What operating conditions can lead to flow oscillations in a reactor core?
What operating conditions can lead to flow oscillations in a reactor core?
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What operating conditions can lead to flow oscillations in a
reactor core?
What measures can be taken to assure subcriticality? Operating the reactor at low power Three diverse...
What measures can be taken to assure subcriticality? Operating the reactor at low power Three diverse and redundant shut-down systems Introducing the control elements consisting of AgInCd or B4C into the core (SCRAM) Fast injection of boric acid into the reactor core
Write down the mass balance equations for the following conditions: a) Steady state completely-mixed flow reactor...
Write down the mass balance equations for the following conditions: a) Steady state completely-mixed flow reactor (CMFR) with non-conservative pollutant with settling. b) Steady state completely-mixed flow reactor (CMFR) with non-conservative pollutant with interfacial transfer.
A stirred tank flow reactor is operating in continuous mode (shown below), and an exothermic (heat...
A stirred tank flow reactor is operating in continuous mode
(shown below), and an exothermic (heat generating) chemical
reaction is taking place inside the reactor. The control objective
is to maintain the concentration of product at a desired value (set
point). The conversion of chemical reaction is highly dependent on
the reaction temperature. To maintain the reaction temperature at
the desired value, a cooling water jacket is used for the reactor.
The major input disturbance is fluctuation in the temperature...
5. Estimate the exit conversion and temperaute for the reactor operating under () Adiabatic conditions and (i) Non-Adiabatic conditions (T,-900K) i) Adiabatic Energy Balance equation: - Slope - I...
5. Estimate the exit conversion and temperaute for the reactor operating under () Adiabatic conditions and (i) Non-Adiabatic conditions (T,-900K) i) Adiabatic Energy Balance equation: - Slope - Intercept i) Non-Adiabatic Energy Balance Equation . Slope - Intercept
5. Estimate the exit conversion and temperaute for the reactor operating under () Adiabatic conditions and (i) Non-Adiabatic conditions (T,-900K) i) Adiabatic Energy Balance equation: - Slope - Intercept i) Non-Adiabatic Energy Balance Equation . Slope - Intercept
2. The following reactions are carried out in the liquid phase in a plug flow reactor...
2. The following reactions are carried out in the liquid phase in a plug flow reactor operating isothermally at steady state. kI A2B and BD. k2 The specific reaction constants are given as k 0.1 sec and k2 0.05 sec. The volumetric flow rate to the reactor is F 5 m/nia and the inlet concentrations of A, B and D are: C 2 kmol/m', CoO kmol/m', and Coo0 kmo/m a). What is the value of Ca at the exit of...
1. Calculate the volume of a completely mixed reactor needed (in m3)lto treat a flow rate of 3 MG...
problem 1 and 2!
please and thanks!
1. Calculate the volume of a completely mixed reactor needed (in m3)lto treat a flow rate of 3 MGD wastewater. The wastewater contains 220 mg/L of BOD with a rate coefficient of 0.4/d. The effluent target is 20 mg/L. Assume steady state. 2. For the same conditions, what would the size of a plug flow reactor be (in m2)?
1. Calculate the volume of a completely mixed reactor needed (in m3)lto treat a...
8. A fresh spent nuclear fuel was removed from a reactor core and placed into a...
8. A fresh spent nuclear fuel was removed from a reactor core and placed into a spent fuel pool. One of the activation products in the nuclear fuel was Cobalt (Co-60). After 8 year of storage in the pools, the activity of the Co-60 was reduce to 0.5x105 Ci. Please determines: i)The initial activity of the Co-60 at the day when the spent nuclear fuel was stored in the pool. [Given that half-life, t1/2 of the Co-60 is 5.26 yr]...
The core of a reactor rated at 3200 MWt full power contains an initial fuel loading...
