- PowerPoint PPT Presentation

About This Presentation
Title:

Description:

Title: PowerPoint Author: dingo Last modified by: ProfBakri Created Date: 9/22/2006 6:09:29 AM Document presentation format – PowerPoint PPT presentation

Number of Views:38
Avg rating:3.0/5.0
Slides: 57
Provided by: ding73
Category:
Tags: food | microwave

less

Transcript and Presenter's Notes

Title:


1
?????? ??????? ??????? ???????? ????? ???????
??????? ????????????? ??????? ??????? ? ????????
???????? ???????? Food Processing by High
Pressure, Microwave Heating, Ohmic Heating, and
Continuous Thermal Processing ?.?/???? ????
???   ??? ??????? ???????? ????? ???? ??????? ?
??????? ?????? ????? ????
     
2
?????
  • ??? ?????? ??????? ??????? ???????? ?????
    ?????????????? ?????? (High Pressure Processing,
    HPP) ? ??????? ????????????(Microwave Heating,
    MH) ? ??????? ?????? (Ohmic Heating, OH) ??
    ?????? ??????? ??????? ??? ????????? ? ???????
    ??????. ??? ????? ???????? ???????? ????????
    ??????? (Continuous Thermal Processing) ???? ??
    ???????? ???????? ?? ??????? ??????? ?? ????
    ????? ??? ???? ?????? ????? ? ??????? ? ??????? ?
    ??????? ???????.
  • ? ??????? ??? ???????? ??? ??????? ??????? ????
    ???????? ???????? ????????? ??????.

3
(1) ??????? ??????? ?????? ??????High Pressure
Processing (HPP)
  • ??????? ?????? ?????? (?? ????? ???????????????
    ??????) ?? ????? ??? ?????? ????? ?????? ?????? ?
    ??? ??????? ?????? ?????? ?? ???? ????? ????
    ???????? ???????? ?????? ??????? ?????????
    ??????? ?????? ?? ???????? ?????? ??? ??????
    ?????? ? ???????? ? ?????? ???????? ????????
    ???????? ? ????? ???? ????????.
  • ?????? ??????? ????? ?????? (400 ??? 600 ????
    ?????? ?? 05800 ??? 87000 ??? ?????? ???????) ???
    ????? ????? ????? ?? ?????? ?? ?????? 6 ??? 45 ??
    ? ???? ?? ???? 2 ??? 10 ?????.
  • ??? ????? ??????? ??????? ?????? ?????? ??? ????
    ???????? ?? ?????? ??????? ??????? ??????? ????
    ?????? ?????? ???????.

4
  • ????? ????? ??????? ?????? ?????? ??????? ?????
    ??? ????? ???? ???? ?? ????? ???? ???? ??? ??????
    ?????? ? ?????? ??? ???? ????? ?????? ???? ??????
    ?? ???? ?????.
  • ??? ????? ????? ?????? ?????? ????? ???? ???????
    ???????? ???????? ??? ?????? ???? ??? ????? ????
    ?????? ???? ???? ??? ?? ???? ?????? ??? ?? ???
    ????? ????? ????? ?????? ????? ????? ???? ?????
    ?? ????? ?????? ???? ??? ??? ?????? ??? ?????
    ?????? ??????? ?????? ?????? ??????.? ???
    ???????? ??? ??? ????? ????? ????? ????? ?????
    ??? ????? ??????.

5
  • ????? ??????? ?????? ?????? ??? ??????? ???? ????
    ??????? ??????? ???? ????? ????? ????? ? ??? ????
    ??????? ???? ??????? ??????? ??????? ??????? ????
    ???? ??? ??????? ? ?????????? ? ????? ...???.
  • ??????? (1.1) ? (1.2) ? (1.3) ???? ????? ????
    ??????? ?????? ??????.
  • ??? (1.1). ??? ?????? ????? ???????????????
    ???????? ?? ????? ??????? ?????? ??????.

6
  • ??? (1.2).?????? ??????? ??????? ?????? ??????
    ?????? ??????-??????.

7
  • ??? (1.3).???? ?????? ?????? ??????? ??????
    ??????????????? ??????.

