Advisor(s)
Abstract(s)
O presente estudo avalia as condições de frio a que os trabalhadores estão sujeitos no sector agroindustrial avaliando dois casos, uma empresa de distribuição alimentar e uma empresa de lacticínios. De forma a avaliar as condições de conforto térmico dos trabalhadores foram seguidos os procedimentos indicados em normas internacionais. Foram realizados inquéritos e efectuadas medições experimentais de forma a caraterizar as zonas e as condições em que os trabalhadores operam, bem como para avaliar os níveis de atividade de cada trabalhador. O trabalho desenvolvido permitiu identificar o tipo de exposição a que cada trabalhador está sujeito assim como determinar os índices característicos de conforto térmico, nomeadamente o índice IREQ. Os resultados mostram que ocorrem situações em que os trabalhadores possuem isolamento térmico adequado às condições onde estão inseridos mas que ainda assim manifestam sensações relacionadas com o desconforto térmico. Por outro lado, verificou-se também que alguns dos trabalhadores que possuem níveis de isolamento térmico supostamente insuficientes manifestam sensações térmicas neutras. Conclui-se assim que os trabalhadores apresentam uma tendência para uma aclimatação efectiva a ambientes frios que não aparece referida nas normas correspondentes.
This study evaluates the cold conditions to which workers are subject in the agroindustrial sector evaluating both cases, a food distribution company and a dairy company. In order to evaluate the thermal comfort conditions of the workers the procedures referred on international standards were followed. It was conducted surveys and carried out experimental measurements in order to characterize the zones and the conditions under which workers operate, and to evaluate the activity levels of each worker. The work allowed to identify the type of exposure to which each worker is subject and to determine the thermal comfort characteristic indexes, including the IREQ index. The results show that in some situations workers have adequate thermal insulation conditions but still manifest sensations related to the thermal discomfort. On the other hand, it has been found that some workers although with insufficient clothing insulation level exhibit neutral thermal sensations. It is therefore concluded that workers have a tendency to an effective acclimation to cold environments that do not appear in the corresponding standards.
This study evaluates the cold conditions to which workers are subject in the agroindustrial sector evaluating both cases, a food distribution company and a dairy company. In order to evaluate the thermal comfort conditions of the workers the procedures referred on international standards were followed. It was conducted surveys and carried out experimental measurements in order to characterize the zones and the conditions under which workers operate, and to evaluate the activity levels of each worker. The work allowed to identify the type of exposure to which each worker is subject and to determine the thermal comfort characteristic indexes, including the IREQ index. The results show that in some situations workers have adequate thermal insulation conditions but still manifest sensations related to the thermal discomfort. On the other hand, it has been found that some workers although with insufficient clothing insulation level exhibit neutral thermal sensations. It is therefore concluded that workers have a tendency to an effective acclimation to cold environments that do not appear in the corresponding standards.
Description
Keywords
Conforto térmico Stress térmico por frio Ambientes refrigerados Isolamento térmico
Citation
Publisher
International Conference on Engineering – Engineering for Society (ICEUBI2015)