Micro-environmental control for efficient local heating: CFD simulation and manikin test verification

Kong, Meng; Dang, Thong Q.; Zhang, Jianshun; Khalifa, H. Ezzat

doi:10.1016/j.buildenv.2018.10.018

Title: Micro-environmental control for efficient local heating: CFD simulation and manikin test verification

Abstract

Micro-environment control system has been proved to be able to provide local thermal comfort control. It also has the potential to save building energy by relaxing the control on the unoccupied space. This work aims at designing an efficient heating delivering device (HDD) to locally warm the person to restore thermal comfort when the unoccupied space temperature is reduced from 70.0 °F to 66.0 °F to save the energy. A three-stage approach was developed for designing the HDD including the initial stage of developing by CFD simulation, the second stage of manikin test verification and final stage of human subject test confirmation. The results of the first two stages were presented and discussed in this work. It was shown that convective heating was not efficient enough unless a confinement box was used to hold the hot air around the legs and feet. A more ergonomically friendly design of using a foot warmer was finally proved to be a better solution for individually heating by both simulation and experiments since it can heat the occupant sufficiently. The ability of using CFD to predict heat loss from the clothed human body and its limitation was also investigated. It was found that withmore »« less

Authors:

Kong, Meng ^[1]; Dang, Thong Q. ^[1]; Zhang, Jianshun ^[1]; Khalifa, H. Ezzat ^[1]

Syracuse Univ., Syracuse, NY (United States)

Publication Date:: Wed Oct 10 00:00:00 EDT 2018

Research Org.:: Syracuse Univ., NY (United States)

Sponsoring Org.:: USDOE Advanced Research Projects Agency - Energy (ARPA-E)

OSTI Identifier:: 1479100

Alternate Identifier(s):: OSTI ID: 1636842

Grant/Contract Number:: AR0000526

Resource Type:: Accepted Manuscript

Journal Name:: Building and Environment

Additional Journal Information:: Journal Volume: 147; Journal Issue: C; Journal ID: ISSN 0360-1323

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING; Micro-environment; Thermal comfort; CFD; Local heating; Clothing

Citation Formats


                    Kong, Meng, Dang, Thong Q., Zhang, Jianshun, and Khalifa, H. Ezzat. Micro-environmental control for efficient local heating: CFD simulation and manikin test verification.  United States: N. p., 2018. 
Web.  doi:10.1016/j.buildenv.2018.10.018.

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                    Kong, Meng, Dang, Thong Q., Zhang, Jianshun, & Khalifa, H. Ezzat. Micro-environmental control for efficient local heating: CFD simulation and manikin test verification.  United States.  https://doi.org/10.1016/j.buildenv.2018.10.018

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                    Kong, Meng, Dang, Thong Q., Zhang, Jianshun, and Khalifa, H. Ezzat. Wed .  
"Micro-environmental control for efficient local heating: CFD simulation and manikin test verification".  United States.  https://doi.org/10.1016/j.buildenv.2018.10.018.  https://www.osti.gov/servlets/purl/1479100.

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@article{osti_1479100,

  title        = {Micro-environmental control for efficient local heating: CFD simulation and manikin test verification},

  author       = {Kong, Meng and Dang, Thong Q. and Zhang, Jianshun and Khalifa, H. Ezzat},

  abstractNote = {Micro-environment control system has been proved to be able to provide local thermal comfort control. It also has the potential to save building energy by relaxing the control on the unoccupied space. This work aims at designing an efficient heating delivering device (HDD) to locally warm the person to restore thermal comfort when the unoccupied space temperature is reduced from 70.0 °F to 66.0 °F to save the energy. A three-stage approach was developed for designing the HDD including the initial stage of developing by CFD simulation, the second stage of manikin test verification and final stage of human subject test confirmation. The results of the first two stages were presented and discussed in this work. It was shown that convective heating was not efficient enough unless a confinement box was used to hold the hot air around the legs and feet. A more ergonomically friendly design of using a foot warmer was finally proved to be a better solution for individually heating by both simulation and experiments since it can heat the occupant sufficiently. The ability of using CFD to predict heat loss from the clothed human body and its limitation was also investigated. It was found that with proper clothing insulation, the CFD can give a reasonable prediction, although simulating the clothing as a layer of certain thermal resistance might be problematic regarding the structure and permeability of the clothing material. In conclusion, a more appropriate method for simulating the clothing was needed for better prediction in the future.},

  doi          = {10.1016/j.buildenv.2018.10.018},

  journal      = {Building and Environment},

  number       = C,

  volume       = 147,

  place        = {United States},

  year         = {Wed Oct 10 00:00:00 EDT 2018},

  month        = {Wed Oct 10 00:00:00 EDT 2018}

}

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https://doi.org/10.1016/j.buildenv.2018.10.018

