Performance Evaluation of a Small-Scale Turbojet Engine Running on Palm Oil Biodiesel Blends

Table 2

CM4 sensors and placements.

Location	Sensor type	Measured parameters
Inlet	Type K Thermocouple	Inlet temperature 𝑇1
Compressor	Type K Thermocouple	Entry temperature 𝑇1
	Pitot tube	Entry pressure 𝑃1
	Type K Thermocouple	Exit temperature 𝑇2
	Pitot tube	Exit pressure 𝑃2=𝑃3
Turbine	Type K Thermocouple	Entry temperature 𝑇3
	Type K Thermocouple	Exit temperature 𝑇4
	Pitot tube	Exit pressure 𝑃4
Nozzle	Type K Thermocouple	Exit temperature 𝑇5=𝑇4
	Pitot tube	Exit pressure 𝑃5
Starter gear	Magnetic pickup optical sensor (0–100000 rpm)	Shaft speed
Between front of engine and frame of test rig	Load cell	Thrust 𝐹