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Stainless Steel Heat Exchange Tubes:

Stainless steel heat exchange tubes are components made from stainless steel, placed inside a shell for heat exchange between two mediums.

Advantages:

1. They have a thin wall (0.5-0.8mm) that improves overall heat exchange performance, with a total heat transfer coefficient 2.121-8.408% higher than copper tubes.

2. Made from SUS304 high-quality stainless steel, they are highly durable, with excellent impact and vibration resistance.

3. The smooth inner wall reduces boundary layer thickness, improving heat transfer and anti-scaling performance. After high-temperature heat treatment at 1050掳C in a protective atmosphere, they undergo leak tests with air pressure up to 10MPa.

Copper Tubes:

Advantages:

1. Lightweight, good thermal conductivity, and high strength at low temperatures, often used in heat exchange equipment like condensers and low-temperature pipelines in oxygen systems.

2. Resistant to corrosion and durable, making them the preferred choice for water pipes, heating, and cooling installations in residential buildings.

3. Copper combines strength with flexibility, resistance to cracking, and impact resistance, making it safe and reliable for use in building water systems, often requiring no maintenance after installation.

Disadvantages:

1. The main drawback of copper tubes is their high cost, making them the most expensive option for water pipes. Installation relies on welding techniques, and the quality of construction is crucial to ensure long-term leak-free performance.

Performance Comparison:

1. Thermal Conductivity:

  - Copper tubes have a thermal conductivity of 100W/m鈩�, while stainless steel tubes have 13W/m鈩�, affecting the overall heat transfer coefficient.

  - Stainless steel tubes can have thinner walls (0.5~0.8mm) compared to copper tubes (minimum 1.2mm due to strength and wear considerations), narrowing the gap in heat transfer performance.

  - Copper tubes have rougher inner and outer walls compared to stainless steel, making them more prone to scaling.