co dac chanh day
TRANSCRIPT
-
7/29/2019 Co Dac Chanh Day
1/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
MC LCCHNG I: TNG QUAN........................................................................................................2
1.1. NHIM V N.................................................................................................................2
1.2. NGUYNLIU CHANHDY .....................................................................................................3
1.2.1. nh danh 3
CHNG II. THIT K THIT B CHNH........................................................................252.1. CN BNG VT CHT V NNG LNG..................................................................25
2.1.1. CN BNG VT CHT 25
2.1.2. CN BNG NNG LNG: 26
2.2. TNH THIT B TRUYN NHIT......................................................................................322.2.1. H s truyn nhit 32
2.2.2. H s truyn nhit trong qu trnh gia nhit dung dch ban u t 30oC n 83.48oC 37
2.3. B MT TRUYN NHIT V THI GIAN C C.......................................................41
2.4. TNH THIT B C C.....................................................................................................43
2.4.1. ng knh 44
2.4.2. Chiu cao 46
2.4.3. Np 48
CHNG III: S NGUYN L V S .................................................................48THIT B CHNH.....................................................................................................................483.1. SNGUYNL..................................................................................................................48
3.1.1.S : 48
3.1.2. Hot ng ca h thng: 49
3.2. STHITBCHNH............................................................................................................50
3.2.1. S 50
3.2.2. Nguyn l hot ng 51
CHNG 4: KIM SOT V IU KHIN QU TRNH...............................................524.1. CC YU T NH HNG LN QU TRNH C C ..............................................52
4.4. CC THNG S CN KIM TRA:...................................................................................56
KT LUN.................................................................................................................................58TI LIU THAM KHO.........................................................................................................59
Trang 1
-
7/29/2019 Co Dac Chanh Day
2/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
CHNG I: TNG QUAN
1.1. NHIM V N
Thit k h thng thit b c c mt ni, vi cc thng s sau :
- Thit b c c mt ni, ni hai v, c cnh khuy.
- Nng sut sn phm: 1200 kg /m nc p chanh dy.
- Khi lng ring: 1050 kg/m3
- Nng sn phm : 40%.
- Dng hi nc bo ha c nhit ty chn.
Trang 2
-
7/29/2019 Co Dac Chanh Day
3/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
- Chn:
Thit b ngng t dng ng xon
Nng nhp liu: 14 %.
Cht ti nhit l nc nng, nhit cao nht ca cht ti nhit l 1000C.
p sut hi th thit b ngng t: pCK= 0,65 atm.
Nhim v chnh:
Tnh cn bng vt cht, cn bng nng lng.
Tnh thit b truyn nhit.
Tnh thit b chnh (ni c c).
V s nguyn l.
V s thit b chnh.
B qua tnh ton cc thit b ph.
1.2. Nguyn liu Chanh dy
1.2.1. nh danh
Tn khoa hc: Passiflora edulis Sims
H: Passifloraceae
Loi: Passiflora
Dng: Berry
Chanh dy thuc h Passifloracae v c h gn vi cy violet. C hn 500 loi
Passiflora, thuc h Passifloraceae, khong 50 trong s c th n c. Nhng ch mtloi duy nht, P. edulis Sims, mi c tn gi l Passion fruit. Trong loi ny, c hai dng
phn bit: dng ta (purple) thng thng v dng vng (yellow) khng ch mu
sc m cn mt s c im khc.
Trang 3
-
7/29/2019 Co Dac Chanh Day
4/60
-
7/29/2019 Co Dac Chanh Day
5/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
Chanh dy vng l loi cy nhit i hay cn nhit i, c trng ch yu
Hawaii, Fiji, Kenya, Papua New Guinea, i loan, Brazil, Colombia, Nam Phi,
Venezuela v Florida.
Cc vng trng chanh dy ln nht gm: Hawaii, Fiji, Australia, Kenya, Nam Phi,
New Guinea v New Zealand.
S pht trin ca cy chanh dy Vit Nam
y l loi cy hoang di. Gn y, ngy cng c nhiu sn phm c ch bin t
loi qu ny, iu ny to thm mt ging cy trng mi cho b con nng dn. Lm
ng l vng t c kh hu v th nhng thch hp cho loi cy ny. Nhng nm gn
y, chanh dy c nhiu ngi bit n v c by bn nhiu cc ch thnh ph H
Ch Minh, H Ni Chanh dy rt d trng, cho nng sut cao.Tuy nhin mc ch s
dng ph bin vn l n ti, ch bin nc gii kht, nc siro c c, ch bin thnh
xt dng km vi cc mn n khc trong nh hng.
Hin ti, Vit Nam c hai loi chanh dy, mt loi c chit ghp vi ging ca
i Loan, mt loi thun Vit. Theo ng y, cc hp cht trong chanh dy c tnh hn,gip b dng cho tim mch, lu thng kh huyt, h thn nhit Vi cc c tnh trn,
chanh dy ngy cng c ch khai thc v nhn rng, hng ti canh tc theo quy m
cng nghip.
1.2.1.2. M t c im
c im thc vt hc
Cch pht trin: chanh dy l mt loi cy dy leo khe, c bit l nhng vngnhit i. Tua ca cy bm vo hu ht bt c ch no ca vt chng n. Hng nm,
cy c th mc ln t 4m n 6m. Ni chung, y l loi cy c i sng ngn (t 5 7
nm).
Trang 5
-
7/29/2019 Co Dac Chanh Day
6/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
L: mc xen k, c dng thy su 3 lp, c rng ca khi trng thnh. L di 7cm
20 cm, mt trn lng v c mu xanh m, mt di nht hn v m c.
Hoa: mc trn mi t, c dng n, c mi thm, rng 5cm 8cm, gm c 5 i
trng hi lc, 5 cnh trng, mu ta m y. Hoa c 5 nh c bao phn, c bu nhy,
vi nhy phn lm 3 nhnh to nn mt cu trc ni bt gia. Dng qu ta ra hoa vo
ma xun v u ma h (thng 7 - thng 11) v ra hoa ln na vo ma thu v u ma
ng (thng 2 - thng 4). Hoa n vo lc sng sm v tn trc bui tra, hoa c kh
nng t tng hp.
