A Resource Efficiency Assessment Method for Small-scale Producer: Case Study of an IPRS Production for Growing Tilapia
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Abstract
The purpose of this study was to apply a resource efficiency assessment tool for small-scale producers by applying the method called Resource Value Mapping (REVAM) to assess energy/resources consumption. The resources to be assessed in this study are divided into 1) machine resources 2) non-machine resources. An efficiency indicator, the Muda Index (MI), is proposed to quantitatively support the identification of criticalities related to the use of resources in non value-added and wasted activities. The case study of raising tilapia with an In-Pond Raceway System (IPRS), which is an innovation to increase fish production and reduce water consumption with water circulation and sediment removal systems. However, one of the challenges of running this system is the 24/7 electrical energy consumption. The results of the study revealed that the process with the highest MI value was the pond preparation process caused by consuming diesel in digging wells activity, which generates up to 52% of the total MI generated. The REVAM tool can also assess the efficiency of non-machine resources because REVAM focuses on resource-waste, although much developed from the Lean concept that focuses on time-waste. Moreover, a specific way to improve the use of energy/resources from the assessment of non-machine resources is proposed for responsible consumption and production.
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