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The techno-economic justification for the changing of a system for separate heating/cooling and electrical energy production with a CCHP system with a micro-turbine and absorption refrigeration unit


Glavan, Ivica; Prelec, Zmagoslav; Pavković, Branimir
The techno-economic justification for the changing of a system for separate heating/cooling and electrical energy production with a CCHP system with a micro-turbine and absorption refrigeration unit // Tehnicki vjesnik-Technical Gazette, 23 (2016), 1; 99-106 doi:10.17559/TV-20150702122617 (podatak o recenziji nije dostupan, članak, znanstveni)


Naslov
The techno-economic justification for the changing of a system for separate heating/cooling and electrical energy production with a CCHP system with a micro-turbine and absorption refrigeration unit

Autori
Glavan, Ivica ; Prelec, Zmagoslav ; Pavković, Branimir

Izvornik
Tehnicki vjesnik-Technical Gazette (ISSN1330-3651) 23 (2016), 1; 99-106

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
CCHP; Micro-turbine; Absorption refrigeration unit; Compression refrigeration unit; Modelica; SimulationX; Sensitivity analysis

Sažetak
The system of separate production of heat energy from a boiler and cooling energy from a compression refrigeration unit powered with electrical energy from an external network can be replaced with a CCHP system based on the operation of a gas turbine and absorption refrigeration unit. For this purpose, models of the system were derived through the use of the object-oriented programming language Modelica, on the basis of which steady-state simulations were carried out, as well as technical-economic and the sensitivity analysis of the system, in relation to the changes of influential parameters such as coefficient of performance, the boiler efficiency, the ratio of the electric load, costs of electrical energy, fuel prices and investment costs. Developed system model is intended to be used in further research for dynamic simulations with implemented dynamic boundary conditions.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo



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