What is typical COP for air conditioning?

Window AC COP ≈ 2.5-3.5 (EER 8.5-12). Split systems COP ≈ 3-5 (EER 10-17). VRF systems COP ≈ 4-6. Carnot limit at 35°C outdoor / 5°C indoor: COP_Carnot = 278/(308-278) = 9.3.

What is the difference between EER and SEER?

EER (Energy Efficiency Ratio) = BTU/hr per watt at single test condition (95°F outdoor, 80°F indoor). SEER (Seasonal EER) is weighted average over cooling season. SEER = 1.1 × EER approximately.

How does subcooling and superheating affect COP?

Subcooling increases cooling effect (more enthalpy drop in evaporator) without more compressor work, improving COP. Superheating at compressor inlet prevents liquid slugging but reduces COP slightly.

Refrigeration COP Calculator

Calculate Coefficient of Performance for refrigeration: COP_R = Q_L/W_net = T_L/(T_H - T_L) (Carnot). Vapor-compression cycle COP with refrigerant properties. EER and SEER energy ratings for AC systems.

2D stress state at a point. All stresses in MPa.

σx — Normal Stress X (MPa)

σy — Normal Stress Y (MPa)

τxy — Shear Stress (MPa)

⚙ Mechanical Note: Results are based on standard textbook formulas and ISO/AASHTO references. Always verify critical designs with applicable codes (ISO 898, AASHTO 1993, AISC, Eurocode 3) and a qualified engineer.

How to Use

Enter the values for the patient or scenario you are assessing. Calculate Coefficient of Performance for refrigeration: COP_R = Q_L/W_net = T_L/(T_H - T_L) (Carnot). Vapor-compression cycle COP with refrigerant properties. EER and SEER energy ratings for AC systems. Use the refrigeration cop result to inform your clinical assessment.

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Frequently Asked Questions

What is typical COP for air conditioning?

What is the difference between EER and SEER?

How does subcooling and superheating affect COP?