xMLI Design Guide

Design Guide Overview
Quest Thermal Group and Ball Aerospace and Technologies Corp have developed a next generation multi-layer insulation (MLI) technology called Integrated MLI (IMLI).  IMLI is based on discrete spacer technology that produces a robust, repeatable, precisely controlled multilayer insulation with lower heat leak per layer than traditional netting-separator MLI.

This design guide supplies interested parties and perspective customers tools to evaluate the advantages IMLI offers over traditional MLI and make system decisions for IMLI performance.  Determining program specific requirements and prioritizing the level of importance will help guide decisions for configuring a suitable IMLI system.

IMLI can be configured to optimize for thermal performance, mass, thickness, thermal conductivity, e* (effective emissivity), or structural load bearing requirements.  There are a number of ways to meet specific requirements and design tradeoffs can be made to optimize for a given program application.

This Design Guide describes the IMLI system, discusses IMLI advantages over traditional MLI, describes thermal modeling inputs for SINDA-like thermal programs, discusses modeled heat fluxes and measured results (predictability), provides information on vibe and depressurization testing, and delves into IMLI design criteria for the thermal designer.

The xMLI Design Guide contains proprietary and confidential information, and accordingly is available to clients with an established relationship to Quest Thermal or Ball Aerospace. Please contact Alan Kopelove (see Contact info) to discuss your application and requirements.