A method for controlling the outlet temperature of an orc system evaporator

Abstract

The invention discloses a method for controlling the outlet temperature of an evaporator in an ORC system. First, the moving boundary method is used to model the evaporator in the ORC system, wherein the evaporator is partitioned and integrated, and then the evaporation is obtained according to the energy conservation and mass conservation tables. The model of the evaporator; according to the evaporator model, the sine-cosine algorithm is used to optimize the system configuration, in which the individuals of various groups are cross-operated and sorted and iterated according to the fitness, and the optimal configuration result is obtained; then the outlet temperature of the evaporator is adjusted according to the optimized configuration result. The invention improves the energy utilization rate, net output work and power generation efficiency of the system through the regulating method of the outlet temperature of the evaporator of the ORC system, and has good stability.

Description

technical field [0001] The invention relates to a method for controlling the outlet temperature of an evaporator in an ORC system, belonging to the field of ORC systems. Background technique [0002] With the progress of society and the continuous development of science and technology, the energy consumption required in life and production is gradually increasing. At present, human energy mainly uses non-renewable resources such as oil, natural gas, and coal mines. Continuous consumption is not a long-term solution, and The use of resources creates a high environmental burden. Therefore, the use of renewable biomass resources or clean natural resources such as solar energy and wind energy has become an inevitable trend in the development of the energy industry. The working process of the biomass boiler will produce a large amount of waste gas, which contains a large amount of heat energy and is discharged without being fully utilized, which wastes resources and is also harm...

AI Technical Summary

Problems solved by technology

The working process of the biomass boiler will produce a large amount of waste gas, which contains a large amount of heat energy and is discharged without being fully utilized. It is a waste of resources and is also harmful to the environment.

[0003] The traditional ORC (Organic Rankine Cycle Power Generation) system uses low-temperature waste heat resources as a heat source for the subsequent operation of the ORC system, but the instability of low-temperature waste heat resources will also cause instability in system operation

Although the existing ORC system using biomass has improved the energy utilization rate of the system to a certain extent, its power generation efficiency still needs to be improved.

Images