• Like

Loading…

Flash Player 9 (or above) is needed to view presentations.
We have detected that you do not have it on your computer. To install it, go here.

Uploaded on

 

  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Be the first to comment
    Be the first to like this
No Downloads

Views

Total Views
141
On Slideshare
0
From Embeds
0
Number of Embeds
0

Actions

Shares
Downloads
1
Comments
0
Likes
0

Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
    No notes for slide

Transcript

  • 1. X sorb eco technology b.v. Solar & Waste Energy Sorption Storage & Space Heating Solutions
  • 2. Presentation of Xsorb eco-technologies rev 2 15 October 2009 by A. Minkkinen Energy Store Ventilation Humidity Adsorption Solar De-sorption Drying X sorb eco-technology Heat Solar Energy In-situ
  • 3. Presentation of Xsorb eco-technologies rev 2 15 October 2009 by A. Minkkinen Energy Box Ventilation Humidity Adsorption Recovered Heat De-sorption Drying X sorb eco-technology Heat Industrial & Bio Waste Energy Ex-situ
  • 4. Presentation of Xsorb eco-technologies rev 2 15 October 2009 by A. Minkkinen Winter Winter Summer Solar Energy Heating / Storage Paradox 3.0 2.0 1.0 MWh/a Excess Solar Direct Solar Contribution EnergyStore Space heating demand curve Solar irradiation supply curve
  • 5. Humid Heat Energy
    • The sources are many :
    • Intake of outside humid air
    • Cooking generated boil off steam
    • Bathroom ventilation
    • Clothes washing and drying generated vent streams
    • Purposely generated humidity from humidifiers
    • Human, animal and green plant respiration
    • Liberated gas from candle wax combustion
    • also
    • Combustion flue gas from water heaters
    Presentation of Xsorb eco-technologies rev 2 15 October 2009 by A. Minkkinen
  • 6. Presentation of Xsorb eco-technologies rev 2 15 October 2009 by A. Minkkinen Humid Heat Recovery Condensation on a heat transfer surface Recovers heat of water condensation at ever lowering temperatures Adsorption on a solid surface Recovers heat of water adsorption at a useful temperature
  • 7. Presentation of Xsorb eco-technologies rev 2 15 October 2009 by A. Minkkinen Humid Heat Energy How much heat when condensed?? 2 300 kJ / kg of water Or 2.3 MJ / kg
  • 8. Presentation of Xsorb eco-technologies rev 2 15 October 2009 by A. Minkkinen Adsorption Heat Energy How much heat when adsorbed ??? Heat of water condensation 2.3 MJ/kg together with heat of wetting from 0.5 to1.7 MJ/kg (wet to dry) Average heat of water adsorption can be 3.4 MJ / kg of water over cycle
  • 9. Presentation of Xsorb eco-technologies rev 2 15 October 2009 by A. Minkkinen Space Heating…. Xsorb with Solar Contribution Humid stale room air Warm fresh air from every room Heat Exchanger Floor heat Kitchen Expelled air Fresh air Shower
  • 10. Presentation of Xsorb eco-technologies rev 2 15 October 2009 by A. Minkkinen Xsorb Residential Air Heating Process Higher duty dry PFHE Warm fresh air to rooms Cold fresh air Expelled stale room air 21 C & 60 % rH 33 C 0 C 28 C Dry cool Ventilated air 5 C Kitchen Shower EnergyStore 28 C Laundry
  • 11. Presentation of Xsorb eco-technologies rev 2 15 October 2009 by A. Minkkinen 10 20 Heat Duty kW Heat Exchange Curves 0 30 0 Dry PFHE 5 degree C approach Xsorb Air Heating 40 EnergyStore Adsorption heat Ventilated humid room temperature Fresh warm air 5 degree C approach Degree C
  • 12. Presentation of Xsorb eco-technologies rev 2 15 October 2009 by A. Minkkinen Basic Xsorb with Solar Air Heating Process PFHE Warm fresh air to rooms 36 C 30 C Kitchen Shower EnergyStore 30 C 30 - 40 C Laundry Rooms
  • 13. Presentation of Xsorb eco-technologies rev 2 15 October 2009 by A. Minkkinen EnergyStore Ideal Solar Storage Battery Concept EnergyStore “ Storage Battery” Moist air Solar Panel “ Charger” Hot water Hot air Summer air
