what are the differences of all these cooling load calculation
methods? What are the full name...
what are the differences of all these cooling load calculation
methods? What are the full name of these methods and the strength
and limitation of these approaches?
A cooling plant adopted a two-stage cascade refrigeration system
to meet the required cooling load. In both upper and lower cycles,
the refrigerant leaves condenser as saturated liquid and enters
compressor as saturated vapor. The isentropic efficiency of the
upper cycle compressor is 80 %, while the lower cycle compressor is
70% efficient. The pressure limits of the upper and lower cycles
are 1 MPa and 0.2 MPa with refrigerant-134a, respectively. Heat
rejection from the lower cycle to the upper...
A cooling plant adopted a two-stage cascade refrigeration system
to meet the required cooling load. In both upper and lower cycles,
the refrigerant leaves condenser as saturated liquid and enters
compressor as saturated vapor. The isentropic efficiency of the
upper cycle compressor is 80 %, while the lower cycle compressor is
70% efficient. The pressure limits of the upper and lower cycles
are 1 MPa and 0.2 MPa with refrigerant-134a, respectively. Heat
rejection from the lower cycle to the upper...
What is peak-load pricing? What are the differences between
peak-load pricing and Ramsey pricing?
Is it true that peak demanders pay all capacity costs and
off-peak demanders pay none but the marginal costs? Explain.
An Uncontrolled Full-Wave full-bridge rectifier with
RL-Source load and Discontinuous load
current is to be designed based on the following assumptions and
constraints. Design the circuit
and calculate the parameters of the rectifier based on the
following assumptions and constraints.
Simulate the designed rectifier in PsPice and compare the simulated
and the calculated results.
a) The AC source is 220 V rms at 50 Hz. Vdc= 65 V, power absorbed
by the resistor is 360
W.
b) The AC source...
What is peak-load pricing? What are the differences between
peak-load pricing and Ramsey pricing?
ii) Is it true that peak demanders pay all capacity costs and
off-peak demanders pay none but the marginal costs? Explain.
iii) What is the traditional rate of return
regulation? What are the decision variables for a regulator under
this regulatory scheme? What does it achieve? Explain.
2. (7.5 points) What is
Averch-Johnson effect? What does it show? Draw a figure and
explain.
Please show all work, calculation, or explanation
to receive full credit and circle the correct
answer.
Use the following Information to Answer Problems 1
and 2
Bradford Services Inc. (BSI) is considering a project
that has a cost of $10 million and an expected life of 3 years.
There is a 30 percent probability of good conditions, in which case
the project will provide a cash flow of $9 million at the end of
each year for 3 years. There...
A summer time temperature analysis of a relative zone of the
building, estimating the cooling load and a comparative study for a
different type and a different percentage size of glazing
Show full calculation of HCO3- calculation by balance of anion
charges and cation charges.
The anion concnetration (mg/L) that were given was:
Fluoride= 1.286
Chloride=43.014
Nitrate=12.016
Phosphate=0.513
Sulfate=113.326
And the cation concentration (mg/L) that were given was:
Sodium=47.788
Potassium=5.741
Calcium=56.796
Magnesium=17.019
List customer id, customer full name (Last name, full name,
state) for those customers that have ordered more than once.
List customers (order id, customer id, and customer last name)
that had more than 2
-- products in their order. Order your result based on customer id
followed by order id
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