Thermodynamics Smith Van Ness Problem 5.3

Thermodynamics 7th Edition, International Edition Smith Van Ness and Abbott
Problem 5.3                                                         
The following heat engines produce power of 95,000 kW. Determine in each case the rates at which heat is absorbed from the hot reservoir and discarded to the cold reservoir.
(a)   A Carnot engine operates between heat reservoirs at 750 K and 300 K.
(b) A practical engine operates between the same heat reservoirs but with a thermal efficiency η = 0.35.





If you find the mistake or have question you can use comment section or email to kregardy@gmail.com
Thank you

Komentar

Posting Komentar

Postingan populer dari blog ini

Mass and Energy Balances P8.30 G.V. Reklaitis

Gambar
Introduction To Material and Energy Balances G.V. Reklaitis Problem 8.30 A synthesis gas is upgraded to a higher methane content in the recycle system shown in figure P8.30. The feed gas contains a small amount of methane and analyzes 22% CO, 13% CO 2 , and 65% H 2 (mol %) on a methane-free basis . The product stream (stream 6) analyzes (all mol %) CO 5%, H 2 9%, CH 4 50%, CO 2 27% , and H 2 O 9%. Both feed and product are gases at 200˚F. In the reactor the two reactions    CO + 3H 2 → CH 4 + H 2 O CO + H 2 O → CO 2 + H 2 take place. The reactor effluent is cooled to 500˚F in exchanger 1 and then is further cooled in exchanger 2. Part of the effluent is split off as product. The remainder is sent to a separator in which the stream is cooled to 90˚F and 95% of the H 2 O is separated as liquid. The remaining gas stream is reheated in exchanger 2, mixed with the fresh feed, and returned to the reactor. Assume that mixer, the splitter, exchanger 2, and the reactor ope...
Baca selengkapnya

Transport Process and Unit Operations C.J. Geankoplis

Gambar
Transport Process and Unit Operations 3rd Edition Christi J. Geankoplis 3.1-5.   Surface Area In Packed Bed             A packed bed is composed of cubes 0.020 m on a side and the bulk density of the packed bed is 980 kg/m 3 . The density of the solid cubes is 1500 kg/m 3 .            (a)      Calculate ε , effective diameter D p , and a .           (b)      Repeat for the same conditions but for cylinders having a diameter of D = 0.02 m and a length h = 1.5 D . Solving: 3.1-6.   Derivation for Number of Particles in a Bed of Cylinders             For a packed bed containing cylinders where the diameter D of the cylinders is equal to the length h , do as follows for a bed having a void fraction ε .       ...
Baca selengkapnya