1. What is Equilibrium Moisture Weight?

Definition: The Equilibrium Weight of Moisture is the amount of moisture in kg present in the solid that is in equilibrium with the solid for the given drying conditions.

Purpose: It helps determine the minimum moisture content that can be achieved under specific drying conditions.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( MEq \) — Equilibrium Weight of Moisture (kg)
• \( Mi \) — Initial Weight of Moisture (kg)
• \( MFree \) — Free Weight of Moisture (kg)

Explanation: The free moisture content is subtracted from the initial moisture content to determine the equilibrium moisture content.

3. Importance of Equilibrium Moisture Calculation

Details: Understanding equilibrium moisture helps in designing drying processes, predicting drying times, and ensuring product quality.

4. Using the Calculator

Tips: Enter the initial moisture weight and free moisture weight in kg. Both values must be > 0 and initial weight must be greater than free weight.

5. Frequently Asked Questions (FAQ)

Q1: What is free moisture content?
A: Free moisture is the amount of moisture higher than the equilibrium moisture content that can be removed by drying.

Q2: How is equilibrium moisture content determined?
A: It's the moisture content at which the solid neither gains nor loses moisture when exposed to air at given conditions.

Q3: What factors affect equilibrium moisture content?
A: Temperature, humidity, and material properties all influence the equilibrium moisture content.

Q4: Why is initial moisture content important?
A: It represents the total removable moisture plus equilibrium moisture, helping determine drying requirements.

Q5: Can equilibrium moisture be zero?
A: Only in completely dry conditions with absolutely dry air, which is practically impossible to achieve.