THE BACKGROUND OF “AGAM.”
The Birth of the company, Who is Chaim?
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THE BACKGROUND OF AGAM . The Birth of the company, Who is Chaim? 1 - - PowerPoint PPT Presentation
THE BACKGROUND OF AGAM . The Birth of the company, Who is Chaim? 1 Agam Greenhouse Energy Systems Ltd. VLHC (Ventilated Latent Heat Converter ) The company Agam Greenhouse Energy Systems Ltd was founded as a spin-of Agam Energy Systems
The Birth of the company, Who is Chaim?
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Agam Greenhouse Energy Systems Ltd. VLHC (Ventilated Latent Heat Converter )
a spin-of Agam Energy Systems in September 2009
April 2010
Ventilate Latent Heat Converter (VLHC) THE MAIN ADVANTAGES
Suitable for cold and mild climate conditions
Diseases Reduce spores population Reduce chemical use
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BUTRUTIS, ERVINIA. MORE COST OF THE CHEMIALS MIGHT BE 600Euro- 700- per 1000 SQM per a year. The price is for QUALITY yield.
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THE BUTYTIS DAMAGE.
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Tomato
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FLOWERS
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THE BUTRYTIS DAMAGE LOOK
The Cost of Chemical- The Quality-For Organic Vegetable.
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Energy Saving
humidity removal
energy consumption by- up to 60%
systems
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Wet air from greenhouse Salt brine Circulated air Hot water to radiator Water from radiator Hot water in Hot water out Hot brine Dry air Wet air from greenhouse Wet air from greenhouse Hot brine Circulated air Dry air Hot brine Warm & wet air Circulated air Dry air Hot brine Warm & wet air Circulated air Dry air Hot brine Warm & wet air Circulated air Dry air Hot brine Warm & wet air Circulated air Dry air Hot brine Warm & wet air Circulated air Dry air Warm & wet air Circulated air Dry air
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HIGH QUALITY COMPONENTS.
The Heat Exchanger.
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Components
Emphasizing on Quality and long life.
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The Metritz Quality.
Working whole season with the Brine.
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Energy: K- Values
0c/m2 (k values)
Interaction screen & VLHC (van Leer Tests)
consumption reduces to 44%) RH increase to 93%
85% and fuel consumption is elevated from 44% to 74% .
and elevate fuel consumption by 74/44=1.68 which is 68%.
75%-85% with a close screen. Energy saving is 75% as compare with glass house with screen opening and 60% as compared with glass house with close screen and high humidity.
VLHC energy consumption
1000m2 Greenhouse temp - (ΔT =18 ) R H = 85%
(by hot water) +2.5 kW of electricity to power VLHC
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The energy advantages by using the VLHC- Italy
Flowers pots greenhouse in north Italy April 2005
and hot water pipes heating in a glass greenhouse:
pipes = 5.6 W/ m2 * oC.
W/ m2 * oC. * Saving of 64%!
Comparison between 2 flower greenhouses in north Italy
thermal screen.
humidity control k= 9.17 W/ m2 * oC.
screen, one VLHC system keep 2,000 m2 greenhouse, 10 c higher than the ambient .
Nursery Greenhouse in the center of Israel
2009.
2009-2010.
Nursery greenhouse in Western Negev Israel
* Compare with the same greenhouse heated by hot air (sleeves.) * RH in VLHC greenhouse= 88%. * RH in hot air heated greenhouse= 98.4% (fog most of the night). * Energy saving 50%
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What They would like to achieve?
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VLHC heated at a rate of 40 kW elevate 2000
square meter glass house with screen 10C above
Outside / Inside GH Temperature Samplings with VLHC without central heating system working 22 / 23 April 2005
Inside GH Relative Humidity Samplings 22 /23 April 2005
Experimental test made in R&D Center in winter 2008- 2009 comparing Agam’s with hot-water pipe heating
plants greenhouses.
dehumidifying system.
along the plants.
same conditions.
Energy consumption and saving between the two greenhouses
Agam System- Energy saving by % compare with Hot- Water Heating
20 40 60 80 100 Date Energy Saving by % Saving % Saving % 52 78 54 56 61 60.2 16 20 23 24 27 Aver
Energy Consumption in Agam Greenhouse and Hot Water Greenhouse
5 10 15 Date Energy Consumption by W/m2*0C Agam H-W Agam 3.45 1.08 4.25 4.36 4.52 3.53 H-W 7.16 4.92 9.76 9.97 11.68 8.7 16 20 23 24 27 Avera
Compare Relative humidity between the two greenhouses
72 76 80 84 88 18/01/2009 23/01/2009 28/01/2009 02/02/2009 07/02/2009 12/02/2009 17/02/2009 22/02/2009 27/02/2009 04/03/2009 09/03/2009 Date %RH Agam Hot-WaterAverage night %RH on January to March 2009
78 80 82 84 86 88 90 92 94 07/01/2009 17/01/2009 27/01/2009 06/02/2009 16/02/2009 26/02/2009 08/03/2009 18/03/2009 Date %RH Agam Hot-Water
The VLHC is effective new technology to reduces humidity and heating the greenhouses in cold and mild climate.
with fresh air inflow.
tomatoes greenhouses, 1500 m2 of flowers greenhouses.
with inflated PE roof 2 W/ m2 oC and 5.5 W/ m2 oC, with one layer roof.
thermal screen, it keep temperature 18 oC above ambient and energy saving of 60%-80%.
spraying against other diseases.
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When are we able to use less units?
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