Hnh 1.2: Hnh dng v cu to hoa chanh dy
Qu chanh dy: c hnh dng hi trn hay hnh trng, ng knh khong t 1-1,5
n 3 inches, c bao bc bi mt lp v dy (khong 3mm), cng, nhn v c ph lp
phn mng, c mu t m vi cc m nh v m, cho n vng nht hay mu vng
nh b ng. Gn vi lp v ngoi l lp ci trng dy khong 6mm. Rut chanh dy rng,bn trong cha nhiu ti nh cu to bng mng membrane c hai lp vch ngn, bn
trong cha dch qu mu vng cam v khong 250 ht nh, cng, mu nu sm hay en.
Chanh dy c hng v rt c o: thm nng, chua rt thanh v ngt m. Thc ung
ch cn cha 5% nc ct chanh dy cng c mi rt mnh. Mi chanh dy l s ho
Trang 6
-
7/29/2019 Co Dac Chanh Day
7/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
quyn ca mt lot nhiu th mi tri cy khc nhau nh i, thm, xoi, u Chanh
dy c v gn ging nh du, o hay m.
Hnh 1.1: Chanh dy vng v chanh dy
Cch chn la v tch tr
Chn qu to, nng, chc. Khi chn, da qu teo li, c ch trng nhng khng c b
mm nhiu, qu c mu ta m. Sc da trng c v xu, nhng khng c ngha l qu b
h. Tuy t khng nh hng n cht lng qu nhng trc khi d tr, cn ra v lau
kh nh nhng. Gi qu vng cha chn hn 20 oC vi m tng i t 85 90%. 30 oC, qu s qu chn. Qu chn gi trong 1 tun 2,22 - 7,22 oC. ng qu trong ti
polyethylene kn, khng c l 23,1 oC s gi qu c 2 tun. Ph bn ngoi mt lp
parafin v gi 5 7 oC v m tng i t 85 90% s ngn hin tng qu b nhn
li v duy tr c cht lng qu trong 30 ngy.
1.2.1.3. Thnh phn dinh dng
Gn 84% dch qu chanh dy l nc, cn li l cc hp cht thm, cc hp chtmu, cc cht sinh nng lng (ng, tinh bt) v cc cht vi lng (khong,
viatmin). Cht bo v protein cha trong dch qu chanh dy khng ng k, ch chim
khong 3-4% tng nng lng cung cp. Chanh dy cha nhiu vitamin A, C, cc cht
khong nh K v Fe nhng li cung cp t nng lng, mi tri ch cho khong 16
Trang 7
http://images.google.com.vn/imgres?imgurl=http://www.mitre10.co.nz/Image/info/143-PassfruitPurple.jpg&imgrefurl=http://www.mitre10.co.nz/how_to_guides/gardening/a_passion_for_passionfruit.cfm&h=173&w=180&sz=15&hl=vi&start=23&tbnid=8GZ6syRu2bV2DM:&tbnh=97&tbnw=101&prev=/images?q=%5C -
7/29/2019 Co Dac Chanh Day
8/60
-
7/29/2019 Co Dac Chanh Day
9/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
Bng 1.3: Hm lng ng ca 2 loi qu (% theo khi lng n c)
Loi chanh dy fructose glucose saccharoseQu ta 33,5 37,1 29,4
Qu vng 29,4 38,1 32,4
Tinh bt
Dch qu c hm lng tinh bt cao bt thng. Nc chanh dy p cha hm
lng tinh bt t 0,5 n hn 3%. Hm lng tinh bt ca chanh dy l 0,74%, cao
hn ca chanh dy vng 0,06%, trong amylose (ca c hai dng chanh dy) chim t
l khong 5,8 - 8,7%, cn li ch yu l amylose pectin. Kch thc ht tinh bt ca c
hai dng kh ging nhau (khong 4,0-12,2 m). Nhit ng c ca tinh bt (c hai
dng chanh dy) khong 58,5 67 oC, kh thp nn gy nh hng xu trong qu trnh
x l nhit dch qu do bm ln b mt thit b trao i nhit, gy nng cc b, nh
hng n hiu qu truyn nhit v lm gim cht lng hng chanh dy.
Cc acid hu c
Hm lng acid hu c cao cng l mt tnh cht c trng bn cnh mi v ca
chanh dy. Chnh lng acid hu c ny lm cho dch chanh dy c gi tr pH thp v v
chua rt gt.
Mt phm cht c bit ca chanh dy vng l hm lng acid citric cao. Ging nh
dch qu ca chanh, dch qu chanh dy c hm lng acid kh cao. Acid citric bao gm
tt c hm lng acid khng bay hi thay i t 93 - 96% tng lng acid, v acid malic
chim t 4 - 7%. Tc dng c ch cho c th ca acid citric c th l gip bo v, h tr
cho km v cc nguyn t vt khc.
Chanh dy vng c t acid ascorbic hn chanh dy nhng tng lng acid (ch
yu l acid citric) v hm lng carotene li nhiu hn.
Trang 9
-
7/29/2019 Co Dac Chanh Day
10/60
-
7/29/2019 Co Dac Chanh Day
11/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
Cc acid amin t do trong dch qu chanh dy gm c: arginine, acid aspartic,
glycine, leucine, lysine, proline, threonine, tyrosine v valine.
Enzyme
Dch qu chanh dy vng c cha enzyme catalase, c th b v hot hon ton 79oC trong vng 75 giy.
Dch qu chanh dy c cha enzyme methylesterase, b v hot 80 oC trong 60
giy. Ngoi ra, cc nh khoa hc cn pht hin s c mt ca hai loi enzym protease
trong chanh dy , acid protease v SH-protease. S dng caseine lm c cht, pH ti
thch cho acid protease l 2,3 v cho SH-protease l 5,7.
Cc vitamin v nguyn t khong
Viatmin C
Tri chanh dy c bit giu vitamin C. Viatmin C tan tt trong nc v ng vai
tr ch yu l mt cht chng oxy ho. Vitamin C gip bo v phn m mm ca c th,
ng thi c kh nng bo v plasma lipids v LDL Cholesterol khi cc gc t do.Ngoi ra, viatmin C cn ng vai tr quan trng trong vic duy tr h min dch ca c
th v thm ch lm gim nh mt s triu chng cm lnh ngi. Mt ly nc chanh
dy p cung cp khong 50% lng vitamin C cn thit trong ngy cho mt ngi
trng thnh nam, i vi n l 60%. Nc chanh dy l ngun thc n cung cp vitamin
C cc k tt.
