real time control of distributed generation

... without compromising quality of life The estimated world reserves of fossil fuel [1] and their energy density are shown in Table 1.1 With a doubling time of energy consumption of 14 years, if only coal ... gram of uranium 238 will produce about × 1010 J of heat The cost of nuclear energy is still slightly higher than that of coal or gas (Table 1.2) The environmental problems with disposal of expended ... care of by sophisticated control systems with energy storage elements, in most cases By the year 2005, more than 20,000 megawatts (MW) of wind power generators will be in place, with much of it...

Ngày tải lên: 21/03/2014, 12:12

... level of the aeration tank(s) at a preset control point by varying the air flow rate to the aeration system Supervisory control and data acquisition system collects facility-wide data and allows control ... Dissolved-oxygen controls Supervisory control and data acquisition (SCADA) system Fine-bubble aeration Staging of treatment capacity Recover excess heat from wastewater Efficient mixing of aerobic ... materials; adequately control WWTP processes Pollution of receiving water courses following upset of wastewater treatment process by industrial discharges Adequate pretreatment of industrial wastewater;...

Ngày tải lên: 05/09/2013, 15:28

... for the effect of Stefan number on the growth of interface The faster growth of interface leads to decrease in the time required for complete melting of the PCM Hence, the addition of high conductivity ... Dr.Pohekar is a life member of Solar energy society of India and International society of multi-criteria decision making, and fellow of Institution of Engineers (India) and Maritime Research Institute ... Journal of Energy and Environment (IJEE), Volume 1, Issue 3, 2010, pp.445-458 Figure Effect of Biot number on the time- wise radial interface location Figure Effect of Stefan number on the time- wise...

Ngày tải lên: 05/09/2013, 16:10

... simplicity of the control When operated in dcoffset mode can a phase shift of the gate signals directly control the phase of the current [5] D Device characteristics To facilitate the success of the ... principle of the MERS is based on controlling the path of the current through the device (Fig 2) By doing this can either the phase of the current or the size of the injected voltage be controlled ... Example of MERS applications (a)Light intensity control of discharge lamps (b)Voltage and power factor control of induction motor (c)Series compensation in transmission system Fig Example of resulting...

Ngày tải lên: 15/10/2013, 16:10

... so the conversion of diamond into graphite is spontaneous – but don’t worry, it’s so slow that your ring won’t turn into pencil lead in your lifetime (or through many of your generations) Tro, ... reaction to be spontaneous The 3rd Law of Thermodynamics Absolute Entropy • the absolute entropy of a substance • is the amount of energy it has due to dispersion of energy through its particles the ... ∆Esystem + ∆Εsurroundings • Think of a match burning, crumbling paper, etc Chemistry, Julia Burdge, 2nd e., McGraw Hill First Law of Thermodynamics • Conservation of Energy • For an exothermic reaction,...

Ngày tải lên: 28/11/2013, 01:12

... state of motion of an object of mass m and speed v We define its kinetic energy K as: mv K= We can use the equation above to define the SI unit for work (the joule, symbol: J ) An object of mass ... a time interval ∆t then we define as the average power as: Pavg W = ∆t The instantaneous power is defined as: dW P= dt Unit of P : The SI unit of power is the watt It is defined as the power of ... kinetic   net work done on  energy of a pareticle  =  the particle      The work-kinetic energy theorem holds for both positive and negative values of Wnet If Wnet > → K f − K i > → K...

Ngày tải lên: 13/12/2013, 05:15

... the work of all the non-consrvative forces of the system (8-10) An example of the principle of conservation of mechanical energy is given in the figure It consists of a pendulum bob of mass m ... value of U ( x) Then we can solve the equation above and determine K mv From the definition of K = the kinetic energy cannot be negative This property of K allows us to determine which regions of ... system that consists of a block of mass m and the floor on which it rests The block starts to move on a horizontal floor with initial speed vo at point A The coefficient of kinetic friction between...

Ngày tải lên: 23/12/2013, 00:16

Ngày tải lên: 01/01/2014, 01:50

... number of successful higher level languages have been developed with the express purpose of catering for the design of operating systems and real- time control The most obvious example of such ... written by a really skilled user of machine language, and to this day important components of systems are often developed at (or very near to) machine level, in the interests of saving time or space ... complete the writing of the book And, of course, several generations of students have contributed in intangible ways by their reaction to my courses The development of the software in this book...

Ngày tải lên: 26/01/2014, 07:20

... Association of Soil Sciences [7] Vietnam Association of Soil Sciences (1997), Soil profile's file of Binh Dinh Province, 528 pp VNU Journal of Science, Earth Sciences, T.XXIII, N0 1, 2007 VNU JOURNAL OF ... level + Group of the convertible land is equivalent to the level of the erosion potential: consists of soil with erosion potential from 100-200 and has area of 25.690 hectares (28.3% of the convertible ... CSIC, 1998) The results of erosion potential classification - Based on Binh Dinh profile’s file (Vietnam Association of Soil Sciences, 1997), values of K for 117 hill soil profiles throughout the...

