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Problems of Unsustainability
Published in Susan Krumdieck, Transition Engineering, 2019
Sustainability is quite easy to define: it means that what you are currently doing works, and will keep working, and can be replicated indefinitely. Thus, unsustainable energy use is a design flaw and will cause system failure at some point. The primary reason that our current energy systems are unsustainable is the reliance on fossil fuel. The primary source of risk to normal operation is the reliance on oil for nearly all transportation. Some engineering consulting companies are now providing sustainability engineering in supply chain, procurement and logistics for companies, cities and the military (Mathaisel et al. 2013). The current practice of energy management and sustainability engineering uses energy auditing as a main tool – measuring the carbon footprint, energy intensity and costs associated with energy, water and waste disposal. Auditing of current energy use and assessing the exposure of transport activities to fuel price rises is also a good starting point for assessing the risks of reliance on unsustainable energy.
Introduction
Published in J.K. Yates, Daniel Castro-Lacouture, Sustainability in Engineering Design and Construction, 2018
J.K. Yates, Daniel Castro-Lacouture
Energy auditing is defined by the Australian Department of Primary Industries and Energy (1994, p. 1) as “a periodic examination of an energy system (or a part of a system) to ensure the most appropriate sources of energy are employed and this energy is used as efficiently as possible.” Energy auditing is a systematic way of gathering and evaluating information with regard to the quantity and type of energy used, and is a specialized form of environmental auditing. It comprises the periodic survey, measurement, reporting, analysis and examination of an energy system for individual plants, a production process, or an entire organization. The goals of energy auditing are to promote energy efficiencies, to identify areas of potential savings in energy and its related expenditure, and to promote energy management to achieve, maintain, and recognize further potential savings.(Langston and Ding 2001, p. 263)
Institutional Energy Metering: Challenges and Opportunities
Published in Viktor Boed, Ira Goldschmidt, Robert Hobbs, John J. McGowan, Roberto Meinrath, Frantisek Zezulka, of Facilities Automation Systems, 1999
A healthy energy system (again, production, distribution, and consumption of energy) should behave not unlike a healthy body, with daily nurturing (analysis), exercise (engineering), a healthy diet (production), no sudden starts and stops, gradual ramp ups and downs, and a subconscious daily routine embedded in one’s life. Unless such routines are embedded in the fabric of an organization, the routines will tend to atrophy. It is perhaps the single greatest challenge of any organization to state its objectives clearly so daily routines are properly identified and systematically implemented. Proper energy management not only generates savings, it also leads to reduced pollution and an improved building and global environment. Ultimately, energy management is not a choice, it is an obligation.
Energy model-based benchmarking of the drying process in the stenter machine
Published in Drying Technology, 2021
Nikunjkumar G. Patel, Dadasaheb J. Shendage, Munjal G. Parikh, Surajit K. Basu, Mukund H. Bade
In the context of energy utilization, energy benchmarking is an essential tool to appraise, encourage and justify cost effective energy management opportunities within industries that pays off in reduced energy costs and improved productivity, thereby enhancing competitiveness without compromising product or service quality, which is determined by either statistically or by applying energy model. Statistical energy benchmarking is widely in use due to its simplicity and ease of determination. However, statistical benchmarking is highly influenced by the life, the quality and, the operating parameters of process/system/equipment participating in the survey for determining the benchmark energy consumption. On the other hand, the energy model based benchmarking is a recent approach, which gives insight for energy consumption patterns and overcomes the disadvantages of statistical energy benchmarking.
An analysis on energy performance indicator and GWP at Airports; a case study
Published in Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2021
Mehmet Kadri Akyüz, Haşim Kafalı, Önder Altuntaş
A large part of the global energy requirement is currently provided by fossil fuels. The fact that fossil fuels are the main reason for the global warming problem raises the obligation to use energy more efficiently. Energy management is the most effective way to reduce energy consumption without compromising production quantity and quality in the industrial sector, comfort conditions, and service quality in commercial buildings. The energy-saving potential in Turkey is higher than the amount produced from renewable energy sources. Recovery of this potential can be achieved through effective energy management (Aksoy et al. 2013). Global warming and climate change have made energy efficiency one of the most important issues in recent time for countries (Gülten 2020).
Optimal set-point regulation in HVAC system for controllability and energy efficiency
Published in Advances in Building Energy Research, 2020
Shohei Miyata, Jongyeon Lim, Yasunori Akashi, Yasuhiro Kuwahara
Because recently developed HVAC systems are becoming ever more complex with different sub-systems operating simultaneously, system designers and service engineers face challenges for the energy-efficient operation of the entire system. In this regard, energy management is essential because it allows the identification of opportunities for effective energy use. It sometimes provides solutions that require relatively low or no extra cost, of which system controller tuning, e.g. set-point regulation, is considered representative (Komareji et al., 2007). This paper proposes the optimal set-point regulation in HVAC system for energy efficiency.