advanced gas technology an advanced heat recovery system

Place your chosen

image here. The four

corners must just

cover the arrow tips.

For covers, the three

pictures should be the

same size and in a

straight line.

Advanced Gas Technology

An Advanced Heat Recovery System

for Commercial and Industrial Steam Boilers

Christopher A. Cavanagh, PE

Principal Project Manager

UK Electric

UK Gas

National Grid Overview

Customers

US – 8 Million

UK – 11 Million 2nd Largest US Utility

Pipes & Wires

US – 125,000 miles

UK – 215,000 miles

Largest UK Utility

Service Areas:

Gas

Both Electric and Gas

National Grid Gas and LIPA Electric

System

Electric

Agenda

Introduction

Technology Description

The Transport Membrane Condenser

Demonstration Results – Richardson Brands Candy

Energy Efficiency Program Evaluation

National Grid Energy Efficiency Programs

Evaluation of a Hypothetical Ultramizer Installation

Best Applications

Other Uses for the TMC

Q & A

Agenda

Introduction








Q & A

National Grid New York Gas Product

Development

Distributed Generation - Micro CHP

Yanmar 15 kW

Climate Energy – 1.2 kW Residential

Appliance

Fuel Cells – Plug Power

Alternative Fuel Vehicles

CNG Hydraulic Hybrid Garbage Truck

Hydrogen Blends

Efficiency

Commercial Steam Production (aka Super Bolier)

Introduction

A new Advanced Heat Recovery System for commercial and industrial fire-tube boilers

New installations

Retrofit

Recovers heat and water from boiler flue gasses

Reduces overall emissions production

Criteria pollutants (NOx)

Greenhouse gases

Agenda

Introduction







Best Applications


Q & A



Conventional economizers first cools boiler flue gas to within about 20 to 50°F

of its dew point

Flue Gases from natural gas combustion passes over membrane outer surface

with boiler make-up on the inside. (not dual-fuel). The TMC recovers about 15-

40% of the available moisture in flue gas.

Water condenses in the micropores of the ceramic membrane at a temperature

above the normal condensation point

(dew point) because of the phenomenon of

capillary condensation.

Avoids corrosive condensate and contaminants (O2 & CO2)

Technology Development


Initial Partners

History

2000 Concept Development at GTI.

2002 Cleaver Brooks Participation

2007-9 Initial Site Demonstrations (4 – CA,UT, AL)

2010 National Grid Demonstration at Richardson Brands

Commercialization

Licensed Nationally to Cannon Boiler Works of PA by GTI

Ultramizer see http://www.cannonboilerworks.com/ultramizer.html

NYSERDA Program Support - 2012

http://www.cannonboilerworks.com/ultramizer.html

http://www.cannonboilerworks.com/ultramizer.html

Agenda

Introduction







Best Applications


Q & A

Demonstration

Richardson Brands Candy

New Cleaver

Brooks 238 HP Fire-tube

boiler at 140 psig

Replaces

steam supply

from neighboring

Beechnut plant

Commissioned January 2011

Demonstration


Canajoharie, NY

Steam Production

High and low

pressure

economizers

Low NOx burner

(9 ppm)

Limited headroom

Demonstration


Demonstration


7-8 inches Hg vacuum

Demonstration Results

System monitored Jan 2011 to April 2011

RBC Measured Fuel-Steam Efficiency : 92.3% May 2011

13-15% improvement attributable to the TMC

0.65 gpm water recovered at 100% firing rate

Flue Gas temperature reduced from 5151oF overall to 119oF

Good reliability

Minor control issues resolved

Vacuum leak in one module, replaced.

Demonstration Results

300 Boiler HP AHRS Energy Savings

4.0

8.0

10.0

6.0

16.0

14.0

12.0

Sim

ple

Payb

ack*

* Typical unsubsidized simple payback assuming a large firm gas customer paying a total of $10.70 per DTH not including water savings.

