APPENDIX A. INSTRUCTIONS FOR USING THE ENGINEERING ANALYSIS SPREADSHEET

TABLE OF CONTENTS

A.1 INTRODUCTION .......................................................................................................... A-1 A.2 USING THE ENGINEERING ANALYSIS SPREADSHEET...................................... A-1 A.2.1 Start Here Worksheet.......................................................................................... A-1 A.2.2 Introduction Worksheet ...................................................................................... A-2 A.2.3 Results Worksheet .............................................................................................. A-4 A.2.4 Calculation Worksheet........................................................................................ A-8 A.2.5 Equipment Classes Worksheet............................................................................ A-9 A.2.6 Assumptions Worksheet ..................................................................................... A-9 A.2.7 Model Worksheet.............................................................................................. A-10 A.2.8 Design Options Worksheet ............................................................................... A-10 A.2.9 Supporting Worksheets..................................................................................... A-10

LIST OF FIGURES

Figure A.2.1 Screen shot of the Start Here worksheet. .............................................................. A-2 Figure A.2.2 Screen shot of the Introduc tion worksheet (not all content shown). .................... A-4 Figure A.2.3 Screen shot of the Results worksheet. .................................................................. A-5 Figure A.2.4 Screen shot of Design Specifications worksheet.................................................. A-7 Figure A.2.5 Screen shot of the Design Option Order worksheet .............................................. A-8 Figure A.2.6 Screen shot of the Calculat ion worksheet (not all content shown)....................... A-9

A-iA-iiAPPENDIX A. INSTRUCTIONS FOR USING THE ENGINEERING ANALYSIS SPREADSHEET

A.1 INTRODUCTION

This appendix presents instructions for us ing the engineering anal ysis spreadsheet for beverage vending machines (BVM).

The engineering analysis spreadsheet details the assumptions, methodology, and calculation of cost-efficiency curves using a de sign-option approach (see Chapter 5 of this TSD for more information on this approach). It was developed using Microsoft Excel © , which is a general spreadsheet application a nd is known to most stakeholders . In addition, the engineering analysis spreadsheet is designed to be stand-al one, and has been thoroughly documented. This appendix serves as additional guidance on how to navigate, use, and under stand the engineering analysis spreadsheet.

A.2 USING THE ENGINEERING ANALYSIS SPREADSHEET

The content of the spreadsheet is co ntained on eight primary worksheets:

 Start Here – General information on how to navigate the spreadsheet.

 Introduction – Overview of the spreadsheet.

 Results – DOE’s cost-efficiency results.

 Calculation – Detailed calculations of energy consumption and cost.

 Equipment Classes – Description of covered equipment classes.

 Assumptions – List of numerical and non- numerical assumptions used.

 Model – Description of the en ergy-consumption model.

 Design Options – Description of design options.

A.2.1 Start Here Worksheet

When the spreadsheet is opened, the Start Here worksheet will be displayed (see Figure A.2.1 ). a This worksheet contains a legend that describes the formatting used throughout the spreadsheet. This formatting is intended to high light different types of information and areas of user input ( e.g., yellow boxes are used to highlight impor tant information and green boxes with

A-1 a The eight primary worksheets are limited in width in order to fit comfortably on all monitors. Scrolling down may be necessary to see all content. Each primary worksheet has an “END OF PAGE” foot er to indicate the end of
content.dashed gray borders accept user input). The Start Here worksheet also contains navigation links to the ot her main worksheets, which are duplicat ed on each of the primary sheets for navigation.

Figure A.2.1 Screen shot of the Start Here worksheet.

A.2.2 Introduction Worksheet

The Introduction worksheet provides general background inform ation on the BVM rulemaking and a brief description of each of the other primary content worksheets (see

A-2Figure A.2.2 ). Additionally, a link is provided to th e online TSD f or reference. The buttons before each worksheet description can be used to go to those worksheets.

A-3Figure A.2.2 Screen shot of the Introducti on worksheet (not all content shown).

A.2.3 Results Worksheet

The Results worksheet provides pl ots and tabl es of cost-efficiency results for each of the equipment classes DOE examined (see Figure A.2.3 ). The top portion of the worksheet contains a button that activates a pop-up window for selecting an equipment cl ass, as well as several userselectable options for displaying different information about that class. T he “Equipment Class Selection” menu appears when the “Change Equipm ent Class” button is clicked, and allows the user to select the equipment class and mach ine size using the appropriate option buttons. Displayed below the button are the equipment cl ass description and tabulated cost-efficiency data for both the analytically derived DOE curv e and the user-defined curve. Below that information is a cost-efficiency plot with the appropriate curves.

A-4Figure A.2.3 Screen shot of the Results worksheet.

A-5Figure A.2.3 Screen shot of Results worksheet (continued).

The tabulated cost-efficiency data can be displayed without normalization, or be

norm alized by refrigerated volume (V). Use the “Data Normalization” option buttons in the top right of the screen to select.