8
  • ??????? ???? ???? ??????? ?????? ???????????????
    ?????? ???? ?? ???
  • (?) ??????? ?????? ? ??? ??? ?????? ??????? ?
    ??????? ??? ?????
  • 1- ?????? ?????? ?????? ??????? ?? ???????? 2-
    ??????? 3- ??????? ? ???????? ??????? ? ????????
    ??????? 4- ??????? ??????? ????? ?
    ???????????(???? ?????????) ? ????? ? ???????? ?
    ????? 5- ??????? ??????? ??????? ??????? ????? ?
    ???????? ? ????????? 6- ?????????
  • (?) ??????? ??????? ??????? ???????? ?? ?????
    ????
  • 1- ?????? ??????? 2- ????? ??????? 3- ????????
    ???????? ??????
  • ??????? ???? ?? ???? ???????? ?????? ?????
    ??????????????? ??????
  • 1- ????? 2- ??????? ??????? ?? ????? ???? ???
    ??????? ???????? ????????? 3- ??????? ??? ???????
    ??????? ??????? ???? ??? ??????? ? ???????
    ???????.

9
  • ???? ??? (1.4) ????? ??? ??????? ??????? ??????
    ????? ??????????????? ??????.
  • ??? (1.4). ??? ??????? ??????? ?????? ?????
    ??????????????? ??????.

10
  • ???? ??????? ??????? ?????? ????? ???????????????
    ?????? ????????? ?????? ??? ?????? ? ?????? ?
    ????? ??????? ? ??????? ? ???????? ??? ????????
    ???????? ? ????? ???? ???????? ? ??????? ??
    ????????? ?????? ???????? ????????.
  • ????? ???? ???????? ???????? ??????? ? ???????
    ??????
  • ?? ??????? ????? ????? ??????????????? ?????? ??
    ????? ??????? ??????? ??????? ? ????? ???????
    ??????? ???? ?? ?????? ?? ???? ????? ???? ???
    ????? ??????? ???? ?????? ?????? ?????? ???????
    (HACCP) ??????? ?? ??? ????? ?????? ? ??????
    ????????? (FDA) ? ???? ????? ????? ?????????
    ???????? ???????? ????? 5log . ????? (5log????)
    ? ???? ?? ????? ?? ??? ????? ?????? ? ??????
    ????????? ? ???? ??? ???? ? ?????? ?????????
    ????? ??? ??? ?????? ????? ????? ???????????????
    ?????? ?????? ?????? ???????? ?? ??????? ???????
    ? ??????? ????? ??? ?????? ??????? ????? ?
    ???????? ??????? ? ??????? ??????? ?????? .

11
  • ???? (1.1). ????? ???? ???????? ??????? ?? ????
    ?????? ??????.

12
  • ??? (1.5). ????? ????? ?????????????? ?????? ?
    ??? ?????? ??? ???? ?????? ??????? ????? ???????
    ?????????????

13
  • ??? (1.6). ????? ????? ?????????????? ?????? ???
    ????? ???? ???????? ??????? ?? ??????? ?????
    ????? ????? ???? ?????? ???????? ? ?????

14
  • ???????? ??? ???????? ???????? ? ????? ????
    ???????? ???????? ???????? ??????? ??????
    ??????????????? ??????
  • ????? ????? ??????? ?????? ???????????????
    ??????? ??? ?????? ?? ???????? ?????? ?????????
    ??????? ????? ?? ????? ???? ???????? ????? ??????
    ??? ?? ???? ??? ???? ?????? ?? ??????? (1.7)
    ??? (1.10) ?????.
  • ??? (1.7). ????? ????? ?????????????? ?????? ???
    ??????? ? ? ??? ??????? ? ???????? ?? ????
    ???????? ???????.

15
  • ??? (1.8). ???? ???????? ??????? ?????? ? ???????
    ?????? ?????????????? ?????? ???? ??? 85 ??
    ??????? ? ??? ?????? ??? ???? ????? 4 ?? ???? 20
    ????? ?????? ???????? ??? 40 ?? ????????? ???
    ?????? ???????.

16
  • ??? (1.9). ???? ???????? ????? ????? ????????
    ????? ?????? ? ??? ?????? ?????? ?????
    ??????????????? ??????.

17
  • ??? (1.10).????? ???? ???????? ? ???? ??????
    (?????????????? ??????? ???????) ????? ???????
    ????? ???????? ?????? ????? ???????????????
    ??????.

