slide1 n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
WATER + ENERGY PowerPoint Presentation
Download Presentation
WATER + ENERGY

Loading in 2 Seconds...

play fullscreen
1 / 40

WATER + ENERGY - PowerPoint PPT Presentation


  • 154 Views
  • Uploaded on

WATER + ENERGY. Presented by: MBO, Inc. Your Speaker for Today. Jorge Torres Coto, P.E. Building Systems Commissioning Engineer MBO, Inc. jorge@mbo1.com Brought to you by MBO, Inc. AGENDA. Link between water & energy Water Resource Management Wastewater Efficiency

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

WATER + ENERGY


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide1

WATER+ENERGY

Presented by: MBO, Inc.

slide2

Your Speaker for Today

Jorge Torres Coto, P.E.

Building Systems Commissioning Engineer

MBO, Inc.

jorge@mbo1.com

Brought to you by

MBO, Inc.

slide3

AGENDA

Link between water & energy

Water Resource Management

Wastewater Efficiency

Tools, Resources & Technologies

Benchmarking Water Resources

slide5

WATER + POWER GENERATION

  • Power generation requires 140 billion gallons of water per day
  • 40% of all freshwater in the nation
  • Power water = Agriculture water
  • Though only a small portion is used (3.3 billion gallons per day)‏
  • Power water = thermal pollution
  • 30% increase in power demand by 2025 (mostly in southwest)‏
slide6

REALITY: CHANGING OUR MINDSET

  • We need to change our mindset
  • The earth can survive without man, but man cannot survive without the earth
  • We do not own the earth and its resources, but we do own the responsibility to manage these resource so we do not threaten the earths survival and mankind's
slide8

GREEN IS NOT A COLOR

Global

Responsible

Environmental

Educational

Natural

slide9

LINK BETWEEN WATER + ENERGY

  • Energy consumption in most water systems worldwide could be reduced by at least 25%
  • 7% of the total world’s energy consumption is used to provide water services
  • Less than 1% of the worlds fresh water supply is readily accessible
  • In the US 3% of the total energy consumption is used in the water and wastewater sector
  • CARBON + WATER FOOTPRINT !

BLUE = SURFACE OR GROUND

GREEN = RAIN IN SOIL

GREY = POLLUTED

http://www.waterfootprint.org/?page=cal/waterfootprintcalculator_indv

slide10

LINK BETWEEN WATER + ENERGY

  • The problem is not going away!
    • 40% population increase in 40 years
  • EFFICIENCY
    • Supply-side
    • Demand-side
    • Comprehensive
  • Ensuring supply side water efficiency helps municipalities maintain water supplies to a growing population
  • Water authorities benefit from:
    • Lower costs
    • Ensuring energy
    • Ensuring water security
    • Reducing environmental impacts
slide11

WATER RESOURCE MANAGEMENT

  • Supply side issues
    • Leaks
    • Low c-value for pipes
    • Improper system layout
    • System over design
    • Incorrect equipment selections
    • Outdated equipment
    • Poor maintenance
    • Waste of usable water
  • Supply side solutions
    • Impeller trims
    • Leak & loss reductions
    • Equipment upgrades
    • Low friction piping
    • High efficiency pumps
    • Adjustable speed drives
    • Capacitors
    • Transformers
    • Maintenance & operation
    • Water reclamation & reuse
slide12

WATER RESOURCE MANAGEMENT

  • Reducing the amount of water consumed and maintaining the end user's level of benefit can reduce the consumer's and the utility cost's
  • Reducing demand creates more capacity
  • The customer attains no additional value in using water inefficiently
  • Demand side programs can have an impact in one year, supply side programs can take years to implement
  • Saving water through efficiency costs 1/3 less than developing new capacity
slide13

WASTE WATER EFFICIENCY

  • The treatment itself of water at accounts for 25 to 50 % of the total energy used by the WWT plant
  • Primary treatment is not energy intensive
    • Screening is good
    • Groundwater and rainwater control to limit flow and load
  • Secondary treatment is very energy intensive
    • Activated sludge is more energy intensive than attached growth type (medium sized plants)‏
    • Agitation methods are important decisions. Fine bubble diffusers can be 25% more efficient than course bubble
slide14

