12th International Symposium on District Heating and Cooling

More documents

Recommendations

Info

The <strong>12th</strong> <strong>International</strong> <strong>Symposium</strong> on District Heating and Cooling,September 5 th to September 7 th , 2010, Tallinn, EstoniaFURTHER INFORMATIONQuestions concerning the paper can be addressed to:Thermaflex <strong>International</strong> Holding B.V.Veerweg 15145NS WaalwijkThe NetherlandsLiandon B.V.Dijkgraaf 46920AB DuivenThe NetherlandsACKNOWLEDGEMENTAcknowledgments go to both the test institutes for theiropen and honest explanation of their testing methodsand facilities and for even showing the entire facilityand methods.Furthermore acknowledgements go to all involvedemployees of Thermaflex Isolatie B.V. and LiandonB.V. who made this research possible. Specialacknowledgements go to P. Blom and P. van Rijswijkfor their devotion on all the heat loss measurementsthey performed during this research in a short amountof time.REFERENCES[1] NEN-EN 15632 and NEN-EN-ISO 8497[2] P. Wallentén, ―steady-state heat loss frominsulated pipes‖, Lund Institute of Technology,Sweden, 1991[3] J. Korsman and G. Baars, ―Heat loss systemoptimization‖, <strong>12th</strong> ISDHC 2010[4] E. van der Ven and R. van Arendonk, ―Heat lossanalysis and optimization‖, <strong>12th</strong> ISDHC 2010[5] C. Engel and G. Baars, ―New economicalconnection solution for flexible piping systems‖,<strong>12th</strong> ISDHC 2010.[6] I. Smits and E van der Ven, ―Performance of preinsulated pipes‖, <strong>12th</strong> ISDHC 2010.257
The <strong>12th</strong> <strong>International</strong> <strong>Symposium</strong> on District Heating and Cooling,September 5 th to September 7 th , 2010, Tallinn, EstoniaDISTRICT HEATING AND COOLING WITH LARGE CENTRIFUGAL CHILLER-HEATPUMPSUlrich PietruchaFriotherm AG, SwitzerlandABSTRACTWith prices for primary energy resources soaring, therecovery of "waste energy" was getting into the focus ofattention within the last years. Also the global climatechange reminded us to limit the use of primary energyresources to a minimum, thus exploiting "waste energy"potentials wherever feasible. The process of upgradinglow grade waste heat is especially interesting wherelarge amounts of such energy are available at onepoint, e.g. next to sewage water treatment plants,alongside main sewers, in power plants or close toground water sources.Even if the "waste energy" potential is abundant andeasily exploitable, the aspect of overall thermalefficiency is considered crucial for the final decision toinvest in large heat recovery installations.Number of units 2TypeUNITOP® 50 FY/34FYRefrigerantR134aHeat source medium Raw waste waterRaw sewage water inlet 10.0 °C ... ~ 15 °CRaw sewage flow water flow 3800 m3/hHeating water temp. in/out 60 / 90 °CHeating water flow824 m3/hPower at terminal9‘750 kWHeat capacity27‘600 kWCoefficient of performance 2.83 up to >3.0INTRODUCTIONDescribed are five applications of large centrifugal heatpumps-chillers for the use in large districtheating/cooling systems.Application 1: Heat recovery from raw sewage waterand hot water production at 90 °C.Application 2: Combined heating and cooling with araw sewage water heat pump/chiller installation. Thisplant is operated successful since 1989.Application 3: Combined heating and cooling: acombination of cooling with simultaneously heatproduction in summer and heat recovery from cleanedsewage water in winter.Application 4: Heat recovery from wet flue gascleaning processApplication 5: Combined heating and cooling inStockholm1. SKOYEN VEST PLANT IN OSLO: HOT WATERPRODUCTION AT 90 °CThis is the world's largest heat pump plant using rawwaste water as heat source. It is installed in a cavernalongside one of the main waste water channels inOslo. With 2 heat pumps a heating capacity of 27'600kW is generated by recovering heat from raw wastewater.One of the Skoyen heat pumps2. THE SANDVIKA PLANT IN OSLO: COMBINEDHEATING AND COOLING FROM A RAW SEWAGEWATER HEAT PUMPThis is the oldest combined chiller/ heat pumpinstallation in the world, producing simultaneouslycooling, taking out heat from raw sewage water andproducing heating capacity for the district heatingsystem.The heat pumps are in successful operation since 1989and each one has an additional heat exchanger, whichis used either as raw sewage evaporator or as rawsewage water condenser.Each heat pump has an overall operating time of about160'000 hours, means the heat pumps were operatedsince 1989 each year for more than 8'400 hours.A 3rd larger heat pump was taken into operation in2008.258
