thermal efficiency


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thermal efficiency

[′thər·məl i′fish·ən·sē]
(chemical engineering)
In a tube-and-shell heat-exchange system, the ratio of the actual temperature range of the tube-side fluid (inlet versus outlet temperature) to the maximum possible temperature range.
(thermodynamics)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

thermal efficiency

The ratio of the energy produced in the engine to the heat energy released by the fuel in a unit of time.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
References in periodicals archive ?
Certain IPPs having thermal efficiency below the NEPRA benchmark were bearing the additional cost of fuel as it was not a pass through in the tariff, he said.
There is a CPP cost of 4.5 cents for new power plants but they would have higher thermal efficiency of 50-60%.
It can be noticed from Figure 6 that the thermal efficiency is reducing as the condenser outlet temperature increases for different cycle pressure ratio, but, with the 1.5 pressure ratio, the thermal efficiency increases rapidly first and then increases gently and even decreases at each condenser outlet temperature.
This leads to large amount of heat from the burning charcoal to concentrate at the bottom of the cooking pan, thus increasing thermal efficiency.
(iii) Adding [Al.sub.2][O.sub.3] nanoparticles to pure water could enhance the thermal efficiency of heat pipe.
The differences of the thermal efficiency were analyzed from the perspective of fuel energy utilization.
7 presents the indicated thermal efficiency, exhaust temperature, PPRR and peak in-cylinder pressure as a function of various LIVC timings with constant [lambda] (around 1.0) and CA50 timing.
After the variance analysis of the performance results (torque, power, fuel specific consumption and thermal efficiency) for the four configurations of the air and fuel supply system assessed (Factor A) and for the different engine speeds (Factor B), the interaction of the variables mentioned above presented a significant difference.
5 shows the comparison of effect of brake power on brake thermal efficiency between diesel and blends of corn biodiesel at inlet air temperature of 35[degrees]C.
While the abovementioned studies concentrate on improving the thermal efficiency of GUC, the aspect of maximum heat loss occurring from the glazing cover is overlooked.
The thermal efficiency of the heat pipe is defined as the ratio of the heat rejection rate in the condenser to the heat supplied in the evaporator section [12].
The team also will demonstrate a powertrain capable of 55 percent brake thermal efficiency.

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