18
  • ?????? ? ????? ??????? ????? ?????
    ??????????????? ?????? ?????? ???????
  • ????? ? ?????? ???????? ??????? ? ??????? ????
    ???? ?????? ????????? ? ???? ????? ? ???????????
    ????? ???????? ???????? ??????? ????? ???????.?
    ???? ??? ??? ???? ??????? ???????? ?????? ? ?????
    ????? ?????? ????????.
  • ???? ??????? ????? ????? ??????????????? ??????
    ???? ?????? ?????? ?? ???? ??????.? ??? ????
    ?????? ??? ???? ?????? ? ?????? ???????? ? ???
    ?????? ??????? ???? ??? ???? ???????? ??????
    ?????? ?????.
  • ???? ?? ??????? ??? ??????? ?????? ??? ??????
    ???? ?????? ????? ?? ?????? ??????? ? ????????
    ??????? ? ??? ????? ????? ?? ???? ???????? ??
    ???????? ?????? ??? ?????? ?????? ???? ???? ?????
    ? ?????? ? ??????? ?????? ? ?????? ??? ??????
    ???????? ?????????? .

19
(2) ??????? ???????????? ?? ?????? ???????
???????Microwave Heating in Food Processing
  • ??????????? (??????? ???????) ?? ????? ?? ?????
    ????????????? ??? ???? ??????? ? ????(Frequency)
    ?? ????? ?? 300 ????????? (MHZ) ??? 300 ????
    ????? (GHZ).??? ??? ??????? ??????? ?????????
    (ITU) ???????? ??????? ???????? ???????? ???????
    ???????? ???????????
  • 2450 ????????? ?? ????? ??????????? ???????? ???
    ???????.
  • 970 ????????? ? 915 ????????? ? 897 ?????????
    ????????? ???????? ?? ??? ?????.
  • 22125 ????????? ?????? ?????? ???????????
    ??????????.

20
  • ??? ????? ??????????? ??? ?????? ?? ????
    ????????? ???????? ? ??????? ??????. ??? ??????
    ??? ????? ??????????? ?????? ???? ?????????
    ?????? ???? ???? ??????????? (Magnetron) . ?????
    ?? ??????????? ???? ??????? ??? ?????? ?????
    ????? ??? ????? ????? ????? ?????? ???? ??
    ????????? ?????? ?????? ?? ???????.? ????
    ??????????? ???? ????? ????? ?? ??? ??? ????
    ????? ?????? ?? ??? ??? ??????? ???? ???? ?????.?
    ???? ??? (2.1) ??????? ??????? ??????? ???? ???
    ??????????? ? ?? ???? ??????????? (Magnitron) ?
    ???? ???????? ??????? (High Voltage Transformer)
    ? ???? (Capacitor) ? ???? ????? (??????) (Diode)
    ? ????? (Cavity Lamp) ?????? ????? ??????
    (Blower) ? ???? ????? ????? (Timer and
    Controller) .

21
??? (2.1). ??????? ??????? ??????? ???? ???
???????????.
22
  • ??? ????? ? ?????????? ? ???????????? ???
    ???????? ??????? ???? ????? ?? ?????? ???????
    ??????????? .?????? ???????? ???? ?????? ?
    ??????? ?????? ?? ??????? ???? ???????? ????????
    ????? ???????. ??? ???? ??????? ???? ?? ????
    ???????? ???????? ????????? ???? ??????.
  • ???? ????? ??????????? ???? ?????? ?????????
    ?????????? ??????.??? ?????? ???????? ??? ?????
    ?????????? ???????? ????? ???? ????? ???????????.
    ? ?????? ???? ????? ??????????? ???????? ??
    ?????? ?? 600 ??? 1500 ??? ????? ??? ??
    ????????? ???????? ??? 50 ? ??? .

