Geodesic Shell Cooling Tower Structural Strength

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Solution Overview

Problem

Conventional cooling towers face challenges with weight and footprint efficiency, particularly with cubical and semispherical shells that trap heated air and require internal frameworks, leading to reduced cooling efficiency and increased weight.

Innovation Solution

A cooling tower with a geodesic exterior shell constructed using triangular panels oriented at angles relative to the vertical plane, eliminating the need for internal frameworks and enhancing structural strength and thermal efficiency, featuring a dome-shaped cap section and annular wall that supports the cooling apparatus and induces thermal condensation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a cubical shell is used for the cooling tower, then the structural framework is simpler to construct, but the weight increases and cooling efficiency decreases due to trapped heated air in corners

Engineering Contradiction:
Improveease of constructionVSAvoidstructural strength
Core Design Contradiction:
Ease of manufactureVSStrength

Solution Approach 1:

The patent applies geodesic geometry with curved triangular panels arranged in a spherical configuration. This curvature eliminates the flat surfaces and corners of cubical designs that trap heated air, while the geodesic pattern provides inherent structural strength through triangular panel reinforcement. The curved surfaces improve cooling efficiency by preventing stagnant air pockets while maintaining structural integrity without requiring additional internal frameworks.

Inventive Principle:
Principle #14Spheroidality (Curvature)

2Strength

If a semispherical shell is used for the cooling tower, then the structural strength is improved, but the footprint area increases relative to height

Engineering Contradiction:
Improvestructural strengthVSAvoidfootprint area
Core Design Contradiction:
StrengthVSArea of stationary object

Solution Approach 1:

The patent segments the spherical shell into multiple triangular panels arranged in a geodesic pattern. This segmentation allows the structure to achieve the strength of a semispherical design while optimizing the footprint-to-height ratio. The triangular panels are configured to create a more compact vertical structure compared to a full hemisphere, reducing the footprint area while maintaining the structural advantages of curved surfaces.

Inventive Principle:
Principle #1Segmentation

3Strength

If an internal framework is added to support the shell panels, then the structural strength is improved, but the weight of the cooling tower increases

Engineering Contradiction:
Improvestructural strengthVSAvoidtower weight
Core Design Contradiction:
StrengthVSWeight of moving object

Solution Approach 1:

The geodesic spherical design provides inherent structural strength through its curved geometry and triangular panel configuration. The curvature distributes loads efficiently across the shell structure, eliminating the need for heavy internal frameworks. The triangular panels themselves act as structural reinforcement, providing strength through their geometric configuration rather than requiring additional supporting members.

Inventive Principle:
Principle #14Spheroidality (Curvature)

4Ease of manufacture

If conventional shell designs are used, then the construction methods are well-established, but thermal efficiency is reduced due to trapped heated air

Engineering Contradiction:
Improveconstruction familiarityVSAvoidcooling efficiency
Core Design Contradiction:
Ease of manufactureVSLoss of energy

Solution Approach 1:

The geodesic spherical design with curved triangular panels eliminates flat surfaces and corners that trap heated air in conventional designs. The continuous curved surfaces allow for uniform air flow patterns and prevent stagnant zones, improving thermal efficiency. The design maintains construction feasibility through standardized panel fabrication and assembly procedures similar to conventional shell structures.

Inventive Principle:
Principle #14Spheroidality (Curvature)

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 geodesic design results in a cooling tower that is at least 70% stronger and lighter than cubical counterparts, improving thermal efficiency by reducing water loss and enhancing air flow, allowing for better BTU/hr performance with less GPM, and visually appealing.

Implementation Method 1

featuring a dome-shaped cap section and annular wall that supports the cooling apparatus and induces thermal condensation

Methodology Applied
Scientific EffectThermal condensation: Condensation

Implementation Method 2

the water from the condenser is conducted straight up to the tower and is cooled by the air and the water distribution system of the cooling apparatus

Methodology Applied
Scientific EffectHeat transfer: Convection

Data Source

PatentUS9366480B2Cooling tower with geodesic shell
Publication Date: 2016.06.14 ROSENWACH TANK CO
  • US9366480B2 patent drawing
  • US9366480B2 patent drawing
  • US9366480B2 patent drawing

AI summary

A cooling tower with a self-supported shell, and a cooling apparatus residing inside the shell. The shell includes a base section, a cap section and an annular wall residing between the base section and the cap section, the annular wall including a plurality of geometric bodies that are joined to one another and giving the shell a geodesic configuration.