A study on the influences of immediate thermal history on current thermal sensation

Abstract Previous thermal history usually influences current thermal sensation and thermal comfort. In reality, people can adjust their clothes, activities, and other factors to achieve a relatively comfortable state, which is different to a study in a controlled chamber. The purpose of this study is to explore the regularity of thermal history on human thermal sensation in the real scenario. We recruited 56 university students and asked them to carry a portable instrument that could automatically record the temperature and relative humidity wherever they went. At the same time, they were instructed to complete a questionnaire whenever they transformed the sites or had some abrupt changes in thermal feelings. The results showed that the acceptable temperature range was wider, and the influence of a cold experience was more significant on thermal perception. A new index was proposed which was used to describe the synthetic effect of the previous temperature change at any time scale. In addition, the influences of the activity type and the clothing insulation changes were discussed. A thermal history map of the university was presented to illustrate the behavioural characteristics of the students. These findings are meaningful for further studies on short-term thermal history and related human behaviours.

[1]  Yang Geng,et al.  The impact of thermal environment on occupant IEQ perception and productivity , 2017 .

[2]  M. Holmes,et al.  Climate change, thermal comfort and energy: Meeting the design challenges of the 21st century , 2007 .

[3]  Gail Brager,et al.  The adaptive model of thermal comfort and energy conservation in the built environment. , 2001 .

[4]  Baizhan Li,et al.  The response of human thermal perception and skin temperature to step-change transient thermal environments , 2014 .

[5]  Zhaojun Wang,et al.  Adaptive thermal comfort in university dormitories in the severe cold area of China , 2016 .

[6]  Yufeng Zhang,et al.  Thermal comfort of people in the hot and humid area of China-impacts of season, climate, and thermal history. , 2016, Indoor air.

[7]  Shichao Liu.  Personal thermal comfort models based on physiological parameters measured by wearable sensors , 2018 .

[8]  J. F. Nicol,et al.  The validity of ISO-PMV for predicting comfort votes in every-day thermal environments , 2002 .

[9]  Hui Zhang,et al.  EXTENDING AIR TEMPERATURE SETPOINTS: SIMULATED ENERGY SAVINGS AND DESIGN CONSIDERATIONS FOR NEW AND RETROFIT BUILDINGS , 2015 .

[10]  Takashi Akimoto,et al.  Thermal comfort and productivity - Evaluation of workplace environment in a task conditioned office , 2010 .

[11]  Myoung Souk Yeo,et al.  Effect of MRT variation on the energy consumption in a PMV-controlled office , 2010 .

[12]  Christhina Cândido,et al.  Thermal history and comfort in a Brazilian subtropical climate: a ‘cool’ addiction hypothesis , 2016 .

[13]  Karen Bickerstaff,et al.  Thermal comfort practices in the home and their impact on energy consumption , 2014 .

[14]  M. Santamouris,et al.  Evaluating thermal comfort conditions and health responses during an extremely hot summer in Athens , 2011 .

[15]  Robert Sausen,et al.  The Köppen climate classification as a diagnostic tool for general circulation models , 1993 .

[16]  Madhavi Indraganti,et al.  Behavioural adaptation and the use of environmental controls in summer for thermal comfort in apartments in India , 2010 .

[17]  Bin Cao,et al.  Influence of short-term thermal experience on thermal comfort evaluations: A climate chamber experiment , 2017 .

[18]  A. Melikov,et al.  Design of an individually controlled system for an optimal thermal microenvironment , 2010 .

[19]  Liu Yang,et al.  Thermal comfort and building energy consumption implications - A review , 2014 .

[20]  Z. Lian,et al.  Effects of exposure to winter temperature step-changes on human subjective perceptions , 2016 .

[21]  P. Fanger,et al.  Extension of the PMV model to non-air-conditioned buildings in warm climates , 2002 .

[22]  R. Andersen,et al.  Occupant performance and building energy consumption with different philosophies of determining acceptable thermal conditions , 2009 .

[23]  Edward Arens,et al.  Indoor Environmental Quality ( IEQ ) Title Are ' Class A ' temperature requirements realistic or desirable ? , 2009 .

[24]  Ken Parsons,et al.  Human Thermal Environments: The Effects of Hot, Moderate, and Cold Environments on Human Health, Comfort and Performance , 1999 .

[25]  José A. Orosa,et al.  A new thermal comfort approach comparing adaptive and PMV models , 2011 .

[26]  W. Cui,et al.  People who live in a cold climate: thermal adaptation differences based on availability of heating. , 2013, Indoor air.

[27]  Y Zhu,et al.  Progress in thermal comfort research over the last twenty years. , 2013, Indoor air.

[28]  Q. Ouyang,et al.  Field study of human thermal comfort and thermal adaptability during the summer and winter in Beijing , 2011 .

[29]  Yi Wang,et al.  Comparative analysis of modified PMV models and SET models to predict human thermal sensation in naturally ventilated buildings , 2015 .

[30]  R. Dear,et al.  Thermal adaptation in the built environment: a literature review , 1998 .

[31]  J. Stuart Hunter,et al.  The exponentially weighted moving average , 1986 .

[32]  Maohui Luo,et al.  Indoor climate experience, migration, and thermal comfort expectation in buildings , 2018, Building and Environment.

[33]  P. Fanger.  Calculation of Thermal Comfort, Introduction of a Basic Comfort Equation , 1967 .

[34]  P. O. Fanger,et al.  Thermal comfort: analysis and applications in environmental engineering, , 1972 .

[35]  Bjarne W. Olesen,et al.  A methodology for modelling energy-related human behaviour: Application to window opening behaviour in residential buildings , 2013 .

[36]  Byron W. Jones.  Capabilities and limitations of thermal models for use in thermal comfort standards , 2002 .

[37]  Gail Brager,et al.  Developing an adaptive model of thermal comfort and preference , 1998 .

[38]  Borong Lin,et al.  Study on human skin temperature and thermal evaluation in step change conditions: From non-neutrality to neutrality , 2017 .