We developed a detailed steady-state system model, to simulate the performance of an integrated five-zone Variable Refrigerant Flow (VRF)heat pump system. The system is multi-functional, capable of space cooling, space heating, combined space cooling and water heating, and dedicated water heating. Methods were developed to map the VRF performance in each mode, based on the data produced by the equipment system model. The performance maps were used in TRNSYS annual energy simulations. Using TRNSYS, we have successfully setup and run cases for a multiple-split, VRF heat pump and dehumidifier combination in 5-zone houses in 5 climates that control indoor dry-bulb temperature and relative humidity. We compared the calculated energy consumptions for the VRF heat pump against that of a baseline central air source heat pump, coupled with electric water heating and standalone dehumidifiers. In addition, we investigated multiple control scenarios for the VRF heat pump, i.e. on/off control, variable indoor air flow rate, and using different zone temperature setting schedules, etc. The energy savings for the multiple scenarios were assessed.

关键词：节能；制冷剂；空调；热泵；温度控制

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Congress, recognizing the potential for energy savings in the use of general lighting for illumination, requested in the Energy Independence and Security Act of 2007 (EISA 2007) that the Department of Energy (DOE) contract with the National Research Council (NRC) to conduct a study to assess the status of solid-state lighting (SSL) as a technology. The contract requested that the National Academies provide an objective and independent assessment of the current state of solid-state lighting and its future potential for accommodating the new minimum efficiency standards for lighting.

关键词：节能；照明；固态照明；发光二极管

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The results showed that:applying Oxygen-enriched combustion technology to the existing cement clinker calcined equipments,the coal powder consumption,the volume of flue gas and CO2 concentration in the flue gas of unit cement clinker occurred regular changes,When the O2 concentration increased from 21％ to 30％,the coal powder consumption decreased by 17.78％,the flue gas volume was reduced by 12.73％ and the CO2 concentration in the flue gas increased to 76.57％.If the enterprise used the oxygen-enriched atmosphere of O2 concentration for 30％ to form the coal combustion,it can save coal about 71.87 t/d,equipment production capacity increase by 41.75％ and capture CO2 products about 2662 t.Every year,this resulted in the profit increasing 103 million yuan.

关键词：节能；富氧燃烧；水泥；经济预测

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On the premise of utilizing and coordinating capacity of steelmaking and rolling,the mathematical model of integrated batch planning can create integrated batch planning to combine steelmaking-casting-rolling closely according to each process constraint conditions and optimization objective.Furthermore,another mathematical model of job scheduling based on heat process model is proposed to not only guarantee the logistics balance between continuous casting and hot rolling,but also acquire the highest ratio of DHCR and lowest energy consumption.

关键词：节能；热过程模型；炼钢-铸件-轧制；进度管理；批量计划

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This project focused on the use of home energy ratings as a tool to promote energy retrofits in existing homes. A home energy rating provides a quantitative appraisal of a home's asset performance, usually compared to a benchmark such as the average energy use of similar homes in the same region. Home rating systems can help motivate homeowners in several ways. Ratings can clearly communicate a home's achievable energy efficiency potential, provide a quantitative assessment of energy savings after retrofits are completed, and show homeowners how they rate compared to their neighbors, thus creating an incentive to conform to a more >social standard. An important consideration is how rating tools for the retrofit market will integrate with existing home energy service programs. For residential programs that target energy savings only, home visits should be focused on key efficiency measures for that home. In order to gain wide adoption, a rating tool must be easily integrated into the field process, demonstrate consistency and reasonable accuracy to earn the trust of home energy technicians, and have a low monetary cost and time hurdle for homeowners. Along with the Home Energy Score, this project also evaluated the energy modeling performance of SIMPLE and REM/Rate.

关键词：节能；能源审计；能源消耗；性能评估

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This report summarizes commissioning, short-term testing, utility bill data analysis, and results of on-site monitoring with a focus on the three-bedroom base scope and DER units. Findings from the implementation, commissioning, and short-term testing include air infiltration reductions of greater than 60% in the DER building; a hybrid heat pump system with a savings to investment ratio > 1 (relative to a high efficiency furnace) which also provides the resident with added incentive for energy savings; and duct leakage reductions of > 60% using an aerosolized duct sealing approach.

关键词：节能；经济效益；电器设施；热带气候；居住房屋

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This report documents the development of part-load performance curves and there use with the EnergyPlus simulation tool to estimate the potential savings from the use of Rebel units compared to other standard options. The conventional direct-expansion cooling model in EnergyPlus and its performance curve equations are not appropriate to use to capture the Rebels performance; therefore, performance curves suitable for the Rebel unit were developed. The data for the performance curves were collected through a series of laboratory tests. A detailed Energy Plus model was developed for a prototypical big-box retail store. The model used the new performance curves along with detailed energy management control code to estimate the energy consumption of the prototypical big-box retail store in three locations (Houston, Log Angeles and Chicago). The energy consumption by the big-box store was then compared to a store that used three different reference units.

关键词：节能；能量损耗；联邦法规；负荷分析；性能评估

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This article selects GanSu Province, the weak ecological environment, as the research object.In accordance with the documents research and mathematical statistics, and the "bottom-up" study method., we made an research on energy consumption and the CO2 emission of GanSu province from the tourism travel , tourism accommodation, and tourism activities, respectively.From the result, GanSu's tourism with low-carbon and energy-saving characteristics, accounting for 0.45％ energy consumptions and 0.86％ CO2 emission in that of the GanSu's tourism.It shows that tourism fits in with the requirements of low-carbon tourism development.However, one of the most important factor in the tourism energy consumption and the CO2 emission is the tourism transportation, accounting for 68.83％ energy consumptions and 65.96％ CO2 emission in that of tourism respectively, which should be focus on as the key link in low-carbon tourism development.

关键词：节能；低碳旅游；能源消耗；CO2排放；甘肃省

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The current practice for evaluating the payback period for a GSHP application can be time consuming and expensive owing to the large number of inputs required by simulations and the complexity of the simulations. It is highly desirable to have a tool that can estimate the payback period with reasonable accuracy but minimal expenditure of both time and money. An approach to simplifying the evaluation effort is to identify the key parameters that most significantly affect the payback period of GSHP applications. Through a comprehensive parametric study, key parameters are identified that, within a typical range of variations, can make more than a 30% difference in the payback period for implementing a typical GSHP system in typical medium-size office buildings.

关键词：节能；地源热泵；办公楼；筛查；电脑仿真

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The existing parallel type pressurized water supply pipeline of high-rise buildings has been improved to build energy-saving high-rise building water supply systems.Series-parallel combined constant pressure water supply pipeline is designed.Antipollution high water tank is reasonably installed above the middle area of the building to supply water for the middle area high water tank and supply pressurized water by water pumps for high-rise district.And PLC control system is designed to control the work efficiency of the water pumps according to the sensor feedback information.Verified by calculation and simulation,series-parallel combined constant pressure water supply pipeline is better than parallel water supply pipes in saving the energy which is about the middle-Hybrid phase consumption of the latter.PLC control is simulated and the results show that PLC can effectively control the water supply system to ensure stable water pressure so as to save energy.

关键词：节能；高层建筑；供水管道；串并联结合；PLC

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