Optimum heating of boiler drums

نویسندگان

چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Eigenfrequencies of Fractal Drums Eigenfrequencies of Fractal Drums

A method for the computation of eigenfrequencies and eigenmodes of fractal drums is presented. The approach involves first mapping the unit disk to a polygon approximating the fractal and then solving a weighted eigenvalue problem on the unit disk by a spectral collocation method. The numerical computation of the complicated conformal mapping was made feasible by the use of the fast multipole m...

متن کامل

Eigenmodes of Isospectral Drums

Recently it was proved that there exist nonisometric planar regions that have identical Laplace spectra. That is, one cannot “hear the shape of a drum.” The simplest isospectral regions known are bounded by polygons with reentrant corners. While the isospectrality can be proven mathematically, analytical techniques are unable to produce the eigenvalues themselves. Furthermore, standard numerica...

متن کامل

Selection of the Optimum Ndt Methods for Determination of Steam Boiler Remaining Life

During the lifetime of any industrial equipment, including steam boilers and pressure vessels, it may be required, for various reasons, to estimate its remaining service lifetime. The operation of steam boilers is a complex process resulting in metal fatigue due to temperature cycling and pressure fluctuation, as well as in erosion and chemical depositions. Thus, during boiler operation, variou...

متن کامل

The Influence of Gas Heating on Material Properties of P92 Steel During Boiler Tube Alignment

Preliminary note The pipes and the pipe walls are of the utmost importance to all power plant facilities. Under exploitation, they are subjected to effects of aggressive media, high temperature corrosion and possible mechanical damage. Consequently, special attention is paid to the control of material properties during the power plant construction in order to minimize the risk of flaws or failu...

متن کامل

Optimum Subsidy to Promote Electric Boiler Investment to Accommodate Wind Power

The increasing development of combined heat and power (CHP) plants is exacerbating the wind power curtailment problem in regional power grids during the winter heating season. Electric boilers (EBs) were proposed to be employed within CHP plants to relieve this problem. However, CHP plants usually have no incentive for investing in EBs. Therefore, CHP plants must be incentivized to make such in...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Scientific Letters of Rzeszow University of Technology - Mechanics

سال: 2014

ISSN: 0209-2689,2300-5211

DOI: 10.7862/rm.2014.22