Utilities account for a significant portion of the fixed cost associated with running a petrochemical plant, however, utility optimisation has not received much focus until recently. This change was driven by rising energy prices, stricter environmental policies, and the threat of climate change. Several utilities are used including steam, compressed air, nitrogen, cooling water, refrigeration ...

The majority of integrated energy systems (IES) for combined electricity, heat and refrigeration generation, or trigeneration, are based on gas engines. fuel efficiency engines strictly influenced by intake air temperatures. Practically in all IES the absorption lithium-bromide chillers (ACh) applied conversing removed from engine into form chilled water. peculiarity trigeneration food industri...

In year-round hot climatic conditions, conventional air conditioning systems consume significant amounts of electricity primarily generated by power plants. A compression-assisted, multi-ejector space cooling system driven low-grade solar thermal energy is investigated in terms and exergy performance, using a real gas property-based ejector model for 36 kW-scale application, exposed to annually...

The fuel efficiency of cooling air at the inlet marine low speed diesel engine with water-fuel emulsion combustion by ejector chiller utilizing heat exhaust gas along route line Mariupol– Amsterdam–Mariupol was estimated. values available refrigeration capacity chiller, intake temperature drop and corresponding decrease in specific consumption main varying climatic conditions were evaluated. Th...

Two-phase ejectors have been gaining increased attention in recent years due to their ability to directly improve the COP of the cycle. Of common interest in two-phase ejector studies is how the ejector improves cycle COP. However, less emphasis is often given to the performance of the two-phase ejector itself. The amount of COP improvement offered by an ejector cycle is very strongly influence...

This paper summarizes the numerical analysis of a liquid-liquid ejector pump with focus on the accuracy of the employed cavitation model and in view of its potential application as a dualor multi-liquid mixing and injection system. While the use of gas-phase or gas/liquid-phase ejection systems has found wide application in gas/hybrid burners and scrubbers for air pollution control; the use of ...