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Home»Society»Calculation of heat exchangers: the path to efficiency

Calculation of heat exchangers: the path to efficiency

December 6, 2024

Once the heat exchangers were a rather simple device that can create conditions for the course of exchange processes between hot and cold media. Due to this, such an unit can affect the temperature regime of the surrounding space.

Currently, heat exchangers are complex structures, each detail of which works according to a pre -calculated regime. This allows you to effectively solve the problem of creating an optimal temperature regime in the room where the heat exchange is installed.

At the moment, such units are actively used at large and small enterprises. A properly designed and designed heat transfer device is able to effectively solve problems of ensuring a safe production mode. If the unit does not work with the efficiency that is required on this type of object, this turns into a serious threat to its safety.

In this regard, the most important stage of production of heat exchangers can be considered preliminary calculation of heat exchangers. It is made with two goals: either to design a new unit, or to check the operating mode of the already created.

When conducting a verification calculation, the task is to test how the mode of operation of the unit will change if any of the conditions of its functioning change. For example, using verification calculation, you can calculate how the performance parameters will change if the temperature of the coolant drops at the entrance to the unit. Based on these given, a decision is made on the feasibility of changing the temperature of the coolant.

Much larger work is carried out during the design calculation of the heat exchanger. The global goal of this procedure is to find out what dimensions and manufacturing material will be optimal to perform the desired function in a given conditions.

At the initial stage, thermal calculation is carried out, which allows you to establish the main thing: what sizes of heat exchanger surfaces are required in order to successfully perform the function of creating the desired temperature regime in a given conditions.

Based on these data, then the design itself is calculated. At this stage, it is established what sizes the unit should have, what materials should consist of its main details. In parallel, the calculation for the strength of the unit is also carried out, taking into account the execution of the specified loads.

Then the calculation of hydraulic parameters is calculated. This applies primarily to the characteristics associated with the mode of movement of the coolant inside the heat excess unit. And this stage is calculated, what is the necessary speed of the coolant and there are options for creating the necessary conditions for creating these speeds.

Then thermal insulation is calculated. And at the final stage, the calculation of economic indicators of work is carried out and it is determined how efficiently the design will work, taking into account economic factors. If the desired result is obtained only due to the excessive cost of operating the unit or for its manufacture, the calculation parameters are reviewed to create a more economical model without loss of efficiency of the unit work.

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