The combi heat store: A combined rock cavern/borehold heat store

Bo Nordell; Jouko Ritola; Kari Sipilä; Björn Sellberg

doi:10.1016/0886-7798(94)90036-1

The combi heat store: A combined rock cavern/borehold heat store

Bo Nordell, Jouko Ritola, Kari Sipilä, Björn Sellberg

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

Abstract

Since 1988, Sweden and Finland have collaborated bilaterally on thermal energy storage with respect to information exchange and collaborative R&D projects. The two countries have both investigated underground thermal energy storage for nearly two decades, and have similar bedrock—the Fenno-Scandian granitic rocks. This paper reviews the work performed in the field of combined rock cavern and borehole heat stores, concerned with construction technology, costs and design principles. One example is an asymmetric store, in the form of 40- to 60-m-long horizontal boreholes between two rock caverns, with the caverns themselves comprising only about 10% of the total storage volume. This design has a specific cost of $US0.40 million/ GWh and $US0.24 million/ GWh for storage capacities of 6 GWh and 36 GWh, respectively. Half of the total construction cost relates to the rock cavern part of the store.

Original language	English
Pages (from-to)	243-249
Journal	Tunnelling and Underground Space Technology
Volume	9
Issue number	2
DOIs	https://doi.org/10.1016/0886-7798(94)90036-1
Publication status	Published - 1994
MoE publication type	A1 Journal article-refereed

Access to Document

10.1016/0886-7798(94)90036-1

Cite this

@article{d75730d1d44148e7ba874183f549b215,

title = "The combi heat store: A combined rock cavern/borehold heat store",

abstract = "Since 1988, Sweden and Finland have collaborated bilaterally on thermal energy storage with respect to information exchange and collaborative R&D projects. The two countries have both investigated underground thermal energy storage for nearly two decades, and have similar bedrock—the Fenno-Scandian granitic rocks. This paper reviews the work performed in the field of combined rock cavern and borehole heat stores, concerned with construction technology, costs and design principles. One example is an asymmetric store, in the form of 40- to 60-m-long horizontal boreholes between two rock caverns, with the caverns themselves comprising only about 10% of the total storage volume. This design has a specific cost of $US0.40 million/ GWh and $US0.24 million/ GWh for storage capacities of 6 GWh and 36 GWh, respectively. Half of the total construction cost relates to the rock cavern part of the store.",

author = "Bo Nordell and Jouko Ritola and Kari Sipil{\"a} and Bj{\"o}rn Sellberg",

note = "Project code: YKIT9221",

year = "1994",

doi = "10.1016/0886-7798(94)90036-1",

language = "English",

volume = "9",

pages = "243--249",

journal = "Tunnelling and Underground Space Technology",

issn = "0886-7798",

publisher = "Elsevier",

number = "2",

}

TY - JOUR

T1 - The combi heat store

T2 - A combined rock cavern/borehold heat store

AU - Nordell, Bo

AU - Ritola, Jouko

AU - Sipilä, Kari

AU - Sellberg, Björn

N1 - Project code: YKIT9221

PY - 1994

Y1 - 1994

N2 - Since 1988, Sweden and Finland have collaborated bilaterally on thermal energy storage with respect to information exchange and collaborative R&D projects. The two countries have both investigated underground thermal energy storage for nearly two decades, and have similar bedrock—the Fenno-Scandian granitic rocks. This paper reviews the work performed in the field of combined rock cavern and borehole heat stores, concerned with construction technology, costs and design principles. One example is an asymmetric store, in the form of 40- to 60-m-long horizontal boreholes between two rock caverns, with the caverns themselves comprising only about 10% of the total storage volume. This design has a specific cost of $US0.40 million/ GWh and $US0.24 million/ GWh for storage capacities of 6 GWh and 36 GWh, respectively. Half of the total construction cost relates to the rock cavern part of the store.

AB - Since 1988, Sweden and Finland have collaborated bilaterally on thermal energy storage with respect to information exchange and collaborative R&D projects. The two countries have both investigated underground thermal energy storage for nearly two decades, and have similar bedrock—the Fenno-Scandian granitic rocks. This paper reviews the work performed in the field of combined rock cavern and borehole heat stores, concerned with construction technology, costs and design principles. One example is an asymmetric store, in the form of 40- to 60-m-long horizontal boreholes between two rock caverns, with the caverns themselves comprising only about 10% of the total storage volume. This design has a specific cost of $US0.40 million/ GWh and $US0.24 million/ GWh for storage capacities of 6 GWh and 36 GWh, respectively. Half of the total construction cost relates to the rock cavern part of the store.

U2 - 10.1016/0886-7798(94)90036-1

DO - 10.1016/0886-7798(94)90036-1

M3 - Article

SN - 0886-7798

VL - 9

SP - 243

EP - 249

JO - Tunnelling and Underground Space Technology

JF - Tunnelling and Underground Space Technology

IS - 2

ER -

The combi heat store: A combined rock cavern/borehold heat store

Abstract

Access to Document

Fingerprint

Cite this