Energy Efficiency Assessment Tools Ashok Kumar Akhil Kadiyala Vinay Kumar Nerella Ravikanth Garimella Department of Civil Engineering University of Toledo Joint A&WMA - SAME Energy Workshop June 12, 2008 firstname.lastname@example.org
Energy Efficiency • Efficient use of energy to obtain desired outputs that involves using alternative technologies operating at lower energy inputs for same purpose.
Energy Assessment • A procedure to assess the power consumption with respect to each source. • Basic steps: 1. Determining the amount of energy being consumed for each process/activity. 2. Determining the scope for energy savings and the cost it takes to implement the activities.
Energy Equation Energy Gap = Supply – Demand Total energy production and consumption, 1980-2030 (quadrillion BTU) Source: EIA’s Annual Energy Outlook, 2007
Opportunities to Reduce Energy Consumption • Proper selection of optimal systems. • Adequate maintenance of energy using systems. • Understanding energy costs.
Energy Efficiency Act 2007: Enhance Energy Efficiency • Optimize energy efficiency. • Improve environmental performance through advanced technologies. • Train engineering and research students to conduct energy assessments.
Classification of Energy Assessment Tools • Motor Systems • MotorMaster version 4.0.6 • Energy Consumption Assessment • Energy Assessment Sheet (EAS) • Plant Energy Profiler for the Chemical Industry (ChemPEP Tool) • EnVinta One-2-five • Building Sustainability Tool • Virtual Grower • HVAC Systems • Hybrid HVAC System Design Tool 1.0 • Building Advice • Fan System Assessment Tool (FSAT) • Combined Heat & Power Application Tool (CHP) • Process Heating Assessment & Survey Tool (PHSAT) version 2.0
Classification of Tools (contd.) • Related HVAC Systems • Chilled Water System Analysis Tool (CWSAT) version 2.3 • Steam Systems • Pumping system assessment tool (PSAT) • Air Master+ version 1.2.0 • Emission Calculations • NOx and Energy Assessment Tool (NxEAT) • Emissions Reduction Calculator • DOE (EIA site) • Sustainability Tools • LEED • BASIX • ENVEST
Energy Assessment Tools • Energy Assessment Spreadsheet • Hybrid HVAC System Design Spreadsheet • Building Sustainability Tool • EnVinta One-2-five: ODOD • MotorMaster: DOE
Pollution Prevention Tools Web Site The tools can be accessed at the link given below: http://p2tools.utoledo.edu/ppistools.htm
Energy Assessment Spreadsheet (EAS 1.0) • Provides a complete break-up and summaries of the total annual energy consumption and cost. • Helps in identifying avenues for energy and cost savings. • Includes separate sections for the major areas of energy consumption – lighting, motors, and HVAC systems.
EAS 1.0 • Lighting section has three worksheets – Lighting Data, Lighting Cost, and Lighting Cost Reductions. • Motors section has two worksheets – Motors and Motor Operating Cost. • HVAC systems section has two worksheets – HVAC systems and HVAC systems operating cost.
Lighting in EAS 1.0 • Lighting Data • Lighting Cost • Lighting Reduction
Motors in EAS 1.0 • Motors worksheet • Motors operating cost worksheet
HVAC in EAS 1.0 • HVAC system worksheet • HVAC system operating cost worksheet
Hybrid HVAC System Design Spreadsheet • This tool is applicable to offices and manufacturing plants. • Various sections in the tool are Input, Walls & Windows, Lighting, Final sheet, and User’s guide. • Helps the user to incorporate a natural ventilation system into a mechanical ventilation system during the design process.
Hybrid HVAC 1.0 Input sheet Walls & Windows Worksheet
Hybrid HVAC 1.0 Final Sheet User’s Guide
Lights • Washer
Dish Washer • Refrigerator
Showerhead • Faucet
Toilet • Window
General Equations used in Tool Development Lighting Appliances Fixtures Insulation
General Equations (contd.) Motor Efficiency Equation for estimating replacement air heating costs on hourly basis Equation for estimating replacement air heating costs on yearly basis
Tackling Energy Management - Strategically Traditional Approach “+” One-2-Five Approach • Tactical, Project Basis • No context of ongoing Mgmt System • No Long-term Sustainability • Authorities not Commensurate w/ level of Responsibility or Accountability • Strategic, Program Basis • Integrated to Business / Processes • Continuous Improvement Functions • Balanced Organizational Structure, Process, People, and Systems
MotorMaster • The U.S DOE MotorMaster helps to analyze motor and motor system efficiency for all the motors in a plant and suggest replacements for less energy efficient units. • The program generates a payback period for the motors to replace existing motors with more efficient motors.
Case Study 1: Energy Survey For an Automobile Parts Manufacturing Facility • Areas Investigated • Lighting • Motors • HVAC systems • Water heaters • P2 Tools used • Energy Assessment Spreadsheet • HVAC Checklist • MotorMaster • Emission Reduction Calculator
Case Study 2: Energy Assessment for a Greenhouse at Sandusky, Ohio • The objective of the assessment was to optimize the new greenhouse heating system for solar, electrical and natural gas energy performance and to significantly reduce consumption of the nonrenewable electric and gas resources. • The assessment produced an estimation of $51,000 as energy savings annually. Virtual Grower Software from the USDA
Conclusion • $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ • Energy assessment tools are available online for both residential and industrial sectors. • It is possible to reduce energy costs. • $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
Acknowledgements • US EPA (Mr. Phil Kaplan and Ms. Rita Garner) • OhioEPA (Mr. Bill Narotski) • ODOD (Mr. J. Greenway) • EISC (Mr. Rick Mazur) • TechSolve (Ms. Mary Beth Holley) • CAMP (Dr. A. Gus Eskamani) • EWI (Ms. Margaret A. Hiermer) • UT graduate students
References A. Kumar, S. J Thomas and S. Ojha, “Pollution Prevention Tools For Small And Medium Sized Industries”, CD for Proceedings of the 2002 Conference, A&WMA S. J. Thomas, A. Kumar, and R. Pendse, “Development of a Hybrid Ventilation System using Natural Night Time Ventilation for Cleveland, Ohio”, Paper # OS-02-25, Proceedings of Ohio Air Pollution Research Symposium, 2002 S. Ghose, A. Kumar, and C. Varadarajan, “Application of Pollution Prevention Tools in Energy Efficiency Assessments”, Paper # 69805, CD for Proceedings of the 2003 Conference, A&WMA http://baseco.com/publications.html http://www.energy.ca.gov/glossary/glossary-e.html http://www.solarenergy.org/resources/energyfacts.html http://science.house.gov/legislation/leg_highlights_detail.aspx?NewsID=1984 http://www.eere.energy.gov/buildings/info/components/lighting/lightingcontrols/index.html http://www.eere.energy.gov/consumer/your_home/energy_audits/index.cfm/mytopic=11170 http://p2tools.utoledo.edu/ppistools.htm
Other Useful links http://www1.eere.energy.gov/education/adult_education.html http://www1.eere.energy.gov/education/report_resources.html http://www.consumerenergycenter.org/index.html http://www.energy.ca.gov/efficiency/financing/index.html http://www.solarenergy.org/resources/links.html http://www.quia.com/rd/6920.html?AP_rand=539388205 http://www.eere.energy.gov/buildings/ http://www.eere.energy.gov/buildings/tools_directory/subjects_sub.cfm