In the latter case, the homogenizer is of aseptic design with special piston seals, sterile steam condenser and special aseptic dampers. This book includes extensive and proven knowledge from leading experts in the process control field, including contributions from the isa. There are four valve types selected in accordance with the problem in question. Please enter your details to continue reading the rest of the book of 480. In the homogenizer valve, flow conditions expose to intense changes of. They can control and regulate the flow direction of the hydraulic fluid, the pressure, the flow rate and, consequently, the flow velocity.
The apv homogenizer group designs and manufactures highpressure. The homogenizer basically consists of a positivedisplacement pump to which is attached a homogenizing valve assembly. The design and operation of the valvehph has been comprehensively. Large eddy simulation of a highpressure homogenizer valve. Highpressure homogenizer design request pdf researchgate. Influence of,valve design on effectiveness of homogeaizatiot. Since invention of the first homogenizing valve, attempts have been made to design a valve that could generate the smallest average globule size with the least. Engineering aspects of food emulsification and homogenization, pp. Valve and impingement design flow rate highpressure homogenizers have long been the best available means to mechanically disrupt nonfilamentous microorganisms on a large scale. The valve geometry is fundamental in obtaining specific results on the product and to ensure optimal use of the pressure. Shermans emulsion science see bibliography or an equivalent book covering.
It is caused by the acceleration of the oil as it flows from a larger passage through a smaller one. Development of the new gaulin microgap homogenizing valve. Homogenization mechanism food science university of guelph. They postulated further that the casein micelle was activated at the moment it passed through the valve of the homogenizer. The homogenizer consists of a 3 cylinder positive piston pump operates similar to car engine and homogenizing valve. Animal tissue also can be processed but the tissue must be pretreated with a blade blender, rotorstator homogenizer, or paddle blender.
However, downstream location of the homogenizer is recommended for indirect uht systems when milk products with a fat content higher than 6 10 % andor with increased protein content are going to be processed. Machines which include the impingement design are more effective than those. By tracing the path of flow of the fullfat milk through the homogenising valve, it will be. Characteristics of highpressure homogenization valves compares sample. Instructions for the care and operation of i model cgd twostage mantongaulin homogenizers introduction mantongaulin homogenizers are rugged, heavy duty machines, built to withstand long years of service. The cavitation theory of homogenization journal of dairy science. To clarify this concept, lets first take a look at fluid flowing through a pipe in the diagram below. Large eddy simulation of a highpressure homogenizer valve article pdf available in chemical engineering science 1. Ultrasonic homogenizers utilize sound waves to disrupt tissues e.
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