In this paper,the progresses of controlled cycling distillation were reviewed. The mathematical models of the process were classified and discussed with the main introduction of the models of Tofegard & Jorgenson and Thompson & Furzer.
Unit 7 and Unit 8 in Huangtai thermal power plant were constructed in 1980s. Boiler 7, CE subcritical radial reheat control circulation drum type boiler, was imported from Japanese Mitsubishi company, the economizer adopts Spiral-finned tubes.
The theory of moving coal off loading technique is studied, the fundamental principle and technical parameter including coal off loading capacity, the shortest time of control circulation, movable door stress, power of complete equipment and so on was analysed, and the equipment used to improve anthracite lump coal yield is developed.
This paper introduces a common method of arbitrary n multiple circulation, gives the frame of recursive and non-recursive algorithm for arbitrary n multiple circulation, studies how to control circulation variable to optimize program.
A pure load-controlled and pure displacement-controlled cycling procedure were compared.
These tests involved five different types of strain-controlled cycling: creep at constant tensile stress; linearly varying strain at different frequencies; and hold periods at maximum compressive strain, maximum tensile strain, or both.
Fatigue crack propagation rates were measured in two classes of directionally solidified eutectic alloys under isothermal, stress-controlled cycling at temperatures of 298 to 1311 K.
A further set of experiments were carried out to investigate the effect of displacement controlled cycling, see Figure 13.
This paper introduces a method of testing fatigue of metals at room-temperature when the strains are controlled. The medium carbon steel specimens in seven groups undergo different strains, and the stress-strain curve(σ-ε curve) and the strain-lifetime curve(ε-N curve) are plotted. These curves can be used to estimate the lifetime of structural members.
In water circulating system,the range of pH value in adding the antiscale forming agent---polyphosphate must be held to prevent the presence of carbonate and phosphate scales in order to guarantee the stabilization of the property of water is analysed.Equations are deduced.
In this paper treatment for recycle cooling water of a concentration from2.0 to 5.5 was described.YS-04 water treating agent was used as a corrosion andscale inhibitor.In order to suit widely varying quality of make-up water,a processwas developed applicable to both cases of controlling and not controlling pHvalues.The related boundary conditions of YS-04 water treating agent weresuggested.