2.0

300 Boiler HP AHRS Water Savings

* Typical water costs are range from $3.45 to $10.30 per 1,000 gallons Water recovery is about 4.5 gallons water per 1,000 scf gas input

Agenda

Introduction







Best Applications


Q & A

National Grid operates gas and electric programs approved by public utility commissions in all states served

New York

Massachusetts

Rhode Island

Since inception of energy efficiency programs:

More than 4.7 million National Grid customer efficiency projects completed in New England, saving more than $3.6 billion in energy costs

Programs save customers over $300 million annually

Over $1.5 billion invested in efficiency

Savings targets double between 2010 and 2012

Least cost procurement legislation approved in MA and RI within last two years

Reducing Reliance on Traditional Energy

Sources

ENERGY STAR®

Partner of the

Year — Energy

Efficient Program

Delivery

Energy Efficiency Program Evaluation -

MASSACHUSETTS

Customer Name

Project Description

Existing or Base Case

Condition Description

Proposed Description

State

Fuel Type

Program

Measure Description

Measure Code HTGO

Default Life 15

Life 20 overrides default measure life

Electric PA NSTAR Elec

Gas PA National Grid Gas

Conventional Steam Boiler at 80% Efficiency

Super Boiler 300 HP Steam with Ultramizer Heat Recovery

Dave Gaudet

MA

Utility Contact

Gas 000000Application ID

781-907-1560Phone

Heating Other

Retrofit

Massachusetts Customer in Boston

Super Boiler

Funding Type


MASSACHUSETTS

Total Equipment Cost 193,000$

Total Labor Cost 150,000$

Total Cost 343,000$

Installed kW (CHP ONLY)

CHP Measure? No

This project is eligible for gas and/or electric incentives. Please contact your PA for

more information

COST DATA INPUTS


MASSACHUSETTS

Annual Oil Savings (mmbtu)

Annual Propane Savings (mmbtu)

Annual Water Savings 400,000 (gallons)

Annual Sewer Savings (gallons)

Other Annual Benefits ($)

Other One-Time Benefits ($)

ANNUAL NON ELECTRIC NON GAS BENEFITS (COSTS) INPUTS


MASSACHUSETTS

Gas - Seasonal Heating (therms)

Gas - Year Round Load 52,566.0 (therms)

Gas - All (Both of the above) (therms)

Total 52,566.0 (therms)

ANNUAL GAS SAVINGS (INCREASES) INPUTS


MASSACHUSETTS

TRC BCR:

ELECTRIC INDICES

LIFETIME MWH

LIFETIME kW-YEARS

ELECTRIC UNITS

CALCULATED

VALUES

AUTHORIZED

VALUES

ELECTRIC INCENTIVE -$

$/ ANNUAL kWH: N/A

$/UNIT: N/A

GAS INDICESLIFETIME THERMS

GAS INCENTIVE 78,849$

$/ANNUAL THERM 1.50$

PAYBACKS WITHOUT INCENTIVE

ELECTRIC

GAS

TOTAL

CALCULATED AUTHORIZED

TOTAL INCENTIVE: 78,849$ -$

ELEC PAYBACK N/A N/A

GAS PAYBACK 4.37 5.67

PAYBACK W/INCENTIVE N/A N/A

DUAL FUEL COST ALLOCATION

ELECTRIC INCENTIVE N/A -$

ELECTRIC BENEFITS

GAS INCENTIVE N/A -$

GAS BENEFITS

-

1,051,320

-

-

2.31

100%

5.67

5.67

N/A

N/A

New England Economics Super Boiler

MA RI

Equipment $193,000 $193,000

Installation $150,000 $150,000

Total Cost $343,000 $343,000

Incentive $78,849 $157,698

Net Cost $264,151 $185,302

Therms Saved 52,566 52,566

Dollars Saved $60,451 $60,451

Payback 4.37 3.07

Annual IROR 22.88% 32.62%

Agenda

Introduction







Best Applications


Q & A

Best Applications

High Operating Hours

Target 6,000 hrs per year at 80% firing rate

Matched to boiler make-up rate. Make-up (% of feedwater):

Hospital 10-20%

Multi-family 3-15%

Industrial varies 4% to 100% (RBC > 50%)

Maximum Benefits above approx. 15% make-up before TMC.

Minimum efficiency benefits approximately 85% of maximum

benefits down to 1.2% make-up water

Agenda

Introduction







Best Applications


Q & A

Other Potential Uses for the TMC

Water-tube boilers (e.g. Nebraska Boiler)

High pressure superheated steam

Fuel flexible

Energy and Water Recovery from Flue Gasses and Waste Streams (non-boiler)

Open-air dryers employed in food processing (e.g. tortilla manufacturing)

Commercial cleaners

Sludge processing

High Efficiency Cogeneration (60- to 5,000-kW)

Stream Driven

Gas Turbines with Heat Recovery Steam Generators

Residential Humidifier

Agenda

Introduction








Q & A

Going Forward

With your help we can lead the way in creating the

climate for change

nationalgrid [email protected]

advanced gas technology an advanced heat recovery system

Documents