important to closely monitor the correct water temperatures. In winter, the cooling water can be set slightly higher (e.g. 8 °C) and in sum- mer, the heating water set slightly lower (e.g. 60 °C). It is often also possible to optimise the climate settings for cooling and heating.


• Heating and cooling: The greatest opportuni- ties to save energy are offered by combined heating and cooling solutions such as geother- mal energy combined with a low temperature heating and heat pumps or a cooling system with heat recovery.


• Fan: Apart from using a frequency controller, there are only limited options to reduce the energy used by the fan, such as preventing unnecessary air resistance in soiled filters, soiled cooling coils, too small overpressure openings etc.


• Lighting: Despite fluorescent lighting only accounting for a small proportion of the electricity consumption, savings of roughly a half can be achieved by switching to LED lighting. Replace the lamps first in the corridor, for example, and then in the growing rooms when the fluorescent lights are due for replacement.


• Steam humidity: Using steam humidification only makes sense if humidification and heating is necessary (e.g. in winter). If humidification and cooling is necessary (e.g. in summer and during cooling/pinheading) water humidification is a better option. However, water humidification only works well when air is not too cold, so using water to humidify the floors/ceilings in the growing room at intervals is often applied.





Fan kWh 116 18%


Lighting


growing room kWh 52 8%


Cooling kWh 477 74%


Cook out m3 130 55%


Heating m3 106 45% 74%


Electricity in kWh/cropping cycle/100 m2 (average of 5 farms)


Gas in m3/cropping cycle/100 m2 (average of 5 farms)


Steam humidifi cation MJ 7


0%


Fan MJ 1.042 7%


Lighting growing room MJ 467 3%


Primary energy electricity MJ 5.798 41%


Primary energy gas MJ 8.308 59%


Heating MJ 3.713 26%


Cook out MJ 4.589 33%


Cooling MJ 4.289 31%


Primary energy in MJ/cropping cycle/100 m2 (average of 5 farms)


Total primary energy in MJ/cropping cycle/100 m2 (average of 5 farms)


MUSHROOM BUSINESS 17


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44