Ngày tải lên: 13/02/2014, 12:20

... superposition of the exponential rise to analyze quantitatively the contribution of each phase The amplitude and rate constant of each of the three phases can be calculated by deconvolution of the traces ... thylakoids in the absence of additives or in the presence of lm DCMU or dPQ over a range of temperature from 15 C to 25 C The range of temperature was set on the basis of the membrane transition ... and half -time of the JI phase were both decreased with DCMU, demonstrating that the JI rise is not directly related to the reduction of the PQ pool A further analysis of the inuence of PQ reduction...

Ngày tải lên: 19/02/2014, 05:20

... updated with new information, the number of reports for a given product and the content of individual reports may change over time Even with mandatory reporting of serious adverse events for dietary ... complicates the evaluation of adverse event reports There is no certainty that a reported adverse event can be attributed to a particular product or ingredient The number of adverse event reports ... Due to the continuous inclusion of new or updated information into the CAERS system, reports released from CAERS containing adverse event data may change over time Each report received by CAERS...

Ngày tải lên: 19/02/2014, 18:20

... when J of work is involved in the transfer of a coulomb of charge from one point to another (A coulomb is the amount of charge carried by a current of ampere [A] flowing for s Transfer of mole ... side of the membrane to the other When J of work must be done to move coulomb of charge, the where z is the valence of the ion and F is Faraday’s constant The value of ∆G for the transfer of cations ... number of molecules of substrate converted to product per unit of time per molecule of enzyme Typical turnover number values range from 102 to 103 s–1 Enzymes Are Subject to Various Kinds of Inhibition...

Ngày tải lên: 20/02/2014, 01:20

Ngày tải lên: 26/02/2014, 03:20

... pieces of information for each case: the sum of good COIN factors or practices during the decisive phase of the case (out of a maximum of 15), the sum of bad factors (out of a maximum of 12), ... This key finding of the importance of a positive balance of good versus bad COIN practices is even more remarkable given that many of the conventional explanations of the outcomes of these cases ... Casamance [Movement of Democratic Forces of the Casamance] NATO North Atlantic Treaty Organization NPFL National Patriotic Front of Liberia OSD(CAPE)IW Office of the Secretary of Defense, Cost Analysis...

Ngày tải lên: 06/03/2014, 09:21

... Sciences Division Office of Biological & Environmental Research U.S Department of Energy Lynn Hudson, Ph.D Director Office of Science Policy Analysis Office of Science Policy Office of the Director ... for the workshop was provided by the Office of Science of the U.S Department of Energy, National Institute of Food and Agriculture of the U.S Department of Agriculture, Gordon and Betty Moore ... chair, is professor of cellular and molecular pharmacology and executive vice dean of the School of Medicine at the University of California, San Francisco (UCSF) He has been a member of the UCSF...

Ngày tải lên: 06/03/2014, 19:20

... Department of Energy Linda Silverman U.S Department of Energy, Of ce of Energy Efficiency and Renewable Energy Eric Smith U.S Environmental Protection Agency Eleen Trang Of ce of Representative Zoe Lofgren, ... Cruise Control Another suggestion to increase fuel efficiency was through wider use of adaptive cruise control, a version of cruise control in which the vehicle automatically senses the presence of ... thousands of megawatts of new wind capacity, planning for new nuclear-power plants, the development of new natural-gas fields in the Gulf of Mexico, higher CAFE standards, a renewable-fuel standard of...

Ngày tải lên: 06/03/2014, 21:20

Ngày tải lên: 06/03/2014, 23:20

... the range of hydrogen production to end-use routes and the range of fuel cell applications, to assess the viability of different options; and • Assessment of the scope and effectiveness of alternative ... development of improved codes and stan- required for a dedicated hydrogen infrastructure, in the order of dards and the establishment of ‘best practice’ for fuel station some hundreds of billions of euros ... operating time of portable processes, are still required to improve the lifetime, reliability equipment is high on the consumer agenda at the moment and and cost of the systems In the early stages of...

Ngày tải lên: 07/03/2014, 17:20

... following organizations and individuals: • Office of Secretary of Defense (Cost Analysis Improvement Group): Edward Kelly and Fred Janicki • Office of Secretary of Defense (Acquisition, Technology & ... Program The research is sponsored by the Principal Deputy, Office of the Assistant Secretary of the Air Force (Acquisition), and by the Office of the Technical Director, Air Force Cost Analysis Agency ... to the Office of the Technical Director, Air Force Cost Analysis Agency at (703) 604-0387 This report is one of a series of reports from a RAND Project AIR FORCE study entitled “The Cost of Future...

Ngày tải lên: 07/03/2014, 19:20