Determine temperature of flue gases, Chemistry

Assignment Help:

A heat recovery device involves transferring energy from hot flue gases passing counter currently through an annular region to pressurized water flowing through the inner tube of the annulus. The inner tube has inner and outer diameters of 24 and 30 mm, respectively, and is connected by eight struts to an insulated outer tube of 60 mm diameter. Each strut is 3 mm thick and is integrally fabricated with the inner tube from carbon steel (k = 50 W/m K). Consider the situation for which water and flue gases enter the device at 300 K and 800 K, respectively. The flue gases may be assumed to have properties of air. The mass flow rate of water is 0.2 kg/s. The mass flow rate of flue gases at 1.0 kg/s. If the desired outlet temperature of the pressurized water is 350 K, determine:

215_flow rate.png

i)  The outlet temperature of flue gases

ii)  The heat transfer coefficient at the water side

iii) The heat transfer coefficient at the air side

iv) The overall heat transfer coefficient based on the inside perimeter (Ui)

v)  The required length of this heat recovery device

Hints:   1)  The struts can be treated as rectangular fins with an adiabatic tip.

            2)  Assume a uniform heat transfer coefficient on the flue gas-side (ho).


Related Discussions:- Determine temperature of flue gases

GRAPHITE FURNACE AAS, What are the advantages of graphite furnace AAS? tell...

What are the advantages of graphite furnace AAS? tell the history of graphite furnace AAS

Explain the process of threshing, Threshing The process of threshing se...

Threshing The process of threshing separates the kernels from the stalks or panicles on which they grow. Threshing may take place in the field, or at the homestead or village;

Fiehes test, sir plz tell me about fiehes test procedure for honey in detai...

sir plz tell me about fiehes test procedure for honey in detail...

STOCHIOMETARY, Ask quCOPPER REACT REACT WITH OXYGEN TO FORM TWO OXIDES X AN...

Ask quCOPPER REACT REACT WITH OXYGEN TO FORM TWO OXIDES X AND Y ON ANALYSIS 1.535g OF X YIELDED 1.365 OF COPPER AND 1.450 OF Y YIELDED 1.160g OF COPPER 1 DETERMIN THE CHEMICAL FOR

Summery, i wanna someone help me to do summery from 2 pages like essay for ...

i wanna someone help me to do summery from 2 pages like essay for articl?

Tritium is the isotope of, Tritium is the isotope of: (1) Hydrogen     ...

Tritium is the isotope of: (1) Hydrogen      (2) Oxygen       (3) Carbon               (4)Sulpher Ans:  Hydrogen

Water and its treatment, hardness of borewell water is less than that of se...

hardness of borewell water is less than that of seawater

Dipole moment, why dipole moment of CH3CL is more than CH3F

why dipole moment of CH3CL is more than CH3F

Potentio meter, hoe to calibrate potentio meter in lab ?

hoe to calibrate potentio meter in lab ?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd