Download Cogeneration System - International District Energy Association

Homewood Campus
Cogeneration System
Baltimore, Maryland
Presented By:
David Ashwood ‐ Director of Plant Operations Steven P. Snow, P.E. ‐ Affiliated Engineers, Inc.
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Agenda
• Johns Hopkins Overview
• Homewood Campus
• Climate Change Initiative
• Homewood Cogeneration COGENERATION SYSTEM
Overview
Global
Research
Bologna Centers Nanjing
Center
Center
Keswick
Johns Hopkins
University
Mt.
Washington
JH Health Care &
Surgery Centers
Bloomberg
School of Public
Health
`
Eastern
Homewood Campus
Kennedy Krieger
Institute
JHM
International
(4.9 msf)
(1.2 msf)
JH Community
Physicians
JH Home
Care Group
East Baltimore
Campus
School of
Nursing
Bayview
Campus
Stieff`
Montgomer
y County
Downtown
Center
D.C.
Legg
Mason
School of
Medicine
(4.4 msf)
Johns Hopkins
Medicine
Howard County
General Hospital
Peabody
Suburban Hospital
Applied Physics
Laboratory
Sibley Memorial
Hospital
All Children’s Hospital
Centers for
Global Health
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(120 locations)
Johns Hopkins University & Health System
Johns Hopkins
University
Homewood-Based
JH Affiliate Hospitals
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University Administration
Homewood Student Affairs
Krieger School of Arts and Sciences
Whiting School of Engineering
School of Education
Peabody Institute
Nitze School of Advanced International Studies
Carey Business School
Applied Physics Lab
School of Nursing
Bloomberg School of Public Health
School of Medicine
Sheridan Libraries
Johns Hopkins Hospital
JH Bayview Medical Center
Howard County General Hospital
Suburban Hospital
Sibley Memorial Hospital
All Children’s Hospital
Health Care & Surgery Centers
JH Community Physicians
JH Home Care Group (JHHCG)
JH Employer Health Programs
JHM International
JH Medical Management Corp.
Johns Hopkins
Health System
Geography
The Johns Hopkins Campuses
Nanjing
Center
Global
Research
Centers
The Columbia Center
Bologna
Center
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Organization
Admin.
Support
Vice
President
JH Facilities &
Alan Fish
Real
Estate
Office of Facilities Management
Finance &
Admin.
Plant
Operations
Carolyn Heffner David Ashwood
Finance
Budgeting
Facility
Coordination
Design &
Construction
Jim Miller
Sustainabilit
y
Davis Bookhart
Project
Management
Building / Shop Project Logistics
Services
Contract Admin
Administrative
Custodial
Services
Services
Deliverables
Management
Maps &
Grounds Services
Records
Cost Management
Utilities
Database
Management
Energy
Management
I.T. Support
Work Order
Database Mgmt.
H.R.
Admin. Support
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Parking &
Transportation
JH Real
Estate
Greg Smith
Brian Dembeck
Planning &
Goals
Parking
Service
JHRE Design &
Construction
Metrics &
Tracking
Shuttle
Services
JHRE Finance &
Admin.
Education/
Behavioral
Change
Property
Management
Acquisitions &
Dispositions
Student
Outreach
Development
Leasing &
Portfolio Mgmt.
Property Mgmt.
Asset Mgmt.
Enterprise
Support
Johns Hopkins University
• 130 year old Pre‐Eminent Teaching/Research University
• Campus – 4,900,000 gsf
• Heating – 240,000 pph
• Cooling – 12,000 tons
• Electric – 21 MW
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Climate Change Mission
Mission: To improve the environmental profile of the Johns Hopkins University by building better lines of communication among its divisions, sharing ideas and best practices, collaborating on projects that produce wide‐spread benefits, and highlighting successes to the entire Hopkins community.
