Abstract Pulsating Heat Pipes (PHP) are promising and effective passive two-phase heat transfer devices in terms of high capability, efficient thermal control, adaptability low cost therefore they have been extensively studied the last years. Many authors estimated fluxes at evaporator condenser area only average values based on first principle considerations. In present study application an in...

A novel redundant cryocooler system, featuring two cold heads linked via separate nitrogen pulsating heat pipe (PHP) thermal switches to a common plate, is developed and performance tested. The setup allows the plate be maintained at design temperature when one of cryocoolers inactive by leveraging low conductivity static vapor in associated dry PHP as insulation from warm cryocooler. operate p...

Abstract The present work presents a multifunctional structure for space engineering application part of the TOPDESS project, funded by ESA. main aim project is design thermal control device able to deploy through passive actuation. A combined has been designed, made up Pulsating Heat Pipe (PHP) foldable heat exchanger and Shape Memory Alloy (SMA) wire. deployment SMA wire conceived be controll...

In the recent past, Pulsating Heat Pipes (PHPs) have attracted the attention of many researchers as viable candidates for enhanced heat transfer through passive two-phase heat transfer mechanism. Although a complete theoretical understanding of operational characteristics of this device is not yet achieved, there are many emerging niche applications, ranging from electronics thermal management ...

Thermal management of electronics semiconductor technology is elixir to transform dream and imagination of the designers into reality. Motivation and need for research in development of novel cooling strategies for modern electronics is of paramount importance. Pulsating Heat Pipes, a novel research topic in heat pipe science, are new two-phase heat transfer devices that rely on the oscillatory...

A multi-parametric transient numerical simulation of the start-up a large diameter Pulsating Heat Pipe (PHP) specially designed for future experiments on International Space Station (ISS) are compared to results obtained during parabolic flight campaign supported by European Agency. Since channel is larger than capillary limit in normal gravity, such device behaves as loop thermosyphon ground a...

• A 3D-printed polycarbonate-based transparent PHP was successfully fabricated. An aluminum plate bonded to the channel allows for better heat conduction. The enables flexible design and flow visualization. maximum effective thermal conductivity of 7.0 × 10 3 W/(m⋅K) obtained. To improve performance electronic devices, incorporating an cooling system in their is important. pulsating pipe (PHP) ...