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Cited by: 20 works

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Works referenced in this record:

Personal heating: effectiveness and energy use
journal, January 2015

Verhaart, Jacob; Veselý, Michal; Zeiler, Wim
Building Research & Information, Vol. 43, Issue 3
DOI: 10.1080/09613218.2015.1001606

Human Response to an Individually Controlled Microenvironment
journal, July 2007

Melikov, A. K.; Knudsen, G. L.
HVAC&R Research, Vol. 13, Issue 4
DOI: 10.1080/10789669.2007.10390977

A review of the corrective power of personal comfort systems in non-neutral ambient environments
journal, September 2015

Zhang, Hui; Arens, Edward; Zhai, Yongchao
Building and Environment, Vol. 91
DOI: 10.1016/j.buildenv.2015.03.013

Extending air temperature setpoints: Simulated energy savings and design considerations for new and retrofit buildings
journal, June 2015

Hoyt, Tyler; Arens, Edward; Zhang, Hui
Building and Environment, Vol. 88
DOI: 10.1016/j.buildenv.2014.09.010

Progress in thermal comfort research over the last twenty years
journal, May 2013

de Dear, R. J.; Akimoto, T.; Arens, E. A.
Indoor Air, Vol. 23, Issue 6
DOI: 10.1111/ina.12046

Computational analysis of reduced-mixing personal ventilation jets
journal, August 2009

Russo, Jackie S.; Dang, Thong Q.; Khalifa, H. Ezzat
Building and Environment, Vol. 44, Issue 8
DOI: 10.1016/j.buildenv.2008.11.005

CFD assessment of intake fraction in the indoor environment
journal, September 2010

Russo, Jackie S.; Ezzat Khalifa, H.
Building and Environment, Vol. 45, Issue 9
DOI: 10.1016/j.buildenv.2010.01.017

CFD Analysis of Personal Ventilation with Volumetric Chemical Reactions
journal, November 2010

Russo, Jackie; Khalifa, H. Ezzat
HVAC&R Research, Vol. 16, Issue 6
DOI: 10.1080/10789669.2010.10390935

Experimental investigation of reduced-mixing personal ventilation jets
journal, August 2009

Khalifa, H. Ezzat; Janos, Michael I.; Dannenhoffer, John F.
Building and Environment, Vol. 44, Issue 8
DOI: 10.1016/j.buildenv.2008.11.006

A study of occupant cooling by personally controlled air movement
journal, February 1998

Arens, Edward; Xu, Tengfang; Miura, Katsuhiro
Energy and Buildings, Vol. 27, Issue 1
DOI: 10.1016/S0378-7788(97)00025-X

Effect of warm air supplied facially on occupants’ comfort
journal, April 2010

Kaczmarczyk, J.; Melikov, A.; Sliva, D.
Building and Environment, Vol. 45, Issue 4
DOI: 10.1016/j.buildenv.2009.09.005

Advanced air distribution: improving health and comfort while reducing energy use
journal, April 2015

Melikov, A. K.
Indoor Air, Vol. 26, Issue 1
DOI: 10.1111/ina.12206

Human Response to Five Designs of Personalized Ventilation
journal, April 2006

Kaczmarczyk, J.; Melikov, A.; Bolashikov, Z.
HVAC&R Research, Vol. 12, Issue 2
DOI: 10.1080/10789669.2006.10391184

Air and air contaminant flows in office cubicles with and without personal ventilation: A CFD modeling and simulation study
journal, March 2015

Kong, Meng; Zhang, Jianshun; Wang, Jingjing
Building Simulation, Vol. 8, Issue 4
DOI: 10.1007/s12273-015-0219-6

Personal Exposure Between People in a Room Ventilated by Textile Terminals—with and without Personalized Ventilation
journal, July 2007

Nielsen, Peter; Hyldgaard, Carl Erik; Melikov, Arsen
HVAC&R Research, Vol. 13, Issue 4
DOI: 10.1080/10789669.2007.10390976

Human response to personalized ventilation and mixing ventilation
journal, December 2004

Kaczmarczyk, J.; Melikov, A.; Fanger, P. O.
Indoor Air, Vol. 14, Issue s8
DOI: 10.1111/j.1600-0668.2004.00300.x

Personalized ventilation
journal, August 2004

Melikov, A. K.
Indoor Air, Vol. 14, Issue s7
DOI: 10.1111/j.1600-0668.2004.00284.x

Using footwarmers in offices for thermal comfort and energy savings
journal, October 2015

Zhang, Hui; Arens, Edward; Taub, Mallory
Energy and Buildings, Vol. 104
DOI: 10.1016/j.enbuild.2015.06.086

Energy-efficient comfort with a heated/cooled chair: Results from human subject tests
journal, January 2015

