Question

1. What are the main expansion processes found in refrigeration systems? What are the advantages and...

1. What are the main expansion processes found in refrigeration systems? What are the advantages and disadvantages of each expansion method?

2. If we have cooled the compressor with a fan, do you think the overall efficiency would have increased or decreased? Not taking into account the power consumption of the fan for computing the efficiency.

Homework Answers

Answer #1

1) There are 2 types of expansion processes Internally equilized and externally equilized

A) Internally equalized valves can be used on single circuit evaporator coils having low pressure drop.

   Internally equalized TXV cannot be replaced with an Externally equalized TXV.

B) The Externally equalized TXVs can be used on all applications.

Externally equalized valves must be used on multi-circuited evaporators with refrigerant distributors only.

2) If the compressor is cooled the work input to the compressor decreases so the overall efficiency will increase.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
HASBRO DEVELOPS A GLOBAL SYSTEMS STRATEGY If you’ve ever played in a sandbox with a Tonka...
HASBRO DEVELOPS A GLOBAL SYSTEMS STRATEGY If you’ve ever played in a sandbox with a Tonka dump truck, accessorized a My Little Pony, manipulated a Transformer, or engaged in mock combat with a G.I. Joe, you have experienced a piece of the Hasbro Inc. juggernaut. Begun by brothers Henry, Hilal, and Herman Hassenfeld in 1923 as a pencil box and school supplies company, Hasbro transitioned to toys in the 1940s. Acquisitions, including Milton Bradley, Tonka, and Wizards of the Coast...
1. Is NASCARs main goal to maximize profits? If not, what is their major goal? Is...
1. Is NASCARs main goal to maximize profits? If not, what is their major goal? Is there a tradeoff involved here? 2. Is the motivation for the actions described in the NYT article (safety changes, blackbox data collection) connected to their goal? Explain. 3. If people tune in to see crashes (Nascar fans love crashes the way hockey fans love fights; when you watch the Speed Channel's edited replays of Nascar races, the plot is always the same: green flag,...
what is the issue in Emaar case study ? (10marks) Emaar Properties specializes in creating value-added,...
what is the issue in Emaar case study ? (10marks) Emaar Properties specializes in creating value-added, master-planned communities that meet the full spectrum of lifestyle needs. Highlights include Downtown Dubai, the 500-acre mega-project including Burj Khalifa – the world’s tallest building, and The Dubai Mall—the world’s largest shopping and entertainment destination. Emaar is extending its expertise in developing master-planned communities internationally, and has established operations in the United Arab Emirates, Saudi Arabia, Syria, Jordan, Lebanon, Egypt, Morocco, India, Pakistan, Turkey,...
1) Which of the following is NOT a value-creating activity associated with the differentiation strategy? a....
1) Which of the following is NOT a value-creating activity associated with the differentiation strategy? a. intensive training programs to improve employee efficiency b. strong capability in new product development. c. rapid and timely deliveries to customers. d. procurement systems focused on finding the highest quality raw materials. 2) A certain marble quarry provides a unique type of marble that is richly colored and strikingly veined. It has been used for churches and public buildings throughout the world. The architect...
Assignment: What are the main arguments in the article? Please answer within 5 hours. It is...
Assignment: What are the main arguments in the article? Please answer within 5 hours. It is extremely urgent!!!!!!!!!!!!!!!!!!!!!!!! --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- BIOETHICS. Bioethics as a field is relatively new, emerging only in the late 1960s, though many of the questions it addresses are as old as medicine itself. When Hippocrates wrote his now famous dictum Primum non nocere (First, do no harm), he was grappling with one of the core issues still facing human medicine, namely, the role and duty of the...
Financial Reporting and Analysis Assignment #1 Q1. What is IFRS? ? What is the IASB? ?...
Financial Reporting and Analysis Assignment #1 Q1. What is IFRS? ? What is the IASB? ? How widespread is the adoption of IFRS around the world? ? What is the possibility of the Securities and Exchange Commission substituting IFRS for GAAP? ? What are the advantages of converting to IFRS? ? What could be the disadvantages of converting to IFRS? ? What is the difference between convergence and adoption? ? When comparing IFRS and GAAP, what are some overall key...
Department of Management Information Systems, Operations Management and Decision Sciences, University of Dayton, Dayton, Ohio 45419,...
Department of Management Information Systems, Operations Management and Decision Sciences, University of Dayton, Dayton, Ohio 45419, [email protected] Hub Group, a North American intermodal freight rail transportation company, developed an integrated produc- tion decision support system to improve its yield management and container allocation. The system combines a suite of analytical tools, including forecasting, error distribution analysis, expected value-based heuristics, and optimization tools to improve the decision making of Hub's frontline employees. It is important to note that the production decision...
Team 5 answer the questions What are 4 key things you learned about the topic from...
Team 5 answer the questions What are 4 key things you learned about the topic from reading their paper? How does the topic relate to you and your current or past job? Critique the paper in terms of the organization and quality. Incentive Systems             In this paper, we will focus primarily on financial rewards that companies use to attract, retain and motivate the brightest and most talented candidates in the labor market. By providing a reward system that...
1. The failure of the new supply chain system affected Nike adversely. What were the reasons...
1. The failure of the new supply chain system affected Nike adversely. What were the reasons for the failure and how did the breakdown harm Nike? 2. What are the important elements to be kept in mind while implementing a new system in an organization? What is the importance of a good working relationship between partners and the sharing of responsibility in implementing critical projects? What mistakes did Nike and i2 make? 3. comment on the lessons learned and the...
1. In which phase of the business cycle is the U.S. economy currently in? ________________. How...
1. In which phase of the business cycle is the U.S. economy currently in? ________________. How many months has the U.S. economy been in this stage of the business cycle? ___________ months 2. How long has the current expansion/recovery lasted to date? _________________ How does this compare to the average length of U.S. recessions since 1854? ______________________________. 3. What do the last four recoveries/expansions (that is, the current recovery/expansion and the previous three recovery/expansions), suggest about a new trend in...