Feedwater Heaters
Greens Power provide High Pressure and Low Pressure feedwater heaters for conventional fossil fuel generation, nuclear, co-generation, district heating and advanced cycle configurations.

Feedwater heater systems can extract up to 30% of the turbine throttle steam. The intelligent use of this energy source is critical for efficient generation of electric power.

Greens Power produce efficient, cost effective designs providing longevity and trouble free service. We employ an array of proprietary industry specific design programmes to ensure the integrity, performance and reliability of each feedwater heater. Comprehensive vibration analysis utilising advanced fluid-structural coupling potential to limit damaging velocities to safe values.

Greens Power offer highly refined condensing, desuperheating, and drains cooling zone designs to contend with severe operation, partial or overload conditions. Our desuperheaters provide maximum exit dry wall temperature control, reduced or eliminated condensing tendency and practical vibration control. Our drains coolers provide low friction loss, conservative flash margin, rapid zone flooding and generous end plate thickness to preclude unstable condensing zone level changes.

Greens Power vertical channel down (VCD) designs offer a small footprint, piping economies and simplified bundle access. vertical channel up (VCU) designs offer similar space savings, easy channel and bundle removal and positive liquid seal for full length drains coolers.

Surface Condensers
Greens Power condensers are the product of the evolution of advanced technology, offering maximum thermal efficiency and a robust and economical mechanical design.

Greens Power Surface Condenser Mechanical Design Provides:
• Security against tube leakage and condensate contamination
• Protection against destructive tube vibration
• Controlled thermal expansion
• Protection of tubes and structure from impact of high energy fluids
• Control of tube loads and tubesheet stresses
• Ease of field assembly
• Optional turbine exhaust arrangements (underslung or axial)

Greens Power Surface Condenser Thermal and Hydraulic Design Provides:
• Optimised tube layout
• Conservatively designed steam lanes
• Effective removal of non-condensibles
• Maximum efficient use of available surface area
• Minimised cooling water pressure drop
• Uniform steam distribution
• Optimised condensate reheating

Greens Power provide a comprehensive range of condenser designs for rectangular and circular shell surface condensers.

Rectangular Surface Condensers are available as:
• Fully shop assembled units
•Greens Power “flat pack” design to simplify transport and to maximise on labour
content at site.
• Modular Changeout of existing condensers for life extension and improved
thermal efficiency and air extraction.

Circular Surface Condenser
Greens Power design an economically sized condenser suitable for smaller turbine ratings. The compact circular design arrangement provides for ease of transport and is available with a variety of turbine exhaust options.