Frequently Asked Questions

What is the core mechanism of Cool Innovation?

Cool Innovation cools water instead of air, converting the cooled water into high-humidity air (up to 99%) for efficient cooling without condensation or frost. Air is suctioned, impurities are trapped in a water tank, and clean air is released, making it ideal for various air conditioning systems.

How does Cool Innovation differ from traditional air-cooled systems?

Unlike air-cooled systems that directly cool air, leading to condensation, frost buildup, reduced efficiency, and dry environments, Cool Innovation cools water, avoids frost, maintains high humidity, traps impurities in a water tank, and creates a progressively cleaner indoor environment.

What refrigerants does Cool Innovation use?

Cool Innovation can utilize common compressor type, but its water-cooling system makes ammonia an ideal refrigerant. Ammonia provides high heat transfer per unit of power and minimal global warming impact. Since Cool Innovation cools water instead of air, the risk of refrigerant leakage is significantly reduced, enhancing safety and environmental benefits for food preservation and facility applications.

How does Cool Innovation create a clean environment?

Cool Innovation’s patented technology converts water into humidified air, achieving adjustable humidity levels up to 99% without producing harmful mist that could damage fresh produce. Air is suctioned, and impurities such as CO2 or mold are trapped in a water tank. The system then releases clean, high-humidity cold air, ensuring items like cardboard remain dry even after a year of storage, making it ideal for food preservation and facility applications.

How does Cool Innovation control humidity?

Propylene glycol, a food-safe additive, is used in Cool Innovation’s water-cooling system to prevent freezing in operations below 0°C. This ensures reliable and stable cooling for low-temperature applications, such as food preservation and processing, without compromising safety or performance.

Core Technology and Mechanisms

How does Cool Innovation achieve energy savings?

Cool Innovation achieves energy savings by cooling water to 15°C with a higher evaporation temperature of 12°C, compared to 5°C in air-cooled systems. This results in a Carnot COP of 8.64, adjusted to 5.6 with compressor efficiency (η = 0.647), requiring only 1/5.6 of the cooling capacity (Q) in power input versus 1/4.5 for conventional systems, yielding a 19.4% energy reduction with the same compressor. Additionally, Cool Innovation employs unique heat exchangers designed to maximize surface area, further enhancing energy efficiency for applications in food preservation and facility cooling.

What is the Carnot COP calculation?

The Carnot Coefficient of Performance (COP) is a theoretical measure of the maximum efficiency a refrigeration system can achieve under ideal conditions, based on the Carnot cycle. For cooling systems, it represents the ratio of cooling provided to the work input required. The formula for Carnot COP in cooling is:

COP = (To + 273.16) / (To - Ti) - 1

Where:

To is the outdoor temperature (in °C), representing the temperature of the heat sink (e.g., condenser).
Ti is the indoor temperature (in °C), representing the temperature of the cooled space (e.g., evaporator).
273.16 converts temperatures to the Kelvin scale.

For example, if the outdoor temperature (To) is 35°C and the indoor temperature (Ti) is 25°C:

COP = (35 + 273.16) / (35 - 25) - 1 = 308.16 / 10 - 1 ≈ 29.816 - 1 = 28.816.

In practice, real-world systems like Cool Innovation achieve lower COPs due to inefficiencies (e.g., compressor efficiency of 64.7%). For instance, Cool Innovation cools water to 15°C with an evaporation temperature of 12°C and condensation at 45°C, yielding a Carnot COP of 8.64, adjusted to 5.6 with efficiency losses. This high COP contributes to significant energy savings in applications like food preservation and facility cooling.

How does ammonia refrigerant enhance energy savings in Cool Innovation?

When combined with ammonia refrigerants and efficient condensers (e.g., 35°C condensation), yielding a Carnot COP of (273.16 + 35) / (35 - 12) - 1 = 12.398. Adjusted for efficiency, it reaches about 8, enabling 43.8% energy savings compared to traditional air-cooled systems with a COP of 4.5.

Why is water cooling more efficient than air cooling in Cool Innovation?

Water cooling allows for higher evaporation temperatures (e.g., 12°C vs. 5°C in air cooling), improving COP from 6.95 (air) to 8.64 (water), leading to less power needed for the same cooling load.

Energy Efficiency and Calculations

Why is Cool Innovation ideal for fresh produce storage?

Cool Innovation maintains low temperatures (-2°C to 15°C) and high humidity (90-95%) through a specialized air diffusion system that gently distributes high-humidity cold air. This slows respiration, prevents moisture evaporation, and extends the freshness of vegetables, fruits, and flowers without causing sogginess, ensuring optimal storage conditions.

What preservation results were achieved for strawberries?

Cool Innovation preserved strawberries at 0°C and 95% humidity using standard retail PET packaging, maintaining their freshness for 45 days. Confirmed sustained quality, with no significant degradation, mirroring the packaging conditions found in retail environments.

What are the results for pear preservation?

Pears were preserved for 157 days at 0°C and 95% humidity in cardboard packaging, with only 0.2% weight loss and maintained internal quality, as observed in images of Pear 1, Pear 2, and the interior.

How effective is Cool Innovation for preserving apples?

Apples remained fresh for more than six months at 0°C and 95% relative humidity in cardboard packaging. Compared to Controlled Atmosphere (CA) cold storage, apples preserved in Cool Innovation's environment retain higher internal moisture levels, delivering superior taste and texture.

Applications for Fresh Produce and Preservation

What is the preservation outcome for Shine Muscat Grapes

Shine Muscat, a premium seedless grape variety originating from Japan, is renowned for its crisp texture, sweet flavor, and fragrant aroma, making it a highly sought-after fruit in both domestic and international markets.

In Cool Innovation's advanced cooling environment, Shine Muscat grapes remained fresh for 90 days at 0°C and 95% relative humidity in cardboard box packaging, as documented from Day 1 to Day 90.

How does Cool Innovation perform for preserving lemons?

Lemons from Japan's Setouchi region, particularly Hiroshima Prefecture, the country's leading lemon producer, are prized for their vibrant flavor and high quality. These lemons remained fresh for 120 days at 0°C and 90% relative humidity in cardboard box packaging using Cool Innovation's advanced cooling technology, maintaining excellent taste and texture throughout the extended storage period.

How long can persimmons be preserved with Cool Innovation?

Kinokawa persimmons, a rare variety from Kinokawa City, Wakayama Prefecture, remain fresh for up to 56 days at 0°C and 90% relative humidity in cardboard boxes using Cool Innovation’s advanced water-cooling technology. This ensures exceptional quality, texture, and freshness throughout the extended storage period, making it ideal for maintaining premium produce standards.

How effective is Cool Innovation for preserving apples?

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