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Title: Leveraging Shore-Side, Building Energy Simulation Tools for Use in the Shipboard Environment

Within the confines of the Maritime Prescreening Assessment of Conservation Technologies program, the U.S. Department of Energy's National Renewable Energy Laboratory, in collaboration with the Naval Surface Warfare Center Carderock and Philadelphia Divisions, the U.S. Department of Transportation's Maritime Administration, and the Massachusetts Maritime Academy, recently developed a physics-based modeling engine to evaluate non-propulsive ship energy consumption under different operational scenarios and technology applications, in order to enhance the Navy's ability to optimize ship operational reach and tactical performance. To accomplish this, a mature thermophysical modeling software, EnergyPlus TM, was modified for ship-related applications. This software, originally developed for use in whole-building energy consumption studies, is a free and open-source simulation program that has been used for more than two decades. The team evaluated the accuracy of the modified version of EnergyPlus by comparing results to direct measurements taken over a 6-week underway period onboard the Maritime Administration's Training Ship Kennedy. The team developed an energy model of a prescribed area of the ship and compared its performance to measured results obtained from 235 sensor points. EnergyPlus behaved well with respect to solar loading and convective heat transfer to seawater while the ship was underway. However, results suggest that additionalmore » work remains to accurately simulate seawater heat transfer while the ship is stationary.« less
Authors:
 [1] ;  [2] ;  [1] ;  [1] ; ORCiD logo [1] ;  [1] ;  [2] ;  [2] ;  [3] ;  [4]
  1. National Renewable Energy Laboratory (NREL), Golden, CO (United States)
  2. Naval Surface Warfare Center, Bethesda, MD (United States). Carderock Division
  3. U.S. Department of Transportation Maritime Administration, Buzzards Bay, MA (United States)
  4. Naval Surface Warfare Center, Philadelphia, PA (United States). Philadelphia Division
Publication Date:
Report Number(s):
NREL/JA-5500-68462
Journal ID: ISSN 0028-1425
Grant/Contract Number:
AC36-08GO28308
Type:
Accepted Manuscript
Journal Name:
Naval Engineers Journal
Additional Journal Information:
Journal Volume: 130; Journal Issue: 2; Journal ID: ISSN 0028-1425
Publisher:
American Society of Naval Engineers
Research Org:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org:
USDOE; USDOD
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 97 MATHEMATICS AND COMPUTING; buildings; physics-based modeling; energy consumption
OSTI Identifier:
1461076