The steam-driven ejector heat pump is introduced into the traditional multi-stage heating system of dryer section of paper machine.

For solving the problem of condensate slugged in drying cylinder,a novel open- cycle paper machine system assisted by ejector heat pump is designed.

Steam-jet refrigeration system not only save much energy,can be operated using energy sources such as solar energy,geothermal energy and waste heat,but also friendly to environment,can be used such as water designed for low pressure refrigerants.

As people pay more attention to energy and environmental problems, solar jet refrigeration that uses solar energy as main power is focused on through the world.

Exergy analysis was used as a tool to analyze the performance of solar ejector cooling system.

A mathematical simulation of solar ejector refrigeration system;

A thermodynamic entropy analysis of solar-driven ejector refrigeration circulation;

Solar ejector refrigeration system has attracted the attention of many researchers in recent years due to no pollution to the envirorment and simple operation and maintenance.