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Online since: December 2014
Authors: Liang Yuan, Yu Li, Ze Hong Li, Yuan Yuan Shi, Shi Feng Li
Hotel and restaurant energy consumption and carbon emission mainly are air-conditioning system (all air systems and fan coil + fresh air system) and hot water circulating pump systems.
Table 3 Methods on Public Building Energy Consumption and Carbon Emission Softwa-re Develo- per Main function Input or output Advantage Disadvantage BLAST Univer- sity of Illinois Industrial cooling and heating load calculation; air handling systems and electrical equipment energy consumption Input file by a special module HBLC in the Windows or directly edited in Notepad Friendly Windows-based interface; structured input file; energy consumption analysis under thermal comfort, high-intensity or low-intensity radiation and varying heat transfer coefficient Professional knowledge and deep understanding of engineering remand DEST Tsinghua Univer- sity Annual building hourly calculations of temperature, air conditioning load, AHU equipment load and checking, wind, water network and refrigeration station AUTOCAD embed; interface visualization; a "section design, section simulation" design thinking Support more complex projects, such as multi-building, sloping wall; enhanced thermal characteristics
ASCII text-based input and output files The most powerful modeling software; BDL kernel is used to the other softwares; very detailed hourly building energy analysis report; can to used for complex structure and function DOS operating interface; specialized training to solve input difficulty; high professional knowledge requirements; longer running time Energy Plus U.S.
Online since: October 2013
Authors: Li Jun Yang, Ming Fei Wu, Yun Hong Zhu
The partition approach is: Firstly, the sea water and tidal flat is separated by water index.
After each time of spectrometry, the soil of 40mm depth and 0.4kg weight on the corresponding point is sampled with a professional soil sampler-a circular cutting ring, the diameter and height of which is 70mm and 52mm respectively.
In Chinese, Bulletin of Soil and Water Conservation, 2007(4):107-113
In Chinese, Advancesin Water Science, 2010(2):59-65
In Chinese,Journal of Water Resources and Water Engineering, 2011(6):130-135+139
Online since: July 2011
Authors: H. Hoornahad, E. A. B. Koenders
Therefore understanding the behavior of the mixture during this early period is a crucial requirement for the technical and economical success of professional production sites.
Vp,v = (1) Vs = .π. ∑ ni ri3 (2) Vp,e = .π. ∑ ni [(ri + δ p,e)3- ri3] (3) Table 1: Paste phase specifications Ingredients Portland Cement I 52.5 Limestone powder Water W/C Volume proportion 0.365 0.214 0.413 1.13 Mix N.
Except for the amount of superplasticizer, the volume fractions of the other ingredients in the paste mixes was kept constant and the volumetric water to cement ratio was thus kept equal to 1.13 while the corresponding consistency of each mixture is characterized by a parameter called characteristic stress (Cs) which can be obtained regarding the results of the controlled tensile deformation test for bridge paste in the fresh state [5, 6] (Table 1).
Online since: February 2022
Authors: Dmitry Yu. Dubrov
Distilled water comes from container 1 through connecting tube 2 and the capillaries of porous insert 5 into the cutting zone.
Let us consider an example of calculating the amount of water consumed in open-type evaporative cooling.
Q=m(cΔT+r) (3) Assuming that all the heat entering the cutter is spent on heating water and vaporization, we determine the required amount of water m spent on processing one part m(cΔT+r) =Qcτ m=Qcτ(cΔT+r), (4) where c – specific heat of water, J/(kg K); r – specific heat of vaporization, J/kg; m – weight of water, kg; ΔT – temperature difference, °С.
Water consumption during evaporative cooling of titanium alloy VT3-1 (VK6; t = 4mm; s = 0.6mm/rev; v = 25-200m/min.)
As the cutting speed increases, the amount of water required for cooling increases.
Online since: May 2012
Authors: Nan Lin, Fei Liu
Wuhan urban characteristics Wuhan has a deep water culture characteristics, with water as the main body formed the water culture landscape and water-related social and cultural phenomena.
Riverside is the largest urban characteristic of Wuhan, to city as the center, by the Yangtze River is given priority to, constitute a large water channel, to ensure the good ecological environment.
Wuhan water system developed, riverside and lakeside characteristic distinctive.
Water area of more than 2000 square kilometers, about of the city has a total area of one-fourth, which is unique in major domestic cities[3].
"Ring" is point to form water green ring.
Online since: March 2015
Authors: Zhen Wei Tian, Jian Jun Wang, Shan Qing
General principle: determined index should be professional data which is general, common, and easy to obtain.
Therefore, delivery distribution link indexes mainly include water loss rate, steam loss rate, compressed air loss rate and electricity loss rate.
Cigarette enterprises recycle-use link mainly involves recovery and utilization of water and condensed water.
The indexes include recovery rate of water and condensed water.
Through a year of energy efficiency benchmarking, great potentials are found in treatment and utilization of water, utilization of condensed water, utilization of sonic soot blower and transformation of frequency conversion.
Online since: May 2013
Authors: Ling Feng Li
The products of most gas and oil wells contain formation water to a certain degree.
High-salinity formation water corrosion is more common in fracturing wells.
In general, the formation water corrosion of tubing, casing, and equipment includes[1,4,5,6]: a.
Corrosion that is similar to formation water corrosion, including: seawater corrosion, injected water corrosion, highconcentration completion fluid corrosion, injected steam corrosion, and geothermal well production corrosion.
References [1] Wan Renpu: Advanced Well Completion Engineering (Gulf Professional Publishing, U.S. 2011)
Online since: December 2012
Authors: Yong Li Ma
Using modern agricultural engineering, to artificially change the natural environment, provide a relative even the most suitable environmental temperature, humidity, light, water, fertilizer and other environmental conditions for animal or plant, makes agriculture get rid of dependence on the natural environment in a certain extent.
The network communication link is maintained by a professional network operators (China Telecom), avoid the user takes big effort to maintain lines of communication and other issues when using the monitoring system, thus saving user’s cost in initial investment Facts have proved that the monitoring system has the advantages of reliable operation and real-time data acquisition.
Online since: December 2012
Authors: Shu Wang Yan, Zhi Liang Huo, Jun Ling Wang
In water conservancy, port, coastal and offshore engineering, building and foundation in addition to withstand tremendous vertical dead load of long-term effects, often suffer from horizontal load and moment load caused by storms, waves, currents,etc.
Established Congress of Chinese Renewable Energy Society Ocean Energy Professional Committee and the first session of the Symposium (2008).
Online since: November 2014
Authors: Shi Jia Jin, Fei Yin
Analysis of six foot robot mechanism and steering gear in the desert environment Shi Jia JIN1, a, Fei Yin2,b 1 Mechanical Engineering College,JiLin Agricultural Science and Technology College, Ji Lin,JiLin ,China 2 Water Conservancy and Civil Engineering College , JiLin Agricultural Science and Technology College,Ji Lin,JiLin ,China a309236260@qq.com, b48236256@qq.com Keywords: Operation mechanism; The gait trajectory.
Especially some soft sand, even if some of the existing professional desert vehicles is difficult to move on.
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