Experimental Study of Energy Saving Potential in Mixing and Displacement Ventilation with Wireless Sensor Networks

Pei Zhou; Gongsheng Huang

doi:10.1016/j.proeng.2015.09.076

Experimental Study of Energy Saving Potential in Mixing and Displacement Ventilation with Wireless Sensor Networks

Pei Zhou^*
, Gongsheng Huang

^*Corresponding author for this work

Department of Architecture and Civil Engineering

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

4 Citations (Scopus)

64 Downloads (CityUHK Scholars)

Abstract

The objective of this study is to explore energy saving potential when wireless temperature sensor network is used in room temperature control when the room uses a mixing or displacement ventilation system. A typical classroom is selected for this study, inside which a number of wireless sensors will be installed at the breathing level to investigate the temperature profiles. By comparing with a traditional design of temperature control (i.e. temperature sensor is installed inside a return air duct), 22% (216m³/h) and 32% (205m³/h) of supply airflow rate can be saved in fully and half occupied conditions in the mixing ventilation without scarifying thermal comfort. In the displacement ventilation, even though there was no supply airflow rate saving in fully occupied condition, 15% (86m³/h) reduction in the supply airflow rate was achieved in half occupied condition. Therefore, the use of wireless temperature sensor network in a room temperature control may lead to a significant energy saving of the air-conditioning system.

Original language	English
Pages (from-to)	1497-1504
Journal	Procedia Engineering
Volume	121
DOIs	https://doi.org/10.1016/j.proeng.2015.09.076
Publication status	Published - 2015
Event	9th International Symposium on Heating, Ventilation and Air Conditioning, ISHVAC 2015 Joint with the 3rd International Conference on Building Energy and Environment, COBEE 2015 - Tianjin, China Duration: 12 Jul 2015 → 15 Jul 2015

UN SDGs

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

SDG 7 Affordable and Clean Energy

Research Keywords

displacement ventilation
Energy saving
mixing ventilation
wireless sensor network

Publisher's Copyright Statement

This full text is made available under CC-BY-NC-ND 4.0. https://creativecommons.org/licenses/by-nc-nd/4.0/

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title = "Experimental Study of Energy Saving Potential in Mixing and Displacement Ventilation with Wireless Sensor Networks",

abstract = "The objective of this study is to explore energy saving potential when wireless temperature sensor network is used in room temperature control when the room uses a mixing or displacement ventilation system. A typical classroom is selected for this study, inside which a number of wireless sensors will be installed at the breathing level to investigate the temperature profiles. By comparing with a traditional design of temperature control (i.e. temperature sensor is installed inside a return air duct), 22\% (216m3/h) and 32\% (205m3/h) of supply airflow rate can be saved in fully and half occupied conditions in the mixing ventilation without scarifying thermal comfort. In the displacement ventilation, even though there was no supply airflow rate saving in fully occupied condition, 15\% (86m3/h) reduction in the supply airflow rate was achieved in half occupied condition. Therefore, the use of wireless temperature sensor network in a room temperature control may lead to a significant energy saving of the air-conditioning system.",

keywords = "displacement ventilation, Energy saving, mixing ventilation, wireless sensor network",

author = "Pei Zhou and Gongsheng Huang",

year = "2015",

doi = "10.1016/j.proeng.2015.09.076",

language = "English",

volume = "121",

pages = "1497--1504",

journal = "Procedia Engineering",

issn = "1877-7058",

publisher = "Elsevier B.V.",

note = "9th International Symposium on Heating, Ventilation and Air Conditioning, ISHVAC 2015 Joint with the 3rd International Conference on Building Energy and Environment, COBEE 2015 ; Conference date: 12-07-2015 Through 15-07-2015",

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TY - JOUR

T1 - Experimental Study of Energy Saving Potential in Mixing and Displacement Ventilation with Wireless Sensor Networks

AU - Zhou, Pei

AU - Huang, Gongsheng

PY - 2015

Y1 - 2015

N2 - The objective of this study is to explore energy saving potential when wireless temperature sensor network is used in room temperature control when the room uses a mixing or displacement ventilation system. A typical classroom is selected for this study, inside which a number of wireless sensors will be installed at the breathing level to investigate the temperature profiles. By comparing with a traditional design of temperature control (i.e. temperature sensor is installed inside a return air duct), 22% (216m3/h) and 32% (205m3/h) of supply airflow rate can be saved in fully and half occupied conditions in the mixing ventilation without scarifying thermal comfort. In the displacement ventilation, even though there was no supply airflow rate saving in fully occupied condition, 15% (86m3/h) reduction in the supply airflow rate was achieved in half occupied condition. Therefore, the use of wireless temperature sensor network in a room temperature control may lead to a significant energy saving of the air-conditioning system.

AB - The objective of this study is to explore energy saving potential when wireless temperature sensor network is used in room temperature control when the room uses a mixing or displacement ventilation system. A typical classroom is selected for this study, inside which a number of wireless sensors will be installed at the breathing level to investigate the temperature profiles. By comparing with a traditional design of temperature control (i.e. temperature sensor is installed inside a return air duct), 22% (216m3/h) and 32% (205m3/h) of supply airflow rate can be saved in fully and half occupied conditions in the mixing ventilation without scarifying thermal comfort. In the displacement ventilation, even though there was no supply airflow rate saving in fully occupied condition, 15% (86m3/h) reduction in the supply airflow rate was achieved in half occupied condition. Therefore, the use of wireless temperature sensor network in a room temperature control may lead to a significant energy saving of the air-conditioning system.

KW - displacement ventilation

KW - Energy saving

KW - mixing ventilation

KW - wireless sensor network

UR - https://www.scopus.com/pages/publications/84957895084

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84957895084&origin=recordpage

U2 - 10.1016/j.proeng.2015.09.076

DO - 10.1016/j.proeng.2015.09.076

M3 - RGC 21 - Publication in refereed journal

SN - 1877-7058

VL - 121

SP - 1497

EP - 1504

JO - Procedia Engineering

JF - Procedia Engineering

T2 - 9th International Symposium on Heating, Ventilation and Air Conditioning, ISHVAC 2015 Joint with the 3rd International Conference on Building Energy and Environment, COBEE 2015

Y2 - 12 July 2015 through 15 July 2015

ER -

Experimental Study of Energy Saving Potential in Mixing and Displacement Ventilation with Wireless Sensor Networks

Abstract

UN SDGs

Research Keywords

Publisher's Copyright Statement

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