BAMBACE, LUIS A.W.CASTRO, ALFREDO J.A. de2014-11-172014-11-182015-04-022014-11-172014-11-182015-04-02BAMBACE, LUIS A.W.; CASTRO, ALFREDO J.A. de. Evaluation of total effort and risk of membraneless tubular fuel cell concept. In: BRAZILIAN CONGRESS OF THERMAL SCIENCES AND ENGINEERING, 13th, December 5-10, 2010, Uberlandia, MG. <b>Proceedings...</b> Disponível em: http://repositorio.ipen.br/handle/123456789/17988.http://repositorio.ipen.br/handle/123456789/17988Traditionally people estimate project risks and duration by comparing predicted actions with similar ones. This methodology is rather difficult to apply in very innovative projects, as several of their Work Breakdown Structure (WBS) actions are quite new to a particular developer, even if this action is a standard procedure in another field or company. This paper proposes the use of an alternative methodology with fuel cell design example, which is inspired in Suh third axiom, Jelinsky-Moranda Model of software reliability (JMSRM). This model considers human error with JMRSR, relates the number of trials with entropy and search residual risk, feasibility with model uncertainty and acceptable and target risks, and the matching of search field and real solution field with statistical tools.openAccessfuel cellstubesmembranesdesignaxiomatic field theoryfuzzy logicreliabilityfeasibility studiesevaluationTexto completo de evento