Clarification:The function of the holding loop is to sterilize the medium. The heating coil or loop sterilizes the medium and the cooling loop or coil cools the medium to the fermentation temperature. This is the basic process of continuous sterilization. 5. The sterilization in double spiral heat exchanger
Continuous sterilization also is known as high-temper-ature, short-time (HTST) sterilization. A continuous sterilizer heats non-sterile (raw) medium to the desired sterilization hold temperature (typically 135150 C), maintains it at constant temperature in an adiabatic holding loop (consisting of a long length of insulated 352 Alfa Laval Spiral Heat Exchanger - Micro OrganismsDec 16, 2020 · Alfa Laval Spiral Heat Exchanger. Last Updated on Wed, 16 Dec 2020 Micro Organisms. The design of continuous sterilization cycles may be approached in exactly the same way as for batch sterilization systems. The continuous system includes a time period during which the medium is heated to the sterilization temperature, a holding time at the desired temperature and a
To achieve sterilization temperatures steam is passed through one spiral from the center of the exchanger and medium through the other spiral from the outer rim of the exchanger, in countercurrent streams. Spiral heat exchangers are also used to cool the Continuous Sterilization - Fermentation Technology Explanation:The continuous sterilization includes the time period of heating where the medium is heated, followed by holding time where the medium is held at a certain temperature and finally the cooling period to restore the medium to the fermentation temperature.
The water in this circuit is heated to a little above the required sterilization temperature by steam under pressure in a heat exchanger section. The low differential of not more than 3°C, reduces the amount of fouling on the heat exchange surfaces, and allow longer operating times before the heat exchanger is shut down to be cleaned. Heat Exchangers for Hygienic Use - Alfa Laval - heat spiral heat exchangers continuous sterilization and heat recovery in the biotech and pharmaceutical industries. Welded heat exchangers a compact heat exchanger module for point-of-use cooling in the pharmaceutical water system, mainly for water for injection (WFI) and purified water (PW).
To achieve sterilization temperatures steam is passed through one spiral from the center of the exchanger and medium through the other spiral from the outer rim of the exchanger, in countercurrent streams. Spiral heat exchangers are also used to cool the Sterilization Filtration Heat ExchangerFlow diagram of a typical continuous sterilization system employing spiral heat exchangers FILTER STERILIZATION Suspended solids may be separated from a fluid during filtration by the following mechanisms:(j) Inertial impaction. (ii) Diffusion. (iii) Electrostatic attraction. (iv)
Continuous sterilization is the rapid transfer of heat to medium through steam condensate without the use of a heat exchanger. Once the media is in a holding loop, steam is injected to the system via a nozzle. The medium stays in this loop for a predetermined holding time until the entire medium is sterile.
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