Calculating how much heat must be added to increase temp

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SUMMARY

The discussion focuses on calculating the heat required to raise the temperature of 3.5 m³/s of moist air from a dry bulb temperature of 10°C with a relative humidity of 60% by 17°C. The calculations involve determining the specific heat capacity of moist air and the resulting relative humidity after heating. Additionally, the power required for the heating unit is a key consideration in this scenario. These calculations are essential for HVAC professionals and engineers working with thermal systems.

PREREQUISITES
  • Understanding of thermodynamics principles, specifically heat transfer.
  • Knowledge of psychrometrics, including dry bulb and wet bulb temperatures.
  • Familiarity with specific heat capacity calculations for moist air.
  • Basic proficiency in HVAC system design and power requirements.
NEXT STEPS
  • Research the psychrometric chart to analyze changes in air properties.
  • Learn about specific heat capacity of moist air and its calculation methods.
  • Investigate HVAC power requirements for heating units based on air flow rates.
  • Explore the effects of humidity on thermal comfort and energy efficiency.
USEFUL FOR

HVAC engineers, thermal system designers, and students studying thermodynamics and psychrometrics will benefit from this discussion.

john ryan
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Can anyone help me with this?

-How much heat must be added to 3.5 m3 /s of moist air with a dry bulb temperature of 10°C and a relative humidity of 60% to raise the temperature of the air by 17°C?

• What will be the relative humidity of the air once this heat is added?

• What is the power required in the heating unit?
 
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john ryan said:
Can anyone help me with this?

-How much heat must be added to 3.5 m3 /s of moist air with a dry bulb temperature of 10°C and a relative humidity of 60% to raise the temperature of the air by 17°C?

• What will be the relative humidity of the air once this heat is added?

• What is the power required in the heating unit?
Please re-post this in the homework help forum, follow the template and make an effort to try and solve it yourself. Thread locked.
 
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