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Human Heat Gain

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The table below indicates human sensible and latent heat. The values can be used to calculate heat loads that need to be handled by air conditioning systems.

Human Heat Gain
Typical ApplicationSensible Heat

Latent Heat

Theater-Matinee, Auditorium, 200 130
Theater-Evening, School 215 135
Offices, Hotels, Apartments 215 185
Retail & Department Stores 220 230
Drug Store 220 280
Bank 220 280
Restaurant 240 310
Factory - light work 240 510
Dance Hall 270 580
Factory - moderate work 330 670
Bowling Alley 510 940
Factory - heavy work, Gymnasium 510 940
  • Tabulated values are based on 78oF (25.6oC) for dry-bulb temperature
  • Adjusted total heat value for sedentary work, restaurant, includes 60 Btu/hr (18 W) for food per individual (30 Btu/h (9 W) sensible and 30 Btu/h (9 W) latent heat).
  • For bowling figure one person per alley actually bowling, and all others as sitting (400 Btu/h(118 W) or standing (550 Btu/h) (161 W)
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Related Topics

Air Conditioning

Air Conditioning systems - heating, cooling and dehumidification of indoor air for thermal comfort.

Air Psychrometrics

Moist and humid air - psychrometric charts, Mollier diagrams, air-condition temperatures and absolute and relative humidity and moisture content.


Human physiology, air quality and comfort temperatures, activity and metabolic rates, health effects of carbon monoxide and more.

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Latent and sensible cooling loads to consider when designing HVAC systems.

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Typical power consumption and running time for common electrical equipment.

Emissions from the Human Body

Gaseous polutants emissions from human bodies.

Heat Discomfort Zones

Maximum work load vs. temperature and relative humidity.

Heat Gain from Lights

Heat contributed by lights may have major impact on air-condition systems.

Heat Index

Equivalent heat index vs. air temperature and relative humidity - in degrees Fahrenheit and Celsius.

Heat Index vs. Humidity

The influence of humidity on the apparent temperature and the heat index.

Heat Loss from Electrical Equipment

Heat loss from electrical equipment like switch-gear, transformers and variable frequency drives.

Human Body - Specific Heat

Specific heat of the human body - compared to substances like protein and wood.

Human Body Composition

Composition of the human body.

Human Need of Air

Fresh air is required for respiration and for transport of heat and vapor emitted from the human body.

Humans - Required Rest Time

Relaxation rest time vs. working time and activity.

Indoor Temperature and Humidity Loads

Calculate sensible and latent heat from persons, lights, electric equipment, machines, evaporation from water surfaces, polluting fluids and miscellaneous loads.

Metabolic Heat Gain from Persons

Human metabolic heat gain in air conditioned rooms.

pH in Human Biological Material

pH in human materials like blood, salvia and more.

Physiology - Activity and Metabolic Rates

Heat production from the human body vs. activity.

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Room area per person - may be used to calculate typical indoor climate loads.

Room Sensible Heat Factor - RSHF

Room Sensible Heat Factor - RSHF - is defined as the sensible heat load divided by the total heat load in a room

Survival Time in Cold Water

Time to exhaustion and death for humans in cold water.

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