A number of various evaporator designs have been developed using the fundamental principles of the rising film evaporator, thermo-siphon. This is essential as it reduces the overall heat transfer area requirement which in turn will lower the initial capital cost of the evaporator. Year of Establishment
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Falling- Rising Film Evaporator
Therefore, it would be favourable to maximise the amount of area available for heat transfer. Engineered Thermal Separation Solutions. The system is supported within evwporator stainless steel framework and requires only a connection to suitable steam, electrical and water services for operation.
For a general shell and tube heat exchanger, U is given by the equation . A fulm film or vertical long tube evaporator is a type of evaporator that is essentially a vertical shell and tube heat exchanger.
A specific application of rising tube evaporators is evaporaror thermal desalination of sea water. There is a wide range of applications for rising tube evaporators, including effluent treatment, production of polymers, food production, thermal desalination, pharmaceuticals, and solvent recovery.
Hence, the main process attributes are the characteristics of the process that significantly rizing these two areas. Extended 2 year Warranty. Products Products Buy Leads Tenders. A computer runing Windows 98 or above, with a USB port.
Products Evaporatod Buy Leads Tenders. Another significant factor that affects the value of the heat transfer coefficients is the design of the evaporator. Multiple effect arrangement can be provided to reduce steamconsumption. Compare Quotations and seal the deal.
This co-current upward movement against gravity has the beneficial effect of creating a high degree of turbulence rvaporator the liquid.
This is accentuated by the fact eaporator the components, which consist of a shell and tubes, fim easily obtainable with customized designs making them cost effective for construction and ideal for simple evaporation requirements. This is the contact area of heat transfer which involves the outer surface area of the long vertical tubes that are parallel and in direct contact with the heating media housed within the shell of the evaporator.
Despite that, increasing the area of the heat transfer may include complications in terms of increasing the different dimensions of the evaporator which in results increases the cost of construction in addition to being subject to other limitations such as space and design constraints.
In order to maximise the thermal economy it is generally acceptable to maximise the heat transfer area as a larger area would give a higher heat transfer rate. Return to search results.
Rising Film | Chem Process Systems
Capacity is the amount tising water vaporized per unit time while the steam economy is the amount of solvent vaporised. Effective Customized Pilot Testing. From Wikipedia, the free encyclopedia. This is advantageous during evaporation of highly viscous materials and products that have a tendency to foul the heat transfer surfaces.
Moreover, this type of evaporator also can easily contain those widely available vapour separators for foaming products. This is essential as it reduces the overall heat transfer area requirement which in turn will lower the initial capital cost of the evaporator.
This can be generalised to mean residence time of a product, which specifies the mean time of the product stays within the evaporator.
From Please enter Mobile Number. There are many different types of Rising Thin Film Vacuum Evaporator models operating with different capacity, concentration control, types of condenser design to obtain the product at optimal condition. This factor will determine the capacity of the rising film evaporator.
A number of various evaporator designs have been developed using the fundamental principles of the rising film evaporator, thermo-siphon. This phenomenon of the rising film gives the evaporator its name.
In case of Falling film Evaporator the process fluid to evapoorator evaporated flows downwards by gravity as a continous film. Because the boiling temperature of water decreases as pressure decreases, the vapor boiled off rlsing one vessel can be used to heat the next, and only the first vessel at the highest pressure requires an external source of heat.