The Parameters of Cleaning a CIP System Affected Energy Consumption and Cleaning Efficiency of the Plate Heat Exchanger

Abstract

This paper presents a study on the effect of cleaning factors on the energy consumption of the cleaning process in a CIP system, and the correlation between single components of electricity necessary to perform this process and the cleanliness degree obtained. Studies were carried out in a laboratory cleaning station, wherein a plate heat exchanger contaminated with hot milk was included. The research program was developed according to a 5-level statistical plan. Based on the results, obtained with Experiment Planner 1.0, a regression function of energy requirement considering variables such as: cleaning time, temperature and flow rate of the cleaning liquid via the cleaned exchanger has been developed. Describing this relationship, linear and quadratic functions with double interactions were used. Significance level for the analysis was established at α = 0.05. Correlation analysis between components of the electricity necessary to perform the cleaning process (pump drive and heating of the cleaning agent) and the resulting degree of cleaning of heat exchanger plates was performed.

Impact of storage at room temperature on the properties of CiP solutions

“…Accordingly, it can be argued that it is possible to lower the storage temperature of CiP solutions, as such an approach does not pose the risk of microbial contamination and can also reduce the cost of maintaining high temperature between cleaning processes. Studies indicate that heating and maintaining the high temperature of cleaning solutions is the largest cost factor associated with CiP .…”

“…On the basis of the volume of titrant used for the titration (A), the concentration of individual solutions was calculated as shown by equations (4) and (5).…”

“…Such detergents are used to remove the heavy particulate soil from brewhouse vessels in wort production. They are recovered post cleaning (for subsequent reuse) and stored in tanks in the CiP set . The temperature at which they are maintained depends on the frequency of the cleaning .…”