Cooling with heat recovery for electrical cable tunnels in cities
Conference paper
Davies, G, Revesz, A, Maidment, G, Davenport, A and Yazadzhiyan, B (2019). Cooling with heat recovery for electrical cable tunnels in cities. CIBSE Technical Symposium. Sheffield, UK 25 - 26 Apr 2019
Authors | Davies, G, Revesz, A, Maidment, G, Davenport, A and Yazadzhiyan, B |
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Type | Conference paper |
Abstract | Within cities, electrical power is often distributed by means of underground cable tunnels, frequently extending for many kilometres. Cables can generate significant heat, with the quantity of heat being directly related to the electrical load carried. Tunnel air temperatures are generally controlled by ventilation using outside air; preventing the cables from overheating. If active cooling was provided, tunnel air temperatures could be further reduced, permitting higher electrical loadings to be used. Using an air/water heat exchanger to cool the outside air entering the ventilation shaft has been investigated. The temperature of the heat extracted (to water) was increased using a heat pump before transfer to a heat network. Benefits identified included reduction in cable temperatures, and carbon and cost savings compared to conventional heat delivery. |
Year | 2019 |
Accepted author manuscript | License File Access Level Open |
Publication dates | |
25 Apr 2019 | |
Publication process dates | |
Deposited | 25 May 2019 |
Accepted | 07 Mar 2019 |
https://openresearch.lsbu.ac.uk/item/866ww
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