A relation between calculated human body exergy consumption rate and subjectively assessed thermal sensation

Simone, Angela; Kolařík, Jakub; Iwamatsu, Toshiya; Asada, Hideo; Dovjak, Mateja; Schellen, L Lisje; Shukuya, Masanori; Olesen, Bjarne W.

doi:10.1016/j.enbuild.2010.08.007

Cited by 65 publications

(48 citation statements)

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“…Study by Simone et al [12] showed that the relationship between Ex-st (steady state human body exergy consumption model was used in the study) and TSV could be described by second order polynomial function (2):…”

Section: Analysis Of General Relationship Between Tsv and Human Body mentioning

confidence: 99%

“…The model (5) corresponded to the fixed effect from LME model, thus did not account for within subject variation. The model (6) represented approach of Simone et al [12]. Obtained models were compared with respect to estimated model parameters (intercept and slop), their 95% confidence intervals and variance explained -R 2 .…”

Section: Analysis Of General Relationship Between Tsv and Human Body mentioning

confidence: 99%

“…As Simone et al [12] did not have access to raw data, relationship described by equation (2) was derived using mean values of thermal sensation votes originating from four thermal comfort studies (see details in [12]). In the present study, second order polynomial function was fitted first to raw data from originating all three investigated studies.…”

Section: Analysis Of General Relationship Between Tsv and Human Body mentioning

confidence: 99%

“…… The relation between human-body exergy consumption rates (Ex-st) and subjectively assessed thermal sensation was analysed in the work of Simone et al [12]. The results showed that the minimum Ex-st was associated with Thermal Sensation Votes (TSV; "vote" in this context means a point of time when particular human subject filled out a thermal sensation scale during the exposure) close to thermal neutrality, tending to the slightly cool side of thermal sensation [12]. Such results suggest that when human body consumes the least of exergy, the human brain assesses thermal neutrality.…”

Section: Introductionmentioning

confidence: 99%

“…A next step in application of exergy analysis is the investigation of human body exergy balance under unsteady-state conditions [5]. Most of human body exergy analyses, mostly focused mainly on human body exergy consumption rate, have been made with the assumption of steady-state conditions of thermal environment [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22]. Human body exergy consumption rate determined for steady state thermal conditions will be further abbreviated Ex-st in the present paper.…”

Section: Introductionmentioning

confidence: 99%

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Unsteady-state human-body exergy consumption rate and its relation to subjective assessment of dynamic thermal environments

Schweiker

Kolařík

Dovjak

et al. 2016

Energy and Buildings

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Document Version Peer reviewed version Link back to DTU Orbit Citation (APA):Schweiker, M., Kolarik, J., Dovjak, M., & Shukuya, M. (2016). Unsteady-state human-body exergy consumption rate and its relation to subjective assessment of dynamic thermal environments. Energy and Buildings, 116, 164-180. DOI: 10.1016/j.enbuild.2016. ABSTRACTFew examples studied applicability of exergy analysis on human thermal comfort. These examples relate the human-body exergy consumption rate with subjectively obtained thermal sensation votes and had been based on steady-state calculation methods. However, humans are rarely exposed to steady-state thermal environments. Therefore, the first objective of the current paper was to compare a recently introduced unsteady-state model with previously used steady-state model using data obtained under both constant and transient temperature conditions. The second objective was to explore a relationship between the human-body exergy consumption rate and subjective assessment of thermal environment represented by thermal sensation as well as to extend the investigation towards thermal acceptability votes. Comparison of steady-state and unsteady-state model showed that results from both models were comparable when applied to data from environments with constant operative temperature. In contrast, when applied to data with temperature transients the prediction of particular models differed significantly and the unsteady-state model resulted in better prediction of mean skin temperature. The results of the present study confirmed previously indicated trends that lowest human body exergy consumption rate is associated with thermal sensation close to neutrality. Moreover, higher acceptability was in general associated with lower human body exergy consumption rate.

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Section: Analysis Of General Relationship Between Tsv and Human Body mentioning

confidence: 99%

Section: Analysis Of General Relationship Between Tsv and Human Body mentioning

confidence: 99%

Section: Analysis Of General Relationship Between Tsv and Human Body mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Unsteady-state human-body exergy consumption rate and its relation to subjective assessment of dynamic thermal environments

Schweiker

Kolařík

Dovjak

et al. 2016

Energy and Buildings

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Built-Environmental Systems

Shukuya¹

2012

Exergy

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Health Outcomes Related to Built Environments

Dovjak

Kukec

2019

Creating Healthy and Sustainable Buildings

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This chapter is dedicated to understanding the conceptual differences between healthy and unhealthy built environments (Sect. 2.1) as well as comfortable and uncomfortable conditions (Sect. 2.2) by using standardized professional terminology. In Sect. 2.3, the role of wellbeing in the sustainable building concepts is discussed and further addressed in the context of eco-friendly, green, and low-carbon buildings. The largest part of this chapter is devoted to various health effects related to exposure to health risk factors in the built environment (Sect. 2.4). In Sect. 2.5, health outcomes shown by reviewed epidemiological studies in Europe and worldwide are detailed. The chapter concludes with a determination of priority environments in public and residential buildings as well as vulnerable population groups (Sect. 2.6). 2.1 Healthy Versus Unhealthy Buildings Health is a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity (WHO 1946). The term health was defined by the World Health Organization (WHO) in 1946 and entered into force on 7 April 1948. The definition has not been amended since 1948 (WHO 1946). The definition of health has evolved. In 1948, in a radical departure from previous definitions, WHO proposed a definition that aimed higher: linking health to well-being, in terms of "physical, mental, and social well-being, and not merely the absence of disease and infirmity" (WHO 2005). Moreover, in 1986, WHO (1986) adopted a broad definition of health: "Health is a state of well-being and the capability to function in the face of changing circumstances." Currently, multiple definitions of health exist, from medical, sociological, psychological to physical definitions.

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A relation between calculated human body exergy consumption rate and subjectively assessed thermal sensation

Cited by 65 publications

References 5 publications

Unsteady-state human-body exergy consumption rate and its relation to subjective assessment of dynamic thermal environments

Unsteady-state human-body exergy consumption rate and its relation to subjective assessment of dynamic thermal environments

Built-Environmental Systems

Health Outcomes Related to Built Environments

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