TANKS Emissions Estimation Software, Version 5
TANKS 5.1
Release Date: 10/9/2024
On This Page:
- What Is TANKS, Version 5?
- Audience
- TANKS, Version 5 Features
- TANKS 5.1 Updates
- How to Access TANKS 5.1
- Frequently Asked Questions
What Is TANKS, Version 5?
TANKS, Version 5 is a browser-based application that estimates volatile organic compound (VOC) and hazardous air pollutant (HAP) emissions from fixed- and floating-roof storage tanks. TANKS is based on the emission estimation procedures from Chapter 7 of EPA's Compilation Of Air Pollutant Emission Factors (AP-42). The most current version of TANKS is 5.1, and the TANKS 5.1 User Guide (pdf) explains each screen and defines the parameters entered into TANKS 5.1.
TANKS, Version 5 does not store your data within the application; data are stored within your browser's local storage. The data can be saved to your computer for longer term storage.
The TANKS 5.1 application is located here: https://TANKS.app.cloud.gov.
Audience
TANKS, Version 5 is designed for use by local, state, and federal agencies, environmental consultants, and others who need to calculate air pollutant emissions from organic liquid storage tanks.
TANKS, Version 5 Features
TANKS, Version 5 uses chemical, meteorological, roof fitting, and rim seal data to generate emissions estimates for several types of storage tanks, including:
- Vertical fixed roof tanks
- Horizontal fixed roof tanks
- Internal floating roof tanks
- External floating roof tanks
- Domed external floating roof tanks
See the TANKS FAQ for additional information about TANKS.
The TANKS, Version 5 application employs a chemical database of over 100 organic liquids, and a meteorological database of over 250 cities in the United States. TANKS, Version 5 is capable of calculating individual component emissions using user-defined speciation profiles for mixtures and petroleum liquids.
New features include the following:
- TANKS, Version 5 is a browser-based application so no downloads are required;
- TANKS, Version 5 does not require a user-name or a password;
- TANKS, Version 5 allows for the addition of meteorological data for new cities;
- TANKS, Version 5 allows for the addition of custom organic liquids, custom mixtures, and custom petroleum liquids;
- TANKS, Version 5 includes calculations for floating roof landing losses;
- TANKS, Version 5 includes calculations for tank cleaning emissions;
- TANKS, Version 5 allows export of tanks information into an Excel spreadsheet format that can be saved to the user's computer;
- TANKS, Version 5 allows the Excel spreadsheet to be imported into the application to make changes to the tanks or calculate emissions; and
- TANKS, Version 5 allows calculation of standing and working losses for multiple tanks at once and the emissions are output to an Excel spreadsheet.
TANKS 5.1 Updates
The TANKS 5.1 updates were the results of items identified by the EPA as well as comments from the general public that were sought out during the TANKS 5.0 public beta period. A summary of those documents and the EPA's response can be found here: https://www.epa.gov/system/files/documents/2024-10/rtc_tanks_final_v2_clean.pdf.
- TANKS 5.1 routine losses report updated.
- Report now includes speciated chemical results by chemical name as well as all inputs and intermediate calculations.
- Report now breaks out routine losses into deck fitting losses, deck seam losses, or rim seal losses.
- TANKS 5.1 now has an exportable cleaning and landing losses report ("Non-Routine Losses Report").
- TANKS 5.1 includes bug fixes for custom meteorological data validation (issues with negative temperatures) and general data validation issues in the TANKS 5.0 - Beta version.
- TANKS 5.1 now includes multiple Alaska locations in the meteorological locations database.
- TANKS 5.1 now allows for mole fractions up to 5 decimal places.
How to Access TANKS 5.1
The TANKS 5.1 application is located here: https://TANKS.app.cloud.gov.