Flue Gas Sourced Orc Waste Heat Recovery ORC Power Unit Energy Efficiency

Based on ORC (Organic Rankine Cycle) technology, SMDERI developed ORC Power Unit which maximally converts the low grade heat in temperature of 80-250 ℃ to electrical energy without extra fuel consumption.

Working Principle:

◇ The low boiling point organic working fluid absorbs the heat inside the evaporate system, then is evaporated to high temperature & high pressure steam.

◇ The high temperature & high pressure steam flows into the turbine expander and make it work, then the temperature & pressure of the steam is lowered down after work.

◇ The working turbine expander drives the generator to create electricity.

◇ The steam with low temperature & pressure after works on the turbine expander flows into the cooling system to be condensed to fluid.

◇ The working fluid is pressured by the fluid pump and flows into the evaporate system for next cycle.

Applications:

• In the fields of waste heat recovery for power generation, covering the industries of refineries, petrochemical plants, steel, cement electrolytic aluminum, dyeing, etc.
• For geothermal power plants.
• Solar concentrated power generation as an essential circulation system.

Flue Gas Sourced ORC Power Unit:

This type of ORC power unit utilizes waste heat containing in flue gas. This unit consists of two systems: flue gas heat exchange system & ORC power system. Through flue gas heat exchange system, the heat conductive oil absorbs the heat by means of heat exchange with flue gas. The heated and high temperature conductive oil flows into the ORC for power generation. The conductive oil out of ORC system flows into the flue gas heat exchange system for next cycle.

Organic working fluid: R245fa, alkane-family fluid.

Condensing type: Water, evaporate & air cooling.

Single rated capacity: 500 – 6,500 kW

Specifications for reference