3 replies to this topic

[shamir]

HI All

 

     I want to calculate  mass flow rate of hot air , energy requirment  of evaporation rate of water in  spray dryer,

    

       

Type of spray dryer: co-current spray dryer.

Heating media : hot air .

Inlet temp of air : 130 0c

Outlet temp of air : 60 0c

Inlet moisture content= 40 %

outlet moistrue content =1.5%

specific heat of material = 0.7 kj/kgk

 

 

                       

 

 

           

 

[breizh]

Shamir ,
Unless you have way to measure the air flow rate or air velocity , there is no way to get access to the mass flow rate of air with the data submitted .

 

You may be able to perform a mass and heat balance on the product side which could help you to determine the air flow .

Breizh

Edited by breizh, 13 June 2015 - 02:05 AM.

[shamir]

 heat load requirments.xlsx   10.51KB   46 downloadsThanks for guidance,

 

i have calculated mass and energy balance of spray dryer with assumption of 30% losses in dryer . But i am not confident  about the load that i have calculated. i have also attached energy balance calculations so please guide further for the same.

 

In addition to that what are the consideration for heat load calculations. 

[breizh]

http://www.nzifst.or...ions/drying.htm

Shamir ,
I've added a link to support your work . You should review the basic about energy balances and drying process.
Enjoy
Breizh