one option

"Potencia al freno" is always "brake power".
In a fan, BP is Fan Brake Power.

References:

PDF]Proper Belt Tension - Hudson Products
www.hudsonproducts.com/products/tuflite/beltten.pdf
viewing belt mesh at fan sheave, then adjust to correct position using motor adjustment bolts. CORRECT. FAN ... BP = Fan Brake Power, HP (kW). SF = Service ... Assembly Illustrations for Induced Draft, Belt Drive Units 2-28-95. 15 OF 16. FIG.

Testing and performance of IC engines - Wikipedia, the free ...
https://en.wikipedia.org/wiki/Testing_and_performance_of_IC_...
The force or torque is measured by Dynamometer and speed by Tachometer. The power ... So the mechanical efficiency is defined as ratio of brake power to the indicated power. ... Really huge diesel engines have reported BSFC values in the 0.35 range. ... •Effective on high octane low sulphur diesel fuel or ordinary fuel.
Internal Combustion Engines - Page 23 - Google Books Result
https://books.google.com.ar/books?isbn=817008637X
R.K. Rajput - 2005 - ‎Compressors
(c) the engine maintains operating pressures and temperatures within prescribed limits ... For which of the following engines a prony brake is used to measure brake power ? (a) single cylinder engine (6) low speed engine (c) low power engine (d) variable speed engine. ... is the method of governing used in diesel engine.
A Text Book of Automobile Engineering
https://books.google.com.ar/books?isbn=8170089913
R. K. Rajput - 2007 - ‎Automobiles
For which of the following engines a prony brake is used to measure brake power ? (a) single cylinder engine (b) low speed engine (c) low power engine (d) variable ... (d) Partial governing. is the method of governing used in Diesel engine.
[PDF]UNIT 7 IC ENGINE TESTING - IGNOU
www.ignou.ac.in/upload/unit-7.pdf
N = Rotational speed of the engine, rpm (It is N/2 for four stroke engine), and ... Specific output of an engine is defined as the brake power (output) per unit of ..... The Prony brake shown in Figure 7.4 works on the principle of converting power ..... (e) At low engine speed the friction power is relatively low and bhp is nearly as.
[PDF]Unit 8
elearning.vtu.ac.in/10/enotes/06ME43/Unit8-GP.pdf
... relation between the fuel consumption and brake power is linear when speed of the engine is held constant and ... In a Diesel engine, a particular cylinder is made inoperative by cutting .... The working of a prony brake dynamometer is shown in figure 4 ... Relatively higher torque is provided under low speed conditions. 5.
Mech Engineering: IC/Automobile Engine VI Online Practice ...
https://www.wiziq.com/.../1418-mech-engineering-ic-automobil...
Prony brake is used for the measurement of brake power of a. Low speed engine. Low power engine. Variable speed engine ... A diesel engine is generally more efficient than a petrol engine because of. High calorific value of diesel fuel
[PDF]Performance test of IC engine using karanja biodiesel ...
www.arpnjournals.com/jeas/research_papers/rp.../jeas_1007_6...
by N Stalin - ‎2006 - ‎Cited by 24 - ‎Related articles
The engine performance studies were conducted with a prony brake-diesel engine set up. Parameters like ... like speed of engine, fuel consumption and torque were measured at ... brake power is higher for the dual fuel combinations from. B5 to B30 than ... The low brake thermal efficiency for B60, B80 and. B100 may be ...
[PDF]Engine Testing
https://fenix.tecnico.ulisboa.pt/.../Guide_Exp-work_MT_1213....
(2) influence of load at constant speed in a Diesel engine; ... The de Prony Brake is a brake, as show in ... Brake power is obtained multiplying the torque e .... load (and engine speed, if possible) to very low values and let the engine cool down.
[PDF]Reciprocating Internal Combustion Engines - The University ...
www.personal.utulsa.edu/~kenneth-weston/chapter6.pdf
The Diesel engine, the workhorse of the heavy truck industry, is widely used in industrial ..... work per cycle for slow-running steam and gas reciprocating engines. ... prony brake, the force required to resist turning of the brake (pump) housing provides ... ment and speed, yields the brake power, analogous to Equation (6.10).

HTH

Regards :)


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Note added at 24 days (2015-11-22 00:50:43 GMT) Post-grading
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Robert Mavros, many thanks for your feedback.Regards :)