Vitamin A
Chanh dy cng cha rt nhiu vitamin A. Rt nhiu carotenoid c tm thy trong
chanh dy c hot vitamin A khc nhau. Vitamin A l loi vitamin tan trong du, cn
thit cho th lc, da, s pht trin v ti sinh m t bo. Mt ly nc ct chanh dy cung
Trang 11
-
7/29/2019 Co Dac Chanh Day
12/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
cp khong 6000 I.U vitamin A. iu ny chng t chanh dy l ngun thc phm rt
giu vitamin.
Cc loi vitamin khc
Nc ct chanh dy cn cha nhiu riboflavin, niacin v acid folic.
Cc cht khong
Chanh dy cn cung cp nhiu cht khong nh potassium (K), mt cht in li
quan trng trong vic h tr m co bp ca tim, n nh cn bng acid-base v huyt p.
Chanh dy l s thay th cc k tt cho cc loi thc n khc nh chui hay cam. Cc
chuyn gia dinh dng khuyn co n ng v ph n nn dng 1,6 - 2g potassium/ngy.
Mt tch nc chanh dy p cung cp khong 34 - 72% lng potassium nn dng ny.
Chanh dy cn cha 10 - 13% nhu cu hng ngy v magnesium (Mg), mt nguyn
t khong gip n nh huyt p.
Bng 1.6: Hm lng potassium cha trong cc loi tri cy thng thng
Cc loi tri cy Potassium (mg/100g)
Chanh dy 278Bi 127
Kiwi 332
Xoi 156
u 257
Da 113
Chui 396Cam 169
(Ngun t USDA Nutrient Data Laboratory)
Alkaloids v cc hp cht Cyanogenic
Trang 12
-
7/29/2019 Co Dac Chanh Day
13/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
C 7 loi alkaloid trong chanh dy, 4 trong s c xc nh v t tn l
harman (c ngha l iu ho), harmin, harmol v harmalin. Cc th nghim dc l cho
thy dch chanh dy c tc dng an thn nh. Hm lng alkaloids trong chanh dy l
0,012 %, chanh dy vng 0,700 % (ch yu l harman).
Cc hp cht d bay hi
Cc hp cht d bay hi chim thnh phn chnh l cc ester t C2-C8 ca cc acid
bo C2-C8 thng gp nhiu loi tri cy khc. Cc sn phm phn hu ca cc
carotenoid ( -ionone, dihydro--ionone), cc cu t cha S v cc ester bo him gp
ng vai tr rt quan trng trong vic to ra hng v c trng ca chanh dy.
Ngai ra, do s ho quyn ca nhiu loi ester c trng khc nhau ca nhiu loi
tri cy khc m tri chanh dy c hng v v cng c bit. V d cc ester ethyl (Z)-
octa-4,7-dienoate v (Z)-Hex-3 enyl butanoate l cc ester c trng ca da v l.
Sc t
Sc t chnh trong dch qu chanh dy l carotenoid. Nc chanh dy p cha rt
nhiu loi sc t vng v cam ny. Cho n nay, c khong 13 loi carotenoid c tm
thy trong dch qu chanh dy, gm -, -carotene, phytofluene, -apo-12-carotenal, -
apo-8-carotenal, cryptoxanthin, auroxanthin, mutatoxanthin...
Cc carotenoids, c bit l beta-carotene, gip con ngi bo v cc t bo khi s
ph hu ca cc gc t do v c th gip li s hnh thnh cc t bo tin ung th. Ch
n giu carotenoids cho thy mi quan h cht ch gia carotenoids vi vic gim nguy
c ung th v, hng, phi, da v ung th d dy. Hot tnh chng oxy ho ca cccarotenoids c th cng quan trng trong vic gim nguy c ca bnh tim mch v c
thy tinh th mt.
Trang 13
-
7/29/2019 Co Dac Chanh Day
14/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
Dch qu chanh dy khng cha anthocyanin, cn hm lng flavonoids trong
chanh dy rt b, ch dng vt, trong chanh dy l 1,060%, trong chanh dy vng l
1,000%.
Cc sterol thc vt
Cc sterol thc vt c tm thy trong tt c cc loi thc n c ngun gc thc vt
v c cc nh khoa hc cho l c kh nng lm h thp cholesterol mu. Tng tiu th
thc n thc vt cha lng sterol cao c th c tc ng tch cc cho sc kho, mc d
cc li ch c th cng tu thuc cc yu t khc trong thc vt nh hm lng cht
x ho tan c. Chanh dy cha tng hm lng sterol thc vt cao nht so vi cc loi
tri cy n c khc. So vi ci xanh, ci brussel, sp l v liu en, chanh dy l s
thay th tuyt vi cho cc loi rau giu sterol. Mc d chanh dy cha lng sterol thc
vt tng i cao, nhng c th thy c tc dng lm gim lng cholesterol th cn
phi dng mt lng nc p rt ln.
1.2.1.4. Gi tr s dng ca chanh dy
Trong cng nghip thc phm
Phn tht qu chanh dy c th c dng ch bin cc mn n trong gia nh. V
d Australia ngi ta dng tht qu chanh dy vi kem hoc ng, lm mn salad tri
cy, lm thc ung hoc lm gia v.
quy m cng nghip, dch qu chanh dy dng sn xut nc qu c, hoc
phi trn vi ng v pha long vi nc cng dch qu ca cc loi tri cy khc (c
bit l cam v da) sn xut cc loi thc ung lnh. Nam Phi, nc ct chanh dyc phi trn vi sa v alginate, Australia th c dng trong sn xut sa chua.
Trong y hc
Cc alkaloid trong dch qu chanh dy c chit xut bo ch thuc an thn,
gim au. Ngoi ra, mt loi glycoside chit xut t chanh dy (c bit l P.incarnata L.)
Trang 14
-
7/29/2019 Co Dac Chanh Day
15/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
gi l passiflorine cng c dng bo ch thuc gim au v an thn chu u. Cc
nh ho hc Italia chit xut passiflofrine t l chanh dy P. edulis sy kh.
Madeira, nc ct chanh dy c dng nh mt cht kch thch tiu ho cho cc
bnh nhn ung th d dy.
