A Resistance Thermometer for Engine Compression Temperatures University of Wisconsin

Format:

Conference/Event

Author/Creator:

Wienke, H. J., author.

Conference Name:

International Summer Meeting (Montreal, Canada)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1963

Summary:

Fine-wire resistance thermometers were used to measure compression gas temperatures in a motoring (nonfiring) cycle CFR engine. Temperature versus crankangle curves were obtained for the compression and expansion strokes by means of tungsten wires ranging in diameter from 0.151.00 mils and at speeds from 6001800 rpm. The results were compared with the infrared pyrometer; the peak temperature and peak crankangle lags were determined as a function of the wire diameter and engine speed. Attempts to evaluate the instantaneous energy balance around the wire resulted in a negative heat transfer coefficient, for which no current satisfactory explanation is available, although other observers have reported similar phenomena.The tungsten resistance thermometer is simple to build, easy to install, and requires no modification of the engine block for use during motoring. Thus, it is suitable for comparing the compression temperatures of different design engines

Notes:

Vendor supplied data

Publisher Number:

630128

Access Restriction:

Restricted for use by site license