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19
/09
/20
161
He
nrik
Ho
lmb
erg
, Ph
DW
illem
Ma
zzo
tti, Ph
D c
an
did
ate
Asp
lan
Via
k A
SK
TH
Ro
ya
l Institu
te o
f Te
ch
no
log
y
KT
H G
SH
P C
on
fere
nc
e, 1
5th
of
Se
pte
mb
er 2
01
6
Deep
an
d C
oaxia
l Bo
reh
ole
Heat
Exch
an
gers
for G
rou
nd
So
urc
e H
eat
Pu
mp
s
De
ep
an
d c
oa
xia
lBH
Es
EF
FS
YS
Exp
an
d
•D
eep B
HE
s: s
tatu
s / b
ackgro
und
•A
dvanta
ges
•D
isadvanta
ges
•C
halle
nges
•Tests
–A
sker / S
tockholm
•F
utu
re w
ork
and re
searc
h?
19
/09
/20
162
De
ep
an
d c
oa
xia
lBH
Es
Deep
bo
reh
ole
s: s
tatu
s
�D
eep(e
r) bore
hole
s?
•D
eep fo
r GS
HP
sbut
not ”d
eep
geoth
erm
al”
•≥ 3
00 m
Norw
ay –-
Skoger s
kole
5 x
500 m
–sin
gle
50 m
m U
-colle
cto
r-2011
-V
olle
n 9
x 5
00 m
–sin
gle
50 m
m U
-colle
cto
r –2012
-A
sker 2
x 8
00 m
–pilo
t pla
nt –
Coaxia
l colle
cto
r -2016
Sw
eden
-B
irger J
arls
gata
n, 4
x510 m
-V
alle
ntu
na, 1
x550 m
-H
els
ingborg
, 1x342 m
-U
ppsala
, 22x335 m
gro
ute
d
-S
tockholm
, 1x500 m
-S
tockholm
, 2 o
ther
insta
llatio
ns (m
ore
?)
-T
äby, ?
x600 m
(?)
-S
tockholm
, 18x300 m
-F
ars
ta, 1
4x300 m
-K
TH
live-in
-lab, 2
25-3
50 m
-D
N h
uset, ?
x300 m
De
ep
an
d c
oa
xia
lBH
Es
Mo
tivatio
n?
�In
cre
ase
din
tere
stin
drillin
g d
ee
pe
rh
ole
s: tre
nd
SG
U (2
01
6)
Ge
hlin
et a
l. (20
16
)
19
/09
/20
163
De
ep
an
d c
oa
xia
lBH
Es
Tem
pera
ture
measu
rem
en
tsin
on
-sh
ore
bo
reh
ole
sin
No
rway
Sourc
e: N
GU
Report 2
013.0
08, E
valu
atio
n o
fth
e
deep
geoth
erm
alpote
ntia
lin
Moss a
rea, Ø
stfo
ld
County.
Sourc
e: S
lagsta
det
al. 2
009
De
ep
an
d c
oa
xia
lBH
Es
Sim
ula
tion
of C
oaxia
l BH
Es
Sim
ula
tion o
f BH
Es -
usin
g T
RC
M m
odels
(in P
hD
)
Coaxia
l bore
hole
heat e
xchanger –
com
paris
ion w
ith e
xperim
enta
l results
from
Acuña 2
013
99.5
10
10.5
11
11.5
12
12.5
13
13.5
-200
-180
-160
-140
-120
-100
-80
-60
-40
-20 0
Tem
pera
ture ( oC
)
Depth (m)
20
.42
h
20
.92
h
21
.92
h
12.5
13
13.5
14
14.5
15
15.5
16
-200
-180
-160
-140
-120
-100
-80
-60
-40
-20 0
Tem
perature ( oC
)
Depth (m)
57
.8 h
66
.1 h
74
.4 h
82
.8 h
91
.1 h
Holm
berg
. H., A
cuña. J
., Næ
ss. E
., Sø
nju
. K. O
., Therm
al E
valu
atio
n o
f
Deep C
oaxia
l Bore
hole
Heat E
xchangers
. Renew
able
energ
y 2016. v
97,
pp 6
5-7
6
19
/09
/20
164
De
ep
an
d c
oa
xia
lBH
Es
300
400
500
600
700
800
900
1000
0 20
40
60
80
100
Heating load (kW)
Dep
th(m)
GG
= 15 K
/k
m
GG
= 20
K/k
m
GG
= 25 K
/k
m
300
400
500
600
700
800
900
1000
0
0.5 1
1.5 2
2.5 3
Pressure drop(bar)D
epth(m
)
d0
=1
40
mm
d0
=1
65
mm
d0
=1
85
mm
Sp
ecific
he
at e
xctra
ctio
n(W
/m) in
cre
ase
s
Depth
dependency
Holm
berg
. H., A
cuña. J
., Næ
ss. E
., Sø
nju
. K. O
., Therm
al E
valu
atio
n
of D
eep C
oaxia
l Bore
hole
Heat E
xchangers
. Renew
able
energ
y 2016.
