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ERASMUS IP 2013 SUSTAINABLE REFURBISHMENT, RETROFIT, ENERGY MANAGEMENT IN HOUSING ŽIRMŪNŲ STR. 116, VILNIUS.

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Presentation on theme: "ERASMUS IP 2013 SUSTAINABLE REFURBISHMENT, RETROFIT, ENERGY MANAGEMENT IN HOUSING ŽIRMŪNŲ STR. 116, VILNIUS."— Presentation transcript:

1 ERASMUS IP 2013 SUSTAINABLE REFURBISHMENT, RETROFIT, ENERGY MANAGEMENT IN HOUSING ŽIRMŪNŲ STR. 116, VILNIUS

2 THE BALI TIGER GROUP SARAH BOISSIN Denmark GRETA DEMIKYTĖ Lithuania GABRIELE BRANCHET TI Italy AMOLRAJ SINGH Germany MATHEA CAPOROSSI France 2

3 Range: Indonesian Island of Bali Average Weight: Female: kg ( pounds) Male: kg ( pounds) Size: Tigers reach up to ten feet in length and weigh 400 to 575 pounds. Diet: All tigers are carnivorous [pigs, deer, antelope, buffalo and other] Cubs Per Litter: (Usually 2-3 cubs) Cubs are born blind and weigh 2-3 pounds. Lifespan: Tigers live for Years Other Information: Smallest of all 8 tiger subspecies. Conservation Status: Extinct since the late 1930's or early 1940's [The last Bali tiger to be shot was believed to be a female in The Bali tiger were extinct around the end of 1937] 3 THE BALI TIGER GROUP [PANTHERA TIGRIS BALICA]

4 MAIN TASKS Ground source heating & heat pumps Building services Calculations Energy Efficiency Green roofs and facades 4

5 ENERGY EFFICIENCY 5 Cold bridges Before After

6 6 ENERGY EFFICIENCY U-value

7 7 ENERGY EFFICIENCY

8 GROUND SOURCE HEATING & HEAT PUMPS AdvantagesDisadvantages Air to air - ensure the heating of an apartment - little expensive - easy to install - constitutes a partial heating - little efficient for cold climates Air to eau - characterized by a limited..cost - produce hot water - COP >3.5 - advised for the small apartments - little efficient for cold climates - create noises

9 AdvantagesDisadvantages Ground to water - very efficient for cold climates - simple system - successfull - big garden for horizontal sensors - extra cost for vertical sensors Water to water - very efficient for cold climates - expensive GROUND SOURCE HEATING & HEAT PUMPS

10 HEAT PUMP GROUND TO WATER Horizontal sensor Vertical sensor

11 VERTICAL SENSOR Losse : 45 kW Power of heat pump : 32 kW Choice of heat pump ground to water : - Vitocal 300-G, type BW/BWS : 6,2 à 35,2 kW - Coefficient of performance COP : 4,7 - Maximal temperature of departure : 65°C - Dimensions (Height x Width x Depth) : 970 x 600 x 1065 mm - Weight : 2 x 168 kg ( 35,2 kW) 11

12 INSTALLATION EXTERNALLY Number of geothermal probe : 10 Depth drilling on geothermal probe : 50 m Spacing between geothermal probes : 10 m

13 INSTALLATION INTERNALLY Low temperature radiators FARAL of cast aluminium : - warm fast - cool slowly - are rather little expensive Number of radiators : 88 Connecting between heat pump and radiators : pipes PER (Polyethylene) Number heat pump : 2

14 BUILDING SERVICES Passive Ventilation System Air-Tightness Ventilation system Water storage tank from rain water 14

15 Heat Exchanger(TitonHRV1Q) Comfort ventilation up to 300m3/h Minimum energy consumption Reducing carbon footprint Moist and hard air extracted Directly Less Noise (21dB) Higher efficient heat exchanger up to 95% Easy to maintain Property running cost is low Increasing property value 15 PASSIVE VENTILATION SYSTEM

16 Air-tight buildings waste less energy and cause co2 Vital to achieving passive build Air- Tightness is 0.5 air changes per 50pa Reduce maintains cost 20% saving of electricity bill VARIO Membrane(INTERAZUB) Stronger than polythene UV protected Reducing moisture 16 INTERNAL AIR-TIGHTNESS

