Anhydrous Ammonia Nurse Tank Stress and Service Life Research Study

Carolan, Michael; Sullivan, Laura; Raney, Mark; Skrzypczak, Andrew

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Anhydrous Ammonia Nurse Tank Stress and Service Life Research Study

2026-05-29
By Carolan, Michael ; Sullivan, Laura ; Raney, Mark

File Language:

English

Details

Creators:

Carolan, Michael ; Sullivan, Laura ; Raney, Mark ; Skrzypczak, Andrew
Corporate Creators:

John A. Volpe National Transportation Systems Center (U.S.)
Corporate Contributors:

United States. Department of Transportation. Pipeline and Hazardous Materials Safety Administration
Subject/TRT Terms:
Publication/ Report Number:

DOT-VNTSC-PHMSA-26-01
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Final Report
Corporate Publisher:

John A. Volpe National Transportation Systems Center (U.S.)
Abstract:

As part of a research program to improve the safety of non-specification nurse tanks used to transport agricultural anhydrous ammonia, the Pipeline and Hazardous Materials Safety Administration (PHMSA) sponsored the Volpe National Transportation Systems Center to perform a two-phase research study. The objective of the research was to better understand the performance, service life, and stresses of nurse tanks currently in operation. The research encompassed a literature review of existing regulations and standards for anhydrous ammonia packagings, an analysis of anonymized nurse tank inspection data, and analyses of tanks subjected to internal pressures combined with various 'G' loads (representing vertical, lateral, or longitudinal accelerations). Additionally, the study reviewed fatigue screening methodologies and established initial estimations of the load cycles and magnitudes that repeatedly occur during a nurse tank's normal operating life.
Format:

PDF
Download URL:

https://rosap.ntl.bts.gov/view/dot/92004/dot_92004_DS1.pdf
File Type:

[PDF - 7.48 MB]
Collection(s):

Volpe Center ; PHMSA Collection
Main Document Checksum:

urn:sha-512:7c303c82272b99ab2d15ca79add12ec31eeec2e7394330d0579086b74e34a3e5d469e1674a3a59cd5c55820f3111c96ca7902c3771e2b964a9c6ac1d20a16bc0

File Language:

English

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