Evaporative condensation and energy efficiency
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Evaporative condensation and energy efficiency

With the arrival of fine weather, cooling installations demand increases so it is important to be ready to streamline our installations. Are you aware of how evaporative condensation might affect your projects?

Cooling installations have evolved over the last few years as becoming indispensable for most of the projects, especially regarding the industrial environment. However, these cooling installations consume quite a lot of energy and their maintenance costs are also high.

Improving energy efficiency for these installations has become a real challenge and a need for professionals of the sector, and also for us. That is why it is intended to offer the client the highest efficient in each project, promoting solutions that help leverage energy sources. Would you like to learn more about the last novelties of the sector?

Energy efficiency in industrial refrigeration installations

When it comes to industrial refrigeration, it encompasses three main factors:

  • Less consumption of industrial refrigeration: the less cooling an installation requires, the lower usage cost it will have. For the optimisation of this factor, isolation of cooling chambers, installation of automatic doors and flexible dividers are crucial. Even though these measurements imply an increase in the initial investment, they help reduce considerably energetic demand in the long term throughout life cycle of the installation. Hence, the cost is also lower.
  • Reuse the inevitable: cooling generation equipment usually produce heat derived from its operation which, at times, is responsible for breakdowns if the temperature accumulated is too high. The heat could generated could be reused through heat recovery systems and heat pumps, in order to generate even more energy so that resource maximisation could be attained.
  • Provide cooling more efficiently: there are certain aspects which need to be considered regarding this matter: influence of different pressures, choice of refrigerants, cycle settings, type of compressor, management of condensation, improvement of condensation system and the appropriate maintenance for only certain elements which affect cooling production.

It should be considered that if evaporation temperature increases and/or condensation temperature decreases, compression/consumption ratio will be reduced and therefore the cooling effects will increase.

Last sector trends highlight these new kinds of efficient cooling production, and more specifically, condensation pressure optimisation continuously through evaporative condensation.

Evaporative condensation systems

Evaporative condensation systems optimise the condensation pressure depending upon outdoor conditions of the installation; so operating costs as well as environmental impact are reduced.

These installations are based on evaporative cooling which work through an algorithm that manages and optimises the condensation pressure so that it is intended to search for the optimal speed ventilation control for each room temperature. The purpose is to help maximise the energetic performance of the system.

Design of the installation is done taking the most unfavourable outdoor conditions as a reference, which happens only during a few weeks a year. Potential energy saving is fundamental to minimise operating costs of the installation. Moreover, taking external calorific mean as a reference allows for getting lower condensation pressure with respect to other systems.

On the other hand, this system increases heat production and decreases specific airflow. Thus, refrigerant flow and flow losses are reduced. Therefore, increase of specific cooling performance improves volumetric refrigerant production.

Reducing pressure levels of condensation, compression works are also reduced as well as discharge temperature. It has a direct influence on the electric consumption of the installation and increases its durability. Hence, implementation of evaporative condensation systems allows to reduce condensation pressure and reduces operating costs. This influences directly on competitiveness of the cooling installation and, at the same time, its impact on the environment .

It is a fact that use of evaporative condensation and its huge amount of possibilities in the industrial refrigeration field will give plenty to talk about in the upcoming months. What do you think about it? Let us know in the comment section!

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