Energy refurbishment of the R82 factory
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SUSTAINABLE ENERGY MINI PROJECT David Canosa Vaamonde Jose Miguel Salgado Perez Martin Amado Pousa Pedro Rico Lopez R82 ENERGY REFURBISHMENT
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The project consists in the energy refurbishment of the R82 factory, which is placed in Gedved (Denmark), in order to reduce the energy consumption and get a money savings to the company. R82 produces technical aids and appliances for disabled children and young people throughout the whole world. Based in Denmark with Subsidiary Companies and Sales Representatives in England, Holland, Germany, the Czech Republic, Austria, Switzerland, Australia, China and the USA, we develop products tailored to individual needs. Through comprehensive development R82 is constantly moving forward - but without compromising quality of service and closeness to the customer. Distributors in more than 30 countries spread over most of the globe ensure personal support – even after the product has been delivered. The objective of each and every R82 employee is: adjustment to individual needs to provide the child the greatest possible freedom – in a world in movement.
Transcript of Energy refurbishment of the R82 factory
- 1. R82 ENERGY REFURBISHMENTDavid Canosa Vaamonde Jose Miguel Salgado Perez Martin Amado Pousa Pedro Rico LopezSUSTAINABLE ENERGY MINI PROJECT
2. SUSTAINABLE ENERGYINTRODUCTION Location (Gedved). Parking 3. SUSTAINABLE ENERGYR82 Buildings Building 2Building 1 4. SUSTAINABLE ENERGYWhats this project about? The purpose of the project is to reduce the energy consumption of R82 company buildings. We have designed a heat recovery system connected to water-water heat pumps. These heat pumps supply energy to the heating system reducing the gas consumption. As well, we have designed a PV cells plan projecting a steal construction to cover the outside parking. We would like to know how far the renewable energy systems can save sources and money and in how many time could be the investment depreciated. 5. SUSTAINABLE ENERGYMAIN REPORT Heating solution. Heat recovery system. Heat pumps.Electrical solution. PV solar panels. 6. SUSTAINABLE ENERGYHeating solution. Building 1 Area3792 m2Building 2 Area2476 m2Heating demand558 MWh/aHeating demand360 MWh/aAirflow5694 l/s 6,79 kg/sAirflow3667 l/s 4,37 kg/s 7. SUSTAINABLE ENERGYBuilding 1 Heat pumps sytemHeat recovery Water heat accumulatorGas boiler 8. SUSTAINABLE ENERGYBuilding 1 Heat exchanger into the ventilation unit on the roof5694,4 l/s20C 1,013 bar h = 34,81 kJ/kgH = 270 kW 9. SUSTAINABLE ENERGYBuilding 1 5694,4 l/s10,9 C 1,028 bar h2 = 18,47 kJ/kg 5694,4 l/s20 C 1,013 bar h1 = 34,81 kJ/kgHeat losses 20 %Heat recovery system qm = 6,79 kg/s HAIR = 111 kW HAIR,recovery = 88,8 kW We recover the 33 % of the enthalpy into the extract air (free energy) 10. SUSTAINABLE ENERGYBuilding 1 COP = 3,39Heat Pump water-waterFrom the heat exchangerFrom the water storageCompressor P = 12,4 kW Condenser P = 42 kWEvapopator P = 29,6 kWTo the heat exchanger To the water storageExpansion valve 11. SUSTAINABLE ENERGYBuilding 1Heat pumps sytem (295 MWh/a)Reduction of gas consumption = 52 %Heat recovery (207 MWh/a)Energy saving = 37 %Total heating demand (558 MWk/a) 12. SUSTAINABLE ENERGYBuilding 2 Heat exchanger into the ventilation unit on the roof3666,5 l/s20C 1,013 bar h = 34,81 kJ/kgH = 152 kW 13. SUSTAINABLE ENERGYBuilding 2 3666,5 l/s10,9 C 1,028 bar h2 = 18,47 kJ/kg 3666,5 l/s20 C 1,013 bar h1 = 34,81 kJ/kgHeat losses 20 %Heat recovery system qm = 4,37 kg/s HAIR = 71,5 kW HAIR,recovery = 57,2 kW We recover the 37,6 % of the enthalpy into the extract air (free energy) 14. SUSTAINABLE ENERGYBuilding 2 COP = 3,13Heat Pump water-waterFrom the heat exchangerFrom the water storageCompressor P = 13,4 kW Condenser P = 42 kWEvapopator P = 28,6 kWTo the heat exchanger To the water storageExpansion valve 15. SUSTAINABLE ENERGYHeating solution. Building 2Heat pumps sytem (197 MWh/a)Reduction of gas consumption = 55 %Heat recovery (134 MWh/a)Energy saving = 37 %Total heating demand (360 MWk/a) 16. SUSTAINABLE ENERGYHeat pump financial analysis Life span25 yearsInvestment1.110.000,00 DKKSavings generated/a179.652,33 DKKSavings increasing2,10% per yearSubsidydiscount in fossil fuel taxesTotal savings6.113.275,56 DKKSimple payback5,83 yearsThe gas consumption will be reduced to a 52 %. 17. SUSTAINABLE ENERGYElectricity consumption solution. PV solar panels. 18. SUSTAINABLE ENERGYPhoto-Voltaic Solar Systems. 72 parking spaces.288 solar panels. 19. SUSTAINABLE ENERGYTechnical information about solar panels Solar panel. Nominal Power437 wEfficiency20,1%TechnologyCrystaline SiliconCell per panel128Area2m2Weight28,6kgTemperature operation-40o/+85o 20. SUSTAINABLE ENERGYPower energy calculation. 21. SUSTAINABLE ENERGYPower energy calculation (results) 22. SUSTAINABLE ENERGYPV cells financial analysis Life span25 yearsInvestment864.000,00 DKKSavings generated/a97.567,00 DKKSavings increasing6% per yearSubsidy in electricity price-14% - 10 first years -43% - 10 next yearsTotal savings5.846.033,07 DKKSimple payback7,73 yearsThe electricity consumption will be reduced to a 30%. 23. SUSTAINABLE ENERGYCONCLUSIONS Life span25 yearsInvestment1.974.000,00 DKKReduction:Savings generated/a289.545,78 DKK30% ElectricitySavings increasing4,5% per yearSubsidy4% of total savingsTotal savings11.959.308,63 DKKSimple payback52% Gas6,20 years42% CO2 emissions42% CO2 Reduction = 49000 Trees = 400000 m2 of forest 24. SUSTAINABLE ENERGYCONSUMPTION EVOLUTION kr. 800.000350 tonskr. 700.000300 tonskr. 600.000 250 tons kr. 500.000 200 tons kr. 400.000 150 tons kr. 300.000 100 tons kr. 200.000 50 tonskr. 100.000 kr. -tons20102011 CO2 emissions2012 ElectricityFuture Gas 25. SUSTAINABLE ENERGYPrograms used for do the calculations and designBe 10 26. SUSTAINABLE ENERGYTHANK YOU FOR YOUR ATTENTION!!SEE YOU IN A GREENER WORLD!!
