Exponential coefficient is widely used in many fields. It covers physics, chemistry and other natural sciences, as well as social sciences such as finance, money, macroeconomics and microeconomics.
For example, China's traditional unit of length measurement is feet, Britain's traditional unit of length measurement is feet, and the international unit of length measurement is meters. In order to effectively and accurately convert traditional units of measurement to international standard units of measurement, the exponential coefficient appeared.
Extended data:
Conversion methods, such as:
The calorific value of 1 kg standard coal is 29.3 MJ to measure all fuels and power sources. That is, the coal equivalent coefficient is equal to the actual calorific value of 1 kg energy divided by the calorific value of 1 kg standard coal of 29.3 megajoules.
When hydropower is measured as primary energy, China is calculated according to the average coal equivalent value of fuel actually consumed by electric energy when the thermal power plant produces 1 kW in that year. The statistics of the United Nations are calculated by the mechanical equivalent of heat.
Hydropower at 1 kW is equivalent to 3.6 MJ, and the coefficient converted into coal equivalent is 0. 123. The method of converting nuclear power into coal equivalent is the same as hydropower, but this method cannot reflect the conversion efficiency of nuclear fuel.
Adoption of exponential coefficient
In the consumption statistics of raw coal, because the calorific value of coal products such as raw coal and clean coal is different, enterprises that produce and use raw coal can calculate the actual calorific value of products.
When calculating coal consumption, the actual discount coefficient is different from the reference discount coefficient. When the difference is large, the impact on comprehensive energy consumption is prominent.
For example, an enterprise consumes raw coal 10000 tons, energy consumption is 7 143 tons of standard coal, and the given reference discount coefficient is 0.7143; If calculated according to the conversion coefficient of 0.6023 measured by the enterprise, the total energy consumption is 6023 tons of standard coal.
Due to the change of index coefficient, the comprehensive energy consumption will be reduced by 1 120 tons of standard coal. From the perspective of energy saving and consumption reduction, the change of index coefficient will directly affect the total comprehensive energy consumption without reducing the physical consumption of enterprises.
For other coal washings, other gases and other products, the range of discount coefficient is quite different. The discount coefficient range of other coal washings is 0.2-0.8, and that of other gases is 1.7- 12. 1. The greater the range of discount coefficient, the greater the impact on total energy consumption.
An enterprise consumes other coal washings 10000 tons. If the conversion factor is 0.2, the energy consumption is 2000 tons. If the conversion coefficient is 0.8, the energy consumption is 8000 tons (assuming that the calorific value of raw coal in the enterprise is fixed and the conversion coefficient is artificially changed).
Other coal washings with a consumption of 6,543,800 tons differ by 6,000 tons due to the change of discount coefficient, which shows the influence of discount coefficient on comprehensive energy consumption.
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