Comparative Temperature Distribution Characteristics and Thermal Efficiency of a Conventional Rice Cooker (CRC) and a Vapor Chamber Rice Cooker (VRC)

Viroj LIMKAISANG; Wasan SRIMUANG

Authors

Viroj LIMKAISANG Department of Applied Physics, Faculty of Sciences and Liberal Arts, Rajamangala University of Technology Isan, Nakhon Ratchasima 30000
Wasan SRIMUANG Heat Pipe Heat Exchanger Research Laboratory, Department of Mechanical Engineering, Faculty of Engineering and Architecture, Rajamangala University of Technology Isan, Nakhon Ratchasima 30000 http://orcid.org/0000-0002-2603-9232

Keywords:

Rice cooker, vapor chamber, heat pipe, energy, efficiency

Abstract

A conventional rice cooker (CRC) and a vapor chamber rice cooker (VRC) were designed and constructed in equal mass, capacity, material, depth and inside diameter. The temperature distribution characteristics and thermal efficiency of both CRC and VRC were compared. The water boiling test was conducted to calculate the thermal efficiency of both rice cookers. The results indicate that the temperature distributions of water in the rice cookers show clearly different characteristics. The VRC had a higher thermal efficiency than the CRC by around 5.57 %. Copper nanoparticles mixed in the liquid water and used as a working fluid in the VRC enhanced the thermal efficiency by around 2.02 %.

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