This research analyzes the energy consumption and saving performance in the industries in the U.S.A. All energy assessments implemented were for facilities whose annual energy consumptions less than 9,000,000 kWh (Small and Medium-sized industries) that belong to the manufacturing industries with Standard Industrial Classification (SIC) codes ranging from 2000 to 3999 in addition to SIC codes starting with 49. In this research, assessments are classified based on the SIC codes with recommendations analysis for each classification to get a better idea of what recommendations were suggested in each major industrial sector, knowing that sixty-eight assessments were made, and their SIC ranged from 14 to 49. Additionally, this research could be considered as a guide for energy engineers and other personnel involved in the energy assessment process. The information investigated can give a better prediction for composing better energy demanding industries and minimizing energy consumption. More than 61 energy assessments were conducted for manufacturing facilities and analyzing the data gathered and processed. Through the research, the Fabricated Metal industry achieved the highest average kWh savings and cost savings within the industries studied in this research. While according to the average gigajoule (GJ) savings, the fabricated metal industry ranked second within the studied industries. On the other hand, Food and Kindred Products achieved the highest GJ energy savings within the studied industries. Lighting, motors, compressors, and heating, ventilation, and air conditioning (HVAC) were the most contributing industries in a total of 547 recommendations
The primary objective of this study is to achieve net-zero-energy (NZE) wastewater treatment plants (WWTPs) by utilizing energy efficiency opportunities (EEO's), combined heat and power (CHP) systems, and other renewable energy sources, e.g., solar, water, and wind powers. This study discusses an innovative energy solution for WWTPs in the United States, and one of the WWTPs with a flow capacity of 1.5 million gallons per day (MGD) was selected as a case study. An optimization tool, Hybrid Optimization of Multiple Energy Resources (HOMER) software, is used in this study to find the best energy system configuration to run the system. An energy audit for one WWTP in early 2020 and the report is used to do this study. The proposed EEO's were able to reduce WWTP energy consumption by about 11%. The excess anaerobic digester gas was utilized in a CHP system to cover about 42% of the facility's consumption. Also, 3% of the utility energy consumption can be claimed by microturbines in the aeration tanks. Another two renewable energy systems, solar photovoltaic (PV) with 29% and water turbines with 15%, contribute to covering 100% of the WWTP energy consumption and achieving an NZE WWTP.
A hospital is a high-technology center that must be superbly organized. Therefore, the existence of medical equipment management program is considered as an essential tool for managing and monitoring medical equipment. In application, many automated systems have been developed with different domains. The purpose of this article is to develop a customized software package using C language for medical equipment management appropriate for small-scale hospitals under the umbrella of computerized maintenance management system. Indeed, the developed program covers different phases of medical equipment management including inventory, preventive maintenance, calibration, and repair. The automated system introduces 8 separate windows for management; every window presents its own data that support overall management system. The validation of the developed program was carried out based on a data set of 235 pieces of medical equipment belonging to 7 departments in a general Egyptian hospital. The results point out the convenience and consistency of the developed program.
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