MAIN SUBJECTS OF RESEARCH:
– storage material: YES/ftf$
– storage system : YES/fNffl
– total system : YES/fNtS
|
1. Material : 2. Density : |
granite 2700 |
kg/m3 |
|
3. Specific heat : |
800 |
J/kg К |
|
4. Mean heat capacity |
2.1 |
MJ/m3 к { |
|
5. Thermal conductivity : |
3 – 3.5 |
W/m К |
|
6. Permeability : |
– |
2 m |
|
7. Operating temperature interval: |
10 – 70 |
"C |
|
8. Price : |
100 SEK |
UA/m3 |
|
Properties at temperature : |
20 |
eC |
|
1051000 |
COST (incl – cost for labour)
DATA OF TOTAL SYSTEM
The number of heat consumers in the entire system: 525 dwellings 1. Heat consumption system: space heftting/domestic hot water/both
|
space heat load* |
: 30 10 |
MJ |
|
hot water load* |
: 20 103 |
MJ |
|
total load* |
: 50 103 |
MJ |
|
total systaai load* |
3 * 45 10 |
MJ |
|
temperature increases towards centre of store |
|
Figure 53: Sodertuna alt. С/Multiple well store – Schematic drawing |
ies at temperature
The number of heat consumers in the entire system: 1 family residence 259 m2
[2] Heat consumption system: space heating/domeStic hot water/both
Solvarmecentral Lambohov Allmogegatan 66
[4] – 583 30 LINKOPING
The number of heat consumers in the entire system: 525 dwellings + 3500 m2 communal
areas
[6] Heat consumption system: space heating/domeStic hot water/both
[8] Primary energy consumption for conventional system
2. Idem for solar heating system with seasonal heat storage
Frimary energy saved
Resume:
Primary energy saved:
Extra system cost : UA
REFERENCES: /25, 26/ CONTACT: P.0. KARLSSON
———- ————————————— Swedish State Power Board
[10] – 162 87 VALLINGBY Etoc
Box 1214
[12] – 181 23 LIDINGO
The number of heat consumers in the entire system:
[14] Heat consumption system: space heating/domestic hot water/both
space heat load* hot water load* total load* total systsm lead*
[16] Primary energy consumption for conventional system :
[17] Idem for solar heating system with seasonal heat storage: ____________
Primary energy saved : 3 GWh
Resume:
Primary energy saved: 3 GWh $ 150’000 CON 1983 annual saving
Extra system cost : $ 3501000 UA
[19] Primary energy consumption for conventional system
[20] Idem for solar heating system with seasonal heat storage;
Primary energy saved :
Resume:
Primary energy saved: Extra system cost :
The number of heat consumers in the entire system: simulated load
[22] at consumption system: space heating/domestic hot water/both space neat load* : MJ
hot water load* : MJ
total load* : MJ
‘280.10
Joint Research Center Ispra Establishment
[24] – 21020 ISPRA
