Chosing air blowers to force air through a solar heat storage array

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SUMMARY

The discussion centers on the design of a solar collector utilizing a rectangular hollow steel bar measuring 4×8 cm filled with gravel for heat storage. The primary objective is to blow air through this structure to preheat air for a gas combustion oven, thereby reducing gas consumption. Participants inquire about the necessary airflow, dimensions, and whether a standard fan suffices or if a specialized blower is required for optimal performance.

PREREQUISITES
  • Understanding of solar thermal energy systems
  • Knowledge of airflow dynamics and requirements
  • Familiarity with gas combustion ovens
  • Basic principles of heat transfer
NEXT STEPS
  • Research airflow requirements for solar heat storage systems
  • Investigate the differences between standard fans and air blowers
  • Explore materials suitable for heat storage in solar collectors
  • Learn about the design and efficiency of solar thermal collectors
USEFUL FOR

Engineers, renewable energy enthusiasts, and anyone involved in designing solar heating systems or optimizing gas combustion processes.

Salah
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hi guys:
i plan to make solar collector using rectangular hollow steel bar 4×8cm filled with gravel as heat storage and blow air through it and direct that air as preheated for gas combustion oven to reduce gas consumption .can i use a normal fan or it has to a blower?
 
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Welcome, @Salah !

Do you know how much air will need to flow through one of the hollow steel bars?
How long each?
Vertical or horizontal?
What size stone?

I am assuming that you will have some of those in parallel.
 
Salah said:
i plan to make solar collector using rectangular hollow steel bar 4×8cm filled with gravel as heat storage and blow air through it and direct that air as preheated for gas combustion oven
Can you upload a dimensioned sketch of your proposed system? That would help a lot, thanks.

(Use "Attach files" to upload a PDF or JPEG image)
 

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