scholarly journals Investigating the Performance of a Laboratory Dynamometer for a Three-wheeler Engine Test Rig

2021 ◽  
Vol 6 (3) ◽  
Author(s):  
Oluwaseun K Ajayi ◽  
Oluleke Oluwole ◽  
Adebayo A Fadairo ◽  
Nosa Idusuyi ◽  
Abiola Adeyi ◽  
...  
Keyword(s):  
User Interface ◽  
Engine Test ◽  
Test Rig ◽  
Student Research ◽  
Innovative Method ◽  
Variable Transmission ◽  
Driving Condition ◽  
High Torque ◽  
Energy Dissipated ◽  
Data Acquisition Unit

The dynamometer is to mimics driving condition in an indoor controlled condition measuring engine output parameters like speed, torque, power, combustion conditions and exhaust compositions. However, the complexity and dynamics involved in the making of this instrument makes it unaffordable for student research except it is funded. This work reports an innovative method adopted to measure a three-wheeler engine output parameters. An automobile vehicle dynamo was adopted which requires low speed and outputs high torque. Driving conditions were incorporated as brakes for the dynamo which mimics the driving terrains experienced by the engine. A data acquisition unit capable of converting the electrical signals into readable values on a screen and a user interface on a PC completed the dynamometer development. The dynamometer was then calibrated against known output values of speed and torque. A three-wheeler engine was mounted on a test rig and the dynamometer was used to measure output speed, torque and energy dissipated. A Bajaj engine was mounted and the engine output tested for two types of transmission of manual and continuously variable transmission. The measured output from the engine showed that the developed dynamometer performed effectively and therefore be adopted for use for student research in this area. Keywords— dynamometer, load, speed, terrain, torque. 

In-Plane Vibration Damping of a U-Tube With Wet and Dry Flat-Bar Supports

2014 ◽  
Author(s):  
Paul A. Feenstra ◽  
Victor P. Janzen ◽  
Bruce A. W. Smith
Keyword(s):  
Energy Dissipation ◽  
Plane Motion ◽  
Test Facility ◽  
Vibration Energy ◽  
Test Rig ◽  
Two Phase ◽  
Support Conditions ◽  
Vibration Tests ◽  
Energy Dissipated ◽  
Steam Generator Tubes

Tests are being planned which will use AECL’s MR-3 Freon test facility and a Multi-Span U-Bend (MSUB) test rig to investigate the dynamics of tube vibration in two-phase flow, in particular those mechanisms that can cause excessive damage to steam-generator tubes. In preparation for the tests, free- and forced-vibration tests were conducted to measure the vibration energy dissipation (damping) of a single U-bend tube in air, with dry and wet anti-vibration bars, under a variety of tube-support conditions. This paper presents the relevant damping mechanisms and documents methods used to conduct the tests and to analyze the energy dissipated at the supports. Results indicate that for in-plane motion without tube-to-support contact, viscous damping related to wet AV B supports is much smaller than guidelines based on other types of supports suggest. To begin to examine the effects of the tube coming into contact with its supports, such as friction-related energy dissipation, the results of tests with light tube-to-support preloads are also presented.

Forced Fracture of „Witch Hat“ Fuel Oil Filters of a Gas Turbine Engine Test Rig

2014 ◽  
Vol 51 (3) ◽  
pp. 208-215
Author(s):  
E. Cagliyan ◽  
T. Gädicke ◽  
A. Neidel
Keyword(s):  
Gas Turbine ◽  
Gas Turbine Engine ◽  
Fuel Oil ◽  
Engine Test ◽  
Test Rig ◽  
Turbine Engine

Experimental comparison of sinusoidal motion and non-sinusoidal motion of rise-dwell-fall-dwell in a Stirling engine

2020 ◽  
Vol 14 (3) ◽  
pp. 6971-6981
Author(s):  
H.M. Wong ◽  
S.Y. Goh
Keyword(s):  
Heat Transfer ◽  
Data Acquisition System ◽  
Stirling Engine ◽  
Experimental Comparison ◽  
Engine Test ◽  
Performance Difference ◽  
Test Rig ◽  
Sinusoidal Motion ◽  
Cam Profile ◽  
Near Future

The Stirling engine is deemed to play a role in the near future of power generation. However, there is a large performance difference between the real and ideal Stirling engine. The use of sinusoidal motion for both displacer and piston in current applications is one of the reasons for this difference as it limits heat transfer. This paper investigated the use of non-sinusoidal rise-dwell-fall-dwell (RDFD) motion on both displacer and piston to improve the performance of a real Stirling engine and compared it to the conventional sinusoidal motion crankshaft driven Stirling engine. A gamma configuration Stirling engine test rig with a data acquisition system was constructed for this investigation. Among the four flywheels with each specifically designed cam profile tested, one was with sinusoidal motion while the remaining three were non-sinusoidal for comparison. The use of non-sinusoidal RDFD cam with 135° displacer dwell improved more than 36% thermal efficiency over sinusoidal motion crankshaft Stirling engine.

