Answer:
![Hr=4.2*10^7\ btu/hr](https://tex.z-dn.net/?f=Hr%3D4.2%2A10%5E7%5C%20btu%2Fhr)
Explanation:
From the question we are told that:
Water flow Rate ![R=4.5slug/s=144.78ib/sec](https://tex.z-dn.net/?f=R%3D4.5slug%2Fs%3D144.78ib%2Fsec)
Initial Temperature ![T_1=60 \textdegree F](https://tex.z-dn.net/?f=T_1%3D60%20%5Ctextdegree%20F)
Final Temperature ![T_2=140 \textdegree F](https://tex.z-dn.net/?f=T_2%3D140%20%5Ctextdegree%20F)
Let
Specific heat of water ![\gamma= 1](https://tex.z-dn.net/?f=%5Cgamma%3D%201)
And
![\triangle T= 140-60](https://tex.z-dn.net/?f=%5Ctriangle%20T%3D%20140-60)
![\triangle T= 80\ Deg.F](https://tex.z-dn.net/?f=%5Ctriangle%20T%3D%2080%5C%20Deg.F)
Generally the equation for Heat transfer rate of water
is mathematically given by
Heat transfer rate to water= mass flow rate* specific heat* change in temperature
![H_r=R* \gamma*\triangle T](https://tex.z-dn.net/?f=H_r%3DR%2A%20%5Cgamma%2A%5Ctriangle%20T)
![H_r=144.78*80*1](https://tex.z-dn.net/?f=H_r%3D144.78%2A80%2A1)
![H_r=11582.4\ btu/sec](https://tex.z-dn.net/?f=H_r%3D11582.4%5C%20btu%2Fsec)
Therefore
![H_r=11582.4\ btu/sec*3600](https://tex.z-dn.net/?f=H_r%3D11582.4%5C%20btu%2Fsec%2A3600)
![Hr=4.2*10^7\ btu/hr](https://tex.z-dn.net/?f=Hr%3D4.2%2A10%5E7%5C%20%20btu%2Fhr)
Answer: I'm a boy, but I'm not toxic or fake
Explanation:
Answer:
b) False
Explanation:
in trapezoidal rule the error is proportional to
and the order of accuracy is proportional to
.
Trapezoidal rule is numerical integration method .Trapezoidal rule is used to find the area of curves.In trapezoidal rule we finds the approximate value of integration.But the real value of integration will not differ to much from the value which finds by using trapezoidal rule.
Answer:
Feedforward basically configured and used mainly to avoid errors in a control system entering or disrupting a control loop
Explanation:
Feedforward basically configured and used mainly to avoid errors in a control system entering or disrupting a control loop. Although Feedforward control seems to be a very attractive idea, it imposes a high responsibility on both the system developer and the operator to examine and consider mathematically the effect of disruptions on the process concerned.
example of feedforward is
Shower
which consist of following control points
Hear toilet flush (measurement)
Customize water to compensate
feedback refers to that point when water turns hot before the configuration changes
Answer:
12.5%
Explanation:
Compaction ratio= Volume before reduction/volume after reduction
Compaction ratio= 8/1
% reduction in volume= Volume after reduction/Volume before reduction× 100= 1/compaction ratio × 100
% reduction in volume= 1/(8/1) × 100
=12.5