نتایج جستجو برای: human thermal comfort

تعداد نتایج: 1863040  

ژورنال: انرژی ایران 2018

The application of personalized ventilation systems, particularly in the buildings, is one of the new topics that today presented to it, because of their proper performance in reducing energy consumption and creating better thermal comfort conditions. In the current study, the energy consumption of a personalized cooling system installed in a room, considering the constraint of thermal comfort,...

The level of satisfaction with an environment differs among individuals, which may be caused by social, psychological and physical factors. One of the environmental factors affecting physical and mental satisfaction, is the thermal condition of space. In recent years, the importance of thermal comfort has been accentuated due to the climate change and global warming, increasing the number of st...

1999
C. O. R. Negrão C. O. Carvalho

In the present work, human thermal comfort is investigated within the built environment. The analysis is based on two building thermal simulation models. In the first one Nodal Network – the air condition (such as, air temperature and velocity) within each thermal zone is assumed uniform and therefore, all zone occupants are exposed to the same condition. In the second model – Nodal NetworkCFD ...

Journal: :Present Environment and Sustainable Development 2016

2011

Current existing thermal control systems are operated based on thermal comfort models generated by regression formulas averaging the thermal responses over data collected during extensive experiments involving panels of human subjects. These models may not be appropriate for an individual whose physiological characteristics happen to be located outside of the main stream from the experimental s...

Journal: :AORN journal 2006
Doreen Wagner Michelle Byrne Katharine Kolcaba

THERMAL COMFORT IS ONE DIMENSION of overall patient comfort, and it usually is addressed by covering the patient with warmed cotton blankets. WARMING HELPS A PATIENT maintain normothermia and appears to decrease patient anxiety. AN STUDY WAS CONDUCTED in a preoperative setting to compare the effects of preoperative warming with warmed cotton blankets versus patient-controlled warming gowns on p...

2005
H Zhang C Huizenga E Arens T Yu

Some HVAC systems save energy by creating stratified air temperature distributions in which the occupied lower regions are cooler and the upper regions warmer. Comfort standards prescribe a 3°C limit to vertical stratification, independent of where the mean temperature is relative to the comfort zone. This paper evaluates thermal comfort in stratified environments using a model developed to pre...

2016
Martino Colonna Matteo Moncalero Marco Nicotra Alessandro Pezzoli Elena Fabbri Lorenzo Bortolan Barbara Pellegrini Federico Schena

The choice of the appropriate material for the construction of ski-boot liners is of fundamental importance in order to achieve ergonomic comfort and high thermal insulation. In this work the effect on thermal comfort of different materials used for commercial ski-boot liners has been analysed. The thermal insulation and the moisture management of liners made of different materials have been te...

2015
Frederik Auffenberg Sebastian Stein Alex Rogers

We present a novel, personalised thermal comfort model and a heating agent using this model to reduce energy consumption with minimal comfort loss. At present, heating agents typically use simple models of user comfort when deciding on a set point temperature for the heating or cooling system. These models however generally fail to adapt to an individual user’s preferences, resulting in poor pe...

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