Explosion and combustion processes associated with the fogging of stored potatoes
An appraisal was undertaken of the key factors involved in explosion and combustion processes mainly associated with the fogging of chlorpropham formulations into potato stores. The key factors considered are source of ignition, solvents, explosive limits of solvents, the presence and atmospheric concentrations of particulate clouds and the role of particulate material in dust explosions. Also the sequence of events that takes place in a dust explosion, including critical concentrations of dust required to initiate the reactions involved and the particular relevance of the above events to the behaviour of chlorpropham fogs both at the time of application and when distributed throughout a store. The relevance of fine dust already present in the store to the initiation of explosions, particularly secondary explosions, which are considered to be a major cause of concern due to their severity, is also emphasised.
Additional keywordschlorpropham particulates dusts solvents ignition source explosive limits Solanum tuberosum L.
Unable to display preview. Download preview PDF.
- Anonymous, 1990. Unifog work manual, Thermal fogger (model 100) Unifog UK Ltd. Gravesend, Kent, UK, pp. 22.Google Scholar
- Anonymous, 1996. The Merck Index: An encyclopaedia of chemicals, drugs and biologicals. S. Budavari (Ed.), 12th Edition, Merck & Co., New Jersey.Google Scholar
- Burfoot, D., D.L.O. Smith, M.C. Butler-Ellis & W. Day, 1996. Modelling the distribution of isopropyl-N (3-chlorophenyl) carbamate (CIPC) in box potato stores.Potato Research 39: 241–251.Google Scholar
- Duncan H.J. & I.M.G. Boyd, 1991. Database of chlorpropham/propham. Technical report sponsored by UEITP/ESA, pp. 121.Google Scholar
- Hidy, G.M., 1984. Aerosols: An industrial and environment science. Academic Press Inc., New York, pp. 328–338.Google Scholar
- Matthews, G.A., 1982. Pesticide application methods. Longman, London and New York, pp. 204–214.Google Scholar
- Palmer, K.N., 1973. Dust explosions and fires. Chapman & Hall, London, pp. 372.Google Scholar
- Rickett, F.E. & P.R. Chadwick, 1972. Measurements of temperature and degradation of pyrethroids in two thermal fogging machines, the Swingfog and TIFA.Pesticide Science 3: 263–269.Google Scholar