Heat recovery from air in underground transport tunnels

Konstantinos Ninikas; Nicholas Hytiris; Rohinton Emmanuel; Bjorn Aaen; Paul L. Younger

doi:10.1016/j.renene.2016.05.015

Heat recovery from air in underground transport tunnels

Konstantinos Ninikas^*, Nicholas Hytiris, Rohinton Emmanuel, Bjorn Aaen, Paul L. Younger

^*Corresponding author for this work

Civil Engineering and Environmental Management

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

27 Citations (Scopus)

372 Downloads (Pure)

Abstract

The performance of a typical air source heat pump could be increased dramatically by a relatively stable air temperature with a high humidity, even during the peak heating months. In this short communication we show such conditions exist in the underground transport tunnels of the Glasgow Subway system, where we had conducted an annual survey of air flow, air temperature and relative humidity at thirty different points within the subway network. We found relatively stable temperatures and sufficient air movement inside the twin tunnels (average temperature during winter = 15 °C, annual variation = 2.6 °C; average air flow = 16.47 m3/h) indicating higher system efficiency compared to a conventional air source heat pump installation. Potential energy and carbon savings are discussed.

Original language	English
Pages (from-to)	843-849
Number of pages	7
Journal	Renewable Energy
Volume	96
Issue number	A
Early online date	19 May 2016
DOIs	https://doi.org/10.1016/j.renene.2016.05.015
Publication status	Published - Oct 2016

Keywords

heat recovery
thermal comfort
air source heat pump

Documents and Links

10.1016/j.renene.2016.05.015

Ninikas, K et al (2016) Heat recovery from air in underground transport tunnels
© 2016. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/This is an author final version of the article originally published in: Renewable Energy (2016). The publisher version of this article is available via the DOI link below.
Author accepted manuscript, 826 KBLicence: CC BY-NC-ND

27 Citations
1 Article

Heat energy from a shallow geothermal system in Glasgow, UK: performance evaluation design
Ninikas, K., Hytiris, N., Emmanuel, R. & Aaen, B., Jul 2020, In: Environmental Geotechnics. 7, 4, p. 274–281 8 p., 1700033.
Research output: Contribution to journal › Article › peer-review

Open Access
File
5 Citations (Scopus)

381 Downloads (Pure)

Nicholas Hytiris
- AG220826gcu.acuk
- Civil Engineering and Environmental Management
Person

Cite this

@article{a0ecb75d013a427ea009b12a2754dd6b,

title = "Heat recovery from air in underground transport tunnels",

abstract = "The performance of a typical air source heat pump could be increased dramatically by a relatively stable air temperature with a high humidity, even during the peak heating months. In this short communication we show such conditions exist in the underground transport tunnels of the Glasgow Subway system, where we had conducted an annual survey of air flow, air temperature and relative humidity at thirty different points within the subway network. We found relatively stable temperatures and sufficient air movement inside the twin tunnels (average temperature during winter = 15 °C, annual variation = 2.6 °C; average air flow = 16.47 m3/h) indicating higher system efficiency compared to a conventional air source heat pump installation. Potential energy and carbon savings are discussed.",

keywords = "heat recovery, thermal comfort, air source heat pump",

author = "Konstantinos Ninikas and Nicholas Hytiris and Rohinton Emmanuel and Bjorn Aaen and Younger, {Paul L.}",

note = "Accepted 4 May 2016 (proof of acceptance saved in SAN 1-6-16 ET) Author uploaded AAM 20-5-16; 12m embargo required Online pub date 19 May 2016 ",

year = "2016",

month = oct,

doi = "10.1016/j.renene.2016.05.015",

language = "English",

volume = "96",

pages = "843--849",

journal = "Renewable Energy",

issn = "0960-1481",

publisher = "Elsevier Ltd",

number = "A",

}

TY - JOUR

T1 - Heat recovery from air in underground transport tunnels

AU - Ninikas, Konstantinos

AU - Hytiris, Nicholas

AU - Emmanuel, Rohinton

AU - Aaen, Bjorn

AU - Younger, Paul L.

N1 - Accepted 4 May 2016 (proof of acceptance saved in SAN 1-6-16 ET) Author uploaded AAM 20-5-16; 12m embargo required Online pub date 19 May 2016

PY - 2016/10

Y1 - 2016/10

N2 - The performance of a typical air source heat pump could be increased dramatically by a relatively stable air temperature with a high humidity, even during the peak heating months. In this short communication we show such conditions exist in the underground transport tunnels of the Glasgow Subway system, where we had conducted an annual survey of air flow, air temperature and relative humidity at thirty different points within the subway network. We found relatively stable temperatures and sufficient air movement inside the twin tunnels (average temperature during winter = 15 °C, annual variation = 2.6 °C; average air flow = 16.47 m3/h) indicating higher system efficiency compared to a conventional air source heat pump installation. Potential energy and carbon savings are discussed.

AB - The performance of a typical air source heat pump could be increased dramatically by a relatively stable air temperature with a high humidity, even during the peak heating months. In this short communication we show such conditions exist in the underground transport tunnels of the Glasgow Subway system, where we had conducted an annual survey of air flow, air temperature and relative humidity at thirty different points within the subway network. We found relatively stable temperatures and sufficient air movement inside the twin tunnels (average temperature during winter = 15 °C, annual variation = 2.6 °C; average air flow = 16.47 m3/h) indicating higher system efficiency compared to a conventional air source heat pump installation. Potential energy and carbon savings are discussed.

KW - heat recovery

KW - thermal comfort

KW - air source heat pump

U2 - 10.1016/j.renene.2016.05.015

DO - 10.1016/j.renene.2016.05.015

M3 - Article

SN - 0960-1481

VL - 96

SP - 843

EP - 849

JO - Renewable Energy

JF - Renewable Energy

IS - A

ER -

Heat recovery from air in underground transport tunnels

Abstract

Keywords

Documents and Links

Fingerprint

Research output

Heat energy from a shallow geothermal system in Glasgow, UK: performance evaluation design

Profiles

Nicholas Hytiris

Cite this