1.2.2. Quy trnh sn xut
1.2.2.1. S quy trnh cng ngh
Trang 15
Chanhdy
Chn la
Ra
Lc th
Gia nhit
Bo qun
Thanh trng
Thnh phm
Qu h
B th
Ghp np
Li tm
Rt chai
C c
B
tinh
Chai
Np
V, ht
p
-
7/29/2019 Co Dac Chanh Day
16/60
-
7/29/2019 Co Dac Chanh Day
17/60
-
7/29/2019 Co Dac Chanh Day
18/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
+ Bin i tnh cht vt l: thi gian c c tng lm cho nng dung dch tng
dn n tnh cht dung dch thay i.
Cc i lng gim: h s dn nhit, nhit dung, h s truyn nhit, h s cp
nhit.
Cc i lng tng: khi lng ring, nht, nhit si, tn tht nhit do nng
.
+ Bin i tnh cht ha hc:
Thay i pH mi trng: thng l lm gim pH do cc phn ng phn hy amitca cc cu t to thnh cc acid.
ng cn d: do trong dung dch cha mt s mui Ca2+ t ha tan nng cao,
phn hy mui hu c to kt ta.
Phn hy cht c c.
Tng mu do caramen ha ng, phn hy ng kh, tc dng tng h gia cc
sn phm phn hy v cc amino acid.Phn hy mt s vitamin.
+ Bin i sinh hc:
Tiu dit vi sinh vt ( nhit cao).
Hn ch kh nng hot ng vi sinh vt nng cao.
1.2.2.2.7. Rt chai, ghp np
Dung dch chanh dy trong qu trnh bo qun v tn tr th hng v gim st r
rt. hn ch tnh trng ny ngi ta bo qun trong chai nha hoc thy tinh c
ghp np. Mt khc np chai phi c ghp tht kn v tht chc nhm m bo qu
trnh thanh trng khng b bt np hay h mi ghp.
Trang 18
-
7/29/2019 Co Dac Chanh Day
19/60
-
7/29/2019 Co Dac Chanh Day
20/60
-
7/29/2019 Co Dac Chanh Day
21/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
Nhm 1: dung dch i lu t nhin (tun hon t nhin) dng c c dung dch kh
long, nht thp, m bo s tun hon d dng qua b mt truyn nhit. Gm:
+ C bung t trong (ng trc bung bc), c th c
ng tun hon trong hoc ngoi.
+ C bung t ngoi (khng ng trc bung bc).
Nhm 2: dung dch i lu cng bc, dng bm to vn tc dung dch t 1.5-
3.5m/s ti b mt truyn nhit. C u im: tng cng h s truyn nhit, dng cho dung
dch c st, nht cao, gim bm cn, kt tinh trn b mt truyn nhit. Gm:
+ C bung t trong, ng tun hon ngoi.
+ C bung t ngoi, ng tun hon ngoi.
Nhm 3: dung dch chy thnh mng mng, chy mt ln trnh tip xc nhit lu
lm bin cht sn phm. c bit thch hp cho cc dung dch thc phm nh dung dch
nc tri cy, hoa qu p...Gm:
+ Mng dung dch chy ngc, c bung t trong hay ngoi: dung dch si to bt
kh v.
+ Mng dung dch chy xui, c bung t trong hay ngoi: dung dch si t to bt
v bt d v.
1.3.3.1.2. Theo phng php thc hin qu trnh
C c p sut thng (thit b h): c nhit si, p sut khng i. Thng dng
c c dung dch lin tc gi mc dung dch c nh t nng sut cc i v thi
gian c c l ngn nht. Tuy nhin nng dung dch t c l khng cao.
Trang 21
-
7/29/2019 Co Dac Chanh Day
22/60
-
7/29/2019 Co Dac Chanh Day
23/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
1.3.3.3. Yu cu thit b v vn nng lng
- Khong khng gian dung dch c c cn nh nht, khng c khongkhng cht.
- Dung dch chanh dy lu li trong ni vi thi gian ngn nht.
- C h s truyn nhit ln .
- Hi t phi m bo phn b u trong khng gian bn ngoi gia cc ng
ca dn ng (m bo nhit phn b u cho cc ng ca dn ng).
- m bo thot kh khng ngng tt. V kh khng ngng phng t cn
thot ra bnh thng. S tn ti ca kh khng ngng trong phng t s lm gim h s
cp nhit ca hi v do gim nng sut bc hi.
- m bo thot nc ngng t d dng. Vic thot nc ngng t c lin
quan cht ch n tc bc hi.
- Thit b n gin, din tch t d lm sch.
Thao tc khng ch n gin, t ng ho d dng
1.3.4. La chn thit b c c:
1.3.4.1. La chn phng n c c:
Phng n c c p sut kh quyn c u im v nhc im sau:
- u im: thit b n gin d ch to, d vn
hnh thit b, chi ph vn hnh thp
- Nhc im: nhit si ca dung dch cao nn
sn phm d b bin tnh bin mu bin mi
Phng n c c p sut chn khng c u im v nhc im sau:
- u im: nhit si ca dung dch c
gim ti a nn sn phm hn ch b bin tnh, bin mu, bin mi
Trang 23
-
7/29/2019 Co Dac Chanh Day
24/60
-
7/29/2019 Co Dac Chanh Day
25/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
CHNG II. THIT K THIT B
CHNH
2.1. CN BNG VT CHT V NNG LNG
2.1.1. CN BNG VT CHT
Cc s liu ban u:
Dung dch xir c:
- Nhit u 30oC, nng u 14% khi lng ng kh (ch s 14Bx)
- Nng cui 40% khi lng ng kh (ch s 40Bx)
Chn nhit ca nc trong v l 900C
p sut lm vic ca thit b c c l: P ck= 0,65 atm.
C c gin on vi nng sut 1200kg dung dch em c c/m.
