Radiator Panels for Above-Ground Foodstuff Drying

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Solution Overview

Problem

Current methods for drying almonds, such as off-ground harvesting and traditional drying techniques, face challenges including high energy costs, risk of pathogens, and inefficiencies in scaling up to large almond production volumes, while also failing to effectively reduce dust and ensure proper drying for the almond industry.

Innovation Solution

A drying apparatus and method utilizing a support frame with radiator panels that allow natural warm airflow to dry foodstuff, which can be integrated into containers or trailers, with optional supplementation of heat or forced air convection to enhance drying efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-generated harmful factors

If off-ground harvesting equipment is used to consolidate steps 1, 2, and 4, then dust generation is reduced, but drying time is eliminated which causes problems at hulling stage

Engineering Contradiction:
Improvedust generationVSAvoiddrying time
Core Design Contradiction:
Object-generated harmful factorsVSDuration of action of moving object

Solution Approach 1:

The drying apparatus is integrated into the harvesting equipment, allowing nuts to be dried in advance during the harvesting process itself. The radiators are positioned to receive warm air from the exhaust system, creating a drying environment before the nuts reach the hulling stage, thus eliminating the need for separate drying time while reducing dust generation.

Inventive Principle:
Principle #10Preliminary action

2Productivity

If traditional dryers similar to those used for other fruit drying are used, then drying efficiency is improved, but energy costs become very expensive and cannot scale to three billion pounds of almonds

Engineering Contradiction:
Improvedrying efficiencyVSAvoidenergy cost
Core Design Contradiction:
ProductivityVSUse of energy by moving object

Solution Approach 1:

The system uses the exhaust air from the harvesting equipment itself as the drying medium. The radiators are positioned to capture warm air that would otherwise be wasted, and this self-generated heat source provides sufficient drying capability without requiring external energy input, making the system scalable to large production volumes.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system changes the temperature parameter of the air by using the warm exhaust air from the harvesting equipment. By positioning radiators to receive this pre-heated air, the system achieves effective drying temperatures without requiring additional energy input, thus maintaining high productivity at low energy cost.

Inventive Principle:
Principle #35Parameter changes

3Ease of manufacture

If almonds are moved to a different open sunny area for drying on the ground, then drying can be performed, but very large spaces are required that are unavailable or too expensive, and there is high risk for pathogens, mold, and fungus

Engineering Contradiction:
Improvedrying feasibilityVSAvoidpathogens, mold, fungus
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The drying apparatus acts as an intermediary between the harvesting equipment and the hulling process. By integrating radiators into the harvesting equipment, the system provides a controlled drying environment that protects nuts from pathogens, mold, and fungus while eliminating the need for large open spaces. The exhaust air serves as a clean, controlled drying medium.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Ease of manufacture

If drying is performed in containers or bins, then drying can be achieved, but internal heat is produced and the fruit may rot

Engineering Contradiction:
Improvedrying capabilityVSAvoidfruit quality
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

Instead of confining nuts in three-dimensional containers or bins, the system uses a two-dimensional array of radiators positioned to expose nuts to warm air flow from multiple directions. This dimensional change allows for better air circulation and heat distribution, preventing internal heat buildup and rot while maintaining effective drying capability.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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 solution enables efficient, cost-effective drying of almonds and other foodstuff above ground, reducing the risk of pathogens and dust while scaling to meet the demands of large almond production volumes, and can be adapted for various container types and environments.

Implementation Method 1

drying by natural warm airflow

Methodology Applied
Scientific EffectNatural convection: Free Convection

Implementation Method 2

The radiator panels have openings through which air can flow, such that the foodstuff is dried by natural warm airflow

Methodology Applied
Scientific EffectHeat transfer: Conduction (thermal)

Data Source

PatentUS20240191942A1Method and apparatus for drying foodstuff
Publication Date: 2024.06.13 RGT UNIV OF CALIFORNIA
  • US20240191942A1 patent drawing
  • US20240191942A1 patent drawing
  • US20240191942A1 patent drawing

AI summary

Methods and apparatus for drying foodstuff such as nuts, fruits, and vegetables above ground with natural airflow that is typical during the drying season. The apparatus can be configured for placement with a container or integrated into the interior of a container, such as stationary containers, moveable containers, trailer containers, above-ground containers, and containers with sidewalls through which air can flow.