Final answer:
The engine operating limit for oil pressure at max continuous operation is determined by calculating the bulk strain and the decrease in volume of the oil under pressure, accounting for factors such as the oil's compressibility and viscosity, which are important for maintaining effective lubrication and engine efficiency.
Step-by-step explanation:
To determine the engine operating limit for oil pressure at maximum continuous power, one needs to consider relevant engineering principles. The pressure and temperature conditions are critical for the efficient operation of engines. When it comes to hydraulic systems, an increase in oil pressure can lead to a decrease in volume due to the compressibility of the oil. Given a 250-liter volume of oil subjected to a pressure increase of 2300 psi and the compressibility factor of oil is 2.0 × 10-5/atm, we can calculate the bulk strain, which is the proportional change in volume, and the absolute decrease in oil volume.
The bulk strain (ε) is given by the equation ε = -ΔV/V, where ΔV is the change in volume and V is the original volume. To find ΔV, we can use the compressibility (κ) of the oil, which is related to bulk strain by the equation ε = κ × ΔP, where ΔP is the change in pressure. By calculating the change in pressure in atmospheres and applying the compressibility, we can figure out the bulk strain and the decrease in volume due to oil's compressibility under pressure.