Zero Emission Fridge for Rural Africa (ZEFRA)

Target SDGs

Market Suggested Retail Price

$50.00

Target Users (Target Impact Group)

Household, Community, Small and Medium-sized Enterprises

Distributors / Implementing Organizations

HELVETAS Swiss Intercooperation

Manufacturing/Building Method

Individually built by farmers with support/ instruction from HELVETAS ^{Interview with representative}

Intellectural Property Type

Trade Secret

User Provision Model

The ZEFRA construction relies on existing local knowledge/expertise. Users are responsible for procurement of necessary construction materials. Helvetas Mozambique is available to provide support.

Distributions to Date Status

More than 800 were built and used in 2010 in Mozambique, each of them benefiting an average of 10 families.

Design Specifications

The basic design of the ZEFRA is a weaved bamboo structure covered with clay on both sides. The clay case of the silo seals the seeds in an almost hermetic chamber and improves the effect of the organic, herbal repellents, which is used to inhibit insects such as the granary weevil. It stands on a base that incorporates vermin traps to protect the grain from rats and mice. The ZEFRA is installed under a simple shelter to maintain cool, dry and constant conditions.

Product Schematics

Technical Support

Together with the local NGO AMA (associação do meio ambiente) Helvetas Mozambique provides training courses for post-harvest techniques including the construction of silos Tethere, climate mitigation, post-harvest, seed-bank management, leadership and conflict management. ^{Interview with representative}

Replacement Components

ZEFRA construction materials include bamboo and clay and can be replaced based on local availability.

Lifecycle

Unknown

Manufacturer Specified Performance Parameters

The product is designed to reduce post-harvest losses and establish seed banks that store sufficient seed reserves.

Vetted Performance Status

Unknown

Safety

There are no known safety risks linked to the use of this product

Complementary Technical Systems

Unknown

Academic Research and References

Compliance with regulations

Unknown

Other Information

• This video shows the construction of ZEFRA
• The basic design of the ZEFRA
• This Animated Video showing the schematics of ZEFRA