Calorimeter for measuring the isobaric specific heat capacity of fluids and fluid mixtures by the thermal relaxation method

Journal Article · Wed Mar 15 00:00:00 EST 2006 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.2179417· OSTI ID:20778930

Tanaka, K; Uematsu, M ^[1]

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1. Center for Multiscale Mechanics and Mechanical Systems, Keio University, Hiyoshi 3-14-1, Kohoku-ku, Yokohama 223-8522 (Japan)

We present a new calorimeter for measuring the isobaric specific heat capacity for fluids and fluid mixtures based on the thermal relaxation method. The calorimeter, which is equipped with a metal bellows, works in the temperature range from 250 to 500 K at pressures up to 20 MPa and is designed to satisfy the conditions of a lumped system. The calorimeter was calibrated using water and toluene. The isobaric specific heat capacity of methanol was measured at 323.15 K and 0.1 MPa, which confirms the reliability of the calorimeter. The uncertainty is estimated to be within 2.9% at a 95% confidence level.

• OSTI ID: 20778930
• Journal Information: Review of Scientific Instruments, Vol. 77, Issue 3; Other Information: DOI: 10.1063/1.2179417; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
CALIBRATION
CALORIMETERS
FLUIDS
METHANOL
MIXTURES
RELIABILITY
SPECIFIC HEAT
TEMPERATURE DISTRIBUTION
TEMPERATURE RANGE 0273-0400 K
TEMPERATURE RANGE 0400-1000 K
TOLUENE
WATER