0
Research Papers

Effects of Partition on Thermal Comfort, Indoor Air Quality, Energy Consumption, and Perception in Air-Conditioned Buildings

[+] Author and Article Information
Pradip Aryal

School of Manufacturing Systems and
Mechanical Engineering,
Sirindhorn International Institute of Technology,
Thammasat University,
P.O. Box 22, Thammasat Rangsit Post Office,
Pathum Thani 12121, Thailand
e-mail: prad.aryal@gmail.com

Thananchai Leephakpreeda

School of Manufacturing Systems and
Mechanical Engineering,
Sirindhorn International Institute of Technology,
Thammasat University,
P.O. Box 22, Thammasat Rangsit Post Office,
Pathum Thani 12121, Thailand
e-mail: thanan@siit.tu.ac.th

1Corresponding author.

Contributed by the Solar Energy Division of ASME for publication in the JOURNAL OF SOLAR ENERGY ENGINEERING: INCLUDING WIND ENERGY AND BUILDING ENERGY CONSERVATION. Manuscript received March 9, 2016; final manuscript received June 19, 2016; published online July 25, 2016. Assoc. Editor: Jorge E. Gonzalez.

J. Sol. Energy Eng 138(5), 051005 (Jul 25, 2016) (11 pages) Paper No: SOL-16-1122; doi: 10.1115/1.4034072 History: Received March 09, 2016; Revised June 19, 2016

This research is to assess effects of a partition on thermal comfort, indoor air quality (IAQ), energy consumption, and perception in an air-conditioned space via computational fluid dynamics (CFD) analysis. The variables of indoor air are numerically determined before/after installation/removal of a partition. Accordingly, predicted mean vote (PMV) of thermal comfort, carbon dioxide concentration, rate of energy consumption in making up air, and an overall perception index are proposed to quantify effects in a partitioned space. For a case study, a partition is used to tightly separate a study area from a rest area in a library during peak time. The CFD analysis is performed so that the mean differences between the measured and simulated variables at 14 locations are less than 5%. After partitioning in the CFD analysis, it is found that the average PMV value decreases to −1.4 in the rest area, and it remains at −0.7 in the study area where occupants perceive a slightly cool sensation. In the study area, the carbon dioxide concentration increases to 450–500 ppm, while the rate of energy consumption increases by 8.3%. From the overall perception index of 0.9, the occupants feel spacious in the partitioned areas. Therefore, installing the partition is encouraged with the recommendation that cooling supply can be reduced for energy savings. It is apparent that the proposed methodology yields quantitative indicators for decision making of installation/removal of partitions. The interior investigation of partitions in buildings can be performed before making real physical changes.

FIGURES IN THIS ARTICLE
<>
Copyright © 2016 by ASME
Your Session has timed out. Please sign back in to continue.