To view or modify equipment design speci fications, press the “V iew/Change Design Specifications” button located in the upper section of the worksheet. This button takes the user to the “Design Specifications” sh eet (see Figure A.2.4), which c ontains the DOE specifications, as well as a column to input user-defined specifi cations. Initially, user design specifications are identical to DOE design specificatio ns. However, any changes made to the spreadsheet will be stored, meaning that if the spreadsheet is saved, any changes to user-defined design specifications will be saved as well. The user may change the user design specification values by entering new values in the “User” column, and th en clicking the “Save and Return to Results” button. Clicking the “Save and Return to Results” button will return the user to the results sheet and instantly update the user-defin ed results tables with the results from the user-input values. The “Set to DOE Default Specifica tions” button will reset the user-d efined values to the default DOE specifications. Press the “Cancel” button to cancel any changes and return to the Results sheet.

A-6Figure A.2.4 Screen shot of Design Specifications worksheet

The “View/Change Design Options” button in the upper middle portion of the page takes the user to the “Design Option Order” sheet, which contains a design op tions selection matrix (see Figure A.2.5 ). Use this design option selection matrix to change the baseline design options and imple mentation order of design options for th e current equipment cla ss. Design options not applicable to the current equipment class are ha shed gray, and design options changed from the previous level are highlighted in yellow. Us ing the in-cell drop-down menus, select baseline design options, then select one or more design option changes for each level above the baseline, up to 15 levels. If there are fewer than 15 design option changes, fill the remaining levels with the last configuration. To order design options automatically by payback period (shortest to longest), press the "Auto-Sort Design Options" bu tton after selecting baseline design options. To compare to the order DOE used (where applicab le), press the "View DOE Design Option Order" button, and a pop-up window containing a design op tions selection matrix (similar to the one seen in Figure A.2.5) with the design option orde r used by DOE will be displayed. To return the design option matrix to the default DOE values (where applicable), press the “Set to DOE Design Option Order” button. When complete, pre ss the “Save and Return to Results” button to return to the Results worksheet. Press the “Cance l” button to cancel any changes and return to the Results sheet.

A-7Figure A.2.5 Screen shot of the De sign Option Order worksheet

A.2.4 Calculation Worksheet

The Calculation worksheet shows detailed calculations of energy consumption and cost for the current equipment class (see Figure A.2.6 ). To select an equi pment class, click the “Change Equipm ent Class” button in the upper left of the worksheet, and on the pop up menu choose the equipment class and machine size using the appropriate option buttons. The Calculation worksheet presents tw o sets of calculations: one usi ng DOE's default values and oneusing user-input values. Switch between the two with the "Display" option buttons. The costefficiency data are calculated using the e quipment design specificati ons, design options, and assumptions determined by DOE. Case design sp ecifications are presented, followed by a matrix of design options used in the model and energy c onsumption and cost calculations. Each row in the calculation tables represents a different step in the calculation of cost or energy consumption. Each column represents a different design opt ion level, from baseline up to the maximum technology level (max tech). Columns above the max tech level repeat the max tech configuration and are grayed out. View the Mo del sheet for a schematic representation of the model linked to spec ific calculations.

A-8Figure A.2.6 Screen shot of the Calculat ion worksheet (not all content shown).

A.2.5 Equipment Classes Worksheet

The Equipment Classe s worksheet contains in formation on the equipment classes covered by this rulemaking. Details of e quipment class organization are pr esented in Chapter 3 of this TSD. To view the results or m odify the inputs for either equipment class, follow the link for that equipment class under the “Results Link” column.

A.2.6 Assumptions Worksheet

The Assump tions worksheet lists non-numer ical assumptions as well as numerical assumptions and engineering constants used in the calculation of cost -efficiency data. Nonnumerical assumptions include general assumpti ons about the analysis and design options. Numerical assumptions include c onstants and other parameters us ed in the calculation of energy use. All sources of information are documen ted in Chapter 5 of this TSD. Additional assumptions can be found for specific design op tions on their respectiv e sheets (see section A.2.8 ). The user can alter the numerical assumpti ons, which will immediately b e reflected in the tabulated cost-efficiency data in the Results worksheet.

A-9A-10 A.2.7 Model Worksheet

The Model worksheet contains a diagram of the energy consum ption model used in the engineering analysis. Details of this model are presented in Chapter 5 of this TSD. Click any part of the model to be taken to the corresponding cal culation in the Calculation worksheet. The user can return to the Model worksheet using the navigation links that are located at the top of each sheet.

A.2.8 Design Options Worksheet

The Design Options worksheet lists the de sign options used in constructing costefficiency curves. Each design option is give n an index number and a corresponding worksheet (numbered 1.0 to 20.0) where detailed inform ation is contained. Although the spreadsheet has room to describe 20 design options, only 13 desi gn options are currently employed in the model (see Chapter 4 and Chapter 5 of this TSD). Each design option has two to three levels, ranked by performance from lowest to highest. Each level is given a lettering code that is used to identify it in the design options matrix for each equipment class. Links are provided to the individual numbered worksheets, where detailed information is contained about the design options. Additional information is also prov ided in Chapter 5 of the TSD.

A.2.9 Supporting Worksheets

Several supporting worksheets are used in the spreadsheet in addition to the eight primary content worksheets. So me of these contain consta nts or other information not necessary for user interaction and are hidden from view. Those that are visible (the numbered design options worksheets) are accessible using the links provided on the primary worksheets when the information on the supporting worksh eets is relevant (see sections A.2.3

, A.2.4 , and A.2.7 ).