Heater and control scheme for multicompartment dryer
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current multi-compartment dryers face limitations in throughput due to electrical constraints, such as home outlets not exceeding 30 amperes, which restrict simultaneous operation of both dryer compartments, necessitating a solution to optimize energy usage and heating distribution.
Innovation Solution
A heater arrangement with a first and second heater, and a relay that diverts power from the first heater to the second heater based on temperature demands and thresholds, utilizing an appliance controller to manage power distribution between the compartments, ensuring efficient heating and increased throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If both dryer compartments operate simultaneously at full power, then productivity is improved, but electrical power consumption exceeds safe limits (30 ampere outlet constraint)
Solution Approach 1:
The system dynamically switches power allocation between the first and second heaters based on real-time temperature demands and operational state. The controller monitors which compartment requires heating and diverts power accordingly, allowing both compartments to be served sequentially rather than simultaneously at full power, thus resolving the contradiction between productivity and power consumption limits
Solution Approach 2:
When one compartment reaches its target temperature, the system discards the need for continued heating in that compartment and recovers the electrical power by diverting it to the other compartment that still requires heating. This power recovery and reallocation enables increased overall throughput without exceeding the 30 ampere outlet constraint
2Loss of energy
If power is diverted from the first heater to the second heater, then energy efficiency is improved, but the first compartment may experience delayed heating
Solution Approach 1:
The controller continuously monitors the temperature and heating demand of both compartments, using this feedback to make intelligent decisions about power allocation. When the first compartment reaches its target temperature, the system receives feedback and automatically diverts power to the second compartment, ensuring that power is redirected only when necessary and minimizing any delay in heating the first compartment
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 allows for optimized energy usage and increased throughput by prioritizing heating to the compartment with the greatest demand, while ensuring total power consumption remains within safe electrical limits, thereby enhancing the efficiency and capacity of the multi-compartment dryer.
Implementation Method 1
The relay, responsive to a demand for heat to the first dryer compartment and the first dryer compartment having a temperature being less than a target temperature, diverts power to the first heater
Data Source
AI summary
A heater arrangement for a multi-compartment appliance comprises a first heater, a second heater, and a relay. The first heater is disposed within a first airflow path for a first dryer compartment. The second heater is disposed within a second airflow path for a second dryer compartment. The relay interconnects, via an electrical harness, the first and second heaters. The relay, responsive to a demand for heat to the first dryer compartment and the first heater having a temperature being less than a target temperature, diverts power to the first heater.