References

Woodcock, A. , and Custovic, A. , 1998, “ ABC of Allergies: Avoiding Exposure to Indoor Allergens,” BMJ, 316(7137), pp. 1075–1078. [CrossRef] [PubMed]
Henriott, J. M. , and Underwood, R. A. , 1994, “ Work Space Partition System,” U.S. Patent No. US5309686 A.
Chu, C. R. , Chiu, Y. H. , and Wang, Y.-W. , 2010, “ An Experimental Study of Wind-Driven Cross Ventilation in Partitioned Buildings,” Energy Build., 42(5), pp. 667–673. [CrossRef]
Cao, Q. , and He, X. G. , 1994, “ Cross-Ventilation and Room Partitions: Wind Tunnel Experiments on Indoor Airflow Distribution,” ASHRAE Trans., 100(2), pp. 208–219.
Lee, H. , and Awbi, H. B. , 2004, “ Effect of Internal Partitioning on Indoor Air Quality of Rooms With Mixing Ventilation—Basic Study,” Build. Environ., 39(2), pp. 127–141. [CrossRef]
Hall, E. , 1966, The Hidden Dimension: Man's Use of Space in Public and Private, Bodley Head, London.
Stamps, A. E. , 2008, “ On Shape and Spaciousness,” Environ. Behav., 41(4), pp. 526–548. [CrossRef]
Heidarinejad, G. , Fathollahzadeh, M. H. , and Pasdarshahri, H. , 2015, “ Effects of Return Air Vent Height on Energy Consumption, Thermal Comfort Conditions and Indoor Air Quality in an Under Floor Air Distribution System,” Energy Build., 97(15), pp. 155–161. [CrossRef]
Bojic, M. , Yik, F. , and Lo, T. , 2002, “ Locating Air-Conditioners and Furniture Inside Residential Flats to Obtain Good Thermal Comfort,” Energy Build., 34(7), pp. 745–751. [CrossRef]
Karimipanaha, T. , Awbib, H. B. , Sandbergc, M. , and Blomqvistc, C. , 2007, “ Investigation of Air Quality, Comfort Parameters and Effectiveness for Two Floor-Level Air Supply Systems in Classrooms,” Build. Environ., 42(2), pp. 647–655. [CrossRef]
Dassault Systèmes, 2013, “ Solidworks Flow Simulation Technical Reference,” Dassault Systèmes SolidWorks Corp., Waltham, MA.
Van Hoof, J. , Mazej, M. , and Hensen, J. L. , 2010, “ Thermal Comfort: Research and Practice,” Front. Biosci., 15(2), pp. 765–788. [CrossRef]
Teli, D. , Jentsch, M. F. , and James, P. A. , 2012, “ Naturally Ventilated Classrooms: An Assessment of Existing Comfort Models for Predicting the Thermal Sensation and Preference of Primary School Children,” Energy Build., 53, pp. 166–182. [CrossRef]
Fanger, P. O. , 1970, Thermal Comfort: Analysis and Applications in Environmental Engineering, Danish Technical Press, Copenhagen, Denmark.
ASHRAE, 2004, “ Thermal Environmental Conditions for Human Occupancy,” American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Inc., Atlanta, GA, Standard No. 55-2004.
Prill, R. , 2000, “ Why Measure Carbon Dioxide Inside Buildings?,” Washington State University, Pullman, WA.
Mendell, M. J. , and Heath, G. A. , 2005, “ Do Indoor Pollutants and Thermal Conditions in Schools Influence Student Performance? A Critical Review of the Literature,” Indoor Air, 15(1), pp. 27–52. [CrossRef] [PubMed]
Daisey, J. M. , Angell, W. J. , and Apte, M. G. , 2003, “ Indoor Air Quality, Ventilation and Health Symptoms in Schools: An Analysis of Existing Information,” Indoor Air, 13(1), pp. 53–64. [CrossRef] [PubMed]
ASHRAE, 1989, “ Ventilation for Acceptable Indoor Air Quality,” American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Inc., Atlanta, GA, Standard No. 62-1999.
ASHRAE, and U.G.B. Council, 2004, “ 62.1 User's Manual: ANSI/ASHRAE Standard 62.1-2004—Ventilation for Acceptable Indoor Air Quality,” American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Atlanta, GA.
Lorsch, H. G. , and Abdou, O. A. , 1994, “ The Impact of the Building Indoor Environment on Occupant Productivity—Part 1: Recent Studies, Measures, and Costs,” ASHRAE Trans., 100(2), pp. 741–749.
Frontczak, M. , Schiavon, S. , Goins, J. , Arens, E. , Zhang, H. , and Wargocki, P. , 2012, “ Quantitative Relationships Between Occupant Satisfaction and Satisfaction Aspects of Indoor Environmental Quality and Building Design,” Indoor Air, 22(2), pp. 119–131. [CrossRef] [PubMed]
Bharucha-Reid, R. , and Kiyak, H. A. , 1982, “ Environmental Effects on Affect: Density, Noise and Personality,” Popul. Environ., 5(1), pp. 60–72. [CrossRef]
Järvinen, E. J. , 1994, Space Perception, Encyclopædia Britannica, Chicago, IL.
Hall, E. T. , 1963, “ A System for the Notation of Proxemic Behavior,” Am. Anthropologist, 65(5), pp. 1003–1026. [CrossRef]

Figures

Grahic Jump Location
Fig. 1

Three-dimensional model of library space

Grahic Jump Location
Fig. 2

Locations of supply diffusers, extract grilles, measurement points, and occupants

Grahic Jump Location
Fig. 3

Making up indoor air of HVAC system

Grahic Jump Location
Fig. 4

Hall's personal space

Grahic Jump Location
Fig. 5

Perception index at various locations of partition: (a) Ip=1, (b) 0<Ip<1, and (c) Ip=0

Grahic Jump Location
Fig. 6

Perception index against distance of partition

Grahic Jump Location
Fig. 7

Comparisons of simulated results with measurement data: (a) air temperature, (b) relative humidity, (c) air velocity, and (d) carbon dioxide concentration

Grahic Jump Location
Fig. 8

Comparison of PMV distribution: (a) without partition and (b) with partition

Grahic Jump Location
Fig. 9

Comparison of carbon dioxide distribution: (a) without partition and (b) with partition

Grahic Jump Location
Fig. 10

Comparison of perception: (a) without partition and (b) with partition

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In