In an oil burner system, what does a higher oil temperature result in?

The choice indicating that a higher oil temperature results in decreased viscosity is accurate due to the physical properties of oils and how temperature affects them. As the temperature of the oil rises, the molecules gain energy and move more freely, causing the oil to flow more easily. This reduction in viscosity is critical in oil burner operations because it allows the oil to be pumped more efficiently through the system and atomized better, which can enhance combustion.

Decreased viscosity means that the oil can be sprayed into the combustion chamber without needing excessive pressure, leading to a more uniform fuel-air mixture. This is especially important for effective burning and helps ensure that the oil combustible energy is maximized.

The effects of higher oil temperatures on density, pressure, and combustion efficiency are more complex. For example, while oil density decreases with higher temperatures, the interplay between all these factors during combustion is essential for the optimal functioning of the burner.