ACCURACY ANALYSIS IN FLOW CALORIMETRY

被引：6

作者：

GRINI, PG ^{[1
]}

OWREN, GA ^{[1
]}

MAEHLUM, HS ^{[1
]}

机构：

[1] SINTEF,REFRIGERAT ENGN,N-7034 TRONDHEIM,NORWAY

来源：

THERMOCHIMICA ACTA | 1995年 / 256卷 / 01期

关键词：

ACCURACY; CALORIMETRY; ENTHALPY; FLOW CALORIMETRY; NOVEL;

D O I：

10.1016/0040-6031(94)02165-K

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The accuracy claimed for calorimetric measurements should be given at a certain confidence level. This paper describes how the standard uncertainty of isobaric enthalpy increment measurements from a new cryogenic flow calorimeter is derived. The new calorimeter has several features that reduce the heat leakage better than previous designs. The temperature and pressure ranges covered by-the calorimeter are 133-335 K and 0.17-14 MPa. The enthalpy increment measurements have an average standard uncertainty of 0.10 kJ kg(-1) or 0.25% of the enthalpy increment.

引用

页码：9 / 16

页数：8