On Demand Water Heater An Improvement on the Existing Electric Heater.

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Presentation transcript:

On Demand Water Heater An Improvement on the Existing Electric Heater

Introduction

Problem Background

Traditional Water Tank Heaters Foam Insulation

Electric-Resistance Instantaneous Water Heater FLOW OUTFLOW IN

Tankless Water Heater

Electric-Resistance Tankless Water Heater

Criteria for Success

Possible Solutions: More Insulated Pipes

Cold Water Flow Hot Water Flow KEY Tank Water Heater Appliances Heat Lose Primary Source of Shower Temp Fluctuations Typical Plumbing Schematic for a Single Family Dwelling Ground Water Inlet

Possible Solutions: Modified Mixer Valve

Possible Solutions: Pros and Cons Thus Far ProsCons More Insulated Pipes - Easy to buy and install - Less wait time for hot water - Tearing down parts of walls in kitchen, bath, adjoining rooms where pipes may be found - Still fluctuation - about 4º F retention Modified Mixer Valve - No fluctuation - Installation in one place - Still wasted water and energy - Existing simpler version

Possible Solutions: To the Source

Possible Solutions: Types of Hot Water Tanks Top Choice: Electric

Possible Solution: On Demand Water Heater

The Ideal Solution Implication of fin system stemming off of the cartridge heater

The Ideal Solution Pre-manufactured Cartridge with Fin SystemEasy Installation into Piping

The Ideal Solution

Schematic of our Design

Research Conducted P = (m/t)C∆T Temperature Out Max Energy neededMinimun Specific Heat H 2 O J/g◦C Flow Rate (gram/sec) Temperature ◦ C Min (ground water ◦C ) Max ◦C J/sec PPower mMass tTime CSpecific Heat ∆TChange in Temperature

Amperage

Digital Interface Calculations to determine effective materials Optimal Fin design Most Effective Cartridge Heater Recommendations for Future Work

Conclusions & Discussion Tank Heater Instantaneous Block Heater On-Demand Fin System

Questions?

Acknowledgments and References "Electric Tankless Water Heaters." Tankless Water Heaters American Tankless Water Heaters. 28 Apr "Top-Rated Water Heaters." Consumer Guide to Home Energy Savings: Condensed Online Version. December, American Council for an Energy-Efficient Ecconomy. 28 Apr "EERE Consumer's Guide: Insulate Hot Water Pipes for Energy Savings." U.S. Department of Energy: Energy Efficiency and Renewable Energy. 12 September Feb “Estimating Water Usage Guidelines.” Wholly Water Mar Ground Water & Drinking Water. 28 Nov U.S. Environmental Protection Agency. 6 Mar "Tankless Water Heaters." Tool Base Services. 25 Feb "Water Heating." Energy Efficiancy and Renewable Energy. U.S. Department of Energy. 1 Feb "Water Heating." Minnesota Propane Gas Association Feb