2.1.1.1.Khi lng ring ca dung dch xi r theo nng
Nng
, %14
40
(kg/m3) 1050 1178,5
2.1.1.2. Cn bng vt cht cho cc giai onG = Gc + W
G.x = Gc.xc
Trong
G , Gc : lng dung dch u v cui, kg
Trang 25
-
7/29/2019 Co Dac Chanh Day
26/60
-
7/29/2019 Co Dac Chanh Day
27/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
2.1.2.1. Cc tn tht nhit Nhit si dung dch
Ta c tn tht nhit si theo nng dung dch si r p sut kh quyn (s tay
QTTB tp 2). T suy ra nhit si dung dch sir p sut kh quyn theo cc nng
l:
Nng dung dch,
%14 40
' Pa, oC 1 1,5
Nhit si dung
dch Pa, oC103 106,5
2.1.2.2. Xc nh tn tht nhit do nng v nhit si dung dchxi r theo
nng p sut P1 = 0.35 atm
Theo phng php Babo
22
12 t
OH
dd
tOH
dd
PP
PP
=
* Xt dung dch xi r 14%
Nhit dung dchxi r 14% Pa = 1.033 at l 110oC
110oC p sut hi nc bo ha l 1.461 at
Ta cn xc nh nhit si dung dch P1 = 0.3636 at
110OH
dd
tOH
dd
22PP
PP
=
Trang 27
-
7/29/2019 Co Dac Chanh Day
28/60
-
7/29/2019 Co Dac Chanh Day
29/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
dm : Khi lng ring dung mi tsdm
Chiu cao v o trn thn thit b truyn nhit Ho = 300mm
Tnh cho trng hp dung dch xi r 14%
Do trong khong nhit nh, hiu s dmdd thay i khng ng k nn ta chn
tra dmdd, 30oC3/995 mkgdm =
3
%)14(dd m/kg1050=
[ ] 1011.03,0*)9951050(*0014.026.0H op =+= m
at00265.0m/N34.2601011.0*81.9*1050*2
1*5.0H*g**5.0P 2ophh ====
at36625.000265.03636.0PPP 1tb =+=+=
Nhit si ca H2O 0.36625 at l 74.998oC 75 oC
tng nhit si do ct thy tnh
C95.105.7375tt 0)P(sdm)P(sdm''
1tb===
nhit si dung dch xir 14% p sut P1+ P
C49.8395.154.81t 0)PP(sdd 1 =+=+
Tnh tng t ta c
Nng dung dch, % 14 40'' , oC 1.95 1.95
)PP(sdd 1t
+ 83.49 85.38
2.1.2.4. Cn bng nng lng cho cc giai onTa c:
* Phng trnh cn bng nhit
ctwcccnnnD QQcDiWtcGtcGiDcD +++=++ ......).1.(...''
.
''
Vi
Trang 29
-
7/29/2019 Co Dac Chanh Day
30/60
-
7/29/2019 Co Dac Chanh Day
31/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
tD =100oC
* Nhit ha hi ca nc p sut 1 atm
r = 2171.103 J/kg (s tay QTTB tp 1)
* Entanpi ca hi th 73.05oC''wi =2632.2*103 J/kg (s tay QTTB tp 1)
* Tn tht nhit: Qt = 0.10*QD
* Tn tht nhit c c: Qcd = 0.10*QD
A. Giai on a dung dch 14% t 25oC n 83.48oC
G = Gc = 1200 kgc = cc =3376.5 J/kg
t = 30oC ; tc =83.49oC ; W = 0 kg
Nhit lng tiu tn cho qu trnh
Q1 =1200*3376.5*(83.49-30) =216.73*106 J
Nhit lng cn cung cp ( k c tn tht )
QD1 = J10*22895.0
Q 61 =
Tn tht nhit:
Qt1=0.10*QD = 0.10* 228*106= 228*105 J.
Tn tht nhit c c:
Qcd1 = 0.10*QD= Qt= 228*105 J.
B. Giai on a dung dch t 14% n 40%
G = 1200 kg ; c =3376.5 J/kg ; t =83.49oC
Gc = 420kg ; cc = 3213.8 J/kg ; tc = 85.38oC
W = 780 kg
Nhit lng tiu tn cho qu trnh:
Q2 = 420*3213.8*85.38 1200*3376.5*83.49 + 780*2632.2*103
Trang 31
-
7/29/2019 Co Dac Chanh Day
32/60
-
7/29/2019 Co Dac Chanh Day
33/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
tdd : nhit dung dch si, oC
1vD1ttt =
ddv2 ttt 2 =
21 vvvttt =
( )1vDm
tt2
1t += : nhit mng nc ngng, oC
A. Pha nc si bc hi bo ha
111 t.q = (1)
Theo cng thc4
11 H*t
r*A*04.2
= (2)
Vi A=25.0
32.
ph thuc vo nhit tm
tm , oC 40 60 80 100 120 140 160 180 200
A 139 155 169 179 188 194 197 199 199
: khi lng ring ca nc nhit tm, kg/m3
: h s cp nhit ca nc nhit tm, W/mK
: nht ca nc nhit tm, Pas
r : n nhit ngng t ca hi nhit tD
r = 2171*103 J/kg
H = 0,3 m: chiu cao vch truyn nhit pha v o
B. Pha dung dch
q2 = 22 t. (3)
Theo cng thc435.0
dd
n
n
dd
2
n
dd
565.0
n
ddn2 .c
c...
