Overview: This document provides a detailed analysis of the thermal conditions for various insulation materials, specifically microporous, calcium silicate, and mineral fiber, when applied to a vertical flat surface. The environmental conditions considered include an ambient temperature of 20ºC, a cold face emissivity of 0.9, and no wind speed.
Specifications: The document outlines the temperature of the hot surface ranging from 200ºC to 1000ºC and the corresponding exterior surface temperatures for different thicknesses of insulation panels (measured in mm). The materials analyzed include Microporous ISO-NUD, Calcium Silicate, and Mineral Fibre.
Data Summary: - For each material, the exterior surface temperature is calculated at various hot surface temperatures and insulation thicknesses.
- Calcium silicate and mineral fiber have a maximum hot face temperature limit of 900ºC.
- At higher temperatures, some materials are marked as 'Too hot', indicating they exceed safe operational limits.
Key Observations: - Microporous ISO-NUD generally shows lower exterior surface temperatures compared to calcium silicate and mineral fiber at the same thickness and hot surface temperature.
- Increasing the thickness of the insulation panel generally results in lower exterior surface temperatures, enhancing insulation effectiveness.
- Calcium silicate and mineral fiber are suitable for applications up to 900ºC, beyond which they may not provide adequate insulation.
Recommendations: - For applications requiring high-temperature insulation, consider using thicker panels of microporous ISO-NUD for better performance.
- Ensure that the operational temperature does not exceed the material's maximum hot face temperature limit to maintain safety and efficiency.
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