Dual-Pipe Radiator Design for Engine Fluid Heating Efficiency
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Solution Overview
Problem
Conventional fluid heating devices for engines have low heating efficiency due to a single radiator pipe design, which limits the heat radiation area and increases the heat radiation distance, resulting in inefficient fluid heating.
Innovation Solution
The design incorporates an outer pipe and an inner pipe within the outer pipe, allowing heat radiation from both the outer and inner pipes to the fluid, increasing the heat transfer area and reducing the distance for more efficient heating, with optional features like radial corrugations and protruding ends to enhance heat transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single radiator pipe is used, then the device structure is simple, but the heating efficiency of the fluid is low
Solution Approach 1:
The radiator pipe is divided into an outer pipe and an inner pipe, creating a dual-pipe structure. This segmentation increases the heat radiation surfaces from a single tube to multiple surfaces (outer surface of outer pipe, inner and outer surfaces of inner pipe), thereby improving heating efficiency while maintaining reasonable structural complexity
Solution Approach 2:
The inner pipe is nested within the outer pipe, forming a concentric dual-pipe structure. This nesting arrangement maximizes the use of internal space, provides multiple heat radiation surfaces without significantly increasing overall device volume, and allows fluid to flow through both pipes for comprehensive heating
2Device complexity
If a single radiator pipe is used, then the device structure is simple, but the area for radiating heat to the fluid is small
Solution Approach 1:
The radiator pipe is segmented into outer and inner pipes, creating multiple heat radiation surfaces. The outer surface of the outer pipe, the inner surface of the outer pipe, and both surfaces of the inner pipe all contribute to heat radiation, significantly increasing the total heat radiation area compared to a single pipe
Solution Approach 2:
The dual-pipe configuration adds a dimensional aspect to heat radiation by creating concentric heat radiation zones. Heat is radiated from multiple radial distances simultaneously, effectively utilizing the volumetric space around the fluid flow path for heat transfer
3Device complexity
If a single radiator pipe is used, then the device structure is simple, but the heat radiation distance from the radiator pipe to the fluid is long
Solution Approach 1:
The inner pipe is positioned concentrically within the outer pipe, placing heat radiation surfaces at multiple distances from the fluid flow path. This nested arrangement ensures that fluid flowing through the annular space is heated from both the outer pipe surface and the inner pipe surface, reducing the maximum heat radiation distance compared to a single pipe configuration
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration significantly increases fluid heating efficiency by providing a larger heat transfer area and simplifying the heat transfer route, leading to improved performance and efficiency in heating fluids.
Implementation Method 1
heat of the heater (2) is radiated to fluid (4) passing through the radiator pipe (3) via the radiator pipe (3)
Implementation Method 2
the heat generated by the heater (2) is transferred to the outer pipe (5) and the inner pipe (6)
Data Source
Figure 1A~1C
Figure 2A~2D
Figure 3A~3C
AI summary
There is provided a fluid heating device for an engine with increased heating efficiency of fluid. The fluid heating device for an engine includes: a holder 1; a heater 2; and a radiator pipe 3, the radiator pipe 3 is inserted into the holder 1, the heater 2 is housed in the holder 1, heat of the heater 2 is radiated to fluid 4 passing through the radiator pipe 3 via the radiator pipe 3. The radiator pipe 3 is formed by an outer pipe 5 and an inner pipe 6 in the outer pipe 5, the heat generated by the heater 2 is transferred to the outer pipe 5 and the inner pipe 6, the fluid 4 passing inside and outside the inner pipe 6 in the outer pipe 5 is heated by heat radiation from the outer pipe 5 and the inner pipe 6.