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Title: Measurement uncertainty of adsorption testing of desiccant materials

The technique of measurement uncertainty analysis as described in the current ANSI/ASME standard is applied to the testing of desiccant materials in SERI`s Sorption Test Facility. This paper estimates the elemental precision and systematic errors in these tests and propagates them separately to obtain the resulting uncertainty of the test parameters, including relative humidity ({plus_minus}.03) and sorption capacity ({plus_minus}.002 g/g). Errors generated by instrument calibration, data acquisition, and data reduction are considered. Measurement parameters that would improve the uncertainty of the results are identified. Using the uncertainty in the moisture capacity of a desiccant, the design engineer can estimate the uncertainty in performance of a dehumidifier for desiccant cooling systems with confidence. 6 refs., 2 figs., 8 tabs.
Authors:
;
Publication Date:
OSTI Identifier:
10102023
Report Number(s):
SERI/TP--254-3454; CONF-890436--8
ON: DE89000841
DOE Contract Number:
AC02-83CH10093
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Dec 1988
Research Org:
Solar Energy Research Inst., Golden, CO (United States)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; DESICCANTS; ADSORPTION; MEASURING METHODS; STATISTICS; STANDARDS; HUMIDITY CONTROL; EXPERIMENTAL DATA; CALIBRATION; DATA ANALYSIS; DATA ACQUISITION DESICCANT COOLING; DEHUMIDIFIER; SORPTION ISOTHERM; MEASUREMENT UNCERTAINTY 360603; 990230; MECHANICAL PROPERTIES