|Healthy Heating: Definition Of Mean Radiant Temperature|
Healthy Heating site explains that mean radiant temperature (MRT) is simply the area weighted mean temperature of all the objects surrounding the body. It will be positive when surrounding objects are warmer than the average skin temperature and negative when they are colder.
|IRC: Digest On Thermal Environment & Human Comfort|
Canadian Institute for Research in Construction digest on thermal environment and human comfort explains factors involved, reasons for dissatisfactions, and corrective measures that may be considered.
|RPA: Man's Early Attempts to Manage Comfort|
Radiant Professionals Alliance says mankind has attempted to control the mean radiant temperature known as MRT within the spaces that he has lived since the beginning of mankind. (PDF)
|IRC: Research Study On Thermal Comfort|
Canadian Institute for Research in Construction is simultaneously evaluating various thermal comfort parameters in two identical rooms in their Ventilation and Wall Research House, with the help of a new innovative tool they have developed.
|ASHRAE: Online Thermal Comfort Compliance Tool|
The new user manual for ANSI/ASHRAE Standard 55-2013, Thermal Environmental Conditions for Human Occupancy, includes a free online thermal comfort tool that can be used as the official tool for showing compliance with the standard.
|Australia Gov: Thermal Comfort Indices|
Australia government descibes how air temperature is only one factor in the assesment of thermal stress. In climates where other important factors, principally humidity, can vary widely from day to day, we need more than just the temperature for a more realistic assessment of comfort. The Wet Bulb Globe Temperature (WBGT) and the Apparent Temperature are indices which attempt to condense all the extra effects into a single number and use it in a similar way to the way we used the temperature.
|Berkeley Univ: Online Thermal Comfort Tool For ASHRAE-55|
Center for the Built Environment at University of California Berkeley online tool can be used for thermal comfort prediction according to ASHRAE Standard-55. It includes models for conventional building systems (predicted mean vote) and also for comfort using the adaptive comfort model, and with increased air speeds (for example, when using fans for cooling). It also provides new features such as visualization of comfort boundaries within the psychrometric chart.
|GBA: What Is Comfort?|
Green Building Advisor says as designers engage in an arms race to develop increasingly comfortable homes, green builders need to know when to say enough is enough.
|GBA: Why Is It So Cold In Here?|
Green Building Advisor discusses what happens when the furnace can put out plenty of heat, but the house feels cold unless the furnace is running.
|Healthy Heating: Post-Occupancy Thermal Comfort Surveys|
Healthy Heating describes surveys that relate specifically to the occupants, and are performed to develop an accurate representation of the environmental conditions perceived by the occupants against those criteria defined by standards.
|HPAC: Formulas For Success Using Mean Radiant Temperature|
HPAC magazine says if building codes dropped the reference to controlling air temperatures and switched the requirements to controlling mean radiant temperature, building performance specifications would have to change overnight and for the better.
|NREL: Variability In Measured Space Temperatures In 60 US Homes|
US National Renewable Energy Laboratory report Variability in Measured Space Temperatures In 60 US Homes discusses the measured variability in indoor space temperatures in a set of 60 homes located in Florida, New York, Oregon, and Washington. Temperature data were collected at 15-minute intervals for an entire year, including living room, master bedroom, and outdoor air temperature (Arena et al. 2010). The data were examined to establish the average living room temperatures for the heating and cooling seasons, the variability of living room temperatures depending on climate, and the variability of indoor space temperatures. (PDF)
|VTT: Human Thermal Model For Improved Thermal Comfort|
Human Thermal Model is a new technique developed by Senior Scientist Riikka Holopainen from VTT in her doctoral thesis, which can be used to design and create optimal indoor environments for low-energy buildings. One of the novelties of the method is the fact that it allows scientists to measure how different solutions are likely to affect human thermal comfort and the energy efficiency of buildings at the design stage. (PDF)