Turbinator ElectricCHP Team of Ammonia Based Fertilizer

ProductionTeam Member: Jinrong Chen, Alastair

Simmel, Hantao Wang, Marzena Zarycki

Scribe:

Combined Heat and Power (CHP)What is CHP?

Efficient way to generate heat and power togetherWhat does CHP provide to the rest of the project?

ElectricityCooling water

Why is CHP needed?Improve fuel efficiency, power quality, and energy cost

predictabilityReduce grid investment, ratepayer investment, and system

vulnerabilitySupport competitive electric power industry structure

Our Goal“To optimize energy production and consumption of the whole

plant .“ - Prof. Perl

Block Flow Diagram

PowerBlock

BoilerFeedPrep

Cooling Water

Natural Gas

Grid

Plants

Reject (Blow Down)

Makeup Water(Frac Water)

Plants

Reject(Blow Down)

Reclaimed Water

Power Block

Power block- Gas Turbines

Microturobines - Power output ranges 50-300kW, with the electrical efficiency 25-30%( in recuperated and 15% in unrecuperated), basically very small combustion turbines( turbocharchers)Aeroderivative - they are usually more expensive than products designed and handle load changes more quickly no heavy construction.Industrial - are exclusively for stationary power generation and are available in flexible capacity range. They are generally less expensive

Power block- Steam Turbine

Backpressure Steam Turbine (non-condensing steam turbines) – produces less useful work than the condensing turbine but the steam exhaust at above atmospheric pressure used for other steam applications(Power generation efficiency 15-35%)

Condensing Steam Turbine - generally used in CHP systems, produces maximum useful work per lb of steam input (Power generation efficiency 30-40%)

Steam Turbine 

Types Backpressure/ Condensing

Power Output from 6- 250 MW

Inlet Steam Temperature 500-580°C

Inlet Steam Pressure 10-165 bar(145- 2395 psi)

Exhaust Pressure 

Backpressure 10-16 bar( 145psi-232psi)

Condensing 0.25 -1.0 bar(3.6 -14.5psi)

Cooling Water

Boiler Feed PrepWhat is boiler feed prep?

Provide pure water for boiler Why do we need boiler feed prep?

Maximize life of boiler, steam turbine, and condenser Maximize process performance and productivityReduce operation costs and maintenance expenses

Design BasisProduction: Ensure provide enough water for boilerFeedstock: Reclaimed water from cooling water systemOutcomes: removal or control of Ca, Mg, Si, Al, high

alkalinity, bicarbonate alkalinity Blow-Down

Boiler Feed PrepMain Processes

ClarificationFiltrationReverse OsmosisIon Exchange

Competing CompaniesGE NalcoSiemensVeolia

Q & A