According to contract, the supplier was obliged to carry out the performance tests. The purpose of which was to verify the guarantees related to the supplied equipment and given by the supplier. Among others, the supplier guaranteed also maximum net power output [MW] and net heat rate [GJ/MWh] at maximum net power output. Laboratory for Heat and Power (LTE) was appointed by Power Plant Šoštanj to be an independent third party. LTE contributed in preparation of the procedure the execution of the performance tests, supervised the installation of calibrated measuring equipment, was involved in measurements of composition and temperature of flue gas exiting the boiler, supervised the execution of the tests and issued an independent report on the execution and the results of the tests.
D.06 Final report on a foreign/international project
COBISS.SI-ID: 14329627State of the art 4-cylinder natural gas engines, developed for use in CHP units currently exhibit effective efficiency up to 33%. By taking into account legislative emission limits, efficiency can be further improved by implementing advanced control strategies. Adjustments of energy balance can be used to favorize mechanical work (or electric energy) production by lowering the production of heat. In this way adjusted balance has beneficial influences on operating costs of CHP unit, since electric energy has notably higher selling price than heat energy. Optimization of effective efficiency was done by carefully analyzing combustion process and emissions, while varying the intake mixture air/fuel ratio and ignition timing. Optimized engine can reach efficiency of 35% and exhibits notably lower CO, CO2 and NOx emissions already on the engine-out level which in significantly reduces and in some cases eliminates the need for aftertreatment devices on the engine. This directly influences the profitability of CHP unit for its producer due to lower production price as well as for the user through lower fuel consumption, while wider public benefits from lower CO2 and NOx emissions.
F.10 Improvements to an existing technological process or technology
COBISS.SI-ID: 14029851An innovative mechanistically based transient spray model was developed within the project. This spray model enables, in the combination with the advanced mixture-controlled combustion model that was subsequently developed by the same project group, significant improvement in accuracy of the diesel combustion models applied in the real-time system level simulations. These features characterize the progress beyond the state of the art compared to the currently available models applicable in real time simulations that were characterized by the impaired productiveness, which to a large extend arises from their empirical basis.
F.13 Development of new production methods and tools or processes
COBISS.SI-ID: 13969947Experimental and numerical analysis of flow properties was carried out on a model of the NC-Planica wind tunnel. The model was designed in 1:36 scale. Pressure and velocity fields of the flow were measured at different operating conditions of the model. Apart from classic measurement methods, a recently developed non-intrusive optical method for velocity field measurements (ADMflow) was applied. There were several numerical flow simulations (CFD) carried out as well. The analysis focused mainly on functional parts of the wind tunnel that were supposed for training purposes: parachuting section and ski jumping section. According to the results of the analysis, required steps were determined in order to improve the operation of the wind tunnel prototype of NC-Planica.
F.06 Development of a new product
COBISS.SI-ID: 14295835Apparatus and method for non-contact temperature measurement solves the technical problem of determining the temperature fields of high-temperature processes with a good dynamical response and at a high spatial resolution. The process consisting of hot objects (1) and/or hot flows (2) is recorded by a high-speed digital camera (6) with a sensor sensitive mostly to the visible light. A computer (7) is used for continuous acquisition, processing and saving of imaging data. The method of temperature calculation is based on an assumption that high-temperature objects (1) and/or flows (2) radiate as a gray body with constant emissivity and on calibration to a surface with known temperature.
F.32 International patent
COBISS.SI-ID: 13801243