Ceramic Panel Radiant Furnace With Short-Cycle Air Recirculation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electric resistance radiant furnaces have limitations in heat distribution and efficiency, as the heat is directly transferred from small surface areas of electric resistance wires, leading to high temperatures that can burn dust and debris, causing odors and inefficiencies.
Innovation Solution
The implementation of electric resistance radiant furnaces with ceramic bodies and embedded electric resistance wires, featuring at least one layer of metallic mesh, wire screen, or honeycomb assemblies between panel emitters, which spreads heat before transfer to the air, using a blower to circulate air through the heat sink for efficient heat distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If heat is transferred directly from electric resistance wire to air, then heat transfer efficiency is improved, but the wire temperature becomes very high causing dust burning and odors
Solution Approach 1:
The patent introduces a ceramic panel as an intermediary medium between the electric resistance wire and the air. The wire is embedded in the ceramic panel, which has high thermal mass and conductivity. Heat is transferred from the wire to the ceramic panel, and then the panel radiates and conducts heat to the surrounding air, eliminating the need for the wire to be exposed to air and thus preventing dust burning and odor generation.
Solution Approach 2:
The patent changes the thermal parameters of the heating system by using a ceramic panel with high thermal mass and conductivity. This allows the system to operate at lower wire temperatures while maintaining effective heat transfer, as the ceramic panel stores and distributes the heat over a larger area and longer duration, reducing peak temperatures and preventing harmful effects.
2Power
If the electric resistance wire surface area is increased, then heat transfer capability is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent transitions from a one-dimensional wire heating element to a two-dimensional ceramic panel structure. The electric resistance wire is embedded within the ceramic panel, transforming the heating surface from a linear wire to a planar panel surface. This dimensional change significantly increases the effective heating area and heat transfer capability while maintaining a simple, integrated structure that does not add complexity to the device.
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 design reduces the temperature of the ceramic bodies, minimizing odor and vapor production while enhancing heat distribution efficiency, providing effective heating with lower amperage consumption and improved safety.
Implementation Method 1
electric resistance wire to convert electrical energy into heat energy
Implementation Method 2
heat produced by each panel emitter is conducted through the ceramic body of each panel emitter
Implementation Method 3
at least part of the heat produced by each panel emitter is radiated from the ceramic body to the at least one layer of metallic mesh, wire screen, or honeycomb assembly
Implementation Method 4
the blower blows air between the multiple panel emitters and along the at least one layer of metallic mesh, wire screen, or honeycomb assembly and at least part of the heat produced by each panel emitter is transferred to the air between the multiple panel emitters
Data Source
AI summary
An electric resistance radiant furnace is disclosed. Solid ceramic panel emitters having electric resistance wires embedded therein produce heat. A blower receives air from a return duct. Metallic screens are located between the panel emitters. A thermostat is connected to the wires and the blower. Heat is produced by each panel emitter. Part of the heat produced is radiated from the ceramic body to the metallic screens. Air flows in a parallel manner between the panel emitters and along the metallic-screens. The thermostat heat buildup by turning on the panel emitters controlling the blower. A short cycle air pass conduit accepts a portion of heated air from between the multiple panel emitters and to convey the portion of heated air to the return duct, such that the portion of heated air is mixed with return air, and a temperature of the return air provided to the blower is elevated.