Abstract: The principle of software of measuring and controlling system for heat exchanger testing equipment based on LabVIEW software development platform are introduced, and the composition of system software and hardware and the work process are described. Several function modules including real time measurement, recording, analysis and regulation, are integrated in the software package. It collects data of temperature, pressure and flow rate via computer serial communication ports connected with all testing equipment under the control of computer during testing process, displays data on computer touch-screen after being analyzed and calculated, and outputs from computer output cards for the regulation of test parameters. The operator can operate and control equipments via computer touch-screen. Powerful function software reduces the number of peripheral equipment and makes system simple and reliable. The results of tests show that the system features high-precision measurement and control good reliability, high automation and good maneuverability, so it is worth using widely in various test systems of energy and chemical industries.

Key words: Heat exchanger, LabVIEW, Performance test