Design, Construction and Performance Evaluaton of Solar

7/23/2019 Design, Construction and Performance Evaluaton of Solar

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DESIGN, CONSTRUCTION AND

PERFORMANCE EVALUATON OF SOLA

DRYING SYSTEM FOR FOOD DRYING

APPLICATIONS

Guided By Project Members

Mr.M.Makeshkumar ME., E.Subash (12MER194

R.!ami"mara# (12MER2$%

S.!hi"ak (12MER2$&



'hat s )e*etab"e +ryi#*

t is a dua" -rocess o

1. /eat tra#ser rom heati#* source to the 0e*etab"e

2. Mass tra#ser o moisture rom 0e*etab"e to its surace a#d rom

the surace to the surrou#di#* air

)e*etab"e dryi#* is -racticed to e#ha#ce the -roduct "ie,

!o mi#imie osses duri#* stora*e a#d to reduce the

tra#s-ortatio# costs o 0e*etab"e -roducts.



Prob"ems 3ith !raditio#a" o-e# su#

dryi#*

/i*h 0e*etab"e "osses e#sue rom i#adeuate dryi#*

5u#*a" attacks

#sects, birds a#d rode#ts e#croachme#t

6#e7-ected rai# a#d other 3eather co#ditio#s



iterature re0ie3

+iemuodeke E. 8*he#eruo#a, Momoh 8.. usu., :+esi*# a#d

5abricatio# o a +irect ;atura" <o#0ectio# So"ar +ryer or

!a-ioca:,eo#ardo E"ectro#ic =our#a" o Practices a#d !ech#o"o*ies,

M.Moha#raj, P.<ha#drasekar., :Perorma#ce o a 5orced <o#0ectio# So"ar +rier

#te*rated 'ith Gra0e" >s /eat Stora*e Materia" 5or <hi"i +ryi#*:, =our#a" oE#*i#eeri#* Scie#ce a#d !ech#o"o*y

Buko"a 8. Bo"aji a#d >yoo"a P. 8"a"usi.,:Perorma#ce E0a"uatio# o a Mi7ed?Mode So"ar +ryer:,Re#e3ab"e E#er*y

Buko"a 8. Bo"aji , !ajudee# M.>. 8"aya#ju a#d !ai3o 8. 5a"ade.,:Perorma#ce E0a"uatio# o a So"ar 'i#d )e#ti"ated <abi#et +ryer:, !he 'est

#dia# =our#a" o E#*i#eeri#*



'hat is so"ar dryi#*

# so"ar dryi#*, so"ar e#er*y is used either as a sou" source o reuired

e#er*y or a su--"eme#ta" source

!he air "o3 ca# be *e#erated either by #atura" or orced co#0ectio#

!he heati#* -rocedure cou"d i#0o"0e -assa*e o -reheated air throu*h

the -roduct or by direct"y e7-osi#* the -roduct to so"ar radiatio# or

the combi#atio# o both



E7-erime#ta" Setu-



Materia"s

!ra#s-era#t co0er @ roo ? G"ass

>bsorber ? >"umi#ium

'a""s ? 'ood



Gra-hs to be -"otted

)e"ocities )s 8ut"et tem-erature, Re"ati0e humidity

!ime )s 8ut"et tem-erature, Re"ati0e /umidity, 'ei*ht o -roduct



Be#eits o so"ar dryi#*

+ried oods are tasty, #utritious, the #utritio#a" 0a"ue a#d "a0or o ood iso#"y mi#ima""y aected by dryi#*

+ried oods are hi*h i# iber a#d carbohydrates a#d "o3 i# at, maki#*them hea"thy ood choices

)itami# > is retai#ed duri#* dryi#*

Stora*e s-ace is mi#ima", easy?to?store

!ra#s-ortatio# costs are reducedA dried Products 3ei*h o#"y about 1C othe resh ood -roduct



!he e#er*y i#-ut is "ess tha# 3hat is #eeded to reee or ca#

easy?to?-re-areA so"ar ood dryi#* is a 0ery sim-"e ski""

"o#*er stora*e o dried -roducts outside the rid*eD

t is a abso"ute sae tech#o"o*y. ;o hi*h 0o"ta*e is used, #o risk ohi*h !em-erature #ot a#y harm cou"d be *e#erated by the dryer.

!he ood is sae, a"thou*h it cou"d be co#tami#ated beore dryi#*.Because o the -asteuriatio#?eect due to hi*hF tem-erature i#the dryer.



<om-are traditio#a" o-e# air?dryi#*

3ith the So"ar +ryer



<a# be used or

? fruits a--"es, *ra-es, -i#ea--"es a#d ba#a#a (taste *reat 3he#

dried, me"o#, ma#*oes, dates.

? vegetables (cabba*e, -e--ers, o#io#s, suash, tomatoes,

ce"ery, -otatoes, carrots, yams,? cor#, rise, cassa0a,



8-erati#* -arameters aecti#* the

so"ar dryers

+ryi#* air characteristics (such as dryi#* air tem-erature, humidity

a#d air "o3 rate

)e*etab"e 0ariab"es (such as moisture co#te#t, sie a#d 0e*etab"e

distributio#

+ime#sio#a" 0ariab"es ( 3idth, "e#*th a#d hei*ht or diameter o the

dryer , #umber o -asses



<o#c"usio#s

!his -roject aims to -rese#t the desi*#, co#structio# a#d

-erorma#ce e0a"uatio# o a so"ar dryi#* system or 0e*etab"e

-reser0atio#. > -rototy-e o the so"ar dryi#* system is to be desi*#ed

a#d its -erorma#ce is to be e0a"uated or diere#t air 0e"ocities.

!he so"ar dryer ca# raise the ambie#t air tem-erature to a

co#siderab"e hi*h 0a"ue or i#creasi#* the dryi#* rate o 0e*etab"es.

So"ar dryi#* o a*ricu"tura" -roducts a--ears to be i#a#cia""y uite

attracti0e or cash cro-s.

Documents

Design, Construction and Performance Evaluaton of Solar