PASCO TD-8564 THERMAL EFFICIENCY APPARATUS - Manual (Page 3)

012-05443A Thermal Efficiency Apparatus
i
Table of Contents
Copyright, Warranty and Equipment Return ................................................... ii
Introduction ..................................................................................................... 1
Quick Start ....................................................................................................... 2
Theory ............................................................................................................. 3
HEAT ENGINE:
Introduction ............................................................................................... 3
Actual Efficiency ....................................................................................... 3
Carnot Efficiency ....................................................................................... 3
Adjusted Efficiency ................................................................................... 3
HEAT PUMP (REFRIGERATOR):
Introduction ............................................................................................... 4
Actual Coefficient of Performance ............................................................ 4
Maximum Coefficient of Performance ...................................................... 4
Adjusted Coefficient of Performance ........................................................ 4
MEASUREMENTS USING THE THERMAL EFFICIENCY APPARATUS:
Direct Measurements ................................................................................. 5
Temperatures ....................................................................................... 5
Power Delivered to the Hot Reservoir (P
H
) ......................................... 6
Power Dissipated by the Load Resistor (P
W
) ....................................... 6
Indirect Measurements .............................................................................. 6
Internal Resistance ............................................................................... 6
Heat Conduction and Radiation ........................................................... 6
Heat Pumped from the Cold Reservoir................................................ 7
EXPERIMENTS:
1 — Heat Engine and Temperature Difference ......................................... 9
2 — Heat Engine Efficiency (Detailed Study) ......................................... 13
3 — Heat Pump Coefficient of Performance............................................ 17
4 — Thermal Conductivity ....................................................................... 20
5 — Load for Optimum Performance....................................................... 21
Teacher’s Guide .............................................................................................. 25
Technical Support ................................................................. Inside Back Cover