Page 1:
12th Inter
Page 5 and 6:
The 12th I
Page 7 and 8:
The 12th I
Page 10 and 11:
The 12th I
Page 12 and 13:
The 12th I
Page 14 and 15:
For the case of parallel buried pip
Page 16 and 17:
The 12th I
Page 18 and 19:
The 12th I
Page 20 and 21:
The 12th I
Page 22 and 23:
The 12th I
Page 24 and 25:
The 12th I
Page 26 and 27:
The 12th I
Page 28 and 29:
The 12th I
Page 30 and 31:
The 12th I
Page 32 and 33:
The 12th I
Page 34 and 35:
The 12th I
Page 36 and 37:
The 12th I
Page 38 and 39:
The 12th I
Page 40 and 41:
The 12th I
Page 42 and 43:
The 12th I
Page 44 and 45:
The 12th I
Page 46 and 47:
The 12th I
Page 48 and 49:
The 12th I
Page 50 and 51:
The 12th I
Page 52 and 53:
The 12th I
Page 54 and 55:
The 12th I
Page 56 and 57:
The 12th I
Page 58 and 59:
The 12th I
Page 60 and 61:
The 12th I
Page 62 and 63:
The 12th I
Page 64 and 65:
The 12th I
Page 66 and 67:
The 12th I
Page 68 and 69:
The 12th I
Page 70 and 71:
The 12th I
Page 72 and 73:
The 12th I
Page 74 and 75:
The 12th I
Page 76 and 77:
The 12th I
Page 78 and 79:
The 12th I
Page 80 and 81:
The 12th I
Page 82 and 83:
The 12th I
Page 84 and 85:
The 12th I
Page 86 and 87:
The 12th I
Page 88 and 89:
The 12th I
Page 90 and 91:
The 12th I
Page 92 and 93:
The 12th I
Page 94 and 95:
The 12th I
Page 96 and 97:
The 12th I
Page 98 and 99:
the street the more shallow the sha
Page 100 and 101:
The 12th I
Page 102 and 103:
The 12th I
Page 104 and 105:
The 12th I
Page 106 and 107:
The 12th I
Page 108 and 109:
The 12th I
Page 110 and 111:
P-1P-4P-9P-7E-5P-14P-8The 1
Page 112 and 113:
The 12th I
Page 114 and 115:
The 12th I
Page 116 and 117:
The 12th I
Page 118 and 119:
The 12th I
Page 120 and 121:
The 12th I
Page 122 and 123:
The 12th I
Page 124 and 125:
The 12th I
Page 126 and 127:
The 12th I
Page 128 and 129:
The 12th I
Page 130 and 131:
The 12th I
Page 132 and 133:
The 12th I
Page 134 and 135:
The 12th I
Page 136 and 137:
The 12th I
Page 138 and 139:
to heating costs of 14,5 ct/kWh. Th
Page 140 and 141:
The 12th I
Page 142 and 143:
The 12th I
Page 144 and 145:
The 12th I
Page 146 and 147:
The 12th I
Page 148 and 149:
academic access is facilitated as t
Page 150 and 151:
The 12th I
Page 152 and 153:
The 12th I
Page 154 and 155:
The 12th I
Page 156 and 157:
The 12th I
Page 158 and 159:
The 12th I
Page 160 and 161:
The 12th I
Page 162 and 163:
1. CHP system operation in A2. Ther
Page 164 and 165:
The 12th I
Page 166 and 167:
is covered by operating HOB. In oth
Page 168 and 169:
The 12th I
Page 170 and 171:
The 12th I
Page 172 and 173:
The 12th I
Page 174 and 175:
The 12th I
Page 176 and 177:
The 12th I
Page 178 and 179:
The 12th I
Page 180 and 181:
The 12th I
Page 182 and 183:
The 12th I
Page 184 and 185:
The 12th I
Page 186 and 187:
The 12th I
Page 188 and 189:
The 12th I
Page 190 and 191:
The 12th I
Page 192 and 193:
The 12th I
Page 194 and 195:
The 12th I
Page 196 and 197:
produce heat and electricity. Fluct
Page 198 and 199:
The 12th I
Page 200 and 201:
The 12th I
Page 202 and 203:
The 12th I
Page 204 and 205:
The 12th I
Page 206 and 207:
The 12th I
Page 208 and 209: The 12th I
Page 210 and 211: To assure that the temperatures mea
Page 220 and 221: production and provide for marginal
Page 242 and 243: In addition, it can also be observe
Page 246 and 247: owner is normally only interested i
Page 290 and 291: Stockholm district heating system a
Page 308 and 309:
The 12th I
Page 310 and 311:
The 12th I
Page 312 and 313:
The 12th I
Page 314 and 315:
The values presented do of course l
Page 316 and 317:
The 12th I
Page 318 and 319:
The 12th I
Page 320 and 321:
The 12th I
Page 322 and 323:
The 12th I
Page 324 and 325:
The 12th I
Page 326:
The 12th I
show all

12th International Symposium on District Heating and Cooling

Create successful ePaper yourself

Delete template?

Save as template?