23
??? ??????? ????????????
  • ????? ??????? ??????????? ?? ?????? ????? ?????
    ?? ???? ???????? ? ?? ?????? ?????? ???????
    ??????? ??? ??????? ??? ????? ??????? ?? ????
    ??????? ???? ?? ???? ????? ?? ???????. ??? ??
    ????? ??????? ??? ??????? ???????????? ? ???????
    ??????? ??? ??????? ?? ?? ?????? ??? ??????? ???
    ?????? ?????? ??? ??? ????? ??????? ??????
    ??????? ??? ??? ??? ????? ??? ?????? ?? ????
    ??????? ??? ?? ????? ??????? ?? ??? ?????? ???
    ?????? ?? ???? ???????.??? ?? ???? ???????????
    ??? ?????? ???? ?? ???? ??? ?????? ? ?????
    ??????? ???? ??????? ??? ??? ?????? ??? ?????
    ????? ??????. ??? ?? ??????? ????? ???????????
    ??? ???? ???? ???? ??? ??? ??? ??? ?? ????????
    ??? ??????? ??????? ? ??? ????? ???????.

24
  • ???? ??????? ?????????? ??? ????? ?????? ??????
    ???????? ????? ???? ??????? ????? ?? ??????
    ??????????????? ???? ?? ????? ???? ??????????
    (Photons) ?? ?????? (Quanta) ??? ????? ?? ?????
    ????? ??? ??? ???????. ? ??? ?????? ??? ?????????
    ??????? ??? ?? ????? ????? ????? ??? ?????? ???
    ??????? ??????? ?????? ?????? ???????????? ??
    ?????? ????????? ? ?? ???? ???? ??? ?? ??? ??????
    ?? ???? ? ???? ????? ????? ??????
    ???????????????.???? ????? ??? ?????? ????? ?????
    ??? ???? ????? ?? ????? ???? ?????? ??????
    ??????????? ????? ??? ??????? ????????
    ???????????? ?????.???? ????? ???? ?????? ?????
    ???? ????? ??? ???? ?? ??? ??????????? ? ????????
    ????? ????? ??? ??????? ?????? ??? ???? ?? ??
    ???? ?? ?????? ???? ???? ???????.

25
  • ????? ???? ??? ??? ????? ???????? (Cp) ?????? ??
    ???????? ????? ???? ??????? ???????. ???? ??????
    ?????? ??? ?????? ?? ???? ???? ??????????? ????
    ??????? ???? ?????? ??? ?????? ??? ????? ????????
    ??? ????? ?? ?????. ??? ??? ?????? ?? ?????
    ???????? ????? ??????? ??? ???? ??????? ????.???
    ???? ????? ???? ??? ????? ??? ????? ????? ??
    ?????? ?? ??? ??????????? ??? ???? ????? ???? ??
    ?????? ?????? ????? ? ????? ????? ? ? ??? ???
    ????? ?????? ?????? ??????? ??????? ?? ??????.

26
  • ??? ?? ????? ??????? ???????????? ????? ????????
    ?????? ??? ?????? ???????? ????? ??? ?????? ?????
    ???. ?? ?????? ??????? (???? ?????) ???? ??????
    ????? ??????? ? ???? ??????? ????? ?? ??????
    ?????? ? ?????? ????????? ? ?????????? ?????? ???
    ?????? ????? ?????? ???????????. ??? ?? ??????
    ??????? ????? ??????? ??????????? ??? ????????
    ?????? ????? ?????? ? ????? ?????? ?? ?????????
    ??? ???? ????? ????? ???????????? ???? ??
    ???????.??? ????? ?? ?????? ?????? (?????) ??????
    ????? ???????? ? ???? ???????? ????? ??? ?????
    ???????? ??? ???? ????? ??? ???? ???????????. ?
    ??? ??? ??????? ?? ??????? ???? ??? ?? ?????
    ????? ??????? ??????? ???????? ???????????.
  • ?? ??????? ????????? ??? ??? ??????? ????????????
    ??????? ????????? ?? ??????? ???????? ??? ?? ????
    ?? ??? (2.2). ???? ??????? ???????????? ????
    ?????? ?? ????? ???????? ? ???? ?? ??? ?????
    ???????? ???????? ?? ????? ??????? ?????? ? ?????
    ?? ??????.

