Explain the indicator dilution method is a technique

Assignment Help Chemistry

Reference no: EM13186010

The indicator dilution method is a technique used to determine flow rates of fluids in channels for which devices like rotameters and orifice meters cannot be used. A stream of an easily measured substance (the tracer) is injected into the channel at a known rate and the tracer concentration is measured at a point far enough downstream of the injection point for the tracer to be completely mixed with the flowing fluid. The larger the flow rate of the fluid, the lower the tracer concentration at the measurement point.

A gas stream that contains 1.50 mole% CO2 flows through a pipeline. 20.0 kg/min of CO2 is injected into the line. A sample of the gas is drawn from a point in the line 150 meters downstream of the injection point and found to contain 2.3 mole% CO2.

(a) Estimate the gas flow rate (kmol/min) upstream of the injection point.

(b) Eighteen seconds elapses from the instant the additional CO2 is first injected to the time the CO2 concentration at the measurement point begins to rise. Assuming that the tracer travels at the average velocity of the gas in the pipeline (i.e. neglecting diffusion of CO2), estimate the average velocity (m/s). If the molar gas density is 0.123 kmol/m3, what is the pipe diameter?

Reference no: EM13186010

Questions Cloud

What is the difference in euac of new and existing machine : A manufacturer is considering replacing a production machine tool. A new machine tool will cost $37,000 and have a life of 4 years with no salvage value, and will save the company $5000 per year in direct labor costs and $2000 per year in operatin..

How many houses are available in each floor plan : Write an equation that illustrates this situation. Use the same variables you used in Part a. c. Use elimination to determine how many houses are available in each floor plan. Explain how you arrived at your answer.

Define chlorate candle : 1. How large (in kg) an oxygen candle (KClO3) would be needed to supply 8 people with enough oxygen for 24 hours on a small submarine. The average person needs .84 kg of O2 per day.

How fast is the water level rising : A swimming pool is 16 feet wide and has transverse cross-sections which look like: If the pool is being filled at a rate of 1.1 cubic feet per minute, how fast is the water level rising when the depth of water is 2 feet?

Explain the indicator dilution method is a technique : The indicator dilution method is a technique used to determine flow rates of fluids in channels for which devices like rotameters and orifice meters cannot be used.

Find the autocorrelation of vt at the first lag : It is often claimed that "differencing" the regression model will reduce the degree of autocorrelation. Consider this claim by using as the model: yt = xt + ut and ut = ut1 + t where (t) is white noise with mean zero and variance 2.Show that the ..

How many 3-digit palindromes are there between 100 adn 200 : A palindrome is a number such as 131 that reads the same backward and forward. How many 3-digit palindromes are there between 100 adn 200 and what are they?

State how many grams of ethylene glycol dissolved : How many grams of ethylene glycol (automobile antifreeze, C2H6O2) dissolved in 3.55kg of water is needed to lower the freezing point

Explain the process used to obtain the interval : A company's CEO wanted to estimate the percentage of defective product per shipment. In a sample containing 400 products, he found 25 defective products.

User Account

All Pages