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Please describe them briefly.What are the major components of an energy system in a company?In which areas can the energy efficiency be improved?What measuring units are commonly used for energy?Compressed air is one of the most expensive energy carriers. Which aspects should be considered?Please name typical renewable energy carriers.Answers and where to find themQuestion 1 ? Which areas are covered by comprehensive energy management? Please describe them briefly.Chapter 4.1 of the textbookEnergy management comprises five areas: OrganizationAnalysis and planningMonitoringConsultingImplementationAreaContentsOrganization Installation of an organizational unit focused on energy-related matters;Clear guidelines concerning responsibilities (organizational chart) and funds;Integration of this unit into investment-related decisions.Analysis and planningCollection and documentation of data concerning energy supply and utilization in the company;Description of the energy situation (annual update);Survey of weak points and saving potentials;Drawing-up or commissioning of energy analyses (measurement of equipment or machines);Elaboration and planning of energy saving measures.MonitoringMonitoring of energy conversion equipment and energy consumers;Creation of energy benchmarks (development);Creation of company comparisons concerning energy efficiency (e.g. benchmarks).ConsultingDescription of the energy situation (energy report to management);Evaluation of different supply contracts;Market analysis.ImplementationImplementation of energy saving measures;Maintenance of energy facilities.Question 2 ? What are the major components of an energy system in a company?Chapter 4.2 of the textbook Question 3 ? In which areas can the energy efficiency be improved?Typical areas of improvement are (see also slides):Cooling/refrigeration;Heating;Compressed air;Insulation;Heat recovery;Separation processes;Lighting;?Question 4 ? What measuring units are commonly used for energy?Chapter 4.2 of the textbookEnergy consumption is measured in joules (J, kJ, MJ, GJ). A further common unit is kWh: 1?kWh equals 3?600?kJ. Energy sources, such as fuels, are also stated in kilograms (kg), standard cubic metres (scm) or litres (l). These units can be converted into kJ or kWh (see conversion table at the end of the textbook).Besides the energy consumption, the energy power is also an important factor. It indicates how much work is performed within a specific time and is usually measured in watts (W, kW, MW, GW).Question 5 ? Compressed air is one of the most expensive energy carriers. Which aspects should be considered?Chapter 4.4.3 of the textbookAre the compressors and driers switched off after operating time? Can the pressure be maintained after closing the valves?Are the pipes and plants checked for leaks (regular check after operating time or at the weekends)?Have the delivered air volume and the pressure of the compressor been measured (many compressor manufacturers offer this service)?Is the pressure reduced to the required minimum?Is a high level of pressure maintained for one single consumer although the others require lower pressure? (Install two separate grids using two pressure levels for this consumer.)Is the temperature of the intake air kept as low as possible (the colder the higher the efficiency)?Do you avoid using compressed air for cleaning?Are the air-intake filters regularly cleaned (avoiding pressure loss)?Is it possible to separate areas in the compressed-air system?Is it possible to cool the compressor with oil or water and to reuse the heat?Is the waste heat generated by the air-cooled compressors reused in winter (e.g. for heating the production area)?Is it possible to use electronic instead of pneumatic tools?...Question 6 ? Please name typical renewable energy carriers.Chapter 4.5 of the textbookFor this reason, the analysis should document which renewable energy sources are used for which purpose and what percentage they account for in total energy consumption. Examples include: electricity generated by the company from hydropower or photovoltaic, heat obtained from biomass or solar collectors. 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