Industrial News
Eleven Inquiries Regarding Air Coolers, Heat Exchangers, and Condensers

Eleven Inquiries Regarding Air Coolers, Heat Exchangers, and Condensers

1. What are the Basic Types of Air Coolers? The fundamental types of air coolers include Horizontal Air Coolers, Vertical Air Coolers, and Inclined Air Coolers. 2. How to Classify Air Coolers According to the Cooling Method? Air coolers can be categorized based on the cooling method into Dry Air Coolers, Wet Air Coolers, Dry and Wet Combined Air Coolers, and Spray Air Coolers on Both Sides. 3. How to Classify Air Coolers According to the Type of Their Tube Bundle Layout? Air coolers can be classified...

Feb 01, 2021 Industrial News
11 Inquiries about Categories of Heat Exchangers and Air Coolers

11 Inquiries about Categories of Heat Exchangers and Air Coolers

1. Definition of Wet Air Cooler A wet air cooler is a type of air cooler where a slight structural modification allows for the spraying of a small amount of water onto the fin surfaces. This addition of water facilitates evaporation, enhancing heat transfer and improving overall heat transfer efficiency. 2. Classification of Heat Exchangers based on Heat Transfer Principle Heat exchangers, according to the principle of heat transfer, can be categorized into three types: mixed, regenerative, and...

Jan 25, 2021 Industrial News
How Many Types of Pressure Tests Exist?

How Many Types of Pressure Tests Exist?

The pressure testing of a heat exchanger involves both hydraulic and pneumatic tests. In principle, the primary method for pressure testing is the hydraulic test, commonly referred to as the hydrostatic test when clean water is the testing medium. If other liquids are utilized, they must be non-hazardous, and their temperature should remain below the boiling point. When conducting a hydraulic test with a flammable liquid, the test temperature must be below the liquid's flash point. Additionally,...

Jan 19, 2021 Industrial News
Four Inquiries Regarding Heat Exchangers

Four Inquiries Regarding Heat Exchangers

1. How to Compare the Indicators of Heat Exchange Equipment? Different types of heat exchange equipment can be compared based on factors such as high efficiency, compact structure, material savings, low pressure drop, reliable structure, low manufacturing cost, easy installation, maintenance, and long service life. 2. How to Describe the Model of a Heat Exchanger? DN represents the nominal diameter of the heat exchanger, indicating the inner diameter of the rolled cylinder and the outer diameter...

Jan 11, 2021 Industrial News
Queries Regarding Heat Transfer in Fluids and Classification of Heat Exchangers

Queries Regarding Heat Transfer in Fluids and Classification of Heat Exchangers

1. If the hot fluid is inside the tube while the cold fluid is outside, how do the two fluid transfer heat through the wall? It includes the following three processes: (1) Heat is transferred to the tube wall by heat fluid convection; (2) Heat from the inner wall surface is transferred to the outer wall by heat conduction; (3) Heat from the outer wall surface is transferred to the cold fluid by convection.   2. What are the requirements for...

Jan 04, 2021 Industrial News
Eight Inquiries Regarding Heat Exchangers

Eight Inquiries Regarding Heat Exchangers

1. What does test pressure signify? The test pressure is the pressure applied during the pressure test at the tube pass and shell pass. 2. Define design temperature. Design temperature is the set temperature of the element metal during normal operation of the heat exchanger. It is determined by the design load conditions and pressure. 3. How does a heat exchanger facilitate heating? In a typical wall heat exchanger, heat transfer primarily occurs through conduction and convection. The heat fluid...

Dec 25, 2020 Industrial News
Inquiries about Tube & Shell Passes, Working & Design Pressure of Heat Exchanger

Inquiries about Tube & Shell Passes, Working & Design Pressure of Heat Exchanger

1. What constitutes the tube pass and shell pass in a heat exchanger? The tube pass is the section of the heat transfer tube channel that facilitates the flow and connection of the medium. The shell pass is the portion of the channel where the medium flows around the exterior of the heat transfer tube, connecting with one another. 2. How is the count of tube passes and shell passes determined in a heat exchanger? The number of tube passes indicates how many times the medium moves back and forth...

Dec 07, 2020 Industrial News
What Constitutes the Nominal Diameter and Length of Heat Exchangers?

What Constitutes the Nominal Diameter and Length of Heat Exchangers?

What does the nominal diameter of heat exchangers signify? For coiled cylinder heat exchangers, the nominal diameter (DN) is determined by the inner diameter of the cylinder. In steel cylinder heat exchangers, the nominal diameter is based on the outer diameter of the steel tube. How is the nominal length of the heat exchanger defined? For straight heat exchange tubes, the length of the straight tube section becomes the nominal length (LN). In the case of U-shaped tubes, the nominal length (LN)...

Dec 02, 2020 Industrial News
What Is a Heat Exchanger and How Is Its Transfer Area Determined?

What Is a Heat Exchanger and How Is Its Transfer Area Determined?

What is a heat exchanger? A heat exchanger is a device designed to transfer heat from a hotter fluid to a cooler fluid. What is the heat transfer area of a heat exchanger? The heat transfer area is calculated as the outer surface area of the tube, considering the outer diameter and deducting the length that extends into the tube sheet. In U-tube heat exchangers, the area of the U-shaped bend is typically excluded.

Dec 02, 2020 Industrial News