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Mechanical Engineering

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Technological University Dublin

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2015

Rational efficiency

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Full-Text Articles in Engineering

Thermodynamic Analysis Of Closed Steady Or Cyclic Systems, Jim A. Mcgovern Sep 2015

Thermodynamic Analysis Of Closed Steady Or Cyclic Systems, Jim A. Mcgovern

Articles

Closed, steady or cyclic thermodynamic systems, which have temperature variations over their boundaries, can represent an extremely large range of plants, devices or natural objects, such as combined heating, cooling and power plants, computers and data centres, and planets. Energy transfer rates can occur across the boundary, which are characterized as heat or work. We focus on the finite time thermodynamics aspects, on energy-based performance parameters, on rational efficiency and on the environmental reference temperature. To do this, we examine the net work rate of a closed, steady or cyclic system bounded by thermal resistances linked to isothermal reservoirs in …