Mechanical Engineering - Heat Transfer, Refrigeration and Air Conditioning - Discussion

The correct answer is: wet bulb temperature.

The curved lines on a psychrometric chart represent the wet bulb temperature (WBT). These lines are curved because the WBT is a function of both the dry bulb temperature (DBT) and the humidity level.

Here's a summary of what each type of line on a psychrometric chart typically represents:

- Vertical lines: Dry bulb temperature (DBT).
- Curved lines: Wet bulb temperature (WBT).
- Diagonal lines: Dew point temperature (DPT).
- Horizontal lines: Relative humidity (RH).

Understanding these lines and their relationships is crucial for analyzing and solving psychrometric problems, which is essential in various fields like HVAC engineering, weather forecasting, and indoor air quality assessment.

Why not dew point temperature lines? please give me the answer.

CURVED LINE -> RELATIVE HUMIDITY.

STRAIGHT LINE -> WET BULB TEMPERATURE.