Research about Detection System of Hydrogen Engine

2011 ◽  
Vol 52-54 ◽  
pp. 1609-1613
Author(s):  
Li Jun Wang ◽  
Xu Hu Wang ◽  
Hui Juan Guo
Keyword(s):  
User Interface ◽  
System Design ◽  
Signal Analysis ◽  
Detection System ◽  
Design Method ◽  
Test System ◽  
Engine Test ◽  
Hydrogen Fuel ◽  
Comparison Analysis ◽  
Working Status

This paper describes a detection system design method of hydrogen engine based on LabVIEW. In order to understand the characteristics and working status of hydrogen fuel engine, we have developed a set of hydrogen fuel engine test system. In the system, LabVIEW is used as the software and DAQ PCI-1802H is the hardware, which mainly realizes the collection, testing, comparison analysis of engine signals and its feature parameters. It has strong functions of signal analysis and processing as well as nice user interface.

scholarly journals An Experimental Study on Dynamics of a Novel Dual-Belt Continuous Variable Transmission Based on a Newly Developed Test Rig

2015 ◽  
Vol 2015 ◽  
pp. 1-23 ◽  
Author(s):  
Pak Kin Wong ◽  
Zhengchao Xie ◽  
Yueqiao Chen
Keyword(s):  
Experimental Study ◽  
Analytical Model ◽  
Continuous Variable ◽  
Transmission Efficiency ◽  
Speed Ratio ◽  
Test Rig ◽  
Light Load ◽  
Continuous Variable Transmission ◽  
Continuously Variable Transmissions ◽  
Variable Transmission

A novel dual-belt Van Doorne’s continuous variable transmission (DBVCVT) system, which is applicable to heavy-duty vehicles, has been previously proposed by the authors in order to improve the low torque capacity of traditional single-belt CVT. This DBVCVT is a novel design among continuously variable transmissions and is necessary to be prototyped for experimental study, and the analytical dynamic model for this DBVCVT also needs to be experimentally validated. So, this work originally fabricated a prototype of DBVCVT and integrates this prototype to a light-load hardware-in-the-loop test rig by replacing the engine and load equipment with the AC motor and magnetic powder dynamometer. Moreover, with the use of this newly developed test rig, this work implements the experimental study of this DBVCVT for the first time. The comparison of experimental and simulation results validates the previously proposed analytical model for DBVCVT, and some basic characteristics of the DBVCVT in terms of the reliability, speed ratio, and transmission efficiency are also experimentally studied. In all, this developed test rig with the analytical model lays the foundation for further study on this novel DBVCVT.

Behaviour of Antifreeze Solutions in a Simulated Aluminium Alloy Engine Test Rig

1967 ◽  
Vol 2 (6) ◽  
pp. 209-215
Author(s):  
T. J. Glover ◽  
H. H. Collins ◽  
G. S. Parkinson
Keyword(s):  
Aluminium Alloy ◽  
Engine Test ◽  
Test Rig

scholarly journals Dynamic Modeling and Full-Process Simulation of the Core Engine Test Rig Main Test System

2021 ◽  
Vol 11 (23) ◽  
pp. 11213
Author(s):  
Ze-Zheng Jia ◽  
Yang Chen ◽  
Ye-Jun Wang ◽  
Zhen-Qi Sun ◽  
Yu-Long Huang
Keyword(s):  
Low Temperature ◽  
Process Simulation ◽  
Test System ◽  
Modeling Method ◽  
Operating Conditions ◽  
System Level ◽  
Engine Test ◽  
Test Rig ◽  
The Core ◽  
Digital Twins

As a virtual digital model that can reflect physical entities or systems, digital twins are revolutionizing industry. The first prerequisite for the construction of digital twins is the establishment of high-precision and complex entities or system models. A 47-components numerical system is established for the core engine test rig main test system by using the finite volume modularization modeling method. A comprehensive solution to the system-level valve-spool/orifice throttling modeling, the key issue of the fluid pipeline system modeling, is presented, and the algorithms of throttling and mixing are deepened and expanded. The full-process simulation study on two tests of normal-temperature 1400 s and low-temperature 1240 s shows that the combined regulation of five regulator valves and the change of cold source directly decide dynamic change of the system in each stage; the simulation reveals the phenomena such as the gas cylinder cooling with deflation, the air cooling when expanding from main pipeline to two branch pipelines, shunting flow by branch pipeline, and the cold and hot gases mixing; the overall variation trends of the simulation curves are consistent with those of all the experimental curves of the test rig normal-temperature/low-temperature air supply lines, exhaust bypass, and engine main line in two operating conditions, and the maximum error between simulation curves and test curves of pressure, total pressure, and total temperature is less than 12%. The numerical system can be used for the construction of virtual models of digital twins, and the modeling method provides a feasible solution to the key technology of digital twins.

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