=
(4)
Trang 33
-
7/29/2019 Co Dac Chanh Day
34/60
-
7/29/2019 Co Dac Chanh Day
35/60
-
7/29/2019 Co Dac Chanh Day
36/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
4. Tnh vt theo cng thc (6) vi qv = q1 2vt,t
2
5. Tnh n
theo cng thc (5) vi q = q16. Tnh 2 theo cng thc (4)
7. Tnh q2 theo cng thc (3)
8. Tnh qtb = ( )21 qq.21
+
9. Xc nh sai s ss =1
tb1
q
qq
Nu ss > 5% th chn li 1vt v lp li qu trnh tnh n khi t sai s nh
11. Tnh K theo cng thc (7)
2.2.1.2. Tnh K cho cc giai on
A. Tmh nng 14%
Chn
K2.5t7.127t 1v1 ==
Tnh 1
( ) 09.191AC3.1307.1279.132*21t om ==+=
8.89535.1*2.5
10*2171*09.191*04.2
H*tr
*A*04.2 43
4
11 === W/m2K
2
111 m/W968.465592.5*84.8953t.q ===
C6.2810*143.6*968.46559r.qto4
v1v ===
C1.996.287.127t ov2 ==
C62.1548.831.99t o2 ==
21.499616.35669*968.46559*56.0p*q*56.0 15.07.015.07.01n === W/m2K
435.0
3
32565.0
210*31.1
10*38619.0*
44.4189
5.3376*
97.975
1239
66983.0
577.0*21.4996
=
Trang 36
-
7/29/2019 Co Dac Chanh Day
37/60
-
7/29/2019 Co Dac Chanh Day
38/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
A. Pha nc si bc hi bo ha
111
t.q
=
4
11 H*t
r*A*04.2
=
A xc nh theo tm
r = 2171*103 J/kg
H = 1.5 m
B. Pha vch
=
v
vv r
tq
= 124v )Km/W(10*143.6r
C. Pha dung dch
222 t.q =
l
.Nul.Nu dd2
dd
2
==
Trong
( )nPr.Gr.CNu=
dd
dddd.cPr
=
2dd
2dd3dd g.t...lGr
=
C v n ph thuc vo Pr v Gr nh sau:1. Gr.Pr 310 th Nu = 0.5
2. Gr.Pr 50103 = th ( ) 125.0Pr.Gr18.1Nu=
3. 710.2500Pr.Gr = th ( ) 25.0Pr.Gr54.0Nu=
4. Gr.Pr 710.2> th ( ) 33.0Pr.Gr135.0Nu=
Trang 38
-
7/29/2019 Co Dac Chanh Day
39/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
l: chiu cao v o truyn nhit, l = 0,3 m
dddddddddd c,,,, : khi lng ring ( kg/m3 ), h s dn n th tch ( K-1 ), h
s dn nhit ( W/mK ), nht ( Pa.s ), nhit dung ring ( J/kg ) ca dung dch
xi r ly nhit mng
+=
2vdd
_
m tt21
t
Vi Ct odd 24.54)3048.83(2
1_ =+=
3dd m/kg1239=
cdd = 3376.5 J/kg
3dd 10*31.1
= Ns/m2
mK/W577.0dd =
ca dung dch xi r 14%
To ,oC 0 20 40 60 80 100 120310. 0.425 0.455 0.48 0.505 0.535 0.57 0.605
D. H s truyn nhit
++=
2v
1
1r
11
K
, W/m2K
* Trnh t tnh lp
(1). Chn 1v tt 1
(2). Tnh 1
(3). Tnh q1
(4). Tnh 2v1 ttt 2
(5). Tnh Nu2 2
(6). Tnh q2
Trang 39
-
7/29/2019 Co Dac Chanh Day
40/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
(7). Tnh qtb = ( )21 qq21
+
(8). Tnh ss =q
qq tb1 , tnh cho n sai s nh (v phi nh hn 5% )
E. Thc hin tnh lp
(1). Chn C3.121t ov1 =
K6.113.1219.132t1 ==
tm= ( ) C1.1273.1219.1322
1 o=+ 13.190A =
(2). Km/W68.72895.1*6.11
10*217113.190*04.2 24
3
1 ==
(3). 2111 m/W29.845606.11*68.7289tq ===
(4). === K95.5110*143.6*29.84560r.qt 4v1v
C35.6995.513.121t ov2 ==
K11.1524.5435.69t2 ==
(5). Tnh 2
67.7577.0
10*31.1*5.3376.cPr
3
dd
dddd ===
( ) 50.0C795.6135.6924.5421
t o'm ==+=
( )14
23
23
10*273.210*31.1
81.9*11.15*508.0*1239*5.1Gr ==
ta thy Gr.Pr > 2.107
99.14454)Gr(Pr**135.0Nu
33.0
==
35.5560l
.Nu dd2 ==
W/m2K
(6). 2222 m/W89.84016t.q ==
(7). qtb = 84288.59W/m2
Trang 40
-
7/29/2019 Co Dac Chanh Day
41/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
(8). ss=0.003=0.3% (tho)
Vy h s truyn nhit giai on ny
Km/W74.1073
35.55601
10*143.668.7289
11
K 24
=++
=
2.3. B MT TRUYN NHIT V THI GIAN C C
Phng trnh truyn nhit cho khong thi gian nh dT
dQ= K.F(T-t).dT
Gi s n cui qu trnh dung dch vn ngp ht b mt truyn nhitF
khngi, T khng i
d.F T= ( )tTKdQ
Ly tch phn ta c
F.T2 = ( ) Q
0tTK
dQ(1)
T2 : thi gian c c ( khng k thi gian gia nhit cho dung dch u n
83.48oC ), s
Q : nhit lng tiu tn cho qu trnh ny, J
* Ta tnh tch phn (1) bng th. Cn xc nh Q, ( )tTK1
tng thi im.
Nng dung dch, % 14 40
Q.10-8, J 0 11.94
t(tsdd), oC 83.49 85.38
K, W/m2K 946.44 911.8
T-t 49.42 47.53
510*)tT.(K
1
2.1 2.3
V th c : trc honh : Q
Trang 41
-
7/29/2019 Co Dac Chanh Day
42/60
810.Q
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
: trc tung : ( )tT.K1
othxac nh thi gian coac vabemat truyen nhiet
0
1
2
3
4
0 5 10 15 20 25 30
Tng qu trnh c c t 14% n 40%
S = F. T = 67306 m2
.s* Chn thi gian c c l 40 pht
B mt trao i nhit l: F = 67306 / 2400 = 28.04 m2
Thi gian: T1 = 26268 / 28.04 = 936.8 s
* Thi gian gia nhit ban u
.F.t.KQ = T
T =F.t.K
Q
Vi Q : nhit lng dng cho gia nhit, J
K : h s truyn nhit cho qu trnh gia nhit, W/m2K
t : chnh lch nhit , K
Trang 42
510.)tT(K
1
-
7/29/2019 Co Dac Chanh Day
43/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
( ) ( )Kt 89.74
48.839.132
259.132ln
48.839.132259.132=
=
T = phts 5.4425.27104.28*89.74*74.1073
10*12.6 8=
* Chn thi gian nhp liu 15 pht
Thi gian tho sn phm 15 pht
* Tng thi gian c c 1 m l
Tt = 15 + 4.5 + 40 + 15 = 74.5 pht
Ta chn tng thi gian c c l 75 pht
2.4. TNH THIT B C C
Bung t v o:
ng knh ni c c: dn=250mm
ng knh v o: Dva=320mm
Chiu cao truyn nhit ca v o : h=300mm.
