November 2023

30NovNovember 30, 2023

The process of expanding copper tubes

Tube Expansion Tooling Precision: - Radiran Company employs precision tube expansion tools, meticulously selected to match the specific dimensions of tubes. This ensures uniform and accurate expansion during the manufacturing process. Fine-Tuning Expansion Parameters: - With a commitment to process excellence, Radiran Company excels in fine-tuning expansion parameters. This includes precise adjustment of pressures and depths to achieve optimal tube expansion for enhanced heat transfer efficiency. Mandrel Utilization for Uniform Expansion: - Radiran Company utilizes mandrels with precision to provide internal support during tube expansion....

By پیمان داوریArticles, Technichal Points, TrainingCopper Tubes, Expansion, Mandrel, Mechanical Expansion, Tube expandingComments Off

29NovNovember 29, 2023

Fin Tube Coils Manufacturing Process

1. Material Selection: - Choose the base material for tubes and fins based on factors such as thermal conductivity, corrosion resistance, and compatibility with the working fluid and environmental conditions. There are distinct choices for each part such as Copper or Stainless Steel for tubes, and for fins we can choose between Copper and Aluminum. 2. Tube and Fin Design: - Optimize the design of tubes and fins to meet the specific heat transfer requirements of the application. Consider parameters like tube diameter,...

By پیمان داوریArticles, Technichal Points, Trainingcoil, Fin Tube, Fin TubeComments Off

28NovNovember 28, 2023

Water Coils

Water coils play a critical role in HVAC systems, including Air Handling Units (AHUs), Fan Coils, and Ducted Splits, contributing to efficient heating and cooling. Radiran, being a prominent manufacturer in Iran, is known for providing high-quality water coils. Here's how these coils are used: Air Handling Units (AHUs): - Heating Coils: In AHUs, heating water coils warm the air as it passes over them. Hot water which is provided by the boiler, passes through tubes in the coil and heat...

By پیمان داوریArticles, Technichal Points, TrainingAir Handling Units, coil, Cooling Coils, Ducted Splits, Fan Coils, Heating coils, Water CoilsComments Off

27NovNovember 27, 2023

Gold fin and Blue fin

Gold fin and blue fin are types of coatings applied to the fins of heat exchanger coils, commonly used in air conditioning and HVAC systems. 1- Gold Fin: Gold fin, also known as golden hydrophilic fin, typically refers to a type of corrosion-resistant coating applied to the aluminum fins of heat exchanger coils. The "gold" color comes from the protective coating, which is often a hydrophilic layer. This coating helps prevent corrosion, enhances heat transfer efficiency, and discourages the accumulation of dirt...

By administratorArticles, Technichal Points, TrainingBlue Fin, Fin Tube, Gold FinComments Off

22NovNovember 22, 2023

The role of coils in the refrigeration cycle

Coils are known as the most important component in air conditioning and refrigeration systems. One of the most important heating and cooling cycles is the refrigeration cycle. Condenser coils, usually located in the outdoor unit of the system, help to dissipate the heat that has been absorbed from the indoor space. These coils operate at high pressure and temperatures and help to convert the refrigerant from gas to liquid. On the other hand, the evaporator coils, which are located inside...

By نویسندهArticles, Technichal Points, Trainingcoil, refrigeration cycleComments Off

18NovNovember 18, 2023

Flooding

Flooding (also known as ‘flood back’) is the term used to describe the condition when liquid refrigerant reaches the compressor. This occurs when the amount of liquid fed to the evaporator is more than can be evaporated. There are a number of possible causes of flooding including: • TXV oversized for the application • TXV misadjusted (superheat too low) • System overcharged with refrigerant • Insufficient airflow through evaporator • Dirty evaporator • Evaporator fans not operating • TXV bulb not...

By administratorArticles, Technichal Points, TrainingFloodback, FloodingComments Off

07NovNovember 7, 2023

Evaporator Vs. System Superheat

Q: What is the difference between evaporator superheat and system superheat? Superheat varies within the system depending on where it is being measured. The superheat that the thermal expansion valve is controlling is the evaporator superheat. This is measured at the outlet of the evaporator. The refrigerant gains superheat as it travels through the evaporator, basically starting at 0 as it enters the evaporator and reaching a maximum at the outlet as the refrigerant travels though the evaporator absorbing heat. System superheat...

By administratorArticles, Technichal Points, TrainingEvaporator, Superheat, SystemComments Off

Monthly Archives - November 2023