Generation design

Ozone Generator Design. A better understanding of discharge physics and the chemistry of ozone formation has led to improvements in power density, efficiency, and ozone concentration, initiating a trend toward downsizing. 

Consider a 1,200 kW power reeovery expander-gear-generator designed to be installed in parallel with a natural gas pressure letdown station. The expander shown in Figure 1-2 reeeives the proeess gas at 11 bar and 42°C and expands it to 5 bar. In this ease, the temperature at the diseharge is ealeulated to be 1°C, and sinee the gas eontained water vapor, it will eondense in the expander. This will bring the gas to a suitable dew point, and droplets are removed in a separator downstream of the expander. 

Noncondensing turbines (back-pressure turbines) are widely used by industry to fulfill any number of process requirements. As a general mle, turbine generator design efficiency is reduced by the absence of a... 

Boilers may be either hot water generators or steam generators, designed for land, locomotive, or marine duty, either portable (trailer mounted) or stationary. 

Larger clean-steam generator designs typically employ a pressure vessel (shell) containing a U-shaped tube bundle. The heat source is primary steam supplied to the shell side (which may be amine treated), and secondary clean steam is generated within the tubes. 

Large generator designs incorporate two or three separate casings. The turbine is broken down into three areas high-pressure (HP)... 

Most large generator designs also incorporate a regenerative FW heating facility where from 20 to 30% of the throttle steam may be withdrawn from the turbine at various points to provide the necessary heating. In addition, the primary steam requirement for the FW pump turbines is extracted from the main turbine at the IP to LP crossover point. 

A steam generator designed to operate intermittently to meet peak demands for steam and electricity. 

The synthesis of triquinane acids, initiated by the preparation of isocomenic acid [22], thus provided a general method for control of the stereochemistry of secondary methyl groups in these terpenes. The [4+1] annulation based on the dienes of type 23 then laid the groundwork for the first-generation design and a model study for the approach to retigeranic acid [23]. 

Even so, demand for them is increasing year by year and in some cases quite spectactularly. As an example, both thulium and erbium are used as target materials in some sealed-tube neutron generators and erbium is also used in other generators designed specifically for use in cancer therapy. 

In practice then, a liquid having a low vapor pressure such as oleic acid or lubricating oils is carried by an inert gas to a heater where it vaporizes. As it leaves the heated area, it condenses to form the aerosol. Different generator designs based on condensation of a supersaturated vapor are discussed in the LBL report (1979). 

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