Sensible Cooling Load due to infiltrating air Calculator

✖Air Infiltration Rate into Room is the volumetric flow rate of outside air into a building/room.ⓘ Air Infiltration Rate into Room [CFM]			+10% -10%
✖Temperature change between outdoor and inside air is the temperature difference between air outdoor and inside of the specified space.ⓘ Temperature Change Between Outdoor and Inside Air [TC]			+10% -10%

✖Sensible Cooling Load is the heat added or removed from conditioned space by means of roof, ceiling, floor or windows.ⓘ Sensible Cooling Load due to infiltrating air [Q_ph]

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Formula

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Sensible Cooling Load due to infiltrating air

Formula

Q ph = 1.1 \cdot CFM \cdot TC

Example

2972.691 Btu/h = 1.1 \cdot 6400 ft³/min \cdot 12 °F

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Sensible Cooling Load due to infiltrating air Solution

STEP 0: Pre-Calculation Summary

Formula Used

Sensible Cooling Load = 1.1*Air Infiltration Rate into Room*Temperature Change Between Outdoor and Inside Air
Q_ph = 1.1*CFM*TC
This formula uses 3 Variables

Variables Used

Sensible Cooling Load - (Measured in Watt) - Sensible Cooling Load is the heat added or removed from conditioned space by means of roof, ceiling, floor or windows.
Air Infiltration Rate into Room - (Measured in Cubic Meter per Second) - Air Infiltration Rate into Room is the volumetric flow rate of outside air into a building/room.
Temperature Change Between Outdoor and Inside Air - (Measured in Kelvin) - Temperature change between outdoor and inside air is the temperature difference between air outdoor and inside of the specified space.

STEP 1: Convert Input(s) to Base Unit

Air Infiltration Rate into Room: 6400 Cubic Foot per Minute --> 3.02046363651624 Cubic Meter per Second (Check conversion here)
Temperature Change Between Outdoor and Inside Air: 12 Fahrenheit --> 262.038882255554 Kelvin (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Q_ph = 1.1*CFM*TC --> 1.1*3.02046363651624*262.038882255554

Evaluating ... ...

Q_ph = 870.626806726888

STEP 3: Convert Result to Output's Unit

870.626806726888 Watt -->2972.69076141014 Btu (th) per Hour (Check conversion here)

FINAL ANSWER

2972.69076141014 ≈ 2972.691 Btu (th) per Hour <-- Sensible Cooling Load

(Calculation completed in 00.004 seconds)

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Created by Rudrani Tidke

Cummins College of Engineering for Women (CCEW), Pune

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< Cooling Loads Calculators

Corrected Cooling Load Temperature Difference given Cooling Load Temperature Difference

Go Corrected Cooling Load Temperature Difference = Cooling Load Temperature Difference+Latitude Month Correction+(78-Room Temperature)+(Average Outside Temperature-85)

Cooling load for roof, wall or glass given Corrected Cooling Load Temperature Difference

Go Cooling Load = Overall Heat Transfer Coefficient*Area of Roof*Corrected Cooling Load Temperature Difference

Total heat removed from ventilation air

Go Total Heat Removed from Ventilation Air = Sensible Cooling Loads from Ventilation Air+Latent Cooling Loads from Ventilation Air

Average outside temperature on design day

Go Outside Temperature = Outside Design Dry Bulb Temperature-(Daily Temperature Range/2)

Sensible Cooling Load due to infiltrating air Formula

Sensible Cooling Load = 1.1*Air Infiltration Rate into Room*Temperature Change Between Outdoor and Inside Air
Q_ph = 1.1*CFM*TC

What does cooling load mean?

The cooling load is the amount of heat energy that would need to be removed from a space (cooling) to maintain the temperature in an acceptable range.

How to Calculate Sensible Cooling Load due to infiltrating air?

Sensible Cooling Load due to infiltrating air calculator uses Sensible Cooling Load = 1.1*Air Infiltration Rate into Room*Temperature Change Between Outdoor and Inside Air to calculate the Sensible Cooling Load, Sensible Cooling Load due to infiltrating air formula is defined as the amount of heat energy that needs to be removed from the air that infiltrates a building in order to maintain a comfortable indoor temperature, taking into account the air flow rate and temperature change. Sensible Cooling Load is denoted by Q_ph symbol.

How to calculate Sensible Cooling Load due to infiltrating air using this online calculator? To use this online calculator for Sensible Cooling Load due to infiltrating air, enter Air Infiltration Rate into Room (CFM) & Temperature Change Between Outdoor and Inside Air (TC) and hit the calculate button. Here is how the Sensible Cooling Load due to infiltrating air calculation can be explained with given input values -> 31.71885 = 1.1*3.02046363651624*262.038882255554.

FAQ

What is Sensible Cooling Load due to infiltrating air?

Sensible Cooling Load due to infiltrating air formula is defined as the amount of heat energy that needs to be removed from the air that infiltrates a building in order to maintain a comfortable indoor temperature, taking into account the air flow rate and temperature change and is represented as Q_ph = 1.1*CFM*TC or Sensible Cooling Load = 1.1*Air Infiltration Rate into Room*Temperature Change Between Outdoor and Inside Air. Air Infiltration Rate into Room is the volumetric flow rate of outside air into a building/room & Temperature change between outdoor and inside air is the temperature difference between air outdoor and inside of the specified space.

How to calculate Sensible Cooling Load due to infiltrating air?

Sensible Cooling Load due to infiltrating air formula is defined as the amount of heat energy that needs to be removed from the air that infiltrates a building in order to maintain a comfortable indoor temperature, taking into account the air flow rate and temperature change is calculated using Sensible Cooling Load = 1.1*Air Infiltration Rate into Room*Temperature Change Between Outdoor and Inside Air. To calculate Sensible Cooling Load due to infiltrating air, you need Air Infiltration Rate into Room (CFM) & Temperature Change Between Outdoor and Inside Air (TC). With our tool, you need to enter the respective value for Air Infiltration Rate into Room & Temperature Change Between Outdoor and Inside Air and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Sensible Cooling Load?

In this formula, Sensible Cooling Load uses Air Infiltration Rate into Room & Temperature Change Between Outdoor and Inside Air. We can use 1 other way(s) to calculate the same, which is/are as follows -

Sensible Cooling Load = Total Cooling Load/Latent Factor

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