Process Capabilities
Operation of a continuous HTST pasteurisation plant using selected liquid foods
Learning the importance of Clean-In-Place (CIP) procedures
Varying and controlling holding times
Measuring heat transfer coefficients in a plate heat exchanger, for various plate and gasket configurations
Measuring heat recovery in a regenerator
Features/Benefits
Miniature plate heat exchanger
Fully self-contained design with integral hot water system
Choice of holding tubes
Variable product temperature and holding time
Control console incorporating comprehensive instrumentation
CIP facility benchtop operation
Tests can be carried out quickly and easily
Simulates the conditions used in a production plant
Small quantities of liquid product can be processed
Description
This self-contained laboratory unit is suitable for HTST
(high temperature, short time) pasteurisation of up to 20 litres/hour of a wide variety of low-viscosity liquid foods. Products that may be pasteurised include raw milk, nectars, fruit juices, skimmed milk,
ice-cream mix, soft drinks, pharmaceuticals and margarine emulsion.
A CIP (clean-in-place) facility is incorporated which allows disinfection, pre-rinsing, detergent washing and final rinsing. The ability to vary process conditions has been built into the unit in the form of the following features:
Variable speed, peristaltic, hygienic feed pump allowing flow rate variations
Plate-type stainless steel heat exchanger – the cooling, regenerating and heating sections, mounted on a common frame work, are easily dismantled to allow re-configuration and inspection of the heat transfer surfaces
Electrically heated hot water circulating system for both pasteurisation and CIP cycles – any required holding tube outlet temperature is set on the indicating microprocessor-based power output controller of the water heater
Stainless steel holding tube, allowing holding times between five seconds and two minutes
Flow rates of feed pump, cooling water and hot water are monitored accurately
Temperatures in the system are monitored with thermocouple sensors at each of six chosen locations (nine available)
Maximum process temperature 85°C