This paper presents a generalized irreversible Carnot-engine model that incorporates several internal and external irreversibilities, such as heat-resistance, bypass heat-leak, friction and turbulence. The added irreversibilities besides heat-resistance are characterized by a constant parameter...

A performance analysis and optimization of a regenerated air refrigeration cycle with variable-temperature heat-reservoirs is carried out by taking the cooling-load density, i.e., the ratio of cooling load to the maximum specific volume in the cycle, as the optimization objective using...

The constructal economic optimization for a given area is carried out in this paper with minimum transport cost objective by using a triangular elemental area. A number of triangular elements are assembled to form a new larger rectangular area and optimized by relaxing the angle constraint. The...