27
??? (2.2).?????? ??????? ??????? ??????????
(??????? ??????) ???????? ???????? (???????
?????).
28
??? (2.3).?????? ??????? ?????? ???????
???????????? ?????? ?????? ??????? ??????
29
  • ?????? ???????? ????? ????? ????? ?????? ??? ??
    ???? ?? ??? (2.3) ?????.?????? ?????? ???? ?????
    ?????? ???????? ??????? ????? ??????? ??? ???????
    ?????? ??????? ??? ??? ????? ??? ??????? ???
    ?????? ????? ??? ???? ???? ????? ?????? ????????
    ??? ??? ??????.??? ??? ?? ????? ???? ??????? ????
    ??? ?????? ?? ?????? ?????? ?????? ?????? ? ???
    ????? ???? ????? ?? ??? ????? ??? ??????? ???????
    ?? ???????. ???? ???? ?????? ??? ???????? ???????
    ??? ????? ??????? ? ?? ?????? ???? ??????? ???
    ????? ?????? ?????? ????? ?????? ????? ??? ????
    ????? ?????? ?????? ??????? ????? ?????? ?? ????
    ?????? ??????? ????? ????? ???? ???????? ??
    ???????? ??????? ???? ??? ?????.

30
??? (2.4).?????? ???? ?????? ?????? ?????? ????
??????? ????? ?????? ???? ?????
31
???? ????? ??????? Dielectric Properties of Food
  • ???? ?????? (Dielectric Constant) ?? ??? ??????
    ??????? ?????????????????? ??????? ??? ??????? ??
    ?????? ? ??????? ?? ????? ???? ???????.??? ????
    ????? ?????? ??? ????? ?????? ??????????. ??????
    ?????? ???? ???? ???? ????? ??????? ????????????
    ?? ????? ??? ?????? (Dielectric loss factor)
    .???? ?????? ????? ?????????? ???? ?????? ???
    ???? ??? ?????? ??? ??? ??????? ???? ???? ??
    ?????? ???????????????.??? ????? ?? ????
    ??????????? ???? ????? ????? ??? ???? ??? ????
    ?????? ? ?? ?????. ????? ????? ??????? ???
    ??????? ????? ??????? ???? ????. ?????? ?????
    ????? ??? ?????? ????? ??????? ? ??????? ???????
    ?????? ?????? ???????.

32
?????? ???????? ? ???????? ??????? ? ???????
?????? ??????? ??? ????? ??????? ????????????
  • ?????? ???????? ????????? ? ??????? ?????? ????
    ???? ??? ?????? ????? ??????????? ???? ?????? ?
    ?????? ????? ??????? ??
  • 1- ??????? ???????
  • ? ?? ??? ??? ?????? ???????? ??????? ? ?????
    ????? ????? ??? ??????? ?????? ?????? ??? ?????
    ??????? ? ??????? ????? ?????? ????? ???????
    ????????????.
  • 2- ????? ??????? ??????? (???????? ????????)
  • 3- ?????
  • ??? ?? ????? ??????????? ???? ???? ?????? ?? ??
    ?????? ??? ????? ?? ????? ???? ??? ??? ???????
    ????????????. ???? ????? ?????? ?? ????? ???????
    ??????? ???????????? ? ???? ???? ????? ?????????.
  • 4- ????? ?????
  • ????? ???? ??????? ?????? ??????????? ???????
    ????? ??? ??????. ? ??????? ??? ?????? ????????
    ??? ?????? ??????? ?????? ????? ??? ????? ???
    ??????? ??????? ????.

33
  • 5- ???? ???????
  • ??????? ???????????? ?? ????? ????? ??? ????? ?
    ???? ???????. ? ???? ???? ??????? ??? ???? ?????
    ? ???? ??????? ???????? ??????. ? ?? ????
    ???????? ?? ???? ??????? ???? ?????? ????? ????
    ????? ?????????.
  • 6- ???? ??????
  • 7- ???????? ????????
  • 8- ??????? ??????? ?????? ????????
  • 9-?????? ?????? ????????

34
??????? ??????? ????????????
  • ????? ?????? ?? ??????? ??????? ???????????? ??
    ???? ???????? ???????? ??? ?? ???? ?????
  • (1) ????? ??????? ??????? (Tempering)
  • ? ?? ????? ????? ???? ????? ??????? ??????? ??
    ???? ????? ??????? ?? ??????? ?????? ??? ????
    ????? ?? ?????? -4 ??? -2 ( ?).
  • (2) ????? ??????? (Food Drying)
  • ???? ??? ??????? ???????????? ???? ???????
    ???????????? ???????? ????????.??? ????? ???????
    ???? ??? ??????? ??? ????? ????? ????????????
    ???????? ? ????? ??????? ??????? ????? ??????? ?
    ????? ? ?????? ? ????? ? ???????? ??????? ?
    ???????.
  • (3) ????? (Cooking)
  • (4) ????? ???? ????????? (Enzyme Inactivation)
  • ?????? ????? ??????? ??????.

