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Let’s start from ourselves
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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
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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)
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while cooking
- 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
You should use
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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 sensors3. The natural light
To diminish the consumption of energy
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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
To diminish the consumption of energy
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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 metersShaving, toothbrushing
Why does the running water have the temperature of 60 Centigrade?
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Heat receiver
Pipe made of copper
The double wall made of glass
The hot steam goes up and the cool steam
condenses on the bottom of the pipe
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The collector’s effectivness
Months of the year
The amount of the solar radiation
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The typical set of collector for the warm water
13
2
4
6
75
8strychstrych
4-6 bar4-6 bar
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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)
To diminish the consumption of energy
use
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Krzywa grzewcza 90/70
0
10
20
30
40
50
60
70
80
90
100
12 10 8 6 4 2 0 -2 -4 -6 -8 -10
-12
-14
-16
-18
-20
temperatura zewnętrzna
tem
per
atu
ra w
od
y g
rzew
czej
zasilanie powrót
na grzejniku w pokoju
The heat curve 90/70
Supply return
The temperature outside
The temperature of heated water
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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
Within the year we can save…?.. If…
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Go on counting
• 7GJ*50 zł = 350 zł savings, so we buy:Bulbs 10 items * 35 zł = 350 zł80W*10 items= 800W*2000h/year=1,6MWh (800 zł)
=6GJ/year6GJ*3 (electricity) = 18 GJ = 900 kgC = 1800 kgCO2PLN=800zł-350zł=450zł
1 person = 25 GJ/year = 1250 kgC = 2,5MgCO2How many people are there in the room? 100 people = 2500 GJ = 125MgC=250MgCO2=45000 PLN2500 GJ = heating of 2 schools (after insulating)
statistically
The efficiency of Polish power stations 33%
ton
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Insulating of the roof 12 %
Walls 15%
Central heating – 12%
Intake ventialtors 5%
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
Thermal centre 10%
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Intake ventilator
•
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The relative humidity
The flow
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Topics for discussion
• cogeneration
• The thermal pump
• ESCO agreements
• white, green, yellow, red certificates
• The trade with CO2 emissions
• The thermomodernisation programs
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The presentation has been made for the FOCUS projectBased on the materials retrieved from MrA. JURKIEWICZ and photos taken during the trip to the nearly passive house
MARCH 2010IO