The development of macrolayer thickness of water in the pool boiling regime

ABSTRACT

The main purpose of this study is to analyse the phenomenon of pool boiling in water over a horizontally placed copper tube heater of 28 mm diameter. The experiment has been carried out to observe the bubble growth and departure characteristics for the heat flux range up to 40,000 W/m². The entire process is being recorded by a digital camera at different time intervals. The measured parameters have been used to determine the initial layer thickness, macro layer thickness and critical heat flux and validated with models proposed in the literature.

KEYWORDS:

• Copper
• heater
• macrolayer
• critical heat flux
• contact angle
• bubble diameter

Disclosure statement

No potential conflict of interest was reported by the authors.