Evaluation of Low-Cost Extrusion Cooker in Sri Lanka

摘要

The low-cost extrusion cooker (LEC), a simple system used to convert indigenous grains into low-cost, nutritious foodstuffs, was developed to reduce dependence on food-for-peace programs as a means of solving LDC food supply problems. This paper evaluates the performance of a pilot LEC system in Sri Lanka, determines its suitability for use in other LDC's, and recommends changes and improvements. The investigating team spent 10 days onsite evaluating Sri Lanka's LEC system, which used the Brady Crop Cooker to cook soybeans for farm animal consumption. The evaluation focused on raw materials used, grain cleaning and storage processes, operating and performance of the B.C. and support equipment performance. The team noted improper usage of tools and parts, lack of spare parts, and machines operating with missing or damaged parts. Final recommendations for Sri Lanka LEC are: (1) to investigate and install continuous-duty equipment so that a 98% 120-hr. equipment reliability factor can be reached, (2) to improve LEC maintenance so as to increase production to at least 70% of its maximum production capacity. The authors urge prompt initiation of pilot plant LEC development program to increase world use of the system.