Temperature static

Static temperature is the temperature of the flowing fluid. Like static pressure, it arises because of the random motion of the fluid molecules. Static temperature is in most practical instaUations impossible to measure since it can be measured only by a thermometer or thermocouple at rest relative to the flowing fluid that is moving with the fluid. Static temperature will increase in a diffuser and decrease in a nozzle. 

The relationships between total and static temperature and pressure are given by the following relationship ... 

Total temperature is the temperature rise in the gas if its veloeity is brought to rest in a reversible adiabatie manner. Total temperature ean be measured by the insertion of a thermocouple, RTD or thermometer in the fluid stream. The relationship between the total temperature and static temperature can be given ... 

By measuring the total and static pressure and using Equation (3-14), the Mach number can be calculated. Using Equation (3-12), the static temperature can be computed, since the total temperature can be measured. Finally, using the definition of Mach number, the velocity of the gas stream can be calculated. 

Bottom Hole Static Temperature (BHST) Bottom Hole Static Pressure (BHSP) Formation fluid ... 

The energy equation is solved in the form of a transport equation for static temperature. The temperature equation is obtained from the enthalpy equation, by taking the temperature as a dependent variable. The enthalpy equation is defined as,... 

According to Eq. (3.31), the heating power would produce a final static temperature difference, A Tf. Now the dynamics have to be taken into account. A reformulation of the differential equation leads to an expression including a certain delay ... 

COMBUSTOR INLET AIR TEMPERATURE. The effect of decreasing inlet static temperature is similar to the effect of decreasing pressure—i.e., lowered efficiency, lowered maximum temperature rise, and narrowing of the operable fuel-air range. This temperature effect is apparently due to a decreasing rate of chemical reaction with decreasing temperature and changes in evaporation rates of fuel droplets. 

Air at 300°C and 0.7 MPa pressure is expanded isentropically from a tank until the velocity is 300 m/s. Determine the static temperature, pressure, and Mach number of the air at the high-velocity condition, y = 1.4 for air. 

The temperature (F) is measured in Fahrenheit, and depth d) in feet. This static temperature is that temperature, where the CBS will be placed and will set. The actual circulating temperature is considered to be the average of the downhole temperature and the surface temperature ... 

Deep and geothermal wells are inherently hot and are well served by aluminum phosphate formulations (see Chapter 11). The dynamic temperature in these wells is 250 °F (121°C) or higher, and the static temperature is >350 °F (235°C). For these wells, berlinite-based CBPC works well with its maximum solubility at 244 °F (118°C) of alumina and phosphoric acid solution. As we have seen in Chapter 11, this reaction takes place at 302 °F (150°C) that is in the range of the temperatures of deep and geothermal wells [7]. Even at these temperatures, the solubility of aluminum oxide is too low, but addition of a small amount of microcrystalhne or amorphous aluminum hydroxide aids in increasing the soluble ions in the solution. With its large surface area, alumina provides the necessary solubility at the given downhole temperamre. 

Fig.1. Estimated static temperature-time-transformation (TTT) diagram of cocoa butter obtained with the FP900 apparatus. Open and filled symbols correspond to values 1 and 99% of the liquid-solid transformation achieved. Hatched domain corresponds to the melting range (MR) of Form II.

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