Reference no: EM131285831
The report's problem as follows:
A vapor-compression refrigeration system operating continuously is being considered to provide a minimum of 80 tons of refrigeration for an industrial refrigerator maintaining a space at 28C. The surroundings to which the system rejects energy by heat transfer reach a maximum temperature of 408C. For effective heat transfer, the system requires a temperature difference of at least 208C between the condensing refrigerant and surroundings and between the vaporizing refrigerant and refrigerated space. The project manager wishes to install a system that minimizes the annual cost for electricity (monthly electricity cost is fixed at 5.692 cents for the first 250 kW h and 6.006 cents for any usage above 250 kW h). You are asked to evaluate two alternative designs: a standard vapor-compression refrigeration cycle and a vapor-compression refrigeration cycle that employs a power-recovery turbine in lieu of an expansion valve. For each alternative, consider three refrigerants: ammonia, Refrigerant 22, and Refrigerant 134a. Based on electricity cost, recommend the better choice between the two alternatives and a suitable refrigerant. Other than electricity cost, what additional factors should the manager consider in making a final selection? Prepare a written report including results, conclusions, and recommendations.
Write a report about the problem attached to this assignment.
The requirements of the assignment:
1- It has to be written by an someone who lives or is from US. because I need it written in the American academic standards.
2- it has to be 4 pages
3- You have to use a minimum of 13 different references.
4- Use MLA citation format.
5- the report has to be formal, grammar mistakes and other written mistakes must be avoided.
7- Please don't forget to but the in-text citations as you borrow things from other resources.
8- The assignment is taken from the textbook:
Fundamentals of Engineering Thermodynamics 8th Ed - Michael J. Moran, Howard N. Shapiro, Daisie D. Boettner, Margaret B. Bailey page 652
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