With the dynamic simulation analysis software of hydraulic cases for central heating and air-conditioning system,a new method is presented to determine regulation value of the hydraulic cases.

On the basis of drawing theory and the water flowing regularity of pipe network, the mathematical model and constraint condition of water flow optimal regulation were provided and simplified for one water pump heating and air-conditioning system.

By example ,the computing methods and steps of path method with which water flow is regulated for central heating and air-conditioning system are provided in order to provide the theory basis f.

The Flow Calculation of District Heating System and Development of the Graphical Information System;

2007,of drag-reducer applying to some district heating system for the purpose of turbulent flow drag reduction,fluid transport flow rate increase and energy-saving.

A study on the causes of less heat supply in central heating system;

Appropriate heating regulation technology in central heating systems

This paper probes into the problems existing in the user side of the central heating system,and puts forward some corresponding measures for the energy saving.

Testing and analysis for microbes and particles in central air conditioning systems of public buildings;

Application of self-adaptive fuzzy control technique to central air conditioning systems;

Reliability analysis of central air conditioning systems;

The central air-conditioning system based on LonWorks technology;