WASTE WATER EFFICIENCY

  • Improvement opportunities
    • Aeration control systems for optimization
    • Feasibility for oxidation ditch
    • Optimize water flow per operating hours
    • Reduce water in secondary sludge
    • Anaerobic and facultative pond systems do not use energy vs. 3-6 kW/m3 for aerated ponds
  • Analyze disinfection options
    • Chlorination
    • Ozonation
    • UV treatment
slide15

WASTE WATER EFFICIENCY

  • Anaerobic digestion = methane production
  • Methane = heat + electricity
  • Larger flows + vertical drops = hydro power
  • Water reclamation
  • Water reuse
  • Water reclamation does not change the water used by the customer, it does save energy and treatment costs
  • THE BIGGEST HURDLE . . . SUBSIDIES
  • AN UNDERVALUED COMMODITY WILL BE A WASTED COMMODITY
slide16

SANITARY & DOMESTIC USE

  • High Efficiency Toilets (HET)‏
    • 1.6 gpf vs 0.8 gpf
    • Reduce potable water use
    • Reduce treatment of water
  • Low flow shower heads
    • 2.5 gpm vs 1.5 gpm
    • Reduce potable water use
    • Reduce DHW energy
  • Efficient faucet aerator
    • 2.5 gpm vs 0.5 gpm
    • Reduce potable water use
    • Reduce DHW energy
slide17

SANITARY & DOMESTIC USE

  • Efficient Clothes Washers
    • Front vs top loading
    • 40 % less water
    • Reduce treatment of water
  • Xeriscaping
  • Drip irrigation
  • Rainwater harvesting
  • Condensate coil recovery
  • Cooling tower blow down adjustment and/or recovery
  • On-site water treatment plant
slide19

COMFORT COOLING & HEATING

  • Evaporation = 1% flow
  • 3.0 gpm / 100 T.R.
  • WBT : Fan RPM
  • WBT : water consumption
  • Evaporation : blowdown
  • WATER BALANCE:
    • M = E + B + D

CONCENTRATION RATIO:

    • CR = MQUALITY / BQUALITY

WATER SAVED

    • V = M x CRi - CRf

(Crf)(CRF-1)‏

FEEDWATER WILL DICTATE CR

slide20

NOVEL IDEAS

  • ADVANTAGES
  • Low capital & operating cost
  • Low maintenance
  • Low capital & operating cost
  • High CR
  • Higher CR
  • Reduced chemicals
  • Reduced scale
  • Reduced chemicals
  • Reduced water use
  • OPTION
  • Operational Improvements to control blowdown and chemicals
  • Sulfuric Acid
  • Ozonation
  • Magnets
  • Facility water reuse
  • DISADVANTAGES
  • None
  • Safety & Health
  • Corrosion
  • High capital cost
  • Complexity
  • Health
  • Controversial claims
  • Increased fouling
  • Lower CR
slide22

COMFORT COOLING & HEATING

  • STEAM HEATING (& PROCESS)‏
    • Inspect & Repair Steam Traps
    • 15% to 30% fail in first five years
    • Water losses and Energy losses
  • MINIMIZE BOILER BLOWDOWN
    • Typical 100k #/hr @ 150 psig
    • Reduce blowdown from 8% to 6%
    • Annual Fuel Saved = $23,007
    • Annual Water + Chemicals = $9,714
slide23

COMFORT COOLING & HEATING

  • CONDENSATE COIL RECOVERY‏
    • 0.1 TO 0.3 GPH for every ton
    • In essence it is distilled water
slide25

BENCHMARKING

Understand the process & document it

Find the best in class, worst & average

What makes it good or bad

Compare all to one another

Rubber meets the road

BENCHMARKING

PROCESS

slide32

AUDITING & TOOLS

METERING IS YOUR BEST FRIEND

YOU CANNOT FIX WHAT YOU CANNOT SEE

PERMANENT METERS CAN BECOME O&M TOOLS

AFTER AUDIT CONTINUE WITH MONITORING & VERIFICATION OF SUSTAINED MEASURES

slide33

MY WATER FOOTPRINT

http://www.waterfootprint.org/?page=cal/waterfootprintcalculator_indv

slide34

TOOLS

http://www.watergy.org

slide35

TOOLS

http://www.usgbc.org/DisplayPage.aspx?CMSPageID=1447

slide38

TOOLS

BASELINE CASE

DESIGN CASE

slide40

THANK YOU

  • MBO, Inc.
  • 4619 Viewridge Avenue, Suite C
  • San Diego, CA 92071
  • 858.751.0933
  • jorge@mbo1.com