v 9
7, p
p 6
5-7
6
Sim
ula
tion o
f deep d
ependency,
usin
g T
RC
M m
odels
De
ep
an
d c
oa
xia
lBH
Es
Key fin
din
gs:
Optim
um
config
ura
tion fo
r a d
eep c
oaxia
l BH
E fo
r heat p
um
p
applic
atio
ns is
a c
om
bin
atio
n o
f a th
in w
alle
d c
ente
r pip
e a
nd a
rath
er
hig
h m
ass flo
w ra
te.
Incre
ase in
sys
tem
perfo
rmance w
ith in
cre
asin
g d
epth
outw
eig
hts
the
incre
ase in
pre
ssure
losses a
nd p
um
pin
g p
ow
er.
Holm
berg
. H., A
cuña. J
., Næ
ss. E
., Sø
nju
. K. O
., Therm
al E
valu
atio
n o
f
Deep C
oaxia
l Bore
hole
Heat E
xchangers
. Renew
able
energ
y 2016. v
97,
pp 6
5-7
6
19
/09
/20
165
De
ep
an
d c
oa
xia
lBH
Es
Deep
bo
reh
ole
s, a
dvan
tag
es
SG
U (2
01
6)
De
ep
an
d c
oa
xia
lBH
Es
Deep
bo
reh
ole
s, a
dvan
tag
es
�B
uilt-u
p a
rea
s: la
ck o
f sp
ace
�L
arg
eso
illa
ye
r(c
asin
g)
�H
igh
er
tem
pe
ratu
res
at la
rge
rd
ep
ths
(be
tter
CO
P o
r mo
re
en
erg
y((k
Wh
/m) / y
ea
r))
�N
eig
hb
or in
sta
llatio
ns: lo
w te
mp
era
ture
s in
sh
allo
w re
gio
ns
�P
ossib
le in
co
lde
r clim
ate
, no
rthe
rn N
orw
ay / S
we
de
n
�C
an
use
wa
ter a
s th
e h
ea
t ca
rrier
SG
U (2
01
6)
Ge
hlin
et a
l. (20
16
)
19
/09
/20
166
De
ep
an
d c
oa
xia
lBH
Es
Deep
bo
reh
ole
s, d
isad
van
tag
es
�E
conom
ic lim
itatio
ns
•H
igher in
vestm
ent c
osts
, drillin
g / c
olle
cto
r?
�R
isk-
drillin
g d
epth
/ colle
cto
r insta
llatio
n.
�(O
nly) fo
r heat e
xtra
ctio
n
�P
ressure
dro
p h
as to
be c
onsid
ere
d fo
r deep U
-
colle
cto
rs.
�Little
experie
nce w
ith c
oaxia
l BH
Es.
De
ep
an
d c
oa
xia
lBH
Es
Deep
bo
reh
ole
s, c
halle
ng
es
�P
recis
ion o
f the d
rilling: n
eed to
measure
the b
ore
hole
s
positio
n?