Din tch b mt truyn nhit : F = 0,25 m2
Ta ly an ton : F = 0,3 m2 ( 20%)
Chiu cao vch truyn nhit : H = 0,3
Kim tra iu kin : tit din ngang bung t v o > 0.25 tit din ngang ca ni c
c :
25.0
4
)(4
2
22
=
d
dD
S
S
o
th
(tha)
y
Chn y elip tiu chun c g
Tra s tay QTTB 2 ta c
Trang 43
-
7/29/2019 Co Dac Chanh Day
44/60
-
7/29/2019 Co Dac Chanh Day
45/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
4
2
)(bbtr
hhi
D
V
=
2
)(.
7438.3*4
bbtr
hiD
=
Vn tc lng
Xc nh theo cng thc:
( )
h
lhlo
..3
d..g.4
=
Trong
l : khi lng ring git lng, kg/m3
h : khi lng ring hi th, h = 0.2224 kg/m3
dl : ng knh git lng, dl = 0.3 mm = 3*10-4 m
: h s tr lc
Ta c
l= 976.57 kg/m3, tra nhit 72.05oC
tnh theo Re
h
hh .d.Re
=
Vi h =0.0106*10-3 Pa.s : nht ng lc hc ca hi th
Gi s 0.2< Re < 500
Trang 45
2.1
)bb(tr6.0
2
)bb(tr
6.0D*0788.3
D
86.19
5.18
Re
5.18=
==
-
7/29/2019 Co Dac Chanh Day
46/60
-
7/29/2019 Co Dac Chanh Day
47/60
-
7/29/2019 Co Dac Chanh Day
48/60
-
7/29/2019 Co Dac Chanh Day
49/60
-
7/29/2019 Co Dac Chanh Day
50/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
Sau khi nhp liu 1200kg nguyn liu, qu trnh c c s bt u xy ra di
p sut chn khng do bm chn khng to ra.
Hi t theo ng dn a vo bung t. Hi th ngng t theo ng dn nc
ngng qua by hi chy ra ngoi v phn kh khng ngng c x ra ngoi theo ca x
kh khng ngng.
Hi th bc ln theo ng dn vo thit b ngng t Baromet, ngng t thnh lng
chy ra ngoi bn cha, phn khng ngng qua b phn tch git ch cn kh theo
bm chn khng ra ngoi.
Ton b h thng (thit b ngng t Baromet, thit b c c ) lm vic iu kin
chn khng do bm chn khng to ra.
Sau thi gian c c tnh, dung dch ng c bm ra ngoi theo ng tho sn
phm nh bm ly tm, vo thng cha sn phm.
3.2. S thit b chnh
3.2.1. S
Trang 50
-
7/29/2019 Co Dac Chanh Day
51/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
3.2.2. Nguyn l hot ng
Nguyn liu c nhp liu vo truyn nhit n nhit si ri mi cho vo ni c
c s trao i nhit vi hi thng qua cc ng truyn nhit s tr nn nh hn v c
tun hon tr ln pha bung bc. Ti y, hi nc c tch ra khi dung dch, dung
dch i theo ng tun hon trung tm xung y thit b v theo ng nhit tr ln trn.
Qu trnh trao i nhit c thc hin ch yu trong ng truyn nhit.
Sau nhiu ln nh vy, hi nc tch khi dung dch cng nhiu nng dung dch
cng tng, nht dung dch tng. Do , tc chuyn ng dung dch cng chm li
v sau. Qu trnh kt thc khi dung dch t c nng theo yu cu.
Tc chuyn ng tun hon cng tng th h s cp nhit v pha dung dch cng
tng, qu trnh bc hi xy ra cng mnh m, nng cht tan cng nhanh chng t yu
Trang 51
-
7/29/2019 Co Dac Chanh Day
52/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
cu v ngc li. Tuy nhin s hao ph nng lng khuy. Do , ta dng bin php khc
l tng ng knh ng truyn nhit.
CHNG 4: KIM SOT V IU
KHIN QU TRNH
Mc tiu iu khin qu trnh c c l sn phm thu c phi t nng , nng
sut theo yu cu ng thi, phi m bo c cn bng vt cht v nhit lng.
t c mc tiu trn ta phi kho st ton b h thng c c, xc nh cc
thng s cn kim tra v iu chnh, xc nh cc yu t nhiu cng nh la chn cc i
lng cn iu chnh, cc tc ng iu chnh, la chn cc thit b iu khin v kim
tra.
4.1. CC YU T NH HNG LN QU TRNH C C
Tc ng nhiu cho php n nh :
Lu lng, nhit dng nhp liu:G, t
Trang 52
-
7/29/2019 Co Dac Chanh Day
53/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
Nhit cht ti nhit: tD
y l cc yu t ta c th kim sot c chng, c th n nh c chng.
i vi dng nhp liu cc thng s c bn lu lng, nng , nhit s c
nh hng n cht lng dng thnh phm, cng nh nh hng n din bin ca qu
trnh c c.
nh hng ca dng nhp liu:
Nu nhp liu ng nh tnh l 10 lt /m v cc yu t khc u n nh th qu
trnh c c xy ra ng nh ta d on, cht lng dng thnh phm c bo m
nhng nu:Nh hn 10 lt /m (trong khong cho php): qu trnh c c xy ra nhanh, c th
khng dung dch cho qu trnh cp nhit ca nc nng, iu ny c th nh hng s
si trong ni, hi bc ln nhiu, nh hng n chn khng, nh hng n cht
lng sn phm.
Ln hn 10 lt /m (trong khong cho php) : lc ny lng nhit do nc nng
cung cp s khng lm bay hi dung mi, nng dng thnh phm khng t,
gim khong khng gian bc hi, nh hng n qu trnh bc hi, qu trnh c c dinra chm.
nh hng ca p sut lm vic thit b c c:
Nu p sut lm vic ca thit b thp tc nhit hi th thp dn n tc bc
hi ln. Trong trng hp mt chn khng do thit b r khng kh vo dn n nhit
dung dch cao, thi gian c c di, qu trnh c c km hiu qu.
nh hng ca nhit cht ti nhit:
Nhit cht ti nhit thp hn tnh ton nhit cp vo dung dch khng , tc
c c khng m bo.
Nhit cht ti nhit cao hn tnh ton nhit cp vo dung dch tha, dung dch si
mnh, c th xy ra s c dung dch si ln bt nh hng qu trnh c c.
