Centralized Temperature Control for Refrigeration Power Saving
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing centralized monitoring systems for preservation equipment wastefully consume electric power due to fixed set temperatures, despite varying disturbance frequencies from door openings, which are not effectively managed by these systems for power saving.
Innovation Solution
A centralized monitoring system that dynamically adjusts the set temperature based on disturbance frequency by dividing the day into eco-mode and normal-mode operation time zones, allowing for power-saving by increasing the set temperature during periods of lower disturbance, using a binary refrigerating circuit and data management for efficient control and display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the set temperature is fixed to ensure preservation conditions during high disturbance periods, then preservation reliability is maintained, but electric power consumption increases during low disturbance periods
Solution Approach 1:
The set temperature is changed from a fixed value to a dynamically adjustable parameter based on disturbance frequency. The centralized monitoring apparatus divides the day into eco-mode and normal-mode operation time zones, adjusting the set temperature according to actual disturbance conditions to optimize power consumption while maintaining preservation reliability.
Solution Approach 2:
The set temperature parameter is modified based on disturbance frequency characteristics. During eco-mode periods with low disturbance, the set temperature is increased within a range that does not affect preservation, thereby reducing power consumption of the temperature variable device while still meeting preservation requirements.
2Use of energy by moving object
If the set temperature is dynamically adjusted to reduce power consumption during low disturbance periods, then electric power saving is achieved, but preservation conditions may be compromised
Solution Approach 1:
The system uses feedback from disturbance detection to adjust the set temperature. The centralized monitoring apparatus monitors disturbance frequency and uses this information to dynamically adjust the set temperature, ensuring that preservation conditions are maintained while optimizing power consumption based on actual operating conditions.
Solution Approach 2:
The system performs preliminary classification of time zones into eco-mode and normal-mode based on expected disturbance patterns. This preliminary action allows the system to proactively adjust temperatures during low-disturbance periods while maintaining higher temperatures during expected high-disturbance periods, preventing preservation issues before they occur.
3Use of energy by moving object
If the centralized monitoring apparatus controls temperature dynamically, then power consumption is reduced, but system complexity increases
Solution Approach 1:
The centralized monitoring apparatus is enhanced to perform multiple functions: it not only monitors temperatures and detects failures but also dynamically controls set temperatures to optimize power consumption. This multi-functionality allows the system to reduce power consumption without requiring separate dedicated control systems, thereby limiting the increase in overall system complexity.
4Use of energy by moving object
If the set temperature is increased during eco-mode periods, then power consumption is reduced, but temperature stability may be affected
Solution Approach 1:
The system implements periodic adjustment of set temperature based on predetermined time zones (eco-mode and normal-mode periods). This periodic action allows the temperature variable device to operate at optimized temperatures during stable, low-disturbance periods while maintaining higher stability during transition periods, thereby reducing overall power consumption without compromising temperature stability when needed.
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 approach reduces power consumption by optimizing temperature settings according to disturbance frequencies, thereby enhancing energy efficiency without compromising preservation conditions.
Implementation Method 1
a binary refrigerating circuit is used as the temperature variable device
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A centralized-monitoring apparatus (10), which centralized monitors a device including a storage (2), a temperature sensor (25) to detect a temperature therein, and a temperature-variable device to cool or heat inside the storage such that the temperature reaches a set object-preservation temperature, comprises: an input device (16, 17) to be input with first information indicative of a time zone in which the temperature-variable device performing power-saving operation and second information indicative of a set temperature of the time zone; a storage device (14) to store the first-and-second information from the input device; a timing device (12) to measure a current time; and a control device (11) to control the temperature-variable device, based on the first-and-second information and current time, so as to start operation of turning the temperature to the set temperature when the current time reaches a starting time of the time zone, and terminate the operation when the current time reaches an ending time thereof.