Pasut, Wilmer; Zhang, Hui; Arens, Ed
Building and Environment, Vol. 84
DOI: 10.1016/j.buildenv.2014.10.026

Thermal Response of Different Body Parts: The Fingertip as Control Sensor for Personalized Heating
journal, November 2015

Zeiler, Wim; Vesely, Michal; Vissers, Derek
Energy Procedia, Vol. 78
DOI: 10.1016/j.egypro.2015.11.622

Partial- and whole-body thermal sensation and comfort—Part II: Non-uniform environmental conditions
journal, January 2006

Arens, Edward; Zhang, Hui; Huizenga, Charlie
Journal of Thermal Biology, Vol. 31, Issue 1-2
DOI: 10.1016/j.jtherbio.2005.11.027

Micro-environmental control for efficient local cooling
journal, June 2017

Kong, Meng; Dang, Thong Q.; Zhang, Jianshun
Building and Environment, Vol. 118
DOI: 10.1016/j.buildenv.2017.03.040

Thermal comfort models: A review and numerical investigation
journal, January 2012

Cheng, Yuanda; Niu, Jianlei; Gao, Naiping
Building and Environment, Vol. 47
DOI: 10.1016/j.buildenv.2011.05.011

Literature review on thermal comfort in transient conditions
journal, January 1990

Hensen, J. L. M.
Building and Environment, Vol. 25, Issue 4
DOI: 10.1016/0360-1323(90)90004-B

Maximum temperatures in European office buildings to avoid heat discomfort
journal, March 2007

Nicol, Fergus; Humphreys, Michael
Solar Energy, Vol. 81, Issue 3
DOI: 10.1016/j.solener.2006.07.007

Thermal comfort models for indoor spaces and vehicles—Current capabilities and future perspectives
journal, April 2015

Croitoru, Cristiana; Nastase, Ilinca; Bode, Florin
Renewable and Sustainable Energy Reviews, Vol. 44
DOI: 10.1016/j.rser.2014.10.105

Thermal sensation and comfort models for non-uniform and transient environments, part III: Whole-body sensation and comfort
journal, February 2010

Zhang, Hui; Arens, Edward; Huizenga, Charlie
Building and Environment, Vol. 45, Issue 2
DOI: 10.1016/j.buildenv.2009.06.020

Thermal sensation and comfort models for non-uniform and transient environments: Part I: Local sensation of individual body parts
journal, February 2010

Zhang, Hui; Arens, Edward; Huizenga, Charlie
Building and Environment, Vol. 45, Issue 2, p. 380-388
DOI: 10.1016/j.buildenv.2009.06.018

Thermal sensation and comfort models for non-uniform and transient environments, part II: Local comfort of individual body parts
journal, February 2010

Zhang, Hui; Arens, Edward; Huizenga, Charlie
Building and Environment, Vol. 45, Issue 2, p. 389-398
DOI: 10.1016/j.buildenv.2009.06.015

Thermal comfort evaluation with virtual manikin methods
journal, December 2007

Nilsson, Håkan O.
Building and Environment, Vol. 42, Issue 12
DOI: 10.1016/j.buildenv.2006.04.027

A two-dimensional model for calculating heat transfer in the human body in a transient and non-uniform thermal environment
journal, April 2016

Lai, Dayi; Chen, Qingyan
Energy and Buildings, Vol. 118
DOI: 10.1016/j.enbuild.2016.02.051

Works referencing / citing this record:

Climate-induced thermoregulatory responses in a non-linear thermal environment: investigating the inter-dependencies using a facile artificial neural network-based predictive strategy
journal, March 2020

Dasgupta, Jhilly; Nag, Pranab Kumar
International Journal of Occupational Safety and Ergonomics
DOI: 10.1080/10803548.2019.1684640

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Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.

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Similar Records

Title: Micro-environmental control for efficient local heating: CFD simulation and manikin test verification

Abstract

Citation Formats

Figures / Tables:

Personal heating: effectiveness and energy use journal, January 2015

Human Response to an Individually Controlled Microenvironment journal, July 2007

A review of the corrective power of personal comfort systems in non-neutral ambient environments journal, September 2015

Extending air temperature setpoints: Simulated energy savings and design considerations for new and retrofit buildings journal, June 2015

Progress in thermal comfort research over the last twenty years journal, May 2013

Computational analysis of reduced-mixing personal ventilation jets journal, August 2009

CFD assessment of intake fraction in the indoor environment journal, September 2010

CFD Analysis of Personal Ventilation with Volumetric Chemical Reactions journal, November 2010

Experimental investigation of reduced-mixing personal ventilation jets journal, August 2009

A study of occupant cooling by personally controlled air movement journal, February 1998

Effect of warm air supplied facially on occupants’ comfort journal, April 2010

Advanced air distribution: improving health and comfort while reducing energy use journal, April 2015

