Creators
Md Jony Islam Author
Md Jony Islam
CalculatorToolsProjectExpert
Reviewers
Małgorzata Koperska, MD Steven Wooding
Last updated: November 17, 2025

Refrigeration Cycle COP Calculator | Air Conditioning & Cooling Tool

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Refrigeration Cycle COP Calculator

Calculate the COP of refrigeration and air conditioning cycles using evaporator and condenser temperatures. Step-by-step solutions for ideal vapor-compression c...

Refrigeration Cycle COP calculator:

This Refrigeration Cycle COP Calculator can be used to find the coefficient of performance of a hypothetical refrigeration system. Input evaporator and condenser temperatures to calculate COP, cooling effect, work input and heat rejection using step-by-step calculations.

Refrigeration Cycle COP Tool Formula:

\[ COP = \frac{Q_{C}}{W} \]

\[ COP = \frac{T_{C}}{T_{h} - T_{c}} \]

(where Qc = heat removed, W = work input, Tc = cold temperature, Th = hot temperature)

Refrigeration Cycle Cop Calculator is used to calculate the coefficient of performance (COP) of a hypothetical refrigeration and air conditioning cycle using engineers, students, and HVAC technicians. A cooling system in relation to its work input is a measure of its efficiency and is termed the COP

Users are allowed to enter evaporator temperature (T E ), condenser temperature (T C ), and work input (W) may be entered. The calculator uses common vapor-compression or Carnot refrigeration formulas to compute COP, refrigeration effect (Q L ), work input (W ), and heat rejected (Q H ) values:

Solutions step-by-step are used to demonstrate the flow of energy through each component; hence, it is simple to determine the efficiency of refrigerators, air conditioners, and heat pumps. SI units are supported: -C, K, kilojoulew, kilo watt. It is the best tool to use with mechanical engineers, HVAC engineers, students, and researchers to obtain an accurate analysis of energy consumption and performance of refrigeration systems.

⚡ Work & Installation Input to Output:

Input:

  • Evaporator temperature (T_E)
  • Condenser temperature (T_C)
  • Optional: work input (W) or refrigeration effect (Q_L)
  • Units: °C or K, energy in kJ or kW

Processing:

  • Compute COP: COP = T_E / (T_C – T_E) for ideal Carnot cycle
  • If Q_L or W provided, compute remaining quantities: W = Q_L / COP, Q_H = Q_L + W
  • Validate input temperatures and units

Output:

  • Coefficient of performance (COP)
  • Work input (W)
  • Refrigeration effect (Q_L)
  • Heat rejected (Q_H)
  • Step-by-step formulas and calculations

Testing and Final Adjustments

Test common scenarios:

  • T_E = 0°C, T_C = 40°C → COP ≈ 3.25
  • Q_L = 500 kJ → W = 154 kJ, Q_H = 654 kJ
  • Edge cases: T_E → T_C (COP → 0), very low or high temperatures
  • Units validation: °C ↔ K, kJ ↔ kW
  • Step-by-step clarity for students and engineers
  • Mobile/desktop UX: numeric keypad, labels, dropdowns for units
  • Include examples: household refrigerator, air conditioner, industrial chiller
  • SEO metadata: "Refrigeration Cycle COP Calculator," "Cooling System Tool," "Vapor Compression Efficiency Calculator," schema markup

Frequently Asked Questions - Refrigeration Cycle COP Calculator:

What is COP in refrigeration?

Coefficient of Performance (COP) is the ratio of refrigeration effect to work input in a cooling system.

How do I calculate COP of a refrigeration cycle?

COP = Q_L / W, where Q_L is the refrigeration effect and W is the work input. For ideal Carnot cycle, COP = T_E / (T_C - T_E).

What is evaporator temperature?

The evaporator temperature (T_E) is the temperature at which the refrigerant absorbs heat from the space to be cooled.

What is condenser temperature?

The condenser temperature (T_C) is the temperature at which the refrigerant rejects heat to the surroundings.

Can I calculate work input?

Yes, W = Q_L / COP.

Can I calculate heat rejected?

Yes, Q_H = Q_L + W.

Which units are supported?

Temperature in °C or K, energy in kJ or kW.

Who should use this calculator?

Mechanical engineers, HVAC engineers, students, and researchers analyzing refrigeration and air conditioning systems.

Does it show step-by-step calculations?

Yes, all formulas and intermediate steps are displayed for clarity.

Why is COP important?

COP measures the efficiency of a refrigeration system, indicating how much cooling effect is obtained per unit of work input.

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Md Jony Islam

Md Jony Islam

Calculator Tools Project

Founder of Earthbondhon.com

a free online tools website designed to make everyday and engineering-related calculations easier for students, professionals, and hobbyists. The site offers a wide range of basic calculators across key categories, including Electrical Calculators, Electronic Calculators, and Time & Date Calculators.