Green house


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Group 4 project on building a greenhouse at RCNUWC

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Green house

  1. 1. Does RCNUWC wants to<br /> ¤ live up the Ecovillage dream?<br /> ¤ discourage factory farming?<br /> ¤ encourage subsistence farming?<br />If YES....<br />Then Munty, Yasas and Modestas presents....<br />
  2. 2. The Greenhouse<br />
  3. 3. How does the green house work?<br />The sun radiation (infrared, ultraviolet and visible light) goes inside the green house<br />Reflection from the surface<br />Infrared does not escape<br />Increases the temperature<br />moisture<br />Plants can be grown<br />
  4. 4. What could be grown in the greenhouse?<br />Depends on the temperature, humidity and soil fertility<br />Temperature: 25 – 30 °C<br />C4 plants (high daylight temperatures and humidity)<br />Cucumbers, tomatoes, carrots<br />
  5. 5. What is the area of a greenhouse?<br />Acknowledging that:<br /><ul><li> vegetation of cucumber, tomato and salad plants takes 60 days
  6. 6. harvest can be taken 5 times per year
  7. 7. 40 kg of vegetables are used to prepare food by Kantina
  8. 8. total mass of required vegetables per year would be 14,400 kg
  9. 9. each harvest is expected to produce 2,880 kg
  10. 10. mass yield of tomatoes and cucumbers approximately are 10 kg*m-2
  11. 11. effective area of the greenhouse is 2888/10 = 300 m2
  12. 12. additional area = 100 m2 (for paths, equipment, drainage)
  13. 13. total area = 400 m2</li></li></ul><li>The Location For A Green House <br />We did a research around the school premises to find a suitable place to establish the green house.<br />
  14. 14. Things we considered <br />The size of the place<br />Does it have the access to resources (water, transport and electricity)<br />Ownership of the land<br />
  15. 15.
  16. 16. Is there enough space?<br />Estimated size for the Green house is 400 m².<br />The size of the selected place is 2500 m²<br />we have enough space in that place to build the green house and to do other projects like compost station, irrigation, etc <br />
  17. 17. Energy for the green house <br />
  18. 18. Energy for the green house<br />A Micro-hydro power station.<br />Energy from falling water. <br />Used to light the green house  and provide suitable temperatures for plant growth.<br />The  micro-hydro power station produces  from 5kW to 100kW which is enough.<br />Summer climate dries waterfalls<br />During the summer the green house relies on heat and light produced by sun radiation<br />
  19. 19. The places to establish the power plant.<br />The little water falls around the campus.<br />There is quite big one in front of the Haugland<br />
  20. 20. Efficiency of the power plant <br />The green house uses an approximation of 30kw for 2500 hours<br />Power plant produces a considerable amount of greenhouse's heat and electrical needs. <br />This is about a third of the power produced by the small scale hydro-power station. The power station is very efficient in this case.<br />
  21. 21. What is the price of the Green House?<br /><ul><li>Price per 1 m2 is 890 NOK
  22. 22. Price per 400 m2 is 350,000 NOK</li></ul>This fantastic offer includes modern irrigation and light systems.<br />
  23. 23. +and-<br />-<br /><ul><li>Expensive
  24. 24. High energy consumption
  25. 25. Imported vegetables are cheap and edible
  26. 26. Additional projects (HE, compost)</li></ul>+<br />Fresh vegetables<br />Pioneering amongst other campuses<br />Eco awareness<br />Self sufficiency <br />Green house EAC<br />