De praktische toepassing van de herziening van norm NBN EN 12464-1 'Verlichti...
Zero emission indoor climate control - Menerga
1. 26.09.2012
Welkom
Bienvenu
Zero Emission Indoor Climate Control :
Dream or Reality ?
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2. 26.09.2012
MENERGA – What does it stands for ?
m
minimum energy application
MENERGA fields of application
Parliament / Budapest
Privat swimming pool hall / Waiblingen-Neustadt
Zoo Hellabrunn / Munich
Premium sports studio / Stuttgart
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Fields of competence
_ Process and
_ Customer service climate cooling
_ Air-conditioning
and climate-control _ Chilled water units
technology
_ Air conditioning in _ Heat recovery from
swimming pool halls water
MENERGA and research organisations
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MENERGA KLIMA PLUS
System concepts that save resources and are
environmentally friendly
Efficient, resource saving operation thanks to the
highest degree of efficiency
Maximum reduction of CO2 emissions
Technologies modelled on nature
Products and production
Manufacturer of complete systems
Experience in research projects
All knowledge's consolidated
Flexible fabrication
Experience in practice
Integrated control and regulation system
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Products and innovations
1980 energy saving swimming pool hall air conditioning
1985 regenerative air conditioning with heat recovery
with more than 90 % efficiency
1991 „Adiabatic“ – cooling without electric power
Evaporation cooling systems
Indirect Evaporation Cooling
Humidification before Heat Recovery
Return air
Exhaust air
Supply Air Outside Air
Indirect Evaporation Cooling
Humidification during Heat Recovery
Direct Evaporation Cooling Exchaust air
Return air
Outside Air Supply Air
Outside Air
Supply Air
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Products and innovations
1980 energy saving swimming pool hall air conditioning
1985 regenerative air conditioning with heat recovery
with more than 90 % efficiency
1991 „Adiabatic“ – cooling without electric power
1994 Implementation of optimum efficiency motor
with integral frequency controller
1999 hybride compact – chilled water unit
with integrated compression refrigeration plant
2004 energy efficient compressor
with integrated control of power output
2007 web based Integrated control and regulation system
of air conditioning systems
2008
Zero Emission Indoor Climate Control
Dream or reality ?
Why Climate Control?
For economic reasons
employees are 10 to 15 % more efficient in comfort
conditions
For Company Image reasons
To be attractive for hard to find emplyee profiles.
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What is Climate Control?
Climate Control = more than cooling
Climate Control = also dehumidification
Dry air is very comfortable
Temperature may rise 2 – 3 K at dry
circumstances with same comfort awareness
Higher room temperature
Higher cooling capacity using sustainable
energy sources.
Dehumidification by
cooling and condensation
Condensation on cold surfaces or water drops
5% 10% 15% 20% 30%
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Cooling coil with chilled water 40%
40 50%
60%
DX cooling coil
35
OA
70%
Tem per atur [ °C ]
80%
30
90%
100%
Cold water sprinkler 25
20 SA
For the dehumidification of air, surface temperatures
below the dew point are needed
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0 5 10 15 20
Wassergehalt [gW /kgtr L]
cooling coil & LPHW reheater
The production of the cold water is produced by
e.g. through a chiller
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Sorption mechanism
Adsorption Absorption
vapour
heat removal
solid liquid
Desorption
(regeneration)
heat supply
solid
liquid
Dehumidification rotor (adsorption)
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• typical adsorption material LiCl, silica gel or molecular sieve
• regeneration temperatures 70°C up to 120°C !!
• due to the mechanical rotors, immediate regeneration is necessary
• cooling of the adsorption process is not possible EA
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5% 10% 15% 20% EA 30%
• Low primary energy ratio (thermal COP) of 0,7 to 0,8 1 40%
40
Heater of the 4 50%
regeneration air
Humidifier 60%
35
EA 5 4 3 RA 70%
Tem per atur [ °C ]
OA
80%
30
90%
RA 100%
Humidifier 25 2
20 SA 3
OA 1 2 SA
15
Dehumidification rotor Heat exchanger 0 5 10 15 20
Wassergehalt [gW /kgtr L]
DEC-plant with dehumidification
rotor
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Dehumidification by absorption (liquid)
• absorption material LiCl-brine
+ regeneration temperatures only 50°C to 70°C
5% 10% 15% 20% 30%
45 6 7
EA
40%
7
5 RA
40 50%
3 1
FA
4 SA 2
60%
35
70%
Temperatur [°C]
3 1 80%
30 2
90%
5 6 100%
1 2 Absorption
25
2 3 Temperature increase of the fan
3 4 Indirect evaporation cooling
20 4
4 5 Survey of heat- and humidity load
5 6 Indirect evaporation cooling
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0 5 10 15 20 1 7 Desorption
Wassergehalt [gW /kgtr L]
+ discontinuous absorption and regeneration possible
+ unlimited loss-free storage of regenerated brine (5 x more energy stored in brine than water)
+ cooling of the absorption process is possible
+ high primary energy ratio (thermal COP) of 1,4 to 1,6
Sources of low temperature heat
Process heat
Heat energy
Solar energy
District heating
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Domaines of application
Passive Buildings
Zero Emission Buildings or concepts
Dehumidification of Swimming Pools
Air volumes 1.200 to 14.400 m³/h
Use of Renewable Energy at low temperature (55 – 70°)
Use of waste energy from other (industrial) processes
Use of rain water or lake water is a possibility
Zero Emission Indoor Climate Control :
It’s no dream anymore
It’s real !!
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