Heat Exchanger Design for Gases: Air from 10-110 oC & Flue Gas 1259-725 oC

Click For Summary
SUMMARY

The discussion centers on the design of a heat exchanger for heating air from 10°C to 110°C and cooling flue gas from 1259.4°C to 725°C. Participants recommend using either a plate type heat exchanger or a transverse high-finned exchanger due to the gaseous nature of both fluids. Key design considerations include heat transfer area, working pressure, pressure drop, fouling factors, and mass flow rate, which are critical for successful manufacturing and operation.

PREREQUISITES
  • Understanding of heat exchanger types, specifically plate and shell and tube designs.
  • Knowledge of thermodynamics related to heat transfer and fluid dynamics.
  • Familiarity with design parameters such as heat transfer area and pressure drop.
  • Experience with fouling factors and their impact on heat exchanger efficiency.
NEXT STEPS
  • Research the design principles of plate type heat exchangers.
  • Investigate the performance characteristics of transverse high-finned exchangers.
  • Learn about calculating heat transfer area for gas-to-gas heat exchangers.
  • Explore methods for minimizing fouling in heat exchangers.
USEFUL FOR

Engineers and designers involved in thermal system design, particularly those focusing on heat exchanger applications in industrial processes involving gases.

djdemzy
Messages
1
Reaction score
0
Good Evening,

I am currently desiging a heat exchanger to heat Air from 10 oC to 110oC and cool flue gas from 1259.4 oC to 725 oC.

As both fluids are gases, i would like to know if it is advicable to use a shell and tube heat exchanger?

Could you suggest a heat exchanger type please ?


Thank You Very Much
Kind Regards


Paul
 
Engineering news on Phys.org
Paul,

There are many other influencing factors in a heat exchanger design including the temperature. Namely Heat transfer Area, Working Pressure, pressure Drop, Fouling Factors and Mass Flow rate etc. You need to consider these also. Because they'll might become a constraint in the manufacturing phase. But as per your provided information Plate type or Transverse High-Finned Exchangers are suitable.
 

Similar threads

Design of a shell and tube heat exchanger
  • · Replies 1 ·
Replies
1
Views
2K
What is the Formula for Calculating Heat Exchange in a Boiler Flue?
  • · Replies 2 ·
Replies
2
Views
3K
Heat Recovery Potential from Domestic Boilers & Ovens
  • · Replies 3 ·
Replies
3
Views
2K
How can I calculate the heat transfer in an air to air heat exchanger?
  • · Replies 22 ·
Replies
22
Views
5K
Fin/Fan heat exchanger mass and energy balance
  • · Replies 3 ·
Replies
3
Views
3K
Need advice and hints for working with helium
  • · Replies 14 ·
Replies
14
Views
1K
How Can I Design an Efficient Water Heating System for a High Flow Pool?
  • · Replies 18 ·
Replies
18
Views
3K
Spec'ing the power of heater for an atypical heat exchanger problem
  • · Replies 22 ·
Replies
22
Views
4K
Need some helps for a Heat Exchanger Optimization project
  • · Replies 1 ·
Replies
1
Views
2K
What is the preheat temperature for the water entering the gas boiler?
  • · Replies 10 ·
Replies
10
Views
3K