1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
NemiM [27]
3 years ago
6

To increase the thermal efficiency of a reversible power cycle operating between thermal reservoirs at TH and Tc, would you incr

ease TH while keeping To constant, or decrease To while keeping TH constant? Are there any natural limits on the increase in thermal efficiency that might be achieved by such means? Consider how η responds to a change in temperature-if either temperature is changed by some r, which will have a greater effect? Hint: Check the derivative of η with regard to TH and Tc separately
Engineering
1 answer:
alukav5142 [94]3 years ago
7 0

<u></u>\ T_{c} has greater effect.

<u>Explanation</u>:

\eta_{\max }=1-\frac{T_{c}}{T_{A}}

T_{c}\\ = Temperature of cold reservoir

T_{H} = Temperature of hot reservoir

when T_{c} is decreased by 't',

$\eta_{\text {incre }}$ = 1-\frac{\left(\tau_{c}-t\right)}{T_{H}}

=n \ + \frac{t}{T_{n}}      -(i)

when {T_{H}} is increased by 'T'

\eta_{i n c}=\frac{n+\frac{t}{T_{H}}}{\left(1+\frac{k}{T_{H}}\right)}-(ii)

\eta_{\text {incre }} \ T_{c}>\eta_{\text {incre }} T_{\text {H }}

You might be interested in
What’s the symbol for elevation
nataly862011 [7]

Answer:

See image

Explanation:

textbook images

4 0
3 years ago
Mr. Blue lives in a blue house, Mrs. Pink lives in a pink house and Mr. Red lives in a red house. Who lives in the White House?
Cerrena [4.2K]

Answer:

the president and mr.white my history teacher lol

6 0
3 years ago
Technician A says it will save you money if you get a high interest rate from a bank on the loan. Technician B says it is always
zubka84 [21]
Is there a other option
5 0
3 years ago
Tech A says that a cylinder leakage test is performed on a cylinder with low compression to determine the severity of the leak a
Karolina [17]
Tech A djjdjdndnndndbdbx
4 0
3 years ago
The fumes from<br> are extremely hazardous<br> Cement<br> Does cement have fumes
IRINA_888 [86]

Answer:

Cement is largely made up of calcium oxide. Cement can harden in the gastrointestinal tract and cause obstruction. Inhaling cement dust can cause coughing, wheezing, and difficulty breathing. The best prevention is to avoid or limit contact with cement.

Explanation:

8 0
3 years ago
Other questions:
  • Consider two electrochemical reaqctions. Reaction A results in the transfer of 2 mol of electrons per mole of reactant and gener
    14·2 answers
  • Match the word with the definition:
    6·2 answers
  • A large tank is filled to capacity with 500 gallons of pure water. Brine containing 2 pounds of salt per gallon is pumped into t
    15·1 answer
  • Write a naive implementation (i.e. non-vectorized) of matrix multiplication, and then write an efficient implementation that uti
    5·1 answer
  • 1. ELECTRICAL SHOCK
    13·1 answer
  • A seamless pipe 800mm diameter contains a fluid under a pressure of 2N/mm2. If the permissible tensile stress is 100N/mm2, find
    11·1 answer
  • You must yield the right-of-way to all of the following EXCEPT:
    8·1 answer
  • Corrections for curvature and refraction (c r) are applied to: ____________.
    8·1 answer
  • Which type of engineer often works with radar, communication, and navigation systems? electrical engineer chemical engineer indu
    7·1 answer
  • An agricultural manager requires
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!