World leader in desiccant dehumidification system technologies

NIAGARA Niagara Blower Company, Inc.

Providing engineered solutions to heat transfer applications at process, power, steel and refinery facilities worldwide

NBCo 2013 CONFIDENTIAL 1

•Founded in 1904 • 100,000 ft2 NEW office & manufacturing facility –

Buffalo, NY • ASME / TEMA / API Code compliant

• Design - Build Engineering • Installations Worldwide

• Recently acquired by Alfa Laval

Niagara Blower Company – Heat Transfer Solutions

Black &White Thermal Imaging Camera

What is a WSAC?

Wet Surface Air Cooler

•Direct Process Heat Rejection •Closed Loop Cooler •Vapor Condensing •Liquid Cooling

Niagara Blower Company – Heat Transfer Solutions

Key Points? • Coldest Possible Process Outlet Temperature • Use Less Horsepower • Reduce Fresh Water Consumption • Smaller Footprint • Industrial Grade

Niagara Blower Company – Heat Transfer Solutions

WSAC Applications Liquid Cooling Vapor Condensing Gas Cooling

•Water •Glycol •Industrial Wastewater •Sour Water •De-mineralized Water •Stripped Water •Scrubber Waters •Mold Water •Various Liquors •Machine Oils

•Propane •Propylene •Steam •Ammonia •Refrigerants

•CO2 •Natural Gas •Air

Niagara Blower Company – Heat Transfer Solutions

Customers for the WSAC Refining Wastewater Power

•ExxonMobil •Phillips66 •Saudi Aramco •Chevron •Colonial Pipeline

•GE •Calpine •Transalta •Entergy •Progress Energy

•Enterprise •CrossTex •Lone Star •Targa •Anadarko •Oxy •Hess Corp

Natural Gas EPC •Bechtel •Worley Parsons •S&B Engineers •Jacobs •SNC Lavalin •Wood Group •URS •WillBros

•U.S. Steel •ArcelorMittal •Severstal •Alcoa •China Steel •CitiSteel

Metals

•Marathon •Valero •Motiva •Veolia •Citgo

Niagara Blower Company – Heat Transfer Solutions

CoolingTower &Heat Exchanger

AirCooled HeatExchanger

Closed Loop Evaporative Cooling

Breakdown of Cooling Technology

75F / (24C) 120F / (49C)

Niagara Blower Company – Heat Transfer Solutions

How Does the WSAC Work?

WSAC Replaces

Cooling Tower + Heat Exchanger +

Pumps & Piping Loop

Air Cooled Heat Exchanger

or

Niagara Blower Company – Heat Transfer Solutions

PRIME SURFACE BARE TUBES

•Heat Transfer Surface Area = Prime surface Bare Tubes

•No Plastic Fill •No Fins

•Standard drift rate of .02% of spray rate

WSAC

DRENCHING SPRAY RATE

Alternate Water Sources

• Plant effluent wastewater • Blowdown from cooling towers and boilers • Waste streams from demineralizers, HRSG and RO • Brackish, seawater

Niagara Blower Company – Heat Transfer Solutions

Reduce fresh WATER use!

FRP Bundle Design • Sea Water Recirculation • Non-Corrosive Material Construction

Niagara Blower Company – Heat Transfer Solutions

Niagara Blower Company – Wet Surface Air Cooler

Sea Water Recirculation

OUT

IN

WSAC

ACC

SERIES FLOW

Wet / Dry Systems

Ivanpah Solar Aux Cooler

Wet / Dry Systems

WSAC

OUT

IN

COMBINED FLOW

WET / DRYSECTION(FINNED COILS)

Ivanpah Solar Aux Cooler

• More efficient cooling / condensing – Evaporative cooler – approach within 5 °F of WB

• Water savings – Water reuse from blowdown & wastewater…$$$

• Higher cycles of concentration – Evaporate more

• Less horsepower – Pump less water

– Smaller Footprint • Lower carbon footprint • 109 years of Heat Transfer Solutions Experience

WSAC Overview