Issues in design of the surface air cooler in fan coil units;

Several problems in thermodynamic calculation of surface air coolers;

New thermodynamic calculation method for surface air coolers: heat-exchange efficiency of waterside method;

Numerical simulation of cooling coil in target s simulation system of air conditioner;

This paper simply introduces the Current situation of simulation softwareAbout air conditioner, put forward simulation system about control target of air conditioner, develops the dynamics mathematical model of cooling coils, it is necessary for researching of university and analyzing system.

Based on the principle of thermodynamics and heat and mass transfer, taken TRNSYS as the simulation platform, develops the dynamics mathematical model of cooling coils and validates it by experiment.

Experimental investigations on the effects of fin-pitch on the performance of cooling coils;

Numerical simulation of the thermal performance of cooling coils;

Get the performance data and the relationship between flow ratio and handling ability ratio of a cooling coils using in different systems.

The vacuum device for three-effect and four-compartment evaporation process of diaphragm caustic soda was transformed,which reserved the water jet condensers and added a combined vacuum device of a surface condenser and a vucuum pump.

Hydraulic resistance of surface cooler in air conditioning;

Under the conditions of keeping original surface of cooler,basically unchange of raw materials and slightly change of the temperature,through the improvement of surface cooler,increasing the friction resistance and powdering rate of the cooler,it can improve the rate of firstgrade product of zinc oxide over 80%.