~~~ Refrigeration System Analysis ~~~
Energy Control Equipment has developed a method for analyzing a customer's refrigeration system to accurately predict the cost, the savings, and the payback time for the installation of a Frigitek system.  The analysis system is based on Microsoft Excel, and comprises more than 20 separate sheets.  There are separate Spreadsheets for Single-Phase and for Three-Phase Frigitek systems.

The basic data required for the analysis are:

       Voltage and Amperage per motor (Single-Phase)
       Horsepower per motor (Three-Phase)
       Number of motors per evaporator
       Number of thermostats in the room
       Number of evaporators per thermostat
       Electricity cost per kilowatt-hour

Additional input takes into account the operation time percentage, the estimated shipping and installation costs, the percentage of time the room is being cooled, and even the tax on the equipment cost!  And, certain spreadsheet cells with pre-set data may be modified if the engineer feels that he has more specific data for the installation.

Typically, one of our Sales Representatives will collect this data during a visit to the customer, but, if a customer sends the data to us directly, the process can be accelerated.

The Analysis Spreadsheet has three different sections -


          This is the technical area, for the engineers.


          This is for the managers and money people.


          This is used with the Rebate Application.



Here are sample sheets for each section of the Analysis Spreadseet -

                         Single-Phase Analysis - Page 1,   Single-Phase Analysis - Page 2
                         Three-Phase Analysis - Page 1,    Three-Phase Analysis - Page 2

                        Single-Phase Summary
                        Three-Phase Summary

                       Single-Phase Rebate
                       Three-Phase Rebate

The Room Analysis also has a Technical Explanation Sheet which explains the various calculations used to determine the savings.  Each important cell on the Room Analysis sheet has a small number in parentheses which refers to one of the descriptions on the Explanation Sheet.  The Explanation Sheets are available here. -
(Single-Phase Technical Explanation)  (Three-PhaseTechnical Explanation ).

For a complete description of the design process for a typical installation, see our Design Process page.

In some instances, we will release the Spreadsheet to qualified persons, so they can do the analysis on ther own computers.  Contact ECE for more information about the release of the Spreadsheet.
 
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