Energo is a highly recognized EPC contractor for Balance of plant packages, material handling systems & equipments and condenser cooling systems.
 

Based on our extensive research and direct experience, we have developed most efficient cooling systems for our associates. As an outcome of our prowess in the cooling solutions we have successfully designed and engineered more than 200 Dry Condenser Cooling projects ranging from 25 MWth to 1500 MWth of heat load around the world.

Energo is adept in catering to all the cooling related needs of power and process industries with complete and seamless service from design to final approval including supplier evaluation, local production support, local erection and commissioning advice, performance testing and operator training. We provide:

Direct Dry Condenser Cooling

Direct Dry Condenser Cooling (ACC) consists mainly of following subsystems:

  • Steam Condensation System
  • Air Evacuation System
  • HEX Tube Cleaning System

The steam expanding in the steam turbine increases in specific volume as it passes through the stages, exhausting about 1000 times the inlet volume. Meanwhile, the exhaust steam energy has dropped down to such a level that further economical use of it is not possible anymore. In order to break the cycle, the condensation heat in the exhaust steam has to be discharged via condenser to fluidize the cycle media.

The condenser therefore plays a crucial role, serving as the water/steam cycle as the main heat sink and allows for a closed system configuration. Like the steam boiler, the condenser serves as a separating interface between gaseous and fluidic phase in the water/steam cycle.

 

Function

The cooling air flowing through the tube bundles extracts the vaporized heat of the exhaust steam guided through the exhaust steam duct and distribution system to the condenser tube bundles. From the steam distribution duct at the top of the A-type condenser modules the steam passes first through the parallel flow tube bundles where partial condensation is achieved (approx. 80%). The condensate forms drains, parallel to the direction of the steam at the bottom of the tube bundled into the condensate collector.

Salient features of the ACC equipment:

  • High efficiency and reliability
  • Low energy consumption in all conditions
  • Low vibration of air moving system
  • Robust and simple design
  • All welded design (except manholes, inspection holes etc.)
  • Maximized shop pre-assembly, inspection and testing
  • Fast erection and commissioning
  • Safe and economic operation
  • Easy maintenance
 

A-Frame Direct Air Cooled Condenser

Modularized A-Frame design is the most prominent Air Cooled Condenser among power plants of all size and capacity. The integral features of our Air Cooled Condenser are long term mechanical and thermal integrity, excellent resistance against corrosion and freezing, reliable operation, low maintenance and minimum power consuming fan.

The Fin tube is the core technology of the Air Cooled Condenser, and is available in three basic classes:

Single Row Condenser (SRC®) elongated, flat tube with brazed aluminium fins:

  • Rectangular/ Oval Carbon Steel tubes with Al fins
  • Has larger heat transfer area per bundle
  • Makes design of ACC more compact
  • Used for higher rating plants  150 MW for techno-commercial reasons

Multi Row Galvanized (MRG), oval tube with hot dip galvanized steel fins:

  • Larger heat transfer area on both tube and fin side
  • Lifespan of more than 30 years
  • Cleaning with high pressure water jet up to 120 bar

Multi Row Condenser (MRC)

  • Round tube with aluminium fins – oval tube with hot-dip galvanized steel fins
  • Circular Carbon Steel tubes with Al fins
  • G’,’L’ type fins
  • Provision for use of alternate tube/fin materials such as Copper, SS and Brass
  • 3 or 4 Tube row design
 

Project Details (Design/Engineering/Supply/E&S)

Energo has exclusive tie-ups with prestigious clients to provide the best cooling solutions to Power and process industries. Following are a few of our business associates around the globe:

 

Direct Dry Condenser Cooling

We extend our Dry Condenser Cooling service to our clients in:

Europe

  • Damhead Creek (UK) - 700 MW power station
  • Corby (UK) - 650 MW PowerStation
  • Monterrey (MEX) - 2 x 300 MW power stations produced by ABB
  • Shotton  (UK) - 300 MW Coal Fired TPP
  • Rye House (UK) - 100 cell Air Cooled Condenser for a 750 MW  CCPP
  • Enfield (UK) - 25 cell Air Cooled Condenser for a 400 MW CCPP
  • Elean (UK) - 35 MW  Coal Fired TPP
 

China

  • Tianfu Power station - 2 x 330 MW , Client CHEC
  • Shahe Power station - 600 MWE, client Shuangliang Company
  • Beiyuan Power station - 2 x 125 MWE, client Shuangliang Company
  • Shahe Power station - 4 x 150 MWE, client Shuangliang Company
  • Taiyuan Coke  Oven Project - Client Shangxi Cooling Systems
Indirect Dry Condenser Cooling

Indirect dry cooling combines the benefits of a dry cooling tower with a steam surface condenser. This type of system is particularly well suited for large power plants. The integral features are:

  • Zero power consuming fans (little power consumption in water loop)
  • Separate loop for steam and cooling water to avoid contamination of high water treatment
  • No visible plume
  • Reduced noise
  • Few rotating parts translates into low maintenance along with high availability
  • Tall concrete shell to avoid hot air re-circulation
  • Option to install the Flue Gas Desulfurization (FGD) unit inside the tower

Services

 

Performance Enhancement

We provide following services to enhance the performance of your plant:

  • Removal of fouling to restore the air flow
  • Reduction in fan inlet pressure loss, by minimizing cross wind, to have more air for cooling
  • Optimization of process control
  • Optimization of fan performance
 

ACC Bundle Cleaning

Salient features of ACC Bundle Cleaning:

  • Noise reduction
  • Designs and new equipment
  • Surveys, performance testing and commissioning
  • Up-grades and optimization
 

Following Services imporove performance of the systems through

Removial of fouling

ACC Bundle Cleaning

Advantages

  • Removal of fouling to restore the airflow
  • Reduce fan inlet pressure loss, by minimizing cross wind, to have more air for cooling
  • Optimize process control
  • Optimize fan performance
  • Significant improvement in efficiency

Heavy fouling

After Cleaning of Tubes