• MakaleYalnız künye2024Scopus SJRQ4
    How How Much Much CCondensation ondensation Occurs Occurs With With Various Various Insulation Insulation Thicknesses? Thicknesses?

    Kahraman, Gökhan; Isik, Erdem

  • MakaleYalnız künye2020Scopus SJRQ4
    An artificial neural network-based approach for economic analysis of insulation thickness using heating degree-day values

    Isik, Erdem; Inalli, Mustafa

    In Ihis study, two different structures are considered for the exterior walls of buildings. The first structure is sandwich wall structure that consists of 2 cm interior plaster, 2 picces 13.5 cm horizontally perforated brick with insulation material between and 3 cm exterior plaster. The second one is externally insulated wall consisting of 2 cm inner plaster, 20 cm horizontally perforated brick, insulation and 3 cm outer plaster. The artificial neural network is applied to find temperature, then the optimum insulation thickness is obtained for predetermined function using heating degree-day values. For economic analysis, the calculations arc made on two different wall types. The relationship between insulation thicknesses and annual gain is calculatcd for three types of fuel (coal, natural gas, fuel-oil) in four different provinces (Adana, Gaziantcp, Ankara, Mus) in different degree-day regions. It has been found that the return of investment period has dccrcased with the increase of the HDD number and the insulation thickness has increased with the increase of the HDD number. Among the four provinces, the longest return of investment period is found for Adana province.

  • BildiriAçık Erişim2017
    Some Prototype Results of the Symmetric Regularized Long Wave Equation Arising in Nonlinear Ion Acoustic Waves

    Isik, Erdem; Bulut, Hasan; Atas, Sibel Sehriban; Atangana, A; Bulut, H; Hammouch, Z; Baskonus, HM; Mekkaoui, T; Belgacem, FB

    In this manuscript, we consider the Bernoulli sub-equation function method for obtaining new exponential prototype structures to th Symmetric Regularized Long Wave mathematical model. We obtain new results by using this technique. We plot two-and three-dimensional surfaces of the results by using Wolfram Mathematica 9. At the end of this manuscript, we submit a conclusion in the comprehensive manner.