Nelson Engineering Company (NEC) provides explosive site planning and operational safety consulting services.  We understand DoD, FAA, NAVFAC and NASA regulations and procedures governing explosives, propellants and pyrotechnics.  We specialize in quantity distance calculations for siting of unique industrial facilities such as: spacecraft processing facilities, ordnance and rocket propellant checkout and storage facilities, and standalone storage vessels.  We also develop and design blast mitigation techniques which include: structural protective barriers, lightning protection systems and fire protection systems.  We have extensive experience performing detailed inspections on energetic propellant storage, delivery and test systems, such as cryogens and hypergols, and proposing innovative controls and solutions to minimize risk of explosions.

Our explosives safety experience includes:

  • Performed explosives siting for spacecraft processing facilities and propellant storage at the Kennedy Space Center (KSC) Shuttle Landing Facility (SLF).  Developed blast mitigation techniques for spacecraft processing facilities and spacecraft loading operations.
  • Conducted a composite overwrapped pressure vessel (COPV) blast shield trade study analysis for Boeing at the Space Station Processing Facility (SSPF).  The scope of the trade study included blast shield calculations, cost estimates and weighted comparisons of blast protection systems.
  • Performed a Process Hazard Analysis (PHA) on the LC-37 and LC-41 liquid hydrogen (LH2) systems for the United Launch Alliance (ULA) Delta IV and Atlas V programs to assure adequate controls are in place to prevent and minimize the consequences of a catastrophic release of hydrogen, a flammable or explosive chemical.
  • Performed an inspection of Spurlock Power Station’s gaseous hydrogen (GH2) facilities for East Kentucky Power Cooperative (EKPC).  Assessed the physical condition of the GH2 system and its components.  Performed sizing calculations and verified the adequacy of all relief devices. Calculated the reaction forces exerted on relief device assembly as a result of the sudden gas flow during operation of the device and recommended additional structural support to ensure the systems can withstand the forces in the worst case fire scenario.
  • Performed explosives siting for storage of ordnance and pyrotechnics at the Atlantic Undersea Test and Evaluation Center (AUTEC) for the Naval Undersea Warfare Center (NUWC).  Developed explosive criteria for helipads and unique naval facilities.