Method for measuring energy efficiency of natural ventilation countercurrent wet cooling tower

Abstract

The invention discloses a method for measuring energy efficiency of a natural ventilation countercurrent wet cooling tower, which comprises the following steps: obtaining structural parameters of thenatural ventilation countercurrent wet cooling tower; measuring operating parameters during an operation process of the natural ventilation countercurrent wet cooling tower, and measuring circulatingwater pump operating parameters during the operation process of the natural ventilation countercurrent wet cooling tower, wherein the circulating water pump operating parameters comprise circulating water pump working voltage U and working current I, and obtaining consumed pump power W (pump power) of the matching circulating water pump of the natural ventilation countercurrent wet cooling tower based on the consumed pump power of the matching circulating water pump of the natural ventilation countercurrent wet cooling tower; calculating an energy efficiency evaluation index Eta of the naturalventilation countercurrent wet cooling tower; when the energy efficiency evaluation index Eta is smaller than a, determining that the energy efficiency of the natural ventilation countercurrent wet cooling tower is evaluated as low energy efficiency; when the energy efficiency evaluation index Eta is not smaller than a and smaller than b, determining that the energy efficiency of the natural ventilation countercurrent wet cooling tower is evaluated as intermediate energy efficiency; when the energy efficiency evaluation index Eta is not smaller than b, determining that the energy efficiency of the natural ventilation countercurrent wet cooling tower is evaluated as high energy efficiency.

Description

technical field [0001] The invention belongs to the technical field of cooling towers, in particular to a method for measuring the energy efficiency of a natural ventilation counterflow wet cooling tower. Background technique [0002] Energy is the basic driving force for economic development and social progress, and is an indispensable basis for human survival. Its importance is self-evident. In the energy consumed by human beings today, fossil fuels such as coal still occupy a dominant position. In recent years, the energy crisis has intensified, energy prices have continued to rise, and environmental and ecological problems have become increasingly prominent. Thermal power accounts for as much as 75.2% of my country's power generation. Therefore, under the current goal of saving energy and reducing consumption, it is of great significance to improve the power generation efficiency of power plants. [0003] In thermal power generation, fuel is burned in the boiler to rel...

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Problems solved by technology

[0006] The various evaluation indicators or methods mentioned above are only used for the performance comparison of natural ventilation counterflow wet cooling towers, and considering a single type, they only evaluate the performance of cooling towers from the perspective of energy, and do not fully consider the water in the cooling tower operation process. , power loss and other factors, it is impossible to comprehensively judge the performance of cooling towers and divide them into energy efficiency grades

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