Challenges for Quality Control in Temperature-Controlled Import Supply Chains

Technology provides offline and real-time visibility on the conditions of the cargo in the transport chain and creates opportunities to intervene in the supply chain execution to safeguard the quality of the products. However, end-to-end supply chain solutions to monitor and guarantee real-time product quality are lagging in implementation. The...

Development of ductile cementitious composites incorporating microencapsulated phase change materials

Abstract In the past two decades, much research has been devoted to overcoming the inherent brittleness of cementitious materials. To that end, several solutions have been proposed, mainly utilizing fibres. One of the most promising classes of materials is strain hardening cementitious composite (SHCC). It utilizes PVA fibres, and it is...

Feasibility demonstration of a sensor for High-Quality two-phase flow

Two-phase flow heat transport systems for the Columbus Space Platform and the Space Station are expected to incorporate systems to control the liquid flow rates into evaporative cold plates. Candidate components for such a control system are sensors monitoring the (very high) mixture quality at the cold plate exit lines, control algorithms and...

Considerations concerning a thermal joint for a deployable or steerable battery radiator for the Columbus Polar Platform

Different concepts for a moveable thermal joint are described and discussed with respect to the applicability in a dedicated deployable or steerable heat pipe radiator system to handle the waste heat of the NiH batteries of the Polar Platform. Concepts which are identified as possible candidates for near-term deployable radiator development are:...

Sensors for a system to control the liquid flow into an evaporative cold plate of a two-phase heat transport system for large spacecraft

Two-phase flow heat transport systems (thermal busses) for the Columbus Space Platform and the Space Station are expected to incorporate systems to control the liquid flow rates into the evaporative cold plates. Such a control system consists of a sensor that monitors the cold plate (performance), a control algorithm and an actuator i.e. a valve...

An improved flat front model for a gas loaded variable conductance heat pipe

A uniaxial flat front--"theory is presented for a gas loaded variable conductance heat pipe. The theory takes into account the inertial effects of the moving vapour, which can grow large under certain circumstances, but neglects the axial heat conduction of the wall and wick. A limited number of numerical examples indicates excellent agreement...