Toward a Sustainable Campus Part II: Improving the Efficiency of the CNS Building Energy Systems

  • Published on
    17-Jan-2016

  • View
    28

  • Download
    2

Embed Size (px)

DESCRIPTION

Toward a Sustainable Campus Part II: Improving the Efficiency of the CNS Building Energy Systems. Nitin Rajan 07 Physics Department Ithaca College. Introduction. - PowerPoint PPT Presentation

Transcript

  • Toward a Sustainable Campus Part II: Improving the Efficiency of the CNS Building Energy SystemsNitin Rajan 07Physics Department Ithaca College

    Nitin Rajan, Allison Krasnow, Jon Harrod, Beth Clark

  • IntroductionTo understand the energy use of the CNS building in order to find ways to improve its efficiency, thereby decreasing our footprintMain Question: Can we make the building Kyoto compliant? Can we make the energy systems more efficient, saving money and decreasing our greenhouse gas emissions?

    Nitin Rajan, Allison Krasnow, Jon Harrod, Beth Clark

  • Focus: Heating, Ventilation, and Air Conditioning (HVAC)Electricity UsageHeating Fuel UsageReduce energy waste

    Nitin Rajan, Allison Krasnow, Jon Harrod, Beth Clark

  • CNS HVAC Energy UseHeating (Boiler) energy 849 million therms (measured)Cooling (Chiller) Energy 0.3 Million kWh/yr (estimated)Ventilation (Fan) Energy 3 Million kWh/yr (estimated) Energy Comparisons On average a household uses 1000 kWh of energy per month

    Nitin Rajan, Allison Krasnow, Jon Harrod, Beth Clark

  • Where is all this energy going?Boilers and Chillers with huge capacities (5 MW and 2.5 MW respectively)

    Nitin Rajan, Allison Krasnow, Jon Harrod, Beth Clark

  • Air Handler Units (AHU) The 3 main air handlers together supply 150 000 Cubic Feet of air per minute Condition and distribute the air coming from outside to control inside air quality

    Ventilation and Exhaust Fans to move the air through and out of the building

    Nitin Rajan, Allison Krasnow, Jon Harrod, Beth Clark

  • What Happens in an Air HandlerAIR INTAKETo RoomsApprox. 30% of heating energyApprox. 20% of heating energyApprox. 50% of heating energy

    Nitin Rajan, Allison Krasnow, Jon Harrod, Beth Clark

  • HVAC System

    Nitin Rajan, Allison Krasnow, Jon Harrod, Beth Clark

    Equipment

    1

    1

  • Fume Hoods

    Nitin Rajan, Allison Krasnow, Jon Harrod, Beth Clark

  • Fume HoodsOne source of energy waste identifiedAround 100 of them in CNS buildingAround 30 were on unnecessarily every time we ran a check

    Nitin Rajan, Allison Krasnow, Jon Harrod, Beth Clark

  • Energy Consumed by Fume HoodsDifficult to determine how long they are actually left onWeather conditions vary day by dayFor a fume hood left on UNNECESSARILY for 10 hours on a particularly cold day, Energy wasted = 100-300 kWhWhich represents 3-9 days of energy use by an average house

    Nitin Rajan, Allison Krasnow, Jon Harrod, Beth Clark

  • Impact of one fume hoodHere is how much energy they wasteCost in dollars: $7 for that one dayCost in GHG emissions: 79 lbs of CO2 for that one day

    Nitin Rajan, Allison Krasnow, Jon Harrod, Beth Clark

  • Answer to Main QuestionYes, we can work towards making this building Kyoto compliantTurning off fume hoods represents a huge first step in decreasing CO2 emission x% reduction in annual CO2 emission just from turning fume hoods off

    Nitin Rajan, Allison Krasnow, Jon Harrod, Beth Clark

  • Next Steps Request to Lab users: Turn the fume hoods off if you do not need them Sensitize other people as to how wasteful fume hoods can be if not used wiselyMore regular checks to be performed Further analysis of the system

    Nitin Rajan, Allison Krasnow, Jon Harrod, Beth Clark

Recommended

View more >