Modeling and Experimental Parameter Estimation of a Refrigerator/Freezer System

Reeves, R.N.

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https://hdl.handle.net/2142/9698 Copy

Description

Title

Modeling and Experimental Parameter Estimation of a Refrigerator/Freezer System

Author(s)

Reeves, R.N.

Contributor(s)

• Crawford, R.R.
• Bullard, C.W.

Issue Date

1992-01

Keyword(s)

• analysis of refrigerator-freezer systems
• alternate refrigerants
• heat exchangers

Abstract

This paper examines a set of simple equations describing a domestic refrigerator/freezer system and suggests several modeling improvements, based on experimental results. The experimental setup is described and limitations in the accuracy of the sensors is examined. Data are compared to predictions from a fIrst generation model. Changes are made in the model to improve representations of heat exchanger geometry and flow regimes, and air side energy equations. The experimental data are re-examined in order to quantify the accuracy gained as model complexity was increased. For both models, parameters are estimated from the data using nonlinear least squares parameter estimation methods, implemented using multivariate and univariate optimization algorithms.

Publisher

Air Conditioning and Refrigeration Center. College of Engineering. University of Illinois at Urbana-Champaign.

Series/Report Name or Number

Air Conditioning and Refrigeration Center TR-09

Type of Resource

text

Language

en

Permalink

http://hdl.handle.net/2142/9698

Sponsor(s)/Grant Number(s)

Air Conditioning and Refrigeration Center Project 12

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