AM, EM, AQ, BA, ASW - IOM
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Ing.Ji
ř
í Jiránek
The following table lists recommended configurations of SLINKY collectors:
dry soil 70m
2
/kW – use is not recommended
SLINKY - wet soil 40m2/kW
HP Type
H.Cap.
B0W35
[kW]
Soil
Area
[m
2
]
Pipe
Dimension
200m
Loops
Pipe
Length
[m]
Circuit
Volume
[l]
AQ17
6,6
300
PE32
4
800
425
AQ22(AQ22I)
7,8
350
PE32
5
1000
531
AQ26
10,1
450
PE32
6
1200
637
AQ30(AQ30I)
11,4
500
PE32
6
1200
637
AQ37
14,1
600
PE32
8
1600
849
AQ45
17,2
700
PE32
9
1800
955
AQ50
18,5
750
PE32
9
1800
955
AQ60(AQ45I)
22,8
950
PE32
12
2400
1274
AQ75
27,8
1150
PE32
14
2800
1486
AQ90(AQ60I)
33,2
1350
PE32
17
3400
1804
SLINKY - sandrock below ground water level 20m2/kW
HP Type
H.Cap.
B0W35
[kW]
Soil
Area
[m
2
]
Pipe
Dimension
200m
Loops
Pipe
Length
[m]
Circuit
Volume
[l]
AQ17
6,6
150
PE32
2
400
212
AQ22(AQ22I)
7,8
200
PE32
3
600
318
AQ26
10,1
250
PE32
4
800
425
AQ30(AQ30I)
11,4
250
PE32
4
800
425
AQ37
14,1
300
PE32
5
1000
531
AQ45
17,2
350
PE32
6
1200
637
AQ50
18,5
400
PE32
7
1400
743
AQ60(AQ45I)
22,8
500
PE32
8
1600
849
AQ75
27,8
600
PE32
10
2000
1061
AQ90(AQ60I)
33,2
700
PE32
10
2000
1061
4.2.4 Vertical Ground Loop
This is an earth heat exchanger in the shape of single or double U which is located inside the
ground drill hole. Maximum recommended depth of one drill hole is 100m. In the case more
energy is required for the heat pump, heat is drawn from more drill holes. Minimum spacing of
drill holes is 10m.
Heat output per 1m differs depending on the subsoil quality. The dimensioning is also
necessary to perform depending on the heat loss of the building.
Type of subsoil
Output per 1m of drill
hole depth
Drill hole depth for 1kW for
building peak heat demand
Dry sediments
30W/m
25m
Clay, slate
60W/m
13m
Rock, rocky ground
80W/m
10m