Cold Store Insulation Segmentation for Vapor Management
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Solution Overview
Problem
Current cold room designs face issues with water vapor penetration, thermal conductivity, earthquake resistance, fire safety, energy consumption, and frost heaving, leading to inefficiencies and safety hazards.
Innovation Solution
A green energy-saving cold store design featuring a light steel structure, integrated water vapor channels, desiccants, and a closed platform to manage humidity and temperature, combined with a drying system using waste materials for insulation, which includes a drying layer, water vapor channels, and a drying box to maintain low humidity and reduce energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the heat insulation layer is closed in all directions to prevent water vapor penetration, then water vapor penetration is reduced, but water vapor accumulates inside the heat insulation layer and cannot escape
Solution Approach 1:
The heat insulation layer is segmented into multiple independent modules (first heat insulation module, second heat insulation module, etc.) with separate vapor channels for each module. This segmentation allows water vapor to be managed in distributed channels rather than a single closed system, enabling escape routes while maintaining insulation effectiveness.
Solution Approach 2:
Vapor channels act as intermediary pathways within the heat insulation layer. These channels provide a dedicated route for water vapor to travel through the insulation layer and escape to the exterior, preventing accumulation while maintaining the thermal insulation function of the surrounding material.
2Object-affected harmful factors
If the ground heat insulation layer is made thick to prevent frost heaving, then frost heaving is prevented, but energy consumption increases due to reduced thermal insulation efficiency
Solution Approach 1:
The heat insulation layer utilizes porous materials that maintain high porosity even under compression. The porous structure provides air pockets that resist water vapor penetration and frost heaving while preserving thermal insulation efficiency, allowing thinner layers to achieve the same protective effect.
Solution Approach 2:
Different regions of the heat insulation system have different properties optimized for their specific functions. The ground heat insulation layer is designed with specific porosity and thickness to prevent frost heaving, while vertical heat insulation layers are optimized for thermal efficiency. This localized optimization prevents energy waste.
3Loss of energy
If the heat insulation layer porosity is reduced to improve thermal insulation, then thermal conductivity decreases, but water vapor penetration increases
Solution Approach 1:
The heat insulation system is divided into multiple modules with integrated vapor channels. Each module maintains optimal porosity for thermal insulation while the segmented vapor channels provide dedicated pathways for water vapor removal, decoupling the relationship between porosity and vapor penetration.
Solution Approach 2:
Vapor channels serve as intermediary structures that facilitate water vapor transport without requiring changes to the porosity of the heat insulation material itself. The channels provide a separate transport pathway that does not compromise the thermal insulation properties of the porous material.
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 design enhances earthquake resistance, improves thermal insulation, reduces energy costs, and prevents frost heaving while ensuring fire safety and real-time humidity control, achieving efficient and environmentally friendly operation.
Implementation Method 1
a drying layer is arranged below a first floor of the cold room, a ground heat insulation layer is moved downwards into the drying layer and is separated from a first floor slab
Implementation Method 2
water vapor in the atmosphere penetrates into the cold room through a peripheral protective wall, a leveling layer, a vapor barrier layer, a heat insulation layer and an inner wall
Implementation Method 3
a vapor barrier layer wrapped to the top of a column, and a ground heat insulation layer wrapped to the top of the column
Data Source
AI summary
A green energy-saving cold store is provided, including a cold room, a platform, a machine room, and a refrigerating system. A drying layer (1) is arranged below the first floor of the cold room; a ground heat insulation layer (2) is moved downwards into the drying layer (1) and is separated from a first floor slab (3); an inner wall (4), an internal partition wall, and the wear-resistant waterproof floor (33) are directly located on the first floor slab (3) and integrated with a frame structure; a peripheral protective wall adopts a light steel structure wall surface (14), and is connected to the frame structure by means of ball joint tie beams (15) at the intersection points between frame beams and columns. The cold store is energy-saving and environment-friendly, and has good anti-seismic and fireproof performance.