Human Response to Five Designs of Personalized Ventilation journal, April 2006

Air and air contaminant flows in office cubicles with and without personal ventilation: A CFD modeling and simulation study journal, March 2015

Personal Exposure Between People in a Room Ventilated by Textile Terminals—with and without Personalized Ventilation journal, July 2007

Human response to personalized ventilation and mixing ventilation journal, December 2004

Personalized ventilation journal, August 2004

Using footwarmers in offices for thermal comfort and energy savings journal, October 2015

Energy-efficient comfort with a heated/cooled chair: Results from human subject tests journal, January 2015

Thermal Response of Different Body Parts: The Fingertip as Control Sensor for Personalized Heating journal, November 2015

Partial- and whole-body thermal sensation and comfort—Part II: Non-uniform environmental conditions journal, January 2006

Micro-environmental control for efficient local cooling journal, June 2017

Thermal comfort models: A review and numerical investigation journal, January 2012

Literature review on thermal comfort in transient conditions journal, January 1990

Maximum temperatures in European office buildings to avoid heat discomfort journal, March 2007

Thermal comfort models for indoor spaces and vehicles—Current capabilities and future perspectives journal, April 2015

Thermal sensation and comfort models for non-uniform and transient environments, part III: Whole-body sensation and comfort journal, February 2010

Thermal sensation and comfort models for non-uniform and transient environments: Part I: Local sensation of individual body parts journal, February 2010

Thermal sensation and comfort models for non-uniform and transient environments, part II: Local comfort of individual body parts journal, February 2010

Thermal comfort evaluation with virtual manikin methods journal, December 2007

A two-dimensional model for calculating heat transfer in the human body in a transient and non-uniform thermal environment journal, April 2016

Climate-induced thermoregulatory responses in a non-linear thermal environment: investigating the inter-dependencies using a facile artificial neural network-based predictive strategy journal, March 2020

Personal heating: effectiveness and energy use
journal, January 2015

Human Response to an Individually Controlled Microenvironment
journal, July 2007

A review of the corrective power of personal comfort systems in non-neutral ambient environments
journal, September 2015

Extending air temperature setpoints: Simulated energy savings and design considerations for new and retrofit buildings
journal, June 2015

Progress in thermal comfort research over the last twenty years
journal, May 2013

Computational analysis of reduced-mixing personal ventilation jets
journal, August 2009

CFD assessment of intake fraction in the indoor environment
journal, September 2010

CFD Analysis of Personal Ventilation with Volumetric Chemical Reactions
journal, November 2010

Experimental investigation of reduced-mixing personal ventilation jets
journal, August 2009

A study of occupant cooling by personally controlled air movement
journal, February 1998

Effect of warm air supplied facially on occupants’ comfort
journal, April 2010

Advanced air distribution: improving health and comfort while reducing energy use
journal, April 2015

Human Response to Five Designs of Personalized Ventilation
journal, April 2006

Air and air contaminant flows in office cubicles with and without personal ventilation: A CFD modeling and simulation study
journal, March 2015

Personal Exposure Between People in a Room Ventilated by Textile Terminals—with and without Personalized Ventilation
journal, July 2007

Human response to personalized ventilation and mixing ventilation
journal, December 2004

Personalized ventilation
journal, August 2004

Using footwarmers in offices for thermal comfort and energy savings
journal, October 2015

Energy-efficient comfort with a heated/cooled chair: Results from human subject tests
journal, January 2015

Thermal Response of Different Body Parts: The Fingertip as Control Sensor for Personalized Heating
journal, November 2015

Partial- and whole-body thermal sensation and comfort—Part II: Non-uniform environmental conditions
journal, January 2006

Micro-environmental control for efficient local cooling
journal, June 2017

Thermal comfort models: A review and numerical investigation
journal, January 2012

Literature review on thermal comfort in transient conditions
journal, January 1990

Maximum temperatures in European office buildings to avoid heat discomfort
journal, March 2007

Thermal comfort models for indoor spaces and vehicles—Current capabilities and future perspectives
journal, April 2015

Thermal sensation and comfort models for non-uniform and transient environments, part III: Whole-body sensation and comfort
journal, February 2010

Thermal sensation and comfort models for non-uniform and transient environments: Part I: Local sensation of individual body parts
journal, February 2010

Thermal sensation and comfort models for non-uniform and transient environments, part II: Local comfort of individual body parts
journal, February 2010

Thermal comfort evaluation with virtual manikin methods
journal, December 2007

A two-dimensional model for calculating heat transfer in the human body in a transient and non-uniform thermal environment
journal, April 2016

Climate-induced thermoregulatory responses in a non-linear thermal environment: investigating the inter-dependencies using a facile artificial neural network-based predictive strategy
journal, March 2020