

MTODO DE LA RADIACIN La ra$#a"#0n t*r+#"a !s !n!r()a !+#t#$a '&r %a +at!r#a 8

!n",!ntra a ,na t!+'!rat,ra $a$a3 s! 'r&$,"! $#r!"ta+$!s$! %a ,!nt! a"#a a,!ra !n t&$as %as $#r!""#&n!s.!n!r()a !s 'r&$,"#$a '&r %&s "a+4#&s !n %as "&n(,ra"!%!"tr0n#"as $! %&s 9t&+&s & +&%*",%as "&nst#t,t#/trans'&rta$a '&r &n$as !%!"tr&+a(n*t#"as & &t&n!s3 '&r %& r!% n&+4r! $! ra$#a"#0n !%!"tr&+a(n*t#"a.


13/21


14/21

ESPECTRO DE RADIACIN.


15/21

ESTADOS DE LA MATERIA

D!n&+#na$&s "&+& !sta$&s $! a(r!(a"#0n $! %a +at!r#a >$#st#ntas

!n 8,! %a +at!r#a s! a(r!(a;=3 $#st#ntas 'r!s!nta"#&n!s $! ,n "&n5$! 9t&+&s.

Ca+4#& $! !sta$&:

C,an$& ,n ",!r'&3 '&r a""#0n $!% "a%&r & $!% r)& 'asa $! ,n !sta$& a!% "as& $!% a(,a: ",an$& a"! "a%&r3 !% #!%& s! $!rr#t! - s# "a%!nta+&%)8,#$a /!+&s 8,! s! !/a'&ra.


16/21

S"L#$%&Las 'art)",%as !st9n ,n#$as '&r ,!r2as $! atra""#0n (ran$!s &",'an$& '

5as. A$!+9s s! +,!/!n /#4ran$& , &s"#%an$& a%r!$!$&r $! '&s#"#&n!s 5

L'#$%& %as 'art)",%as !st9n ,n#$as '&r ,!r2as $! atra""#0n +!ns0%#$&s3 '&r !sta ra20n %as 'art)",%as $! ,n %)8,#$& ',!$!n tras%a$ars! "&

*AS+%S%& %as ,!r2as 8,! +ant#!n!n ,n#$as %as 'art)",%as s&n +,'art)",%as s! +,!/!n $! &r+a $!s&r$!na$a3 "&n "&8,!s !ntr! !%%as -$!% r!"#'#!nt! 8,! %&s "&nt#!n!.


17/21

CAMBIO DE FASES

Es ,n !n0+!n& t*r+#"& 8,! ,na s,stan"#a s,r! a%a%t!rar s, !sta$& )s#"&3 '!r& n& s, "&+'&s#"#0n


18/21

L&s "a+4#&s $! as! &",rr!n ",an$& a%(,na $! %as /a@3 T= "a+4#an 4a5& "#!rtas "&n$#"#&n!s $! !8,#%#4r#&3 -a(!nt!s !6t!rn&s & #nt!rn&s.

La T - P s! ,t#%#2an "&+& /ar#a4%!s3 %as ",a%!s '!"&nstant!s $,rant! %a trans#"#0n.

%a !ntr&')a - /&%,+!n s&n /ar#a4%!s $,rant! !% 'r&"!s&

%&s "a+4#&s $! as! s&n r!/!rs#4%!s


19/21

,al latente de f/0i1n (Lf)

Es !% "a%&r '&r ,n#$a$ $! +asa 8,! s! r!8,#!r! 'ara "a+4#ar$! as! s&%#$a a %#8,#$a a s, t!+'!rat,ra $! ,s#0n.

&Cant#$a$ $! "a%&r n!"!sar#a 'ara !% "a+4#& $! as! ",as,stan"#a !st9 !n !% ',nt& $! "a+4#&.

m : Masa $! %a s,stan"#a

L & "a%&r %at!nt! $! "a+4#& $! as! $! %a s,stan"#a

Para !% a(,a:

L? "a%(


20/21

,al latente de 3a4i5ai1n (Lv)

Es !% "a%&r '&r ,n#$a$ $! +asa 8,! s! r!8,#!r! 'ara s,stan"#a $! %)8,#$& a /a'&r a s, t!+'!rat,ra $! !4,%%#"#0n.

Para !% a(,a:

L/?K "a%(


21/21

PROPIEDADES

Pr&'#!$a$!s SLIDO LUIDO GASEOSO

F&r+a

Mant#!n!n s, &r+a3 '&r %&8,! n& s! a$a'tan a %a&r+a $!% r!"#'#!nt! 8,!%&s "&nt#!n!

N& t#!n!n &r+a 'r&'#a. S!a$a'tan a %a $!% r!"#'#!nt!

N& t#!n!n &ra$a'tan a %a

@&%,+!n T#!n!n ,n /&%,+!n 5& T#!n!n ,n /&%,+!n 5&N& t#!n!n /&%

a$a'tan a% $!

C&+'r!s#4#%#$a$ N& s! "&+'r#+!n N& s! "&+'r#+!n S! "&+'r#+!

E6'ans#4#%#$a$ N& s! !6'an$!n N& s! !6'an$!n S! !6'an$!n

P,!$!n 7,#r N& 7,-!n F%,-!n F%,-!n

Métodos de Transferencia de Calor (1) fisica

Documents

Transcript of Métodos de Transferencia de Calor (1) fisica