The core of a reactor rated at 3200 MWt full power contains an initial fuel loading of 80 metric tons. The reactor operates 540 calendar days between refuelings. If the reactor power as a fraction of full power varies with time according to the function sin(πt/T), where t is the elapsed time in days counting from the cycle startup, and T = 540 days, what is (a) the capacity factor for the cycle and (b) the cycle burnup in MWd/kg?
[TOTAL 30 MARKS! A plug flow reactor (C le and reaction is reversible and represented by...
[TOTAL 30 MARKS! A plug flow reactor (C le and reaction is reversible and represented by (0,04 minT)CA - (0,01 min- 2.2. 2.3, Find the equilibrium conversion Find the actual conversion of A in the reactor We wish to achieve 97.5% of the equilibrium n by adding a CSTR in series with the plug flow reactor. What volume must the CSTR be in order to achieve this? TOTAL 20 MARKS Pure gaseous A at about 3 vanous Row rates. There...
Low density polyethylene (LDPE) is produced in a long tubular reactor under harsh conditions (T =...
Low density polyethylene (LDPE) is produced in a long tubular reactor under harsh conditions (T = 200 �C and 1800 bar). Ethylene is pressurized, mixed with catalyst, and pumped into the reactor where (LDPE) is produced. The reactor itself is 0.5 m in diameter and 1800 m in length. a)What phase is the ethylene? How can you tell?
A stirred tank flow reactor is operating in continuous mode
(shown below), and an exothermic (heat generating) chemical
reaction is taking place inside the reactor. The control objective
is to maintain the concentration of product at a desired value (set
point). The conversion of chemical reaction is highly dependent on
the reaction temperature. To maintain the reaction temperature at
the desired value, a cooling water jacket is used for the reactor.
The major input disturbance is fluctuation in the temperature...
5. Estimate the exit conversion and temperaute for the reactor operating under () Adiabatic conditions and (i) Non-Adiabatic conditions (T,-900K) i) Adiabatic Energy Balance equation: - Slope - Intercept i) Non-Adiabatic Energy Balance Equation . Slope - Intercept
5. Estimate the exit conversion and temperaute for the reactor operating under () Adiabatic conditions and (i) Non-Adiabatic conditions (T,-900K) i) Adiabatic Energy Balance equation: - Slope - Intercept i) Non-Adiabatic Energy Balance Equation . Slope - Intercept
2. The following reactions are carried out in the liquid phase in a plug flow reactor operating isothermally at steady state. kI A2B and BD. k2 The specific reaction constants are given as k 0.1 sec and k2 0.05 sec. The volumetric flow rate to the reactor is F 5 m/nia and the inlet concentrations of A, B and D are: C 2 kmol/m', CoO kmol/m', and Coo0 kmo/m a). What is the value of Ca at the exit of...
problem 1 and 2!
please and thanks!
1. Calculate the volume of a completely mixed reactor needed (in m3)lto treat a flow rate of 3 MGD wastewater. The wastewater contains 220 mg/L of BOD with a rate coefficient of 0.4/d. The effluent target is 20 mg/L. Assume steady state. 2. For the same conditions, what would the size of a plug flow reactor be (in m2)?
1. Calculate the volume of a completely mixed reactor needed (in m3)lto treat a...
8. A fresh spent nuclear fuel was removed from a reactor core and placed into a spent fuel pool. One of the activation products in the nuclear fuel was Cobalt (Co-60). After 8 year of storage in the pools, the activity of the Co-60 was reduce to 0.5x105 Ci. Please determines: i)The initial activity of the Co-60 at the day when the spent nuclear fuel was stored in the pool. [Given that half-life, t1/2 of the Co-60 is 5.26 yr]...
[TOTAL 30 MARKS! A plug flow reactor (C le and reaction is reversible and represented by (0,04 minT)CA - (0,01 min- 2.2. 2.3, Find the equilibrium conversion Find the actual conversion of A in the reactor We wish to achieve 97.5% of the equilibrium n by adding a CSTR in series with the plug flow reactor. What volume must the CSTR be in order to achieve this? TOTAL 20 MARKS Pure gaseous A at about 3 vanous Row rates. There...
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