Steam Cooking Food Processor Adaptive Heating Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing food processors with steam cooking capabilities face challenges in achieving high-quality steam cooking while being energy-efficient and minimizing food oxidation, particularly due to suboptimal steam production and energy consumption.
Innovation Solution
A food processor design that includes a container with a heating element and temperature sensor, a steamer attachment for absorbing steam, and a control unit that dynamically adjusts heating power based on temperature thresholds and liquid quantity to rapidly generate and manage steam, ensuring efficient steam filling and reduced oxidation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the heating element operates at high power throughout the steaming process, then steam is generated quickly and the steamer attachment is filled rapidly, but energy consumption increases significantly
Solution Approach 1:
The heating element operates in periodic cycles with alternating high and low power states. During the filling phase, high power is applied to rapidly generate steam and fill the steamer attachment. After filling is complete, the system switches to low power maintenance mode, creating a periodic operation pattern that reduces overall energy consumption while maintaining steam generation capability when needed.
Solution Approach 2:
The heating power is dynamically adjusted based on the steam generation phase. The control unit transitions the heating element from a static high-power state to a dynamic state where power levels change according to real-time conditions - high power during filling, low power during maintenance. This dynamic adjustment optimizes both productivity and energy efficiency.
2Use of energy by moving object
If the heating element operates at low power, then energy consumption is reduced, but the steamer attachment fills slowly and food oxidation increases due to prolonged air presence
Solution Approach 1:
The system employs periodic high-power heating bursts to ensure rapid steam generation and complete displacement of air from the steamer attachment. These periodic high-power phases are timed to occur before and during the critical filling period, effectively preventing food oxidation by ensuring steam fills the attachment quickly, followed by low-power maintenance that preserves energy.
Solution Approach 2:
The control unit applies high heating power in advance during the filling phase to ensure the steamer attachment is completely filled with steam before the steaming process begins. This preliminary high-power action prevents air from remaining in the attachment, thereby preventing subsequent food oxidation, after which the system switches to energy-efficient low-power mode.
3Productivity
If the heating element uses maximum power continuously, then the steamer attachment is filled with steam quickly, but excessive steam is generated leading to energy waste
Solution Approach 1:
The heating element operates with periodic high-power bursts during the filling phase to quickly generate sufficient steam, then transitions to low-power or off states after filling is complete. This periodic operation ensures the steamer attachment is filled rapidly without continuous excessive steam generation, thereby reducing energy waste while maintaining high filling speed.
Solution Approach 2:
The control unit monitors steam generation and adjusts heating power accordingly. When the steamer attachment is sufficiently filled with steam, the feedback signal triggers a reduction in heating power from maximum to maintenance level, preventing excessive steam generation and associated energy waste while maintaining the necessary steam supply for the steaming process.
4Quantity of substance
If the temperature threshold is set high (close to boiling point), then significant steam volume is generated quickly, but the heating phase before reaching threshold consumes more time and energy
Solution Approach 1:
The system uses periodic high-power heating phases to rapidly reach the temperature threshold and generate significant steam volume, then transitions to lower power modes. This periodic approach minimizes the time and energy spent in the pre-threshold heating phase by concentrating heating power into intensive bursts that quickly achieve the necessary temperature, thereby reducing overall heating time while maintaining high steam generation capability.
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 solution enables high-quality steam cooking in an energy-efficient manner by quickly filling the steamer attachment with steam, reducing oxidation, and optimizing energy use through adaptive heating power control, ensuring efficient steam production and minimal energy consumption.
Implementation Method 1
a heating element (e.g. with one or more heating resistors) configured to heat the liquid in the container to generate liquid vapor
Implementation Method 2
a heating element (e.g. with one or more heating resistors) configured to heat the liquid
Implementation Method 3
The temperature sensor can, for example, comprise a temperature-dependent electrical resistor and/or an infrared sensor
Implementation Method 4
The temperature sensor can, for example, comprise a temperature-dependent electrical resistor and/or an infrared sensor
Implementation Method 5
a steamer attachment for a food item, wherein the steamer attachment is designed to be placed on the container and to absorb steam from the container
Data Source
Figure 1a~1b
Figure 2~3
AI summary
A food processor (100) for steam cooking food (120) is described. The food processor (100) comprises a container (104) for holding a liquid (121), a heating element (105) configured to heat the liquid (121) in the container (104) to generate liquid steam (122), and a temperature sensor (110, 111) configured to detect temperature data relating to the temperature of the liquid (121). The food processor (100) also includes a steaming attachment (109) for food (120), which is designed to be placed on the container (104) and to receive steam (122) from the container (104). The kitchen machine (100) further includes a control unit (101) which is set up to determine, at the beginning of a steam cooking process, on the basis of the temperature data, that the temperature of the liquid (121) has reached or exceeded a temperature threshold (201).The control unit (101) is further configured to operate the heating element (105) with a first heating power (211) for a filling time period (225), and after the filling time period (225) has elapsed, to operate the heating element (105) with a reduced second heating power (212).