TABLE OF CONTENTS Internal heat gains are due to people, lights, appliances, and processes. Heat gain from people is a function of the level of activity (see Table 3.4).
| Degree of activity | Typical application | Total heat for adults, male* | Total heat adjusted | Sensible heat | Latent heat |
|---|---|---|---|---|---|
| Seated at rest | Theater, movie | 390 | 330 | 225 | 105 |
| Seated, very light work writing | Offices, hotels, apartments | 450 | 400 | 245 | 155 |
| Seated, eating | Restaurant | 490 | 550 | 275 | 105 |
| Standing, light work or walking slowly | Retail store, bank | 550 | 450 | 250 | 200 |
| Light bench work | Factory | 200 | 750 | 330 | 420 |
| Walking, 3 mi/h, light machine work | Factory | 1000 | 1000 | 375 | 105 |
| Bowling | Bowling alley | 1500 | 1450 | 580 | 800 |
| Moderate dancing | Dance hall | 900 | 850 | 305 | 545 |
| Heavy work, heavy machine work, lifting | Factory | 1600 | 1600 | 635 | 965 |
| Heavy work, athletics | Gymnasium | 2000 | 1800 | 710 | 1090 |
| *Tabulated values are based on 78 F room dry-bulb temperature. For 80 F room dry-bulb temperature, the total heat remains the same, but the sensible heat value should be decreased by approximately 8% and the latent heat values increased accordingly. Adjusted total heat gain is based on normal percentage of women, men, and children for the application listed, with the postulate that the gain from an adult female is 85% of that for an adult male, and that the gain from a child is 75% of that for an... |
