Method for regulating and controlling temperature of outlet of evaporator of ORC system

Abstract

The invention discloses a method for regulating and controlling the temperature of an outlet of an evaporator of an ORC system, which comprises the following steps of: firstly, modeling the evaporator in the ORC system by adopting a moving boundary method, carrying out partition integration on the evaporator, and then obtaining a model of the evaporator according to an energy conservation table and a mass conservation table; according to the evaporator model, optimizing system configuration by using a sine and cosine algorithm, and enabling various group individuals to be subjected to crossover operation according to fitness and to be sequenced and iterated to obtain an optimal configuration result; and regulating and controlling the outlet temperature of the evaporator according to an optimal configuration result. According to the regulation and control method for the outlet temperature of the evaporator of the ORC system, the energy utilization rate, the net output power and the power generation efficiency of the system are improved, and the stability is good.

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