Indoor Comfort Temperatures vs. Outdoor Temperatures
Recommended indoor comfort temperature versus outdoor dry-bulb temperatures are indicated below.
| Outside Dry-Bulb Temperature (oF) | Inside Temperature (oF) | |||
|---|---|---|---|---|
| Dry-Bulb | Wet-Bulb | Dew Point | Effective Temperature | |
| 100 | 82.5 | 69.0 | 62.3 | 76.0 |
| 90 | 79.5 | 66.5 | 59.5 | 73.6 |
| 80 | 76.7 | 64.0 | 56.6 | 71.3 |
| 70 | 74.0 | 62.0 | 54.5 | 69.0 |
Example - Recommended Indoor Temperature
With an outside dry bulb temperature of 30 oC, the diagram above indicates the the recommended inside dry bulb temperature should be approximately 26 oC and the recommended inside wet bulb temperature should be approximately 17 oC.
From the Mollier diagram this corresponds to relative humidity approximately 40% with humidity ratio - x - 0.0085 kgh2o/kgdry_air.
Related Topics
• Air Conditioning Systems
Design of Air Conditioning systems - heating, cooling and dehumidification of indoor air for thermal comfort.
• Air Psychrometrics
Moist and humid air calculations. Psychrometric charts and Mollier diagrams. Air-condition systems temperatures, absolute and relative humidities and moisture content in air.
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Indoor Relative Humidity vs. Outdoor Relative Humidity and Temperature
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