Sensible Heat Gain from people Calculator

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Latent Cooling Load and Heat Gain

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Sensible Cooling Loads

✖Sensible heat gains per person is Heat gain from persons in air conditioned spaces.ⓘ Sensible Heat Gains per person [q_s]			+10% -10%
✖Number of people is the count of people responsible for heat gain in space.ⓘ Number of people [n]			+10% -10%
✖Cooling load factor for people is used to represent the temperature difference between indoor and outdoor air with the inclusion of the heating effects of solar radiation.ⓘ Cooling Load Factor for people [CLF]			+10% -10%

✖Sensible Heat Gain from people is increase in heat per person for the degree or type of activity in the space.ⓘ Sensible Heat Gain from people [Q_S]

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Formula

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Sensible Heat Gain from people

Formula

`"Q"_{"S"} = "q"_{"s"}*"n"*"CLF"`

Example

`"6300Btu/h"="75Btu/h"*"70"*"1.2"`

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Sensible Heat Gain from people Solution

STEP 0: Pre-Calculation Summary

Formula Used

Sensible Heat Gain from people = Sensible Heat Gains per person*Number of people*Cooling Load Factor for people
Q_S = q_s*n*CLF
This formula uses 4 Variables

Variables Used

Sensible Heat Gain from people - (Measured in Watt) - Sensible Heat Gain from people is increase in heat per person for the degree or type of activity in the space.
Sensible Heat Gains per person - (Measured in Watt) - Sensible heat gains per person is Heat gain from persons in air conditioned spaces.
Number of people - Number of people is the count of people responsible for heat gain in space.
Cooling Load Factor for people - Cooling load factor for people is used to represent the temperature difference between indoor and outdoor air with the inclusion of the heating effects of solar radiation.

STEP 1: Convert Input(s) to Base Unit

Sensible Heat Gains per person: 75 Btu (th) per Hour --> 21.9656249994675 Watt (Check conversion here)
Number of people: 70 --> No Conversion Required
Cooling Load Factor for people: 1.2 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Q_S = q_s*n*CLF --> 21.9656249994675*70*1.2

Evaluating ... ...

Q_S = 1845.11249995527

STEP 3: Convert Result to Output's Unit

1845.11249995527 Watt -->6300 Btu (th) per Hour (Check conversion here)

FINAL ANSWER

6300 Btu (th) per Hour <-- Sensible Heat Gain from people

(Calculation completed in 00.020 seconds)

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Created by Rudrani Tidke

Cummins College of Engineering for Women (CCEW), Pune

Rudrani Tidke has created this Calculator and 100+ more calculators!

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National Institute Of Technology (NIT), Hamirpur

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< 9 Latent Cooling Load and Heat Gain Calculators

Latent cooling load from ventilation air

Go Latent cooling load from ventilation air in BTU/hr = 0.68*Air ventilation rate in Cubic foot per minute*(Outside Humidity Ratio-Inside humidity ratio)

Duct Heat Gain

Go Duct Heat Gain = Overall Heat Transfer Coefficient*Surface Area of Duct*Temperature change between Outdoor and Inside air

Heat Gain through Partition, Floor or Ceiling

Go Heat Gain = Heat Transfer Coefficient for Interior Structure*Surface Area of Duct*Cooling Load Temperature Difference

Sensible Heat Gain per people using Sensible Heat Gain from people

Go Sensible Heat Gains per person = Sensible Heat Gain from people/(Number of people*Cooling Load Factor for people)

Sensible Heat Gain from people

Go Sensible Heat Gain from people = Sensible Heat Gains per person*Number of people*Cooling Load Factor for people

Sensible Cooling Load Heat Gain through Structure

Go Sensible Cooling Load = Overall Heat Transfer Coefficient*Surface Area*Cooling Load Temperature Difference

Latent Heat Gain per person using Latent Heat Gain from people

Go Latent heat gains per person = Latent Heat Gain/Number of people

Latent Heat Gain from people

Go Latent Heat Gain = Latent heat gains per person*Number of people

Cooling load Heat Gain through windows

Go Sensible Cooling Load = Area of Glass*Glass Load Factor

Sensible Heat Gain from people Formula

Sensible Heat Gain from people = Sensible Heat Gains per person*Number of people*Cooling Load Factor for people
Q_S = q_s*n*CLF

How many Btus does a person use per hour?

When calculating the cooling load for a particular space, managers can use a rough estimate of 600 Btu per person.

How to Calculate Sensible Heat Gain from people?

Sensible Heat Gain from people calculator uses Sensible Heat Gain from people = Sensible Heat Gains per person*Number of people*Cooling Load Factor for people to calculate the Sensible Heat Gain from people, The Sensible Heat Gain from people formula is defined as increase in heat per person for the degree or type of activity in the space. Sensible Heat Gain from people is denoted by Q_S symbol.

How to calculate Sensible Heat Gain from people using this online calculator? To use this online calculator for Sensible Heat Gain from people, enter Sensible Heat Gains per person (q_s), Number of people (n) & Cooling Load Factor for people (CLF) and hit the calculate button. Here is how the Sensible Heat Gain from people calculation can be explained with given input values -> 21510.88 = 21.9656249994675*70*1.2.

FAQ

What is Sensible Heat Gain from people?

The Sensible Heat Gain from people formula is defined as increase in heat per person for the degree or type of activity in the space and is represented as Q_S = q_s*n*CLF or Sensible Heat Gain from people = Sensible Heat Gains per person*Number of people*Cooling Load Factor for people. Sensible heat gains per person is Heat gain from persons in air conditioned spaces, Number of people is the count of people responsible for heat gain in space & Cooling load factor for people is used to represent the temperature difference between indoor and outdoor air with the inclusion of the heating effects of solar radiation.

How to calculate Sensible Heat Gain from people?

The Sensible Heat Gain from people formula is defined as increase in heat per person for the degree or type of activity in the space is calculated using Sensible Heat Gain from people = Sensible Heat Gains per person*Number of people*Cooling Load Factor for people. To calculate Sensible Heat Gain from people, you need Sensible Heat Gains per person (q_s), Number of people (n) & Cooling Load Factor for people (CLF). With our tool, you need to enter the respective value for Sensible Heat Gains per person, Number of people & Cooling Load Factor for people and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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