ErfGoed ’s Airflow system tender opportunities for muscularity saving as well as achieving a importantly low temperature between the crops . The latter benefit growth and tone . This is evident from measure and mental test carried out with the Airflow system lately . Although the result are irrefutable and the scheme appears promising , there are still many question , and the company says trace - up research is needed .
The raw Airflow system consists of an ebb - and - flow story , which is hot up and cooled through hosiery under the storey . In addition , strain is introduced through statistical distribution tubes in the floor to fire up or cool off the breeze around the crop . These tubes are conform to with fix , allowing the air to pass out through the base , which has a holey level . The combination of the heating and cooling underground and the intromission of air makes the scheme unique .
ErfGoed carried out panoptic tribulation of the new system recently . This took place at its situation in Moerkapelle , in a crop of Sarcococca . Adviser Leo de Rijke of De Rijke Techniek was closely involved and dribble out various measurements and analyses . " We mensurate both tidy sum , base , and room temperatures , " he says . " We did this in a department with an innovative floor and in a ' normal ' section , with a steady ebb and flow base from ErfGoed . All other condition being equal , the append value of the Airflow flooring was very clearly seeable . "
attain better consumption of dispirited - degree heatPart of the study involved function the effects of heating through the Airflow floor . Here , via the hoses , low - level heat of 35 point was provide . Air was also usher in into the floor , which was distributed through the floor via a special system . " We saw that by introduce the air , we were capable to cool down the abject - grade heat back to a temperature of 22 degrees . Without comment from the breeze , the replication temperature was 27 degrees . Specifically , this means that you could use the humbled - grade oestrus much good this way . In other word , with the Airflow arrangement , you get more efficiency from scurvy - grade heat . That has everything to do with the fact that the acquittance mental ability of the floor is increase by introduce the atmosphere . "
optimise efficiencyAccording to De Rijke , this fact offers chance for energy saving and can be of interest to entrepreneurs work with geothermal heating plant or heat pumps , among others . " We have now introduced the low-down - level high temperature via the boiler for the test , but you could , of course , also use geothermic heat or heat from a heat pump . Then , as an entrepreneur , you could either choose to cool down the hotness back as far as possible or lower the supply temperature . That way , you necessitate less energy to keep your greenhouse at the right-hand temperature . How much exactly , we postulate to find out . But this does lead in a good efficiency of a heat pump or geothermic heat energy source . "
Cooler on live daysIn improver , during the past period , extensive tests were acquit out on cooling the Airflow floor via the hosiery in combining with introducing inhuman atmosphere . This seek to have a clean tot up value on live days , indicates the adviser . " We saw that the temperature between the craw in the surgical incision with the Airflow scheme was , on average , about five degrees lower on these days than in the section with the regular ErfGoedVloer . This is due to the jazz group of introducing inhuman water through the hoses and cold air and the fact that you bring the cold exactly where you want it . "
The gloomy temperature has a clear add time value for crop increase , according to Cor Bremmer , Commercial Director at ErfGoed . " A temperature between 20 and 30 degrees is most optimal for crop in terms of growth . The RH went up because the ironic airflow absorbed moisture from the floor . And this make the stoma unfastened , which promotes photosynthesis . In addition , airwave movement is beneficial for plant growth , and we saw that the microclimate around the works improve . "
For more data : ErfGoedBredeweg 592751 GH Moerkapellewww.erfgoed.com
