Boiler Thermal Efficiency Test System Based on NB-IoT Technology

Abstract

This paper combines the wireless NB-IoT technology with the traditional boiler thermal efficiency test, and uses LabVIEW to develop a test analysis system. By installing the data export module and the transmission module together on the existing equipment to perform wireless and digital upgrade of the detection equipment, the purpose of improving the automation degree of the thermal efficiency test is achieved, thereby reducing the number of test staff on site. At the same time, it will avoid the dust and high temperature danger that the staff will encounter on site. The complex boiler thermal efficiency calculation formula is simplified according to the wireless, real-time and accurate needs of the boiler thermal efficiency test. A formula for calculating the enthalpy value that satisfies the requirements of online testing, a formula for the heat loss of the incomplete combustion of the gas, and a formula for fitting the ash combustibles are proposed.