Summary of Experimental Data

Sep 2, 2026

This document presents a comparative summary of experimental data from various studies on refrigeration systems, focusing on heating capacity and Coefficient of Performance (COP) at low temperatures. The table details the author, ambient temperature (Tamb), refrigerant used, heating capacity in kilowatts (kW), COP values, the system configuration, and the experimental location. Notable systems include Variable Inverter (VI), Cascade, and Two-stage configurations, with refrigerants such as R410A, R404A/R134a, and R22 being frequently employed. The data spans research from 2003 to 2022, with experiments primarily conducted in laboratory settings. Ambient temperatures tested range significantly, from -5.0°C to -30.0°C, highlighting the performance of these systems under challenging conditions. The COP values vary, with some systems achieving efficiencies as high as 3.8 (Fan et al., 2022) and 3.26 (Lee and Lee, 2016), while others are lower, around 1.3 to 1.7. Heating capacities also differ, ranging from 3.0 kW to 16.5 kW. The research contributes to understanding the operational characteristics and efficiency of different refrigeration and heat pump technologies under sub-zero temperatures.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages37

Reading Time1 h 33 min

AccessFree to download

Summary of Experimental Data

Key Parameters

Author (year)
Tamb (°C)
Refrigerant
Heating capacity (kW)
COP
System
Location

Overview of Studies

FAQs

What range of ambient temperatures are covered in the experimental data?

The experimental data covers a range of ambient temperatures from -5.0°C to -30.0°C, indicating performance under various low-temperature conditions.

What are some of the refrigerants used in these systems?

Common refrigerants listed include R410A, R404A/R134a, R22, and R134a, with some studies not specifying the refrigerant.

What is the typical range of heating capacity and COP reported?

Heating capacities vary from 3.0 kW to 16.5 kW, and COP values range from 1.3 to 3.8, with some systems achieving higher efficiencies than others.

Sep 2, 2026

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