??(TH)??????? TH Series Of Environment-Friendly Refrigerants

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5.1 ?????????????
5.2 ?????????
5.3 ?????????
5.4 ???????????????
5.5 ?????
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• ?????

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• ????????????
• ?????????
• ??????????????

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• ??

??
100
???
??
??
40
??
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5.1 ?????????
1????-?????
2???????
3????????
4???????????
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5.1 ?????????
??????? 60-70 ?,
1850? ?????? ???????
1851? ???-????? ???????
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1????-?????

• ??????????????????????????????????????

?????????????????????,?????????????????
??????????????????????,?????????????
?????????100??????,????????????100 ?
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• ????????????????????????????

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• ???????????????????????

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2???????

• ?????????????????????????

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3????????

• ???-???
• ??

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????!!!
??????,????????!!!
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(No Transcript)
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4???????????
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???????????
?t 100???
?????????????? ?????????
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5.2 ?????????
??????? (S. Carnot), 1824??? ????
??????
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5.2 ?????????
1????? ????????
2?????????
3??????
4?????????????
5?????????????
6?????
7????????
8???????
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1????? ????????
a-b??????, q1 T1(s2-s1)
b-c????(??)????,????
c-d??????, q2 T2(s2-s1)
d-a????(??)????,????
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2?????????
q1
w
(1)??????????
q2
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(2)???????????

• ?t,c????????T1?T2 ?????????

• T1 ?t,c , T2 ?t,c
  ,????,?t,c??

• T1 ? K, T2 0 K, ? ?t,c lt 100, ???

• ?T1T2, ?t,c 0, ????????.

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3??????
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4?????????????
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5?????????????
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6?????
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7????????
(1)??????????????????
(2)???????????,?????????????
(3)????????????????????????????,???????,???????
(4)?????????????????????????,??????????,????????,
????????????
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8???????

• A ???????

1000 K
2000 kJ
1200 kJ
A
??
1500 kJ
800 kJ
??W1500 kJ
500 kJ
300 K
???
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(No Transcript)
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???????
1??????????????
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• ?????????????????????????????????????????

???????????????????????? ???
2??????????
??
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2????????????
5.3 ?????????
1?????
3????
(1)???????
(2)???????
(3)
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5.3 ?????????
1?????
???????? a-b-c-d-a,?????????????????????????????(?
???????),??
??????
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??
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,?????????
???????
??
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1-a-2
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2????????????

• A ???????

???????,???????
1000 K
2000 kJ
??W1500 kJ
A
1200 kJ
??
1500 kJ
800 kJ
500 kJ
???

300 K

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3????
(1)???????
????
(a)
?????
(b)
U????,?????,(b)???(a)?
??????????????????
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??????????
(p,T1)?( p,T2 )
?
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???1-a-2???
???1-c-2?1-b-2?????
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(2)
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(2)
???????????(?????)?????????????
?????????
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(3)
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(No Transcript)
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5.4 ???????????????
1?????????
2????????????
3???????????
4?
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5.4 ???????????????
1?????????
?????????????
????????????,?
(5-16)
?????
(5-17a)
(5-17b)
?????????????????????(?????)?????(????),?????????
???????????,??????????????????
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2????????
(1)?????????????????????????????
?????,??????????,???????????????????,????????????
???????,??????????
(2)???????????????????????????,?????????
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??????????????,?????????????,???????????????????,?
?????????????,????????????
(3)????????????????,???????,?????,????????????????
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3???????????

• A ????????

(1)???????????????
?
1000 K
?????
2000 kJ
?????
A
1200 kJ
1500 kJ
800 kJ
???
500 kJ

(2)
300 K
????
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4?
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??
1????????
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????
4
3
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(2)????????
(3)???????????
???????,????
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(4)?????
???????????,????????0?
(5)??????

• ?????????????????????????????,????????????

• ???,????????????????????????,?

• ????????????,??????????????,?

• ??????????????,??????????????????,????????

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2????????????????
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• ?????(???1)
• ?????????,??????????

?? T (1)????,??????
(2)???????????
? ???????????????????
? ???????????????????
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5.5 ?????
1?????????
2??????????
3???????
4????
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5.5 ?????
????????????????????????,???????????????,?????????
?
????????????,??????????????,??????????????,???????
???,???????
?????????????????????
1?????????
??????????????????????,???????????????????(exergy)
(?????????),????????????????( anergy )(?????)?
????,????????
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????????????
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2??????????
(1)????
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(No Transcript)
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(2)????
????????T0,?TltT0,????Q0?????????,???????
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(No Transcript)
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3???????
(1)??
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??????
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4????
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(No Transcript)
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P107???5-2,5-13
P108-109??5-2?5-3?5-19?5-23