AEROTECH ENERGY PRIVATE LIMITED

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Air-Cooled Steam Condenser Is Required To Condense The Exhaust Steam From The Turbine Into The Condenser At Constant Pressure And Temperature And Required To Maintain The Backpressure At The Turbine Exhaust Flange. Air-Cooled Steam Condenser Comprises Of Tube Bundles With Circular/Flat/Elliptical Finned Tubes Fixed At A Height Of An 'A' Or 'V' Frame Structure At An Angle Of 60 Deg. Axial Flow Fans Mounted At The Lower Vertex Of The ‘A’ Or ‘V’ Frame Throw The Cooler Air At Ambient Temperature Into The ‘A’ Or ‘V’ Frame. When The Air Passes Through The Finned Tube Bundles It Will Cool The Fluid Inside The Finned Tubes Or Condenses The Steam Inside The Tube By Reducing The Latent Heat Of Steam. Air Cooled Condenser Comprises Cells/Modules/Bays. Each Cell Consists Of The Following Major Equipment: Steam Manifold/Steam Duct From Turbine Exhaust Flange To The Air Cooled Condenser A Frame Structure Supporting The Tube Bundles Axial Flow Fans Arrangement With Gear Box And Motor Condensate & Hotwell Tank With Pumps Ejector For Extraction Of The Non Condensable Gases From The Tube Bundles Piping With Valves And Instruments As Per The Requirement Instrumentation And Electrical As Per The Air Cooled Condenser Operational Philosophy

This Engineering Note Has Been Prepared To Educate The Cooling Tower User, This Deal With A Very Specific Subject, Which Aerotech Energy Pvt. Ltd. Appeals Our Capabilities To Do The Ct Up-Gradation Projects. Aerotech Prepared The Documents So That The User Engineers Can Easily Understand The Cooling Tower Theory And Possibilities To Upgrade On Existing Cooling Towers. Cooled Water Is Needed For, For Example, Air Conditioners, Manufacturing Processes Or Power Generation. A Cooling Tower Is An Equipment Used To Reduce The Temperature Of A Water Stream By Extracting Heat From Water And Emitting It Into The Atmosphere. Cooling Towers Make Use Of Evaporation Whereby Some Of The Water Is Evaporated Into A Moving Air Stream And Subsequently Discharged Into The Atmosphere. As A Result, The Remainder Of The Water Is Cooled Down Significantly. Cooling Towers Are Able To Lower The Water Temperatures More Than Devices That Use Only Air To Reject Heat, Like The Radiator In A Car, And Are Therefore More Cost-Effective And Energy Efficient.

The High Cost Of Power Has Made Manufacturers Look Into Equipment To Reduce Power Consumption. Cooling Towers, Heat Exchanger, Humidification And Ventilator Are Areas Where A Major Saving Is Possible At Reasonable Cost For Manufacturers.Aerotech’S Aerodynamically Designed Energy Efficient Frp Hollow Axial Flow Fans Have Helped In 20% Reduction In Power Consumption And Recovering The Cost Of Fan In Short Time. Traditionally Cast Aluminum Fans Consume More Power Due To Low Efficiency And Heavy Weight. The Fans Operate Throughout 24 Hours Using Excess Power, Which Can Be Saved By Using Aerotech’S Energy Efficient Frp Hollow Bladed Fans. Aerotech Has Designed And Developed Structurally Strong Frp Hollow Fans Which Are Light-In-Weight With Help Of Usa Based Naca* Computerized Software, Having More Lift And Low Drag Airfoil Shape, Engineered Twist, Optimized Chamber To Increase The Fan Efficiency Resulting A Nominal Low Operating Cost.

The Medium To Be Cooled Is Allowed To Flow Through Tubes. Water Is Sprayed Over Tubes To Form A Water Film Surface; Cool Air Is Blown Over The Tube Surface With Help Of Induced Draft Fans Mounted At The Top. Temperature Of Both Cool Air And Sprayed Water Rises, Partial Water Will Transform From Liquid Phase To Vapor. Latent Heat Of Vaporization Water Will Carried Out Massive Heat. While, A Negative Pressure Will Be Formed Inside The Heat Exchanging Tube Cabinet Under The Effect Of Fan’S Induced Draft, Which Will Enhance The Evaporation Of Sprayed Water, Thus Increasing Heat Transfer Efficiency. Non-Vaporized Water Will Be Cooled Down During Falling Into The Circulation Water Tank. The Water Inlet Valve Will Automatically Refill Cooling Water To Keep A Certain Water Level And A Normal Circulating Operation. While The Medium To Be Cooled Remains In A Closed Circulation.

Single Row Tube Bundles Generally Are Generally Arrangements Of Flat Fin Tubes Having Single Row In Tube Bundles. Since These Tube Bundles Have Single Row That’S Why They Are Called As Single Row Fin Tube Bundles. As Compared To The Multi-Row Arrangement Single Row Heat Exchangers Have The Following Advantages: Optimal Resistance Against Freezing Less Weight Higher Heat Transfer Area Fin Tube Bundles Dimension Of These Are Generally Mentioned Below With Tube Length Varies Upto 12 Meters Depending Upon Thermal Design And Plot Area Requirement. A.) Tube Dimension: 219 X 19 (Mm X Mm) B.) Fin Dimension: 200 X 19 (Mm X Mm) C.)Tube Wall Thickness: 1.5 Mm D.) Fin Thickness: 0.25 Mm E.) Fin Height: 19 Mm F.) Fin Pitch: 11 Fpi