Commercial Dishmachine Water and Energy Saving Wash Architecture
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Solution Overview
Problem
Commercial dishmachines consume excessive water and energy, and often require large amounts of chemicals and materials, which can lead to inefficiencies and increased operational costs, especially when dealing with diverse and stubborn food soils.
Innovation Solution
The dishmachine incorporates features such as pumped final rinse systems, automated and smart dump and fill systems, integrated water conditioning, insulated paneling, heat recovery systems, and RFID-based rack identification to optimize water, energy, and material usage, while maintaining effective cleaning performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If strong detergents, high temperatures, and copious amounts of water are used to remove stubborn soils, then cleaning efficacy is improved, but water and energy consumption increase
Solution Approach 1:
The pre-rinse stage removes loose soils and debris before the main wash, preventing them from forming stubborn baked-on residues. This preliminary cleaning action reduces the demand for high-temperature water and strong detergents in subsequent stages, thereby lowering overall energy and water consumption while maintaining cleaning efficacy.
Solution Approach 2:
The washing process is divided into multiple distinct stages: pre-rinse, main wash, rinse, and dry. Each stage uses optimized water temperature, pressure, and chemical concentration appropriate to its specific cleaning task. This segmentation allows the system to avoid using maximum resources throughout the entire cycle, reducing total energy and water consumption while maintaining effective cleaning at each stage.
2Reliability
If high temperatures are used to remove baked-on and thermally degraded soils, then cleaning performance is improved, but energy consumption increases
Solution Approach 1:
The system dynamically adjusts water temperature based on the detected soil type and staining level. For lightly soiled items, lower temperatures are used to conserve energy. For heavily soiled items with baked-on residues, the system temporarily increases temperature only during the main wash stage, rather than maintaining high temperature throughout the entire cycle, thus optimizing energy consumption while maintaining cleaning performance.
Solution Approach 2:
High-temperature water is applied periodically during specific stages (main wash and power rinse) rather than continuously. The system uses heated water when and where it is most needed to break down stubborn soils, then switches to lower-temperature rinse water, creating a periodic thermal action that maintains cleaning effectiveness while reducing overall energy consumption.
3Reliability
If copious amounts of water are used for mechanical action to remove soils, then cleaning efficacy is improved, but water consumption increases
Solution Approach 1:
The system uses pressurized water jets and high-velocity spray patterns to deliver mechanical cleaning action with reduced water volume. By increasing water pressure and optimizing spray distribution, the system achieves effective mechanical removal of soils using less water than traditional low-pressure, high-volume systems, thereby reducing water consumption while maintaining cleaning efficacy.
Solution Approach 2:
The system applies concentrated water flow to specific areas with heavy soil accumulation rather than distributing water uniformly across all surfaces. During the pre-rinse and main wash stages, water is targeted at soiled areas to provide sufficient mechanical action for cleaning, while reducing water application on already clean or lightly soiled surfaces, thus optimizing water consumption.
4Reliability
If large amounts of chemicals are used to clean diverse food soils, then cleaning performance is improved, but material usage increases
Solution Approach 1:
The system applies different chemical concentrations to different stages and zones based on soil type and staining level. Pre-rinse uses minimal or no chemicals, main wash uses optimized detergent concentration tailored to the detected soil composition, and rinse stages use progressively lower concentrations. This localized chemical application maintains cleaning performance while reducing total chemical consumption compared to uniform high-dose application.
Solution Approach 2:
The system adjusts chemical concentration parameters dynamically based on soil analysis. For protein-based soils, alkaline detergents are optimized; for starch soils, enzymatic cleaners are adjusted; for baked-on residues, higher temperatures activate chemical cleaners more effectively at lower concentrations. These parameter changes allow effective cleaning of diverse soils while minimizing total chemical usage.
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
These features significantly reduce water and energy consumption, optimize chemical usage, and extend the life of materials, resulting in cost savings and improved operational efficiency without compromising cleaning efficacy.
Implementation Method 1
heat recovery systems
Implementation Method 2
insulated paneling
Data Source
AI summary
The present disclosure relates to a dishmachine that includes one or more features directed to water, energy or material savings. The disclosed dishmachines are still capable of meeting the soil demands of the articles to be cleaned.