1. What is an Air Temperature Rise Calculator?

Definition: This calculator estimates the temperature increase of air when heat energy is added, based on the heat input, air mass, and specific heat capacity.

Purpose: It helps engineers, HVAC professionals, and scientists determine how much air temperature will rise when heat is applied.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( \Delta T \) — Temperature rise (Kelvin)
• \( Q \) — Heat energy added (Joules)
• \( m \) — Mass of air (kilograms)
• \( c \) — Specific heat capacity (1005 J/kg·K for dry air)

Explanation: The heat energy is divided by the product of air mass and specific heat capacity to determine temperature increase.

3. Importance of Temperature Rise Calculation

Details: Accurate temperature prediction is crucial for HVAC system design, thermal management, and energy efficiency calculations.

4. Using the Calculator

Tips: Enter the heat energy in Joules, air mass in kilograms, and specific heat capacity (default 1005 J/kg·K for dry air). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's the specific heat capacity of moist air?
A: Moist air has slightly higher specific heat (about 1010-1030 J/kg·K) depending on humidity.

Q2: How do I convert the result to Celsius?
A: The temperature rise in Kelvin is numerically equal to Celsius (Δ1K = Δ1°C).

Q3: What's a typical air mass for room calculations?
A: For a 4m × 5m × 2.5m room, air mass ≈ 60kg (at 1.2kg/m³ density).

Q4: How do I find the heat energy from electrical equipment?
A: Electrical energy in watts × time in seconds = heat in joules (1W × 1s = 1J).

Q5: Does this account for heat losses?
A: No, this calculates ideal temperature rise without considering conduction, convection, or radiation losses.