Experimental study on pulsating heat pipe with functional thermal fluids

✍ Scribed by Shuangfeng Wang; Zirong Lin; Weibao Zhang; Jinjian Chen

• Publisher: Elsevier Science
• Year: 2009
• Tongue: English
• Weight: 324 KB
• Volume: 52
• Category: Article
• ISSN: 0017-9310
• DOI: 10.1016/j.ijheatmasstransfer.2009.04.033

✦ Synopsis

An experimental investigation is conducted to explore the heat-transport capability of pulsating heat pipes (PHP) working with functional thermal fluids (FS-39E microcapsule fluid and Al 2 O 3 nano-fluid), by comparing them with pure water. The test tube is a four-turn pulsating heat pipe, made of a copper tube with an external diameter of 2.5 mm, and an inner diameter of 1.3 mm. The results show that the heat-transport capability of PHP can be enhanced by using FS-39E microcapsule fluid and Al 2 O 3 nanofluid as working fluid under specific conditions. When using vertical bottom heat mode, FS-39E microcapsule fluid is the best working fluid and its best concentration is 1 wt%; when using horizontal heat mode, Al 2 O 3 nano-fluid is the best working fluid and its best concentration is 0.1 wt%.