Energy saving options for the cultivation of chrysanthemum

January 15, 2016
Energy saving options for the cultivation of chrysanthemum

What energy-saving options are most suitable to be applied at a the cultivation of chrysanthemum? Together with DLV Plant, Wageningen UR greenhouse horticulture has carried out two surveys commissioned by the program 'Kas als Energiebron': one inventory for saving on electricity and one inventory for saving on heat.

Many measures can reduce the electricity needs for lighting. The greatest effect is obtained by diffuse glass with anti-reflection coatings. This causes a better use of the . According to calculations, then almost 15% less lamp light is needed for the same winter production, while this glass type gives also in the summer period a few percentages more stem weight. The latest LED lamps can give 50% more PAR light per kWh electricity than HPS lamps. If, for example, half of the HPS lamps will be replaced, the electricity bill will sharply be reduced. With a total of 22 measures the demand can be reduced with even more than 50%. Some of these measures are at the expense of the winter production or require such a high investment that their cost effectiveness is questionable.

Also in the area of heat savings, many steps forward can still be made. The company Arcadia has already shown that dosing outside air in combination with an extra energy screen can save over 8 m3/m2.year of natural gas equivalents. For this, the humidity and heat pipe settings should also be adjusted. We can also think of other measures, such as the use of drip irrigation instead of sprinkling, which causes that the crop does not have to be dried with extra heat. Cooling and dehumidication with air handling units is also an interesting measure. It assures a better summer quality and in addition, the harvested heat can be used to heat the greenhouse with aquifers and a heat pump in winter. At a high gas price and a low price this is a cost effective option, so that the 'chrysanthemum greenhouse without gas' comes within range. We only have to find an alternative for steam to disinfect the soil.

Explore further: LEDs shine in bedding plant production study

Related Stories

LEDs shine in bedding plant production study

July 21, 2014

Growers of annual bedding plant seedlings or plugs work to produce compact, fully rooted transplants with a large stem diameter and high root dry mass—qualities that make seedlings less susceptible to damage during shipping ...

Keeping cool using the summer heat

January 23, 2009

( -- While most Australians are taking care to shield themselves from the harsh summer heat, scientists from the CSIRO Energy Transformed Flagship are working on ways to harness the sun’s warmth to cool our ...

Tomatoes with extra vitamin C via LED lamps

May 9, 2013

( —Tomatoes can contain more vitamin C if they are exposed to extra light from LED lamps while growing on the plant. This has been proven by research by Wageningen UR Greenhouse Horticulture in collaboration with ...

Research finds long term effect of natural gas leakage

December 2, 2015

As natural gas production increases around the nation, new research from the University of Colorado Denver shows that it can have a similar impact on climate change as coal if it's allowed to leak while producing electricity.

Recommended for you

A not-quite-random walk demystifies the algorithm

December 15, 2017

The algorithm is having a cultural moment. Originally a math and computer science term, algorithms are now used to account for everything from military drone strikes and financial market forecasts to Google search results.

FCC votes along party lines to end 'net neutrality' (Update)

December 14, 2017

The Federal Communications Commission repealed the Obama-era "net neutrality" rules Thursday, giving internet service providers like Verizon, Comcast and AT&T a free hand to slow or block websites and apps as they see fit ...

US faces moment of truth on 'net neutrality'

December 14, 2017

The acrimonious battle over "net neutrality" in America comes to a head Thursday with a US agency set to vote to roll back rules enacted two years earlier aimed at preventing a "two-speed" internet.

The wet road to fast and stable batteries

December 14, 2017

An international team of scientists—including several researchers from the U.S. Department of Energy's (DOE) Argonne National Laboratory—has discovered an anode battery material with superfast charging and stable operation ...

1 comment

Adjust slider to filter visible comments by rank

Display comments: newest first

not rated yet Jan 15, 2016
Have you attempted microwaving the soil in batches or using a solar kiln type setup to heat the soil above a set threshold for the same purpose?

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.