Dutch rose greenhouse Marjoland structurally clothe in knowledge development and instruments that help to bring about more , better , more efficiently , and clean . In 2023 , the caller commissioned seven CRUM CO2 measure from Van Dijk heating , which admit custom dosing in each cultivation department . " That ’s really suitable when you have different greenhouses with different wasting disease characteristics , " says polish coach Erwin van Adrichem . " Since we measure the supply in kilogram CO2 per section , the control is more accurate . Now we really see what is consumed in each greenhouse . "
Most nursery farms distribute their CO2 through one main connection ( CO2 set ) , possibly in combination with a control valve per department . Such a valve is control during dose base on the measured CO2 denseness in the culture space , express in ppm . Until last year , this also use to nursery Marjoland in Waddinxveen , The Netherlands .
CRUM - meter Marjoland
Large variation"Such a distribution system should work well in theory but still has its limitations , " says general manager Daniël van den Nouweland . " Apart from the fact that CO2 sensor in greenhouses are not always very accurate , there are several factors that can make precise dosing difficult . For model , particularly on large farm with long CO2 statistical distribution pipe , you have to share with a decomposition in air pressure . In accession , there are sometimes declamatory differences between the greenhouses and the greenhouse layout , and last but not least , there are plants of vary diversity and age . In short , we know very well how many kilogram of CO2 went into our greenhouses , but only approximately how it was stagger among the section . The measured values alter well . "
Cost price gets higherInaccuracy need not be a problem as long as CO2 is gaudy and wide uncommitted , so you could dose it liberally . However , that is not what the future holds . The transition to fogy - costless vigour and the pricing of CO2 emissions will make horticultural companies dependent on CO2 sources other than natural gas and force them to dose more efficiently .
" We are sorting for that now , " continues cultivation specialist Erwin van Adrichem . " In the 2nd half of 2023 , we installed seven CRUM CO2 meters from Van Dijk heat . These sit right in front of the CO2 set ; one in front of the principal connection and two on either side of each of our three greenhouses . This allows us to see exactly how many kilogram of CO2 is going into the department . In combining with the concentration measurements in the departments and an update of our clime dominance software package , we can now drug much more accurately . "
Meaningful investment"Actually , we are now doing what we should have always been doing , " avant-garde den Nouweland summarizes . " I can say from the feedback from our cultivation people that the CRUM ’s are a worthwhile investment . you could see that in the data , by the means . The measured values are more close to the aim value . A software upgrade of the climate computer is not quite perfect yet , and that too will do its part . We do n’t necessarily ask to take less CO2 as long as it get to the correct place in the good quantities and at the veracious times . Thanks to the CRUM CO2 meter from Van Dijk heating and the new software from Hoogendoorn Growth Management , we have assume another tone forward . If you compare it with all the other investments in the linguistic context of energy rescue and sustainability , it is only a small stair , but you have to take it once . "
oor meer informatie : Van Dijk heatingwww.vandijkheating.com
