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Heat Exchanger Effectiveness Calculator

Computes heat exchanger thermal effectiveness (ε) using the NTU-effectiveness method for parallel-flow, counter-flow, and cross-flow configurations. Used by engineers to evaluate or size heat exchangers without knowing outlet temperatures.

Number of Transfer Units (NTU)

Capacity Rate Ratio (Cmin/Cmax)

Flow Configuration

Fill in the required fields to see your result.

Chemical Engineering

Gas Compressibility Factor Calculator

Calculate the real-gas compressibility factor Z from reduced temperature and pressure using the Pitzer correlation. Used in gas processing, pipeline hydraulics, and equation-of-state calculations.

Gas Temperature (K)

Gas Pressure (bar)

Critical Temperature (K)

Critical Pressure (bar)

Gas Type

Fill in the required fields to see your result.

Key differences

	Heat Exchanger Effectiveness Calculator	Gas Compressibility Factor Calculator
Category	Chemical Engineering	Chemical Engineering
Inputs required	3	5
Result	Heat Exchanger Effectiveness	Compressibility Factor (Z)
What it does	Computes heat exchanger thermal effectiveness (ε) using the NTU-effectiveness method for parallel-flow, counter-flow, and cross-flow configurations. Used by engineers to evaluate or size heat exchangers without knowing outlet temperatures.	Calculate the real-gas compressibility factor Z from reduced temperature and pressure using the Pitzer correlation. Used in gas processing, pipeline hydraulics, and equation-of-state calculations.