Description
SummaryThe contractor will participate in the cryogenic design of a future dark matter experiment called LZ. The dark matter experiment uses liquid Xenon as the target fluid and uses liquid and gas nitrogen for refrigeration. A conceptual design for the system exists that will be need to be further developed. The specific areas that we are looking for help to advance are listed below.
Tasks
- Development and engineering of the liquid xenon tower including heat exchangers, weir overflow, flow control valves, thermosyphon heads, and cryostat vessel. Development of a cost estimate for these items.
- Coordination with and support engineering for the cryogenic cooling and vacuum system. This includes the cryocoolers, LN2 subsystem, thermosyphon system, utility conduits to the detector, and vacuum pumps.
- Develop a cost estimate for these items with vendor quotes or other basis of estimate documentation.
- BS or MS in Mechanical Engineering or Cryogenic Engineering from an accredited institution.
- Minimum of five years relevant engineering experience with heat and mass balances, fluid mechanics, heat transfer, thermal system design, cryogenic vessel design, vacuum system calculations.
- Completed course work in Heat and Mass Transfer, Thermodynamics, Fluids Mechanics.
- Knowledge of Finite Element Analysis (FEA), CAD tools, cryogenics, vacuum, instrumentation
- Knowledge of machine shop practices as related to manufacturing and fabrication techniques
- Good verbal and written communication skills.
- Must be able to mentally concentrate on a specific task for several hours at a time.
- Must be able to use a computer to do analysis, write reports, create presentations, complete training, and complete on-line effort reporting.
- Must be able to legibly print and create fabrication sketches by hand.
- Must be able to read mechanical drawings and process flow schematics.
- Must be familiar with process flow schematics and be able to develop them.