A pre-charge control method for a disc Stirling engine

Abstract

The invention discloses a pre-inflation control method for a disk-type Stirling engine, and relates to the field of solar utilization. The method comprises the steps of building a solar radiation model in pollution-free atmosphere based on an air mass model and a Linke turbidity factor model according to a characteristic that a disk-type solar Stirling heat power generation system collects heat energy with a relatively high temperature through a solar collector arranged at a focal point to heat working mediums so as to drive a Stirling power generation unit to generate power, thereby obtaining a solar radiation value of a place where a device is located; and performing calculation according to the radiation value to obtain a working medium quantity corresponding to the radiation value. The solar radiation value is estimated by adopting the model in the method, and then the disk-type Stirling engine is inflated when being just started, so that the loss and subsequent fatigue of important parts of the Stirling engine are reduced, and the situation that the service life of the collector is influenced and even the working mediums leak due to the loss and fatigue of metal of the collector caused by rapid temperature change of the collector in a short time when the system is just started is avoided.

Description

technical field [0001] The invention relates to a pre-inflation control method of a disc Stirling engine, relates to the field of solar energy utilization, and aims at reducing the loss and subsequent fatigue of important parts of the Stirling engine. Specifically, it is a method of using the model of this method to estimate the solar radiation value without using an external solar pyranometer, so as to charge the dish Stirling engine when it is just started. Background technique [0002] With the rapid development of the economy, our country's demand for energy is gradually increasing. According to the estimates of the National Energy Administration, by 2015, my country's primary energy consumption will reach 4.2 billion tons of standard coal, of which fossil energy still accounts for about 90%. Fossil energy is a non-renewable resource. Its large-scale mining and utilization is not conducive to the sustainable development of the country, and at the same time it will caus...

AI Technical Summary

Problems solved by technology

When the system is just started, the temperature of the receiver will rise from normal temperature to hundreds of degrees Celsius in a short period of time. The rapid change of temperature in a short period of time will cause wear and fatigue of the metal of the receiver, affect its service life, and even cause damage to the receiver. qualitative leak