Economical evaluation of a cogeneration system for a building complex

Abstract

In this study, the suitability of using cogeneration system for the Aktürk Building Complex (located in _ Istanbul) was investigated using electricity and heat consumption data by considering five different cogeneration system capacities (800, 1200, 1400, 2000 and 2600 kW). The different capacities were compared using data of the payback period of investment, amount of net savings, ratio of meeting demand and part-load efficiency of the cogeneration system. Although payback periods of the investment for different capacities are close to each other, 1200 kW capacity cogeneration system is proved to be suitable for the Aktürk Building Complex because it has the shortest payback period (1 year 5 months).

Assessing the Importance of Biomass-Based Heating Systems for More Sustainable Buildings: A Case Study Based in Spain

“…Although simplified calculation methods are being developed with different approaches [27,28], our aim is to develop a method to quantify the thermal energy requirements, specifically heating and DHW, with an ability to contemplate the complexity involving the calculations and simplicity in its implementation. The primary energy, translated into monetary values and depending on the fuel used, will allow us to estimate the annual cost local governments are facing in the current conditions and how this would change with renewable energies [29]. Thus, two fundamental aspects of energy management are addressed: firstly, how to quantify the current thermal requirements associated with the use of a building, and secondly, how to measure the influence of certain variables and actions in energy consumption.…”

Atatürk Üniversitesi Yerleşkesi İçin Kojenerasyon Sisteminin Ekonomik Analizi

“…Kojenerasyon sisteminin yatırımın geri dönüş süresi, net tasarruf miktarı, talebi karşılama oranı ve kısmi yük verimliliği verileri kullanılarak farklı kapasiteler karşılaştırılmıştır. Farklı kapasiteler için yapılan yatırımın geri ödeme süreleri birbirine yakın olmakla birlikte, 1200 kW kapasiteli kojenerasyon sisteminin, en kısa geri ödeme süresine (1 yıl 5 ay) sahip olması nedeniyle Aktürk Yapı Kompleksi için uygun olduğu kanıtlanmıştır (Adıgüzel, 2015).…”