How do you calculate discomfort index?
How do you calculate discomfort index?
The DI was calculated from Thom’s formula which is DI = T-(0.55-0.0055*RH) (T-14.5). The data for the calculation have been taken from the readings of air temperature and relative humidity throughout a calendar year (December 2010 to November 2011).
What is a comfortable heat index?
Depending on the season, the ideal house temperature for both comfort and efficiency is between 68 to 78 degrees Fahrenheit. In the summer, the recommended thermostat setting is 78 degrees F.
What is a heat stress index?
The heat stress index is defined as the relation of the amount of evaporation (or perspiration) required as related to the maximum ability of the average person to perspire (or evaporate fluids from the body in order to cool themselves).
What are the various comfort indices?
This paper presents a comparative study of the suitability of seven different thermal comfort indices, namely PMV, discomfort index, cooling power index, Humidex, WBGT, SET, and UTCI in assessing outdoor thermal comfort.
What is the meaning of discomfort index?
An index for measuring the discomfort felt in warm weather as a result of the combined effects of the temperature and humidity of the air. 2Economics. An informal measure of the state of an economy obtained from the sum of the rate of inflation and the unemployment statistics.
What US city has the highest comfort index?
10. Austin, TX
| Rank | City | Summer Comfort Index |
|---|---|---|
| 1 | Honolulu | 8.2 |
| 2 | Los Angeles-Long Beach-Anaheim | 8.1 |
| 3 | San Diego-Carlsbad | 8.0 |
| 4 | San Jose-Sunnyvale-Santa Clara | 7.8 |
What is the highest heat index ever recorded?
Heat Index Charts and Wheels The highest dew point ever recorded, 95°F (35°C), was recorded at Dhahran, Saudi Arabia, on July 8, 2003. With an air temperature of 108°F (42°C) the heat index was 178°F (81°C).
What is the range of temperature of comfort zone in comfort discomfort diagram?
Humans generally feel comfortable between temperatures of 22 °C to 27 °C and a relative humidity of 40% to 60%. first cool the air to 14 °C (this removes some of the water from the air), and then heat the air to 24 °C.
What wet bulb temperature is uncomfortable?
Thus, if the dry-bulb temperature is 90° F (32° C) and the wet-bulb temperature is 50° F (10° C), the discomfort index is 15 + 0.4 (140), or 71. Most people are quite comfortable when the index is below 70 and very uncomfortable when the index is above 80 to 85.