Open AccessEnergy Efficiency in Ports: Comparative Performance and Cost Analysis of Heat Demand in Port Facilities Using Solar Energy
Author(s) -
Ion Pană
Publication year - 2021
Publication title -
scientific bulletin
Language(s) - English
Resource type - Journals
eISSN - 2392-8956
pISSN - 1454-864X
DOI - 10.21279/1454-864x-21-i1-003
Subject(s) - efficient energy use , energy consumption , renewable energy , port (circuit theory) , environmental economics , energy accounting , energy engineering , work (physics) , solar energy , audit , energy management , consumption (sociology) , energy (signal processing) , engineering , business , economics , electrical engineering , accounting , mechanical engineering , social science , statistics , mathematics , sociology
The evolution of calculation programs currently allows the modelling of engineering systems with a high degree of accuracy, reducing the simplifying assumptions used in the construction of models. The paper presents a combined model of a pulsation damping system and a cooling system of a reciprocating compressor. The numerical simulation uses the LMS Amesim program, the academic license offered free of charge by Siemens to teachers and students. The model with a large number of tracked variables allows the analysis of adjustments and the effects of changes to the conditions in the compression system. They are considered: the drive mechanism, the structure of the compression cylinders, the influence of the dead space, the compressor valves, the gas composition, the suction and discharge pipelines, the anti-pulsation bottles, the heat exchangers for the gas cooling. They are indicated the modalities of action regarding the fulfilment of the conditions mentioned in the standards regarding the pressure variation, the damping of the pressure waves, the reduction of the energy losses and an efficient cooling.