Answer:
a) The mechanical force is -226.2 N
b) Using the coenergy the mechanical force is -226.2 N
Explanation:
a) Energy of the system:
If i = 2A and g = 10 cm
b) Using the coenergy of the system:
When fermentation units are operated with high aeration rates, significant amounts of water can be evaporated into the air passi
ng through the fermentation broth. Since fermentation can be adversely affected if water loss is significant, the air is humidified before being fed to the fermenter. Sterilized ambient air is combined with steam to form a saturated air–water mixture at 1 atm and 90°C. The mixture is cooled to the temperature of the fermenter (35°C), condensing some of the water, and the saturated air is fed to the bottom of the fermenter. For an air flow rate to the fermenter of 10 L/min at 35°C and 1 atm, estimate the rate at which steam must be added to the sterilized air and the rate (kg/min) at which condensate is collected upon cooling the air–steam mixture.
1 answer:
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Answer:
Determine the added thrust required during water scooping, as a function of aircraft speed, for a reasonable range of speeds.= 132.26∪
Explanation:
check attached files for explanation
Answer:
a
The rate of work developed is
b
The rate of entropy produced within the turbine is
Explanation:
From the question we are told
The rate at which heat is transferred is
the negative sign because the heat is transferred from the turbine
The specific heat capacity of air is
The inlet temperature is
The outlet temperature is
The pressure at the inlet of the turbine is
The pressure at the exist of the turbine is
The temperature at outer surface is
The individual gas constant of air R with a constant value
The general equation for the turbine operating at steady state is \
h is the enthalpy of the turbine and it is mathematically represented as
The above equation becomes
Where is the heat transfer from the turbine
is the work output from the turbine
is the mass flow rate of air
is the rate of work developed
Substituting values
The general balance equation for an entropy rate is represented mathematically as
=>
generally
substituting for
Where is the rate of entropy produced within the turbine
substituting values