Search results
1 gru 2010 · The definition of thermal comfort leaves open as to what is meant by condition of mind or satisfaction, but it correctly emphasizes that the judgment of comfort is a cognitive process involving many inputs influenced by physical, physiological, psychological, and other factors [3].
Sensible heat is heat exchanged by a body or thermodynamic system in which the exchange of heat changes the temperature of the body or system, and some macroscopic variables of the body or system, but leaves unchanged certain other macroscopic variables of the body or system, such as volume or pressure. [1][2][3][4]
Wet-bulb temperature is an indicator of total heat (enthalpy), that is sensible heat plus latent heat. Dew-point temperature (DP) is the temperature of air at saturation, or the temperature to which air must be cooled before condensation of its moisture will begin.
Psychrometrics also involves the comfort level of the space relative to how a person feels. There is a balance between the dry temperature and humidity that we feel. This is known as the sensible load (dry temperature) and latent load (humid temperature).
Script Preview. This is the third lesson in the series on psychrometrics. Lesson 1.3 provides a review of energy, enthalpy, sensible and latent heat, and their importance in psychrometrics. Please note this is intended to be a review only of basic fundamentals. Energy and enthalpy are complex topics.
13 cze 2018 · Any vertical movement on the psych chart represents a change in latent heat (Figure 2). Conversely, any horizontal movement on the chart represents a change in sensible heat (Figure 3). Both of these changes in the heat content of the air can be measured on the enthalpy scale.
1 gru 2016 · MENEX (Man ENvironmental heat EXchange model) is a human heat balance model, from which on can derive the following bioclimatic indices: Subjective temperature (STI, °C), Physiological Strain (PhS, dimensionless), Physiological Subjective Temperature (PST, °C), Heat Load in man (HL, dimensionless), Water Loss (SW, g·h − ¹), Dehydration ...