�E
conom
ical c
onsid
era
tions
–drillin
g / ( c
olle
cto
r )
�C
olle
cto
r desig
n a
nd in
sta
llatio
n
�B
ouancy
forc
es, U
-colle
cto
r
•E
xte
rnal p
ressure
•U
plift
�P
ressure
dro
p / th
erm
al e
ffect
19
/09
/20
167
De
ep
an
d c
oa
xia
lBH
Es
Devia
tion
measu
rem
en
ts
�U
p to
29
% d
evia
tion
with
resp
ect to
tota
l de
pth
�D
ow
n to
5,5
%
�P
refe
rred
drillin
g d
irectio
n?
De
ep
an
d c
oa
xia
lBH
Es
Deep
bo
reh
ole
s, lim
itatio
ns
�K
rusheln
itzky
and B
rachm
an
(2009): v
ertic
aldiffe
rentia
l pre
ssure
s
up
to 3
0 b
ar in
100 m
m H
DP
E D
R11 &
DR
26 �
no e
vid
ence
of
bucklin
g b
ut
defo
rmatio
n in
toellip
ticalshapes
-100
0
-900
-800
-700
-600
-500
-400
-300
-200
-100 0
-4-2
02
46
8
Depth [m]
Pre
ssure
diffe
rence a
s c
om
pare
d to
gro
undw
ate
r [bar]
Eth
ano
l - Fp
-10°C
Eth
yle
ne G
lycol - F
p -1
0°C
SD
R1
7
SD
R1
1
Me
lind
er (2
00
7)
Ge
hlin
et a
l. (20
16
)
19
/09
/20
168
De
ep
an
d c
oa
xia
lBH
Es
Aske
r -8
00
m c
oa
xia
l pilo
t pla
nt
•A
sker k
om
mune
•B
åsum
borin
g
•E
nova
•In
novasjo
n N
org
e
•A
spla
n V
iak
De
ep
an
d c
oa
xia
lBH
Es
•D
rilling
of2
x 8
00
m (1
4.4
-
12
.5.2
01
6)
•0
-2
00
m, Ø
16
5 m
m
•2
00
–8
00
m, Ø
14
0 (e
astb
ore
ho
le)
an
d Ø
15
0 m
m (v
est b
ore
ho
le)
Ro
tary
ha
mm
er d
rilling
, with
bo
ste
ra
ir
co
mp
resso
r(6
5 b
ar)
Asker -
800 m
coaxia
l pilo
t pla
nt
19
/09
/20
169
De
ep
an
d c
oa
xia
lBH
Es
�F
lexib
le o
ute
r flexib
le p
ipe (“h
ose”).
�P
E 7
5m
m S
DR
17 c
ente
rpip
e. 1
5.8
.16
�F
irst c
oolin
g D
TR
T p
erfo
rmed 1
6.8
.16 –
25.8
.16.
Asker -
800 m
coaxia
l pilo
t pla
nt
De
ep
an
d c
oa
xia
lBH
Es
Asp
lan
Via
k/ N
TN
U
Fib
er
op
tics
Asker -
800 m
coaxia
l pilo
t pla
nt
West b
ore
hole
East b
ore
hole
19
/09
/20
16
10
De
ep
an
d c
oa
xia
lBH
Es
Insta
llatio
n o
fth
e c
ente
r pip
e+
fiber
Asker -
800 m
coaxia
l pilo
t pla
nt
De
ep
an
d c
oa
xia
lBH
Es
Fib
er o
ptic
: measurin
gsyste
m
Asker -
800 m
coaxia
l pilo
t pla
nt
19
/09
/20
16
11
De
ep
an
d c
oa
xia
lBH
Es
Asker -
800 m
coaxia
l pilo
t pla
nt
De
ep
an
d c
oa
xia
lBH
Es
Tem
pera
ture
measure
ments
-90
0
-80
0
-70
0
-60
0
-50
0
-40
0
-30
0
-20
0
-10
0 0
5,0
7,0
9,0
11
,01
3,0
15
,01
7,0
19
,02
1,0
Depth [m]
Te
mp
era
ture
[°C]
-90
0
-80
0
-70
0
-60
0
-50
0
-40
0
-30
0
-20
0
-10
0 0
7,0
8,0
9,0
10
,01
1,0
