An Improved Numerical Model for Thermostatic Expansion Valves Used in Automotive Air-Conditioning Systems FIAT Auto SpA

Format:

Conference/Event

Author/Creator:

Monforte, Roberto, author.

Conference Name:

SAE 2003 World Congress & Exhibition (2003-03-03 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2003

Summary:

The TxV model presented at the VTMS 5 has been improved with new experimental measurements.The model, inputted with the thermo-physical properties of the refrigerant at the orifice boundaries and the temperature conditions of the environment surrounding the bulb, allows to calculate the valve lift and the expanding fluid mass flow rate through the variable orifice.A good correspondence with the AC loop data measured during a cool-down test on a vehicle has been established and is here presented.The model allows therefore to seize the valve setting influence on the mass flow rate, giving a solid tool to automotive engineers in exploiting usefully the AC loop simulating tools which adopt the presented model to choose the correct components in both development and problem solving for the current market's good at first shot challenges

Notes:

Vendor supplied data

Publisher Number:

2003-01-0739

Access Restriction:

Restricted for use by site license