35
  • (5) ????? ????? (Baking)
  • (6) ??????? ???????? (Pasturization and
    Sterilization)
  • ? ???? ????? (2.5) ????? ??? ??? ??????????
    ????????? ??? ????? ????? ?? ???? ????????
    ????????.

36
??? (2.5).????? ????? ?????? ????????????
37
(No Transcript)
38
(No Transcript)
39
(No Transcript)
40
(3) ??????? ??????Ohmic Heating
 
  • ??????? ?????? ???????? ???????? ?? ????? ??????
    ????? ???? ??????? ??????? ????? ????? ????
    ??????? ????? ???? ???? ????? ???? ???????
    ??????. ??? ???? ???? ??? ??????? ?????? ????
    ????? ???????? ?? ??????? ??????? ????????.? ????
    ????? ????? ????? ???????? ?????? ??????? ??????.

41
??? (3.1). ?????? ????? ??????? ?????? 1-????
???? ??????? ????? (AC power supply) 2- ???????
(???) (Electrode) 3- ????? ???? (Insulator tube)
4- ?????? ???????? (Food)
42
  • ???? ????? ??????? ?????? ??? ????? ?????? ????
    ????? ??????? ??? ?????? ??? ?????? ??????
    ??????.???? ??????? ?????? ?????? ?? ???? ???
    ????? ?????????? ???????? ????????? ???? ??????
    ?????? ??????.? ???? ?????? ?? ??? ?????
    ????????? ???? ???? ????? ?? ???????? ???????. ?
    ??? ????? ?? ??????? ?????? ???? ????????
    ???????? ?????? ???????? ???????? ????? ?? ????
    ????? ?????? ????????.
  • ????? ????? ????? ????? ????? ??????? ??????
    ?????? ?????? ???????.? ???? ???? ????? ?????
    ??????? ??????? ??????? ????? ??????? (pHlt4.5)
    ?????? ????? ??? ??? 90-95 ( ? ?) ????? 30 ??? 90
    ????? ?????? ???? ????????? ? ???????? ????????
    ??????? ?????? ( ????????? ????????? ????????
    ????? ? ?????? ??????????????).??? ???????
    ?????? ???????? (pHgt4.5) ????? ?? ???? ???
    ?????? ????????????? ?????????? ????????? ??? ???
    ???? ??????????? ?????? (pH) ? ?????? ??????
    ????? ????? ??????? ??? 121 ( ? ?) ????? 3 ?????
    ??? ???? ( ???????? Lethality F0 3 min ) ? ?????
    ????? ?? ??????? ????? 12 ??????? ?????? (12D
    colony reduction) .

43
  • ???? ????? ??????? ?????? ???? ????? ??????
    ??????? ????? ???? ?? ???? ????? ????????
    ???????? ?????? ??????? ?????? ???????? ????
    ????? ??? ???? ???? ( ??? ???????? ???????? ???
    ??? ??? ????? ? ??????? ???????? ??? ??? ????) ?
    ??????? ????? ????? . ??? ???? ??????? ???? ?????
    ??? ??? ???? ?? ????? ???? ??? ???????? ???????
    ???????? ???? ??????? ??????? ?? ?????? ??? ???
    ????? ?????? ?? ???? ????? ??? ??? ????? ??????
    ??? ?????? ?? ???? ???????? ? ??????? ??? ?????
    ?????? ?????? ???? ???? ???? ???? ( ? ?? ?? ????
    ??????? ???????) ???? ??? ????? ???? ?? ??????
    ????? ?????? ???????. ? ?? ??????? ??? ???????
    ?????? ??? ??????? ?????? ??? ????? ??? ?????
    ??????? ?????? ? ????? ?????? ?? ??? ?????. ???
    ??? ??????? ?????? ?? ??? ??????? ????? ??????? ?
    ???? ? ????? (HTST)? ??? ?????? ????? ???? ?????
    ????? ??? 80 ???? ???? ?? ???? ????? ?????? ???
    129 (?) ?? ????? 90 ?????? ??? ???? ??? ?????
    ??????? ??????? ?????? ??? ???? ?????? ???????
    (?????? ?????? ? ????????). ???? ??? ???
    ?????????? ???????? ??? ????? ??????? ?????? ?
    ??????? ????????? ?? ?? ??????? ?????? ?????
    ????? ????? ?????? ????? ???? ?? ?????? ?????
    ?????? ?????? ????? ?????? ???? ???? ?????? ???
    ????? ??????? (Heating Inversion) ? ? ?? ?????
    ??? ????? ?? ???? ??????? ???????? ????????.