Trang 53
-
7/29/2019 Co Dac Chanh Day
54/60
-
7/29/2019 Co Dac Chanh Day
55/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
C nhiu i lng c trng cho mc ch iu khin, ta khng th no p ng ht
cc i lng cho nn phi tm cc thng s, i lng no ca qu trnh c c c
ngha quan trng nh hng trc tip n mc ch iu khin, v tm cch iu chnh
chng. Ta gi cc i lng ny l i lng cn iu chnh.V t mc tiu iu
khin ca qu trnh c c ta c th xt cc i lng sau:
Nng sn phm:xc
p sut trong ni: P
Lng nhp liu
Mc dung dch trong ni Nhit dng nhp liu vo ni c c: t
Xt nng sn phm :
Nng sn phm chnh l nng m ta mun dung dch phi t sau qu trnh c
c, v ta cng mong mun nng ny n nh trong sut qu trnh, nu c s xo trn
nng ny th cht lng sn phm s khng t yu cu cho cc cng on sau.
Xt p sut trong ni :
Qu trnh c c tin hnh vi p sut ni cui cng l p sut chn khng, mc
ch l gim nhit bc hi trnh nh hng cht lng sn phm . Do dung dch
ng khng chu nh hng nhiu t thng s nhit cho nn mc ch ny l quan
trng. D c tin hnh trong iu kin no th p sut trong ni cng phi c n nh v
n c nh hng n nhit bc hi, nh hng n kh nng tch dung mi ca dung
dch.
Nu p sut qu thp (chn khng cao), im si cng thp, p sut hi cng ln,
dung dch ng si cng mnh. Nhng nu chn khng cao hn na, nht ln nh
hng n i luv truyn nhit.
Nu p sut qu cao (chn khng thp ) th kh nng bc hi ca dung mi s gim,
nh hng n nng sn phm
Trang 55
-
7/29/2019 Co Dac Chanh Day
56/60
-
7/29/2019 Co Dac Chanh Day
57/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
3 p sut hi th trong ni Lu lng nc lnh vo TBNT
Dng c o v iu khin:
o p sut bng p k bin dng loi hp xp kiu xiphng v y l loi p k c
cu trc n gin v tin cy, kch thc nh, d c, chnh xc cao v c khong o cao,
c s dng nhiu o v ghi li p sut v chn khng.
o nng sn phm ta dng chit quang k cm tay
o nhit ta dng nhit k ng h v nhit k in t lm vic trn nguyn tc
cp nhit in v y cn chnh xc cao.
Trang 57
-
7/29/2019 Co Dac Chanh Day
58/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
KT LUN
H thng c c c thit k gm ni c c v thit b ngng t ng xon kh
n gin, khng phc tp, khng cn thit b gia nhit ban u. Thi gian c c tng
i ngn, h s truyn nhit t c trong qu trnh c c l kh cao.
Thit b tng i nh gn, gi thnh khng qu cao c th chp nhn c.
Tuy nhin ta kh c th iu khin c qu trnh c c v thi gian c c c
th thay i khng n nh, nng t c l khng cao.
Qu trnh c c l qu trnh cn thit trong cng ngh ha cht v thc phm nncn c nghin cu pht trin c c hiu qu c c cao, chi ph thp.
Do kin thc cn hn ch, thi gian c hn nn chng em tnh ton khng khi
thiu st nn knh mong Thy ch dy thm. Chn thnh cm n.
Trang 58
-
7/29/2019 Co Dac Chanh Day
59/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
TI LIU THAM KHO
[1] Cc tc gi, S tay Qu trnh v thit b Cng ngh ho cht, Tp 1, NXB Khoa
hc v K thut, 1992
[2] Cc tc gi, S tay Qu trnh v thit b Cng ngh ho cht, Tp 2, NXB Khoa
hc v K thut, 1992
[3] Phm Vn Bn (ch bin) Nguyn nh Th, Gio trnh QT & TB CNHH tp
5 : Qu trnh v thit b truyn nhit, NXB H Quc gia TP HCM, 2002
[4] Phm Vn Bn V B Minh Hong Minh Nam, QT & TB CNHH tp 10 : Vd v Bi tp, Trng H Bch Khoa TP HCM
[5] Phm Vn Bn, QT & TB CNHH tp 11 : Hng dn n mn hc, Trng H
Bch Khoa TP HCM, 1993
[6] Trn Hng Dng Nguyn Vn Lc Hong Minh Nam V B Minh, QT &
TB CNHH tp 1, quyn 2 : Phn ring bng kh ng, lc ly tm, Bm, qut, my nn,
Tnh h thng ng ng, NXB H Quc gia TP HCM, 1997
[7] H L Vin, Thit k tnh ton cc chi tit thit b ha cht, NXB Khoa hc v K
thut, 1978
[8] Hong nh Tn, Truyn nhit & Tnh ton thit b trao i nhit, Trng H Bch
Khoa TP HCM, 1996
[9] Nguyn Vn La, QT & TB CNHH tp 1, quyn 1: Khuy Lng Lc, NXB H
Quc gia TP HCM, 2002
[10] Tp th Tc gi B mn My v Thit b Khoa Cng ngh Ho hc v Du kh
Trng i hc Bch Khoa i hc Quc gia Tp. H Ch Minh, Ti liu hng dn
Thit k An Mn hc Qu trnh & Thit b.
[11]. Phm Vn Bn Nguyn nh Th, Qu trnh v Thit b CNHH & TP Tp 5 :
Qu trnh v Thit b Truyn nhit. Nh xut bn i hc Quc gia Tp. H Ch Minh.
Trang 59
-
7/29/2019 Co Dac Chanh Day
60/60
n hc phn K Thut Thc Phm
GVHD: o Thanh Kh
[12]. Tp th Tc gi. S tay Qu trnh v Thit b Cng Ngh Ho Cht Tp 1&2 ,
Nh xut bn Khoa hc v K thut H Ni, 2004.
[13]. Phm Vn Bn. S tay dn nhit khng n nh Thng s nhit l ca Thc
phm v Nguyn liu.
[14]. Phm Vn Bn, Qu trnh v Thit b Cng ngh Ho hc v Thc phm Tp 5,
quyn 2 Truyn Nhit khng n nh , Nh xut bn i hc Quc gia Tp. H Ch
Minh, 2004.
[15]. Phm Vn Bn, Qu trnh v Thit b Cng ngh Ho hc v Thc phm Bi
tp Truyn Nhit, Nh xut bn i hc Quc gia Tp. H Ch Minh, 2004.