The burst temperature of a rupture disc must be the operating temperature of a system is not always the same. This may for example due to the fact that between his process in the plant and the work site of the rupture disc is a certain distance, and therefore reaches a high temperature does not reach the rupture disk. Or the pressure increase in a facility, which subsequently leads to the burst of the disc is performed by a temperature increase by as a chemical reaction, etc..
Therefore it is important to know the design of a burst disk, temperature at which the rupture disk is present at this, as the temperature, especially for metal burst discs. At higher temperature (as design temperature of the burst disk) the burst disc responds at a lower pressure, and at a lower temperature vice versa accordingly.
Due to the size of the bubble in a liquid gas to be dissolved, the solubility of the Same is influenced. With decreasing bubble size the gas exchange surface increases, thereby solving the potential, a gas in a liquid, increases.
For the solution of gases in liquids, the term solubility a coefficient of the relative in diffusion equilibrium with the gas space dissolved in the liquid gas to the pressure of the gas indicates. There are:
- qualitative solubility (the substance in a particular solvent in a recognizable extent soluble?) and the
- quantitative solubility (which amount of substance can in a unit volume of a particular solvent are dissolved?).
The aim of STRIKO process engineering is therefore the dissolving gases in liquids (drinking water, carbonation of beverages of all kinds, etc.) by using appropriate mixing elements, the correct sizing of the mixing tube and the use of optimal dosing, the maximum solution of a gas in a to realize liquid. This is in addition to the bubble size, which should be in the micron range, and the parameters of pressure and temperature and also depends on the media itself.
The pressure loss through the wall friction and internal friction in static mixers, piping, fittings, valves, etc. resulting pressure difference between two defined points. In static mixers, these mixers points – input and output. In the art, for locally attached to a pipeline built elements (mixing elements, valves, diaphragms, etc.) is a resistance coefficient ζ, which table works can be removed.
The electricity generated by wall friction pressure loss is determined by the pipe friction coefficient λ. The friction factor is dependent on the Reynolds number in the case of a laminar flow. If the flow is turbulent, the roughness of the surface shoul dbe considered.
The equation for pressure losses in flow through pipes under the assumption of a constant density is:
This is the Bernoulli energy equation, where the term is not taken into account for the static head, because this is no pressure loss.
ρ Thickness in kg/m3
u medium flow rate in m/s
λ Friction factor
l Length of the pipeline in m
d Diameter of the pipeline in m
ζ resistance factor
- Immersion in liquid applications
- Coating of containers
- Thermal plates as containers
During tempering of viscous media, the product area tubes tend to cake. To minimize and prevent the so-called fouling and to improve the heat transfer, mixing elements are used.
Thus, the product which flows laminar is continuously shifted from the centre of the pipe to the pipe wall and vice versa. As a consequence, the time intervals between downtimes for cleaning the the product area tubes and the construction size / length of the heat exchanger can be reduced as compared with the heat exchangers with no mixing elements.