44
????? ??????? ??????
  • ??????? ?????? ???? ????? ? ????? ?????? ??? ??
    ?? ?? ??? ??????? ?????? ??? ?????? ????????
    ??????? ???????? ???? ??? ??????? ?? ??????. ?
    ???? ????? ??? ??????? ? ??????? ???? ???
  • (1) ??????? ????? ???????? ???????? ???????
    ?????? ?? ???? ??????? ??????? ??????? ?? ?????
    ?????? ???????? ??????? ???????? ? ?? ???
    ?????????? ???????? ??????? ???????????? ?????
    ??????? ??????? ?????? ?????????.
  • (2) ???? ?????? ??? ????? ????? ????? ??????
    ?????? ?? ???? ?? ????? ????? ????? ?????? ? ?
    ??? ??? ??? ?????? ?? ???? ???????? ???????
    ????????.
  • (3) ????? ????? ??????? ??? ???? ??????? ???????
    ? ??? ?????? ??????? ? ??? ???? ??? ????? ???? ??
    ????? ?????????? ? ?????? ???? ??? ????????
    ???????? ? ???????????.
  • (4) ?????? ??? ????? ????? ?????? ????? ??????
    90 ?? ?????? ?????????? ??? ?????.
  • (5) ?????? ??? ??????? ???? ???? ????? ???????? ?
    ????? ???????? ????? ????? ??????? ??????? ??????
    ??????.
  • (6) ????? ?????? ?? ??????? ?? ???? ??????? ??
    ??????? ??????.

45
??? (3.2). ????? ?????? ??????? ?????? ???????.
46
(4) ???????? ???????? ????????Continuous-Flow
Heat Processing
  • ??? ???????? ???????? ????????
  • ?? ????? ???????? ???????? ???????? ????? ??????
    ???????? ?????? ????? ??????? ?? ????? ???????
    ??????? ? ????? ?????? ? ????? ??????? (Thermal
    Heat-Hold-Cool Process) . ???? ?? ??????
    ???????? ????? ?? ???? ????? (???) ????? ???? ???
    ????????? ???????? (??????? ?????????? ????
    ???????? ???????? ??????? ???? ????? ??????? ?
    ??????? ??????? ??????? (????? ??????)) ??? ???
    ??????? ????? ??????? ???????? ? ?? ?? ?????????
    ??? ??? ?????? ???? ???? ??????? ? ?? ?? ???????
    ?????? ???? ????? ??????. ? ???? ????????
    ???????? ????? ?????? ?????? ????? ??????. ???
    ??????? ????????? ????? ?? ?????? ???????? ????
    ??????? ??? ?????? ??????? ? ???????? ??????? ???
    ??? ????? ?????? ???????? ? ??? ?????? ? ?? ??
    ???????? ???????.

47
  • ??? ?????? ??????? ???????? ?? ??? ??????
    ???????? ???????? ???????. ??? ?????? ????? ????
    ???? ??????? ??????? ? ????? ?????? (HTST) ???
    ????? ??????? ????? ???? ???? ??????? ??? ???????
    (UHT) ?? ??????? ??????? ??? ????? ???????. ? ??
    ????? ???????? ???????? ???????? ?????? ???????
    ??????? ? ???????? ??????? ???????? ???????
    ??????? ??????? ???? ???? ??????? ??????? ?????
    ????? ????? ?????? ?? ???? 140 ??? 150 ( ? ?)
    ?????? ????? ??????? 125 ( ? ?) ? ?? ??????
    ?????? ???? ???? ?????? ????? ??? ??????? ??????
    ??????? ? ???????? ???????. ????? ???? ???
    ???????? ??????? ??????? ???????? ???? ??????
    ??????? ? ???????? ????????? ???? ??? ?????
    ?????? ??? ?????? ? ??????? ???????? ????? ???
    ?????? ?????? ? ????????, ? ???? ????? (4.1)
    ?????? ??????? ???? ???? ??????? ?? ????? ???????
    ???????? ???????? ???????? (??????? ???????? ???
    ???????) ? ??????? ??????? ??????? ?????????
    ?????????.