17 Single Sided Ventilation Required Air flow-67cbm/h Helpful to improve indoor Air quality Zero energy consumption Low maintains Lower initial cost No noise like mechanical ventilation Less hygienic problem with duct 17 NATURAL VENTILATION

18 Avg. precipitation-25.74inch Collection of water gallon water/year Saving up to 50 % of water consumption Use for Toilets, washing, and land scalping NO Lime scale(less detergent required),kinder to plants Help to increase property value (eco-friendly) Storage capacity of tank 10,000 gallon Save water save life 18 RAIN WATER STORAGE TANK

19 GREEN ROOF 19

20 ENVIROMENTAL & FINANCIAL BENEFITS REDUCED HEATING REDUCED COOLING NATURAL HABITAT CREATION FILTER AIR AND RAINWATER SOUND INSULATION AGRICULTURAL SPACE ROOF LIFE SPAN REAL ESTATE VALUE REDUCED ENERGY USAGE BENEFITS 20

21 DISATVENTAGES DISATVANTAGE S COST STRUCTURA L STANDARTS MAINTENEANC E ADDITIONAL MASS STATIC LOADING 21

22 EXTENSIVE VS INTENSIVE MAINTENANC E VEGETATION SUBSTRATE LOAD COST 22 MINIMA L REGULAR Y UNDEMANDING DEMANDING 50 – 150 kg/m 2 >150 kg/m 2 SMALL BIG <10 cm >10 cm

23 EXTENSIVE ROOF STRUCTURE Sedum, small vegetation 8. Light mineral substrate E (thickness 8-10 cm) 7. Drainage mat / vegetative plate (thickness 20mm) 6. Distinctive layers of polyethylene film (thickness 0.2 mm) 5. Bituminous coating VEDAFLOR ® WS-I - Root penetration resistance second waterproof layer 4. Bituminous coating VEDAFLOR ® WS-U - root penetration resistance first waterproof layer 3. Rockwool 2x150 mm Rockwool Slab 100 mm 2. Vapour barrier VEDAGARD ® SK-PLUS 1. Roof deck

24 MAINTENANCE 24

25 GREEN FACADE LIVING WALL SYSTEM GREEN FACADES 25

26 LIVING GREEN WALL 26

27 27 DECISION

28 CALCULATION OF INVESTMENT AND RETURNS IN PASSIVE HOUSE AND RETROFIT PROJECTS Analysis of investment required: TOTAL INVESTIMENT ,46 FINANCING OF GOVERNMENT ,12 OWN CAPITAL ,63 BANK'S LOAN ,70 FINANCING OF JESSICA ,84 REAL INVESTMENT AT TIME ,42 We have hypothesized that: - the Government founds covers 15% of the total costs; - at travels start the clients capital must covers 10% of residual investment; - JESSICA covers 15% of the loan investment. Time: 20 years Present value is ,26

29 POSSIBLE SCENARIES 0%-10,00%-20,00% Q entire specific energy demand (for year) First scenary - pessimistic - Second scenary - average - Thirth scenary - optimistic - Current consumption (for average multifamily buildings)160 kwh / (m² a) Future consumption90 kwh / (m² a)81 kwh / (m² a)72 kwh / (m² a) Energy saving %31,25%38,13%45,00% Current costs ,30 Future costs , , ,09 Costs saving , , ,22 Payback method8,00 y7,08 y6,36 y

30 VALUE OF THE PROJECT First scenary - Pessimistic - Second scenary - Average - Thirth scenary - Optimistic - PAYBACK METHOD 8 years7 years6 years NET PRESENT VALUE 4.915, , ,62 ROI5,68%19,26%32,85% ROE4,68%15,88%27,09% For actualization of saving energy we have assumed that this doesnt finish at the end of the tenth year, therefore, for the last money return, we have utilized temporary costant return

31 BREACK EVEN POINT

32 POSITIVE EXTERNALITIES OF RETROFIT AND PASSIVE HOUSE + benefits of sustainability; + quality of life of the inhabitants; less poverty; lower costs for the government; + increased tourism.

33 THANK YOU FOR WATCHING! Questions and com ments 33


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