Sensible and Latent Energy Loading on a Refrigerator During Open Door Conditions

Laleman, M.R.

Permalink

https://hdl.handle.net/2142/9721 Copy

Description

Title

Sensible and Latent Energy Loading on a Refrigerator During Open Door Conditions

Author(s)

Laleman, M.R.

Contributor(s)

• Newell, T.A.
• Clausing, A.M.

Issue Date

1992-05

Keyword(s)

• heat transfer coefficients
• latent energy

Abstract

This thesis examines the modes of energy loss incurred when the door of a refrigerator is opened. An analysis is done on the fresh food compartment of a 20 cu. ft. refrigerator unit, which is instrumented with aluminum calorimeters. Heat transfer coefficients are determined for the fresh food walls through the lumped capacitance analysis. The open door tests are run under a variety of humidity conditions and compartmental temperatures. The coefficients are separated into latent and sensible values through the heat and mass transfer analogy. U sing these coefficients, estimates are made of the total load imposed on the refrigerator for a certain number of door openings. Rayleigh and Nusselt numbers are also calculated and correlated. A shelf is also inserted into the fresh food compartment, and effects on heat transfer coefficients and correlations are discussed.

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-20

Type of Resource

text

Language

en

Permalink

http://hdl.handle.net/2142/9721

Sponsor(s)/Grant Number(s)

Air Conditioning and Refrigeration Center Project 11

Owning Collections