variable compression petrol engine test rig, axial flow fan test rig, axial flow compressor test rig, journal bearing apparatus with pressure gauge, ice plant trainer, thermal conductivity of insulating powder, thermal conductivity of gases, india

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VARIABLE COMPRESSION PETROL ENGINE TEST RIG Performance of I. C. engines at different compression ratios is an interesting characteristic. Keeping this in mind, we developed a variable compression petrol engine, which possess a variable ignition timing also. Thus, it presents a wide range of experiments, to evaluate the performance at various speeds, various compression ratios and various ignition timings. The range of compression ratio is 5.5 to 10 and range of ignition timing is 28 O BTDC to 10 O ATDC. The engine comes with rope brake or electrical dynamometer.		Click Hear to Large View

AXIAL FLOW FAN TEST RIG Axial flow fans are required at many places and hence study of their performance has become essential. The 'DYNAMIC' unit is a ducted axial flow fan having guide vanes on upstream and downstream sides. The unit is having standard aerofoil shaped blades. Both the guide vanes have adjustable angle. The rotoris driven by a variable speed motor and a butterfly valve is also provided to vary the head. Thus the characteristics of fan can be determined at various settings and hence the equipment becomes an important tool for students.

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Click Hear to Large View	AXIAL FLOW COMPRESSOR TEST RIG Axial flow compressors are very important part of jet engines gas turbines and knowledge of them is essential for a thermodynamics student. The 'DYNAMIC' unit is a single stage axial flow compressor with guide vanes on upstream and downstream. The angle of guide vanes is also variable. ompressor blades are of standard aerofoil shape. The compressor is also driven by a variable speed motor hence, characteristics of compressor can be drawn with various variables. Though there is not much difference between axial flow fan and axial flow compressor, axial flow compressors are generally characterized by large hub - tip ratio, higher pressure rise, higher temperature rise and smaller pitch - chord ratio. Hence presence of both axial flow fan and axial flow compressor presents the students a good comparison between the two.