Thermal comfort and energy saving in a vehicle compartment using a localized air-conditioning system

Myoung Su Oh; Jae Hwan Ahn; Dong Woo Kim; Dong Soo Jang; Yongchan Kim

doi:10.1016/j.apenergy.2014.07.089

Thermal comfort and energy saving in a vehicle compartment using a localized air-conditioning system

Myoung Su Oh, Jae Hwan Ahn, Dong Woo Kim, Dong Soo Jang, Yongchan Kim

School of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

64 Citations (Scopus)

Abstract

A localized air-conditioning system is expected to decrease energy consumption by avoiding extra cooling on the vacant seats. However, the energy saving of the localized air-conditioning system with satisfactory thermal comfort has seldom been quantified. In this study, both thermal comfort in the vehicle compartment and energy saving of the localized air-conditioning system with the front and ceiling vents were investigated. Thermal comfort in the vehicle compartment with the front and ceiling vents was analyzed using computational fluid dynamics with empirical correlations for thermal indices. In addition, the performance of the air-conditioning unit was measured at various air flow rates and air temperatures. The energy consumption of the localized air-conditioning system with the optimized front and ceiling vents decreased by 20.8% and 30.2%, respectively, against the baseline, while satisfying the neutral thermal comfort at the vent air temperature of 9. °C.

Original language	English
Pages (from-to)	14-21
Number of pages	8
Journal	Applied Energy
Volume	133
DOIs	https://doi.org/10.1016/j.apenergy.2014.07.089
Publication status	Published - 2014 Nov 15

Keywords

Automobile
Energy saving
Localized air-conditioning
Thermal comfort

ASJC Scopus subject areas

Building and Construction
Mechanical Engineering
Energy(all)
Management, Monitoring, Policy and Law

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.apenergy.2014.07.089

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title = "Thermal comfort and energy saving in a vehicle compartment using a localized air-conditioning system",

abstract = "A localized air-conditioning system is expected to decrease energy consumption by avoiding extra cooling on the vacant seats. However, the energy saving of the localized air-conditioning system with satisfactory thermal comfort has seldom been quantified. In this study, both thermal comfort in the vehicle compartment and energy saving of the localized air-conditioning system with the front and ceiling vents were investigated. Thermal comfort in the vehicle compartment with the front and ceiling vents was analyzed using computational fluid dynamics with empirical correlations for thermal indices. In addition, the performance of the air-conditioning unit was measured at various air flow rates and air temperatures. The energy consumption of the localized air-conditioning system with the optimized front and ceiling vents decreased by 20.8% and 30.2%, respectively, against the baseline, while satisfying the neutral thermal comfort at the vent air temperature of 9. °C.",

keywords = "Automobile, Energy saving, Localized air-conditioning, Thermal comfort",

author = "Oh, {Myoung Su} and Ahn, {Jae Hwan} and Kim, {Dong Woo} and Jang, {Dong Soo} and Yongchan Kim",

note = "Funding Information: This research was supported by the Korean Evaluation Institute of Industrial Technology (No. 10035530) and the Human Resources Program in Energy Technology of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant with financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea (No. 20124010203250).",

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doi = "10.1016/j.apenergy.2014.07.089",

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AU - Oh, Myoung Su

AU - Ahn, Jae Hwan

AU - Kim, Dong Woo

AU - Jang, Dong Soo

AU - Kim, Yongchan

N1 - Funding Information: This research was supported by the Korean Evaluation Institute of Industrial Technology (No. 10035530) and the Human Resources Program in Energy Technology of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant with financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea (No. 20124010203250).

PY - 2014/11/15

Y1 - 2014/11/15

N2 - A localized air-conditioning system is expected to decrease energy consumption by avoiding extra cooling on the vacant seats. However, the energy saving of the localized air-conditioning system with satisfactory thermal comfort has seldom been quantified. In this study, both thermal comfort in the vehicle compartment and energy saving of the localized air-conditioning system with the front and ceiling vents were investigated. Thermal comfort in the vehicle compartment with the front and ceiling vents was analyzed using computational fluid dynamics with empirical correlations for thermal indices. In addition, the performance of the air-conditioning unit was measured at various air flow rates and air temperatures. The energy consumption of the localized air-conditioning system with the optimized front and ceiling vents decreased by 20.8% and 30.2%, respectively, against the baseline, while satisfying the neutral thermal comfort at the vent air temperature of 9. °C.

AB - A localized air-conditioning system is expected to decrease energy consumption by avoiding extra cooling on the vacant seats. However, the energy saving of the localized air-conditioning system with satisfactory thermal comfort has seldom been quantified. In this study, both thermal comfort in the vehicle compartment and energy saving of the localized air-conditioning system with the front and ceiling vents were investigated. Thermal comfort in the vehicle compartment with the front and ceiling vents was analyzed using computational fluid dynamics with empirical correlations for thermal indices. In addition, the performance of the air-conditioning unit was measured at various air flow rates and air temperatures. The energy consumption of the localized air-conditioning system with the optimized front and ceiling vents decreased by 20.8% and 30.2%, respectively, against the baseline, while satisfying the neutral thermal comfort at the vent air temperature of 9. °C.

KW - Automobile

KW - Energy saving

KW - Localized air-conditioning

KW - Thermal comfort

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U2 - 10.1016/j.apenergy.2014.07.089

DO - 10.1016/j.apenergy.2014.07.089

M3 - Article

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SN - 0306-2619

VL - 133

SP - 14

EP - 21

JO - Applied Energy

JF - Applied Energy

ER -

Thermal comfort and energy saving in a vehicle compartment using a localized air-conditioning system

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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