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Hopkins Climate Change Committee
• President’s Task Force and 3 working groups:
– Tactics & Strategies Group
– Community Partnerships Group
– Innovation & Research Group
• Members
– JHU Scientists, Engineers, Administrators
o
o
o
o
o
Homewood
Applied Physics Lab
School of Public Health
School of Medicine
Hospital
– Non JH Participants
o
o
o
o
City of Baltimore Mayor’s Office
Chesapeake Bay Foundation
Baltimore Gas and Electric
Various Consultants
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JHU Commitments to Climate Change
• Reduce carbon emissions by 51% by 2025 – Advance energy conservation measures (ECMs) annually – Pursue Cogeneration on two main campuses
– Implement Behavior Change Program for human element
– Focus on the role of IT in developing solutions
• Create an Environment, Sustainability and Health Institute to research and implement findings
• Strengthen academic pursuits on climate scholarship
• Broaden outreach efforts in the community
– Focus on greater community benefits, assistance, and sharing
– Collaboration within the local higher education sector
• Report on JHU Web Site
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Opportunities for Emissions
Reduction by Source
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JHU ECM’s Prior to CHP and On Going
• Central Plants
– Steam to Hot Water Plant Conversion
– Low NOX (Emission) Burners
– Steam Plant Control System Upgrade
• Comprehensive Energy Conservation Program
– Detailed Investigation of Homewood
– First Phase of Improvements Included: Lighting and Motor Upgrades, VFD’s, Air Optimization, Trap Replacements, Tightening AHU Schedules, Water Conservation, Insulation Upgrades
– Second Phase Includes: Constant Volume to VAV Hood Conversions, Lighting Control Systems, Heat Recovery, Renewables
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Homewood Project Objectives
1. Reduce Campus Carbon Footprint
2. Reduce Energy Consumption
3. Reduce Operating Cost
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Utility Flow Diagram
CHILLED
WATER
POTABLE
WATER
STEAM
HEATING WATER
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NORMAL
POWER
Johns Hopkins University COMBINED
HEAT/POWER
EMERGENCY
POWER
Homewood Campus
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Homewood Campus
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Electric Cost
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Initial Screening
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Initial Screening
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Initial Screening
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Initial Screening
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Initial Screening
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Revised Final Analysis
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Revised Final Analysis
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Revised Final Analysis
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JHU CHP Process Diagram
• Annual Electric Production: 36,360,000 KWH/yr
• Annual Steam Production: 234,000,000 Pounds/yr
• Annual Carbon Dioxide Reductions: 9,500 Metric Tons/yr
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Regional Emission Reductions
Carbon Dioxide = 9,500 M. Tons Per Year
Equivalent of Elimination of 1,750 Automobiles
Equivalent of Planting 2,200 Acres of Forest (16 Homewood Campuses)
Sulfur Dioxide = 183 Tons Per Year
Acid Rain
Oxides of Nitrogen = 45 Tons Per year
Ground Level Ozone
Smog
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Features
•
•
•
•
•
•
Inlet Cooling
4.6 MW CT
Watertube HRSG
Economizer
Natural Gas Fired
Gas Booster
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Simplicity of Plant
System runs baseloaded
No additional operators
Heat rate is exactly as proposed by Solar
Gas & Electric contracts obtained through payback period
• No back end pollution controls required
•
•
•
•
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System Facts
• New plant installed as an addition to existing campus power house
• Central location
• Pre‐purchase of equipment
• Solar Centaur 50 turbine
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Results
• Operational cost savings = $1.5 million / year
• Emissions reduction of 9,500 metric tons of CO2 per year
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Air Permitting
• Baltimore = Severe non‐attainment area for ozone
• Project swiftly permitted as a “Synthetic Minor” by limiting NOx to less than 25 tons/year
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CT in Manufacturing
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Existing Central Boiler Plant
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New CHP Plant
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New CHP Plant
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New CHP Plant
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New CHP Plant
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New CHP Plant
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New CHP Plant
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CT Installation
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New CHP Plant
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New CHP Plant
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