by jimbaker on Thu Jan 11, 2007 7:15 pm
Although we are not an ozone company we provide plasma block corona discharge technology in numerous cold storage applications. There doesn’t seem to be a magic number but we consistently see .5 to 2 ppm. I seriously doubt .05 or .1 will have any effect at all. Then again I am no expert in this field. I can only go by what our customers tells us and we hear this all of the time. Much of this has to do with ethylene levels, temperature and humidity, type of produce, length of storage, cubic feet of storage and so on. The plasma block can easily produce 50,000 ppm. Yes that is what I said 50,000 ppm at the discharge of the ozone line. We mix this with the circulation fans which very efficiently move the ozone and air throughout the facility. Obviously no humans are in the area. Estimated concentration levels once the ozone and air are mixed are about 1 ppm based on 8000 cubic foot of storage for 1g/hr of ozone produced. A 300,000 cubic foot storage facility would need 37.5 g/hr plasma block generator. I hope this answers your question. Please contact me should you need more information on our plasma block technology. Guardian is a automation and controls system integrator for industrial, aerospace, pharmaceutical, food processing and many other markets.
Best regards,
Jim