48
  • ? ?? ????? ?????? ???????? ???????? ????????
    ?????? ??????? ????? ??????? ??????? ?????????
    ????????? ???? ??? ????? ????? ???? ????? ?????
    ????????? ??????.??? ????? ?????? ????????
    ???????? ???????? ???? ??????? ????? ??????? ?
    ??? ??????? ??? ????? ?????? ????? ????????? ????
    ?????? ????? ?????? ??????? ????????. ??? ????
    ?????? ?? ???????? ???????? ???? ????? ??? ???
    ???? ????? ? ???? ??????? ???????? ????????
    ???????? ???????? ?? ???????? ?????? ??? ???????
    ?????? ????????? ?? ???????? ??????? ???? ????
    ????? ????? ??? ??????? ???????.

49
??? (4.1). ??????? ???? ???? ??????? ?? ?????
??????? ???????? ???????? ???????? (???????
???????? ??? ???????) ? ??????? ??????? ???????
????????? ?????????.
50
????? ??????? ???????
  • ?? ?????? ?? ??? ?????? ??????? ???????? ????????
    ? ??????? ??????? ???????? ????????????? ?? ????
    ???????? ???????? ?????? ????? ?????????
    ?????????? ?? ?????? ??????.???? ???? ???? ????
    ??????? ?????? ????? ??????? ????? ????????? ??
    ?????? ?????? ???????? ???????? ? ????????
    ????????????? ??? ???

  • (4.1)


  • (4.2)
  • ???
  • N ??? ???????? ???????? ? C ????? ??????
    ???????????? ? t ????? ?
  • k ???? ???? ???????

51
  • ?? ????? ??????? ??????? ???? ?????????? (4.1) ?
    (4.2) ????? ??????? ???????

  • (4.3)


  • (4.4)
  • ???
  • N ??? ???????? ???????? ??? ????? t ? C ?????
    ?????? ???????????? ??? ????? t
  • ? N0 ??? ???????? ???????? ????????? ??? ?????
    t0 ? C0 ????? ?????? ???????????? ?????????
    ??? ????? t0? D ??? ??????? ??????

52
  • ??? ??????? ?????? D ?? ????? ?????? ?????? ???
    ???????? ???????? ?? ????? ???????? ?????????????
    ?????? ????? 10 ( ?? ????? ?????? ?? ??????
    ??????????). ??? ??????? ?????? ????? ????? ????
    ???? ????? D ????? ????? ??????? ??? ??????.
  • ??? ?? ???? ????? ????? ???? ???? ??????? ?? ????
    D ?????? ??????? ??????? ??? ?????????? ???
    ????? ??????? ???????? (???????) ?????? Z ?
    ????? ???????? (Arrhenius Model) .

53
  • ????? ?????? Z ???? ??????? ??? ????????? ?????

  • (4.5)
  • ???
  • D1 ??? ??????? ?????? ??? ????? q1
  • D2 ??? ??????? ?????? ??? ????? q2
  • Z ???? Z ?? ?????? ??????? ?? ???? ???????
    ?????? ??? ??????? ?????? D ?????? ????? 10.
  • ??? ????? ?????? ????????


  • (4.6)
  • ???
  • k ???? ???? ???????
  • A ????
  • Ea ???? ???????
  • R ???? ????? ?????

54
  • ?? ?????? ?????? ????? ?????? Z ??????? ????????
    ???????? ???????? ???????? ? ????????? ?????
    ?????? ????? ???????? ??????? ??????? ??????? ???
    ???????? ?????? ? ???????? ?? ??????. ??????
    ?????? ?? ??????? ???????? ???? ????? ??? ?????
    ????? ???? D ? Z ?????? ?? ???????? ????????
    ?????????? ? ??? k ? Ea ? A ????? ?? ???????
    ???????? ?????????????.

55
??? (4.2). ????? ????????? ???????? ????????? ??
?????? ????? ?????? ???????
56
(No Transcript)
Write a Comment
User Comments (0)
About PowerShow.com