The total human radiation load as part of the human thermal energy balance is expressed by a single temperature known as the mean radiant temperature
According to ANSI/ASHRAE Standard 138, mean radiant temperature
can be calculated with Equation 7 in the standard test chamber (ANSI/ASHRAE 2013).
First, the measurements of air temperature, RH, air velocity, metabolic rate and mean radiant temperature
are converted into a standard voltage or current signal through signal conditioning and then sent into the integrated acquisition instrument.
The mean radiant temperature
is adopted for calculating the long wave radiation between interior wall surfaces, and a black-box model is used to predict the solar radiation on the envelope surfaces.
The operative temperature runs between the line for air temperature and mean radiant temperature
and is within the comfort range of 23[degrees]C to 26[degrees]C (73.
In all model cases it is interesting to observe the curves of the mean radiant temperature
of the inner wall surfaces.
The surface temperature of the ceiling, vertical air temperature, mean radiant temperature
, relative humidity, and air flow velocity were measured.
Evaluation criteria are wind speed, mean radiant temperature
, air temperature, humidity and the PMV value (Predicted Mean Vote), a thermal comfort index combining all indicators.
Evaluation was done by calculating the mean radiant temperature
, PMV index, the determination of metabolic rate and thermal insulation of workers clothing.
thermal comfort depends on air temperature and on mean radiant temperature
(combined into the operative temperature), while the control of the systems is usually carried out by air temperature (Olesen 2001,2002a; Simone 2009; Berglund and Berglund 1994);
The operative temperature is the average of the air temperature and the mean radiant temperature
of ail of the surfaces surrounding you," explains Peter Alspach, a voting committee member of ASHRAE SSPC 55 on Thermal Comfort and associate principal at Arup, an engineering consulting firm.
Since the thermal band of Landsat (Band 6) can show the surface radiant well and urban heat island is a result of surface radiant temperature
, so we can show increasing temperature by using these images.