  • 14. Presentation of Xsorb eco-technologies rev 2 15 October 2009 by A. Minkkinen Example Seasonal energy consumption of a super insulated 150 m 2 house built to 2015 EU recommended residential space heating duty 15 kWh/m 2 equivalent to 55 MJ /m 2 thus: 55 MJ/m 2 x 150 m 2 = 8 250 MJ 8.3 GJ
  • 15. Presentation of Xsorb eco-technologies rev 2 15 October 2009 by A. Minkkinen Solar Contribution Then 0.8 x 8.3 GJ = 6.6 GJ needs to be provided by the EnergyStore solar battery If 20 % is considered as the direct solar fraction
  • 16. Presentation of Xsorb eco-technologies rev 2 15 October 2009 by A. Minkkinen
    • Based on EU ventilation standard of 50 m 3 /h/person
    • @ inside comfort of 50% humidity & 20 degree C
    • A house with 4 persons living inside ventilates stale humid air with roughly 4 200 kg of water vapor in a typical heating season
    • with only 50 % recovery 2 100 kg of water is adsorbed
    • The adsorption heat recovered to useful house
    • space heating @ 3.1 MJ/kg
    • is 2 100 kg x 3.1 MJ/kg = almost 6 600 MJ
    • and volume of adsorbent required would be
    • 6 600 MJ / 760 MJ/m 3 around 8.7 m 3
    Example Ventilation Humid Heat Recovery
  • 17. Presentation of Xsorb eco-technologies rev 2 15 October 2009 by A. Minkkinen Example Conclusion Requires less than 2 % of the house volume 150 m 2 house volume with 3 meter high ceiling 150 m 2 X 3 m = 450 m 3 thus: 8.7 m 3 / 450 m 3 = 0.0193
  • 18. Presentation of Xsorb eco-technologies rev 2 15 October 2009 by A. Minkkinen
    • The Ex-Situ Option ;
    • Uses higher temperature waste heat from
    • an electric power plant or bio-gas fired generator
    • This becomes a pipe-less “district heating” concept; the adsorbent is the energy carrier
    • dried adsorbent is delivered to customers once, twice or three times during heating season
    • The power plant becomes “greener”
    Regeneration Options
  • 19. Presentation of Xsorb eco-technologies rev 2 15 October 2009 by A. Minkkinen
    • High temperature regeneration yields drier adsorbent thus higher energy store capacity
    • Allows the use of higher exothermic heat performance adsorbents such as zeolites
    • Allows the energy store volume to be very much smaller
    • Residential application becomes simpler at lower investment cost
    • Allows the potential Xsorb market to also include retrofit to existing homes
    Ex-Situ Regeneration Many Advantages
  • 20. Presentation of Xsorb eco-technologies rev 2 15 October 2009 by A. Minkkinen
    • Solar energy collected in situ from roof top panels
    • Warm summer air
    • Heat recovered from all hot water drains
    • Any other waste heat available in situ
    • Heat generated by non-fossil energy sources
    In-Situ Recharging The most ecological option uses:
  • 21. Presentation of Xsorb eco-technologies rev 2 15 October 2009 by A. Minkkinen
    • Heat energy
    • heat adsorbent bed to around 40 °C
    • heat carrier gas to between 50 to 70 °C
    • This slowly evaporates water from adsorbent
    • Carrier gas
    • heated outside air
    • heated inside dry air
    • This carries water vapor from adsorbent
    Recharging Requirements
  • 22. Presentation of Xsorb eco-technologies rev 2 15 October 2009 by A. Minkkinen
    • Cost effective in-situ use of solar energy
    • summer use gets fully valorized
    • winter use in perfect harmony with EnergyStore
    • good combination with hybrid air & water cooled PV solar technologies
    • Ideal for newly built “green” buildings
    • Nearly complete elimination
    • of fossil fuel consumption and CO 2 emissions in space heating
    Conclusion