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BUILDING GREENP.O.DDAILY WRITINGENERGYLaw of Conservation of EnergyHEATING SYSTEMSlide 7“LOST” ENERGYTEMPERATURE & THERMAL ENERGYSlide 10GREEN ARCHITECTSBUILDING GREENSlide 13R-VALUESlide 15htp://www.dongardner.com/green.aspxWhat is the percentage of energy lost if a motor requires 10J t o move a 5N block a distance of 1.5 m?Look around the building and list three ways the building could be designed to better conserve energy.Not a substance but acts as one.Cannot be created nor destroyed.Can be stored or transferred from place to place.Law of Conservation of EnergyThe energy inputs of a system will always equal the energy outputs to a system, regardless of processes.In a standard home heating system, a machine called a boiler, burns natural gas or oil.Energy is released from the burning fuel and transferred to a drum of water inside the boiler.Radiators get hot and transfer energy to the air in the room.Water in DrumRadiatorRoom AirBurning FuelEnergy crosses a system boundary when transferred from the radiator to the room air.Heating: when energy crosses a system boundary and causes the objects outside of the system boundary to get hotter.Thermal Energy: the energy transferred.Water in DrumRoom AirRadiatorBurning FuelWater in DrumRoom AirRadiatorBurning Fuel“Lost” EnergyTo achieve maximum efficiency, we need to reduce losses.Temperature: the measure of how hot something is.Concentration of thermal energy in a substance.Temperature change = evidence that energy is transfer is taking place as thermal energy is moving from an area of high concentration to low concentration.htp://image.wistatutor.com/content/feed/tvcs/a1_96.gifhtp://www.conservewildlifenj.org/images/artmax_161.jpgA building is a system made up of interdependent subsystems.Structural elementsSupport beams & wallsHeating systemsElectrical systemsWater systems Building Inspector: government employee who knows the country, state, & city building code laws.htp://www.zoningnews.net/wp-content/uploads/2010/05/ecojay-HVAC-Zoning-thermostat-in-every-room.jpghtp://www.dhiinspections.com/Home-Inspection-Blower-Door-.htmlhtp://www.ecobuild.co.uk/exhibitor-list/profile/79/actis-insulation-ltd.htmlMATERIAL R-VALUEWood 0.91Fiberboard 2.78Fiberglass 3.90Styrofoam 3.57Cellulose Insulation3.5Mineral Wool 3.0In groups of 4, design a “Green House.” Draw a rough draft of the house and label each part that makes it “green”. Some of the things you may want to include would be the type of insulation, number of thermostats, and the energy that the house is powered by. Each group will have 5 minutes to complete this project and then a group spokesman will be chosen to present the house to the class and go over the steps they used to make the house “Green”. The presentation should be between 30 to 45 seconds

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