Baffles for thermal transfer devices
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Solution Overview
Problem
Existing thermal transfer devices face challenges in efficiently distributing heat and maintaining fluid separation from combusted fuel/air mixtures, leading to uneven temperature distribution and potential mechanical instability.
Innovation Solution
The use of baffles with specifically designed apertures and protrusions in thermal transfer devices to regulate fluid flow and support HX tubes, ensuring uniform heat distribution and compliance with regulatory standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If traditional tube sheets are used to hold tubes in thermal transfer devices, then tube support is provided, but uneven temperature distribution and poor fluid separation occur
Solution Approach 1:
The tube sheet is segmented into multiple apertures with protrusions that create distinct flow channels. Each aperture with its protrusion structure divides the fluid flow path, ensuring proper separation between combusted fuel/air mixtures and water/steam while promoting uniform temperature distribution across the tube sheet surface.
Solution Approach 2:
Protrusions are strategically positioned within specific apertures to create localized flow control features. These local structural modifications direct fluid flow in specific patterns, ensuring that each region of the tube sheet receives appropriate fluid distribution for optimal heat transfer and maintaining uniform temperature across different zones.
2Productivity
If baffles are added to regulate fluid flow and support tubes, then thermal efficiency and mechanical stability improve, but device complexity increases
Solution Approach 1:
The baffle structure is designed to perform multiple functions simultaneously: it supports tubes through aperture-protrusion combinations, regulates fluid flow patterns, distributes heat uniformly, and maintains mechanical stability. This multi-functionality reduces the need for separate components, thereby improving thermal efficiency without proportionally increasing device complexity.
Solution Approach 2:
The baffle and tube support functions are merged into a single integrated structure. The apertures with protrusions serve both as flow regulation features and as tube support mechanisms, eliminating the need for separate support components and reducing overall structural complexity while maintaining thermal performance.
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
The solution enhances thermal efficiency, mechanical stability, and durability by promoting uniform fluid flow and reducing temperature stress on device components, while maintaining compliance with industry standards.
Implementation Method 1
The first base shape of each of the third apertures can be substantially the same as that of the first apertures, and wherein the first base shape of each of the third apertures has a size that is substantially the same as that of the first apertures
Implementation Method 2
Heat exchangers, boilers, combustion chambers, water heaters, and other similar thermal transfer devices control or alter thermal properties of one or more fluids
Implementation Method 3
each of the first apertures has a first outer perimeter that includes a first base shape and at least one first protrusion extending from the first base shape
Data Source
AI summary
A baffle for a thermal transfer device can include a body having a multiple first apertures that traverse therethrough, where each first aperture has a first outer perimeter that includes a first base shape and at least one first protrusion extending from the first base shape. Each of the first apertures is configured to receive a tube. The first base shape of each first aperture has a first shape and a first size that is configured to be substantially the same as the first shape and the first size of an end of a tube.