12
,01
3,0
Depth [m]
Te
mp
era
ture
[°C]
Ca
libra
tion
erro
r
Asker -
800 m
coaxia
l pilo
t pla
nt
0
20
0
40
0
60
0
80
0
10
00
12
00
-2,0
0,0
2,0
4,0
6,0
8,0
10
,01
2,0
14
,01
6,0
18
,02
0,0
Length [m]
Te
mp
era
ture
[°C]
19
/09
/20
16
12
De
ep
an
d c
oa
xia
lBH
Es
Deep
bo
reh
ole
s, te
sts
:510 m
bo
reh
ole
in S
tockh
olm
Tem
pera
ture
measure
ments
-55
0
-45
0
-35
0
-25
0
-15
0
-50
9,0
11
,01
3,0
15
,0
Depth [m]
Te
mp
era
ture
[°C]
Sto
ckh
olm
51
0 m
We
ss
ma
n
En
trep
ren
ad
AB
-51
0-4
80
-45
0-4
20
-39
0-3
60
-33
0-3
00
-27
0-2
40
-21
0-1
80
-15
0-1
20
-90
-60
-30 0
13
,51
4,5
15
,51
6,5
Depth [m]
Tem
pe
ratu
re [°C
]
ou
t
-90
0
-80
0
-70
0
-60
0
-50
0
-40
0
-30
0
-20
0
-10
0 0
5,0
7,5
10
,01
2,5
15
,01
7,5
20
,0
Depth [m]
Tem
pe
ratu
re [°C
]
Sto
ckh
olm
51
0 m
Up
psa
la 3
40
m
Aske
r - 80
0 m
De
ep
an
d c
oa
xia
lBH
Es
Fie
ldte
sts
/ insta
llatio
ns
Ra
wd
ata
Ch
an
ne
l1
19
/09
/20
16
13
De
ep
an
d c
oa
xia
lBH
Es
Deep
an
d c
oaxia
lB
HE
sp
roje
ct
1.
Deep b
ore
hole
s: a
dvanta
ges a
nd d
raw
backs fo
r exis
ting
and n
ew
pro
jects
2.
Develo
pm
ent o
f a d
esig
n m
eth
od fo
r multip
le b
ore
hole
field
s u
sin
g c
oaxia
l heat e
xchangers
3.
Quantific
atio
n o
f therm
al in
fluence b
etw
een n
eig
hbor
sys
tem
s w
ith s
hallo
w a
nd d
eep b
ore
hole
s
4.
Insta
llatio
n a
nd e
xperim
enta
l evalu
atio
n o
f deep b
ore
hole
heat e
xchangers
5.
Labora
tory m
odel o
f gro
und s
tora
ge in
shallo
w a
nd
deep
bore
hole
s
De
ep
an
d c
oa
xia
lBH
Es
Ou
rsp
on
so
rs
COOLY
19
/09
/20
16
14
De
ep
an
d c
oa
xia
lBH
Es
Th
an
kyo
u!
Conta
ct:
Wille
m M
azzotti, P
hD
candid
ate
KT
H R
oya
l Institu
te o
f Technolo
gy, S
weden
Mob: +
46 7
2 5
82 6
2 8
1
Em
ail: w
illem
.mazzotti@
energ
y.kth
.se
ww
w.e
nerg
y.k
th.s
e/e
nerg
ibru
nn
ar
Henrik
Holm
berg
PhD
Aspla
n V
iak A
S, N
orw
ay
Mob: +
47 9
5749363
Em
ail: h
enrik
.holm
berg
@aspla
nvia
k.n
o
De
ep
an
d c
oa
xia
lBH
Es
ww
w.s
vepin
fo.s
ew
ww
.pem
tec.s
e
Fib
er
in th
e b
ore
ho
le
Tn
Tn
-1
T1
T2
T3
T4
……
….
Tem
pera
ture
measu
rem
en
tw
ith o
ptic
fiber
DT
S
Instru
me
nt
DT
S
Instru
me
nt
19
/09
/20
16
15
De
ep
an
d c
oa
xia
lBH
Es
Tem
pera
ture
measu
rem
en
tw
itho
ptic
fiber
Fara
haniand G
ogolla
(1999)
Hausner
et a
l. (2011)
�T
he
Ra
ma
n e
ffect(R
am
an
sca
tterin
g)
Ca
libra
tion
