Answer:
Explanation:
Detailed explanation given in the attached document.
Answer:
Net discharge per hour will be 3.5325 ![m^3/hr](https://tex.z-dn.net/?f=m%5E3%2Fhr)
Explanation:
We have given internal diameter d = 25 mm
Time = 1 hour = 3600 sec
So radius ![r=\frac{d}{2}=\frac{25}{2}=12.5mm=12.5\times 10^{-3}m](https://tex.z-dn.net/?f=r%3D%5Cfrac%7Bd%7D%7B2%7D%3D%5Cfrac%7B25%7D%7B2%7D%3D12.5mm%3D12.5%5Ctimes%2010%5E%7B-3%7Dm)
We know that area is given by
![A=\pi r^2=3.14\times (12.5\times 10^{-3})^2=490.625\times 10^{-6}m^2](https://tex.z-dn.net/?f=A%3D%5Cpi%20r%5E2%3D3.14%5Ctimes%20%2812.5%5Ctimes%2010%5E%7B-3%7D%29%5E2%3D490.625%5Ctimes%2010%5E%7B-6%7Dm%5E2)
We know that discharge is given by
, here A is area and V is velocity
So ![Q=AV=490.625\times 10^{-6}\times 2=981.25\times 10^{-6}m^3/sec](https://tex.z-dn.net/?f=Q%3DAV%3D490.625%5Ctimes%2010%5E%7B-6%7D%5Ctimes%202%3D981.25%5Ctimes%2010%5E%7B-6%7Dm%5E3%2Fsec)
So net discharge in 1 hour = ![981.25\times 10^{-6}m^3/sec\times 3600=3.5325m^3/hour](https://tex.z-dn.net/?f=981.25%5Ctimes%2010%5E%7B-6%7Dm%5E3%2Fsec%5Ctimes%203600%3D3.5325m%5E3%2Fhour)
Answer:
Refrigerant R-134a is to be cooled by waterin a condenser.The refrigerant enters thecondenser with a mass flow rate of 6 kg/minat 1 MPa and 70 C and exits at 35 C. The cool-ing water enters at 300 kPa and 15 C andleaves at 25 C. Neglecting pressure drops,determine a) the required mass flow rate ofthe cooling water, and b) the heat transferrate from the refrigerant to the water.SolutionFirst consider the condenser as the control volume. The process is steady,adiabatic and no work is done. Thus over any time intervalΔt,ΔEΔt=0and thusXin˙E=Xout˙Ewhere˙E=˙m h+12V2+gz650:351 Thermodynamics·Prof. Doyle Knight37
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Answer:
Clay bricks are manufactured by mining and clay moulded blocks. There are 20,000 brick klins in Pakistan.
Explanation:
In Pakistan, the clay bricks are manufactured by mining and baking the clay moulded blocks in brick kilns. According to an estimate, the baking process emits about 1.4 pounds of carbon per brick made, but in Pakistan, because the systems are outdated, brick kilns are used, which is producing more than the average amount of the pollution.
There are about 20,000 brick kilns in Pakistan. The traditional brick production in Pakistan is consists of hand-made bricks which are first baked in Fixed Chimney Bull's Trench Kilns (FCBTK), this is the most widely used brick firing technology in South Asia.
Answer:
Milling machines are a type of machinery for removing material from a workpiece using rotary cutters. These machines can drill, bore, and cut an array of materials.
Explanation:
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