A new model for exergetic optimum insulation thickness
by Mustafa Erturk
International Journal of Exergy (IJEX), Vol. 22, No. 4, 2017

Abstract: A new approach is presented to predict the exergetic optimum insulation thickness and the payback period. The calculation method consists of four innovations, namely, heating/cooling degree-hour figures for any given time interval in a day depending on the building working conditions instead of the annual total of degree-hours; the effect of concrete columns on external wall surfaces; the costs of labour and auxiliary equipment utilisation are incorporated into the total insulation cost and finally, the method also determines the optimum insulation thickness depending on whether the purchase of insulation material is financed with cash or bank credit. A concept on "energetic and exergetic saving start and end insulation thickness" is also introduced into the literature.

Online publication date: Wed, 26-Apr-2017

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