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Let’s start from ourselves. Why do we save energy?. The answer is the only one: …..For ourselves and indirectly? For the Earth (greenhouse effect?) For fulfillling UE norms and requirements(3*20) For our countryside (Czorsztyn) For money For the future generations
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Why do we save energy? The answer is the only one:…..For ourselves and indirectly? • For the Earth (greenhouse effect?) • For fulfillling UE norms and requirements(3*20) • For our countryside (Czorsztyn) • For money • For the future generations • Because of our own reasons
Energy at home and at work is consumed for: • cooking • lighting,washing,TV, computers (electricity) • Warm water • heating • Air conditioning • The machine drive • Energy for industrial technologies (e.g. biscuits covered with chocolate)
To diminish the consumption of energy while cooking You should use • Inductive board instead of ceramic one • Pressure cooker • Boil as much water as you really need Doyou know how many times you should pick up 1 kg of sugar for the height of 1 m to have a mug of hot tea? Answer: about _20_ thousand times Remember! Boil as much water as you really need!
To diminish the consumption of energy In lighting The bulb(wolfram)- only 15% energy is sent as the visible radiation, the rest is the heat waste You should use 1.Halogen, mercury, glow tubes –savings from 50 to 80% of electricity 2. Switchers with sensors 3. The natural light
To diminish the consumption of energy Washing machines and fridges You should • Wash in the low temperatures • Use the warm water instead of the heater • Use the full capacity of the washing machine • defrost the fridge • Close the fridgeuse the washing machines and fridges of energy saving types A
We save the running water • - Perlator (the mixture of water and air) e.g. The tap uses 10-15 dm3/min, and perlator 5-8 dm3/min • One handled tap: 25% of savings • Thermostatic tap: 50% of savings • Untouched tap: 60% of savings • Additionally: The nocturnal limits for the circulation(the clock of circulating pump): 5% Thermostatic valves: 10% Thermostatic valves + circulating pump: 15% Insulating of the pipes with the running water: 5% Water meters Shaving, toothbrushing Why does the running water have the temperature of 60 Centigrade?
The double wall made of glass Heat receiver Pipe made of copper The hot steam goes up and the cool steam condenses on the bottom of the pipe
The amount of the solar radiation The collector’s effectivness Months of the year
6 2 4 8 1 7 3 5 The typical set of collector for the warm water 4-6 bar strych
To diminish the consumption of energy in HEATING: • Thermostatic valves (they lower the temperature about 1 Centigrade =6% less energy) • The weather regulator • The weekly/daily regulator • Methodology of airing the flats • check the activity of ovens (heat curve) use
Supply return The heat curve 90/70 na grzejniku w pokoju The temperature of heated water The temperature outside
Within the year we can save…?.. If… Let’s count on ourselvesif we use properly: • Running water 10% (shaving,tooth, perlator 12 zł) 6l/day=2m3/year=1GJ/year= 50kg C=100kgCO2 • Airing 4% 4%*50GJ/year= 2GJ/year= 100 kg C= 200kgCO2 • Thermostat 6% (jumper) 6%*50GJ/year= 3GJ/year = 150 kg C = 300kgCO2 • tea 0,2l/tea*10=2l/day=1GJ/year=50kgC=100kgCO2 The result: 7GJ/year=350kgC=700kgCO2
Go on counting The efficiency of Polish power stations 33% statistically • 7GJ*50 zł = 350 zł savings, so we buy: Bulbs 10 items * 35 zł = 350 zł 80W*10 items= 800W*2000h/year=1,6MWh (800 zł) =6GJ/year 6GJ*3 (electricity) = 18 GJ = 900 kgC = 1800 kgCO2 PLN=800zł-350zł=450zł 1 person = 25 GJ/year = 1250 kgC = 2,5MgCO2 How many people are there in the room? 100 people = 2500 GJ = 125MgC=250MgCO2=45000 PLN 2500 GJ = heating of 2 schools (after insulating) ton
Insulating of the roof 12 % Intake ventialtors 5% Walls 15% Central heating – 12% Thermal centre 10% Savings altogether are about 50% At present energy savings are 0,9 GJ/m2 (300 kWh/m2/year) In future no more than 0,5 GJ/m2 Costs: 90.000 zł/2 = 45.000 zł Cost: 1.000.000 zł
The flow The relative humidity
Topics for discussion • cogeneration • The thermal pump • ESCO agreements • white, green, yellow, red certificates • The trade with CO2 emissions • The thermomodernisation programs
The presentation has been made for the FOCUS project Based on the materials retrieved from MrA. JURKIEWICZ and photos taken during the trip to the nearly passive house MARCH 2010 IO