Run Test And Performance Analysis Of Ground Source Heat Pump System

Ground source heat pump technology, as a kind of can either refrigerating and heating of the air conditioning technology. It has unique advantages in energy saving. In recent years, ground source heat pump system is developing rapidly. With rapid development of ground source heat pump, and its actual operation efficiency are often neglected. Performance testing can effective detection system to run, provide reliable data to improve control scheme, improve the design accuracy and improve efficiency.For air conditioning system, most of actual operation is not running under nominal working condition, changed working condition will cause the system efficiency. Air conditioning system can be achieved through test of operation parameters and the coefficient of performance, but each parameter changes will cause changes in the system performance and energy consumption. Understanding the impact of these factors on the system, help to improve the efficiency of the operation of the system, make its maintain in high efficiency running state, in order to achieve the purpose of energy saving.First, this paper studies the air conditioning system operation process, the effective response unit and the related parameters in the system energy efficiency testing theory and method. Based on the concept of air conditioning system operation efficiency, on the basis of influence factors of energy efficiency and its variation characteristics, find out what can accurately reflect the air conditioning in each subsystem and the entire air conditioning system running efficiency parameters. Proposed a method of Air conditioning engineering field efficiency testing. Including test conditions, equipment, process, content, and may encounter problems and solutions in the testing process, For ground source heat pump system efficiency analysis and evaluation to lay the foundation.And then, on the basis of theoretical analysis, to extract the influence factors of ground source heat pump buried pipe system. Put partial load rate, load side temperature difference change flow, the ground source side variable flow as independent variables, analyzed the impact of these factors on the unit and system, to provide theoretical basis for improving the performance of systems.Finally, a mathematic model of the air conditioning unit, to simulate the load rate and traffic factors effect the performance of the unit, the simulation curve and formula, and then the accuracy of the simulation results are validated by the measured.