“This is the first time that LED lighting has been installed to guarantee the anniversary of the production of orchid varieties.†Arjan de Hoog, Co-director, De Hoog Orchids introduced.
background
De Hoog Orchids is a family business that has been growing flowers since 1928 - chrysanthemums, roses, freesia, strelitzia, and cymbidium. In 1985, De Hoog shifted his focus to orchids, and his father, Nico de Hoog, continued to focus on the sarcophagus, one of the most popular ornamental species in the orchid family.
Today, the De Hoog family Arjan and Marco brothers operate a highly advanced potted greenhouse with a total area of ​​40,000 m2 and an environmentally friendly cultivation method. The greenhouse produces 1.8 million sarcophagus per year and is equipped with state-of-the-art planting techniques, including efficient combined heat and power (CHP) systems and container transportation systems.
challenge
In 2010 Arjan de Hoog contacted the Philips LED plant lighting team to find out how to use LED lighting to improve his orchid planting. At the time, he used Philips high-pressure sodium (HPS) single-layer planting, which produced a lot of heat. Orchids only bloom once a year and require a relatively cool temperature to bloom. In the summer, Arjan de Hoog had to use air conditioning to cool down to provide a cool temperature for the orchid flower buds to germinate. This is not only costly but also inefficient. Together with Philips, Arjan de Hoog began a series of intensive planting tests on different orchid varieties for different color LEDs and light formulations, starting from small scales to larger scale trials. Philips plant experts measured the light levels and gave light formula recommendations. The aim is to reduce energy consumption in the low-temperature cultivation unit, increase the number of flowering and germination of the plants, and achieve the anniversary planting of challenging orchid varieties, such as comet king akatsuki, sea mary snow king, Irene smile and sweet pinky monoko.
Ultrasonic Thermal Flowmeter uses the transmission time difference of the ultrasonic wave in the downstream and upstream medium sent and received by the ultrasonic transducer, to measure the velocity of the medium indirectly, and then calculate the flow rate through velocity.This is an indirect measurement method.
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