Updated on August 20, 2024

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Created on August 8, 2017

Evaptainers EV-8

Evaptainers EV-8 is a mobile refrigeration system used for keeping fruits, vegetables and Dairy products fresh in the summer season.

Developed By
  1. Evaptainers
Tested By
  • COPAG
Content Partners
Unknown

Product Description

The EV-8 is a portable, lightweight refrigeration unit designed to keep perishable items such as fruits, vegetables, and dairy products fresh without requiring electricity. The unit uses evaporative cooling technology, which can reduce internal temperatures by 20-30 °F, depending on ambient conditions. This feature makes the EV-8 potentially useful in hot climates or situations where electricity is not available, including natural disasters, where it could also be used to store medical supplies at cooler temperatures.

The EV-8 was developed by a team of designers and, although prototypes have been tested, it is not yet available on the market.

Target SDGs

SDG 2: Zero Hunger

Market Suggested Retail Price

$30.00

Target Users (Target Impact Group)

Household

Distributors / Implementing Organizations

Evaptainer

Competitive Landscape

Direct competitors include Wakati One, Chotukool, Mitticool Clay Refrigerator, and Zeer Pot.

Regions

Africa

Countries

Morocco

Manufacturing/Building Method

This product is mass produced in China. Interview with representative

Intellectural Property Type

Patent

User Provision Model

Direct from manufacturer

Distributions to Date Status

As of 2019, 1000 units have been produced, 250 of which were used in Morocco for initial field testing, and 150 of which were donated to low-income families in Morocco. Interview with representative

Storage capacity (L)

60

Time to cool (hr)

0.5 hours/ 30 minutes Interview with representative

Cooling retention (hr)

As long as it has water it will remain cool, water deposit can last 1-6 days. Interview with representative

Temperature control

No

Minimum internal temperature (°C)

15-20 degrees Celsius less than ambient conditions

Materials of construction

Expanded polypropylene

Protection from insect entry

Yes

Refrigeration cycle catalyst

The internal reservoir is filled with water and is transported through the walls of the device to the surface where it evaporates, cooling the inside of the chamber through the latent heat of vaporization.

Design Specifications

The EV-8 employs PhaseTek technology to enhance evaporative cooling, achieving a cooling effect of 15-20°C below ambient conditions without using electricity. This technology activates when water is added to the internal reservoir, which could be sourced from taps, wells, rivers, or lakes. As water evaporates through the walls of the device, heat is drawn out from the interior, creating a cooling effect.

 

The design includes a collapsible structure with dimensions of 57 x 45 x 39.5 cm when expanded and 57 x 45 x 11.6 cm when collapsed. The empty unit weighs 2 kg and can hold 60 liters of food and 3.8 liters of water. Made from food-safe plastic, the EV-8 features an internal chamber for storing food and a water reservoir positioned between the chamber and the outer wall. The cooling capacity of the EV-8 varies based on ambient air temperature and relative humidity.

Product Schematics

Technical Support

Tech support can be requested via e-mail, available in the US and Morocco. Interview with representative

Replacement Components

Some components are available upon request. Interview with representative

Lifecycle

It has a 1 year full warranty and 3 years limited warranty. So far the first prototypes tested have lasted 2.5 years without problems. Interview with representative

Manufacturer Specified Performance Parameters

The EV-8 can cool its internal storage space by 15-20 degrees Celsius from ambient conditions, potentially extending food shelf life from 2 days to 2 weeks. It is said to reduce the spoilage rate by at least 10%.

Designer specified performance targets include lightweight and fully portable. The designer provides a graph that shows the expected internal temperature in degrees Celsius given ambient air temperature and relative humidity.

Vetted Performance Status

According to manufacturer's field testing the EV-8 is 5% more thermally efficient than a Zeer Pot. The impact on users is said to be a 10% of income savings, due to the time users can work instead of going to the market. Interview with representative

Safety

No safety precautions specified.

Complementary Technical Systems

Biogas or solar cookstove.

Academic Research and References

Lim, C., & Nair, T., 2017, Cooling Future Urban Habitats: Technology Based on Human Body? (RSIS Commentaries, No. 017). RSIS Commentaries. Singapore: Nanyang Technological University.

Nair T and Lim CH., 2017, Science, Technology and Human Security-Fighting Food Wastage: New Ideas From the Past. (RSIS Commentaries, No. 016). RSIS Commentaries. Singapore: Nanyang Technological University.

Basediya, A. L., Samuel, D.V.K., and Beera, V., 2013, Evaporative cooling system for storage of fruits and vegetables – a review, J Food Sci Technol, 50, pp. 429–442.

Riangvilaikul, B. and Kumar, S., 2010, An experimental study of a novel dew point evaporative cooling system, Energy and Buildings, 42(5), pp. 637-644.

Heidarinejad, G., Bozorgmehr, M., Delfani, S. and Esmaeelian, J., 2009, Experimental investigation of two-stage indirect/direct evaporative cooling system in various climatic conditions, Building and Environment, 44(10), pp. 2073-2079.

Compliance with regulations

All materials are food grade standard Interview with representative

Other Information

The Fenik Yuma 60 L was funded by a crowdfunding campaign on Kickstarter. The company has a video explaining their product and how it works. The designer conducted field testing with support from USAID, National Geographic, and The Siemens-Stiftung Foundation. The usage of Evaptainers could be extended in natural disaster situations

The manufacturer claims that the product can pay for itself in less than 3 months.

This product is a winner of 2017 USA ASME ISHOW.

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