Question

The company that you intend to buy and install your personal A.C. is one of the companies that apply for a tender for installing A.C.s in your company and you are one of the decision maker committee. Should you go buy your personal A.C from this company and enjoy the discount, and why?

Answer 1

Refrigerators, air conditioners, and heat pumps operate most cost-effectively when there is a small difference between the hot and cold temperatures in the cycle.

Step-by-step explanation:

When operating refrigerators, air conditioners, and heat pumps, it is most cost-effective to have a small difference between the hot and cold temperatures in the cycle.

This is because the performance of these machines is measured by the Coefficient of Performance (COP), which is the ratio of the desired output (cooling or heating) to the required input (work or energy).

By having a small temperature difference between T₁ (the temperature at which heat is absorbed) and To (the temperature at which heat is rejected), the COP increases, resulting in more cost-effective operation.

Answer 2

Refrigerators, air conditioners, and heat pumps operate most cost-effectively with small temperature differences between T₁ and To. However, other factors such as the company's reputation, experience, warranty, and quality should also be considered.

Step-by-step explanation:

When deciding whether to buy your personal A.C. from the company that is tendering to install A.C.s in your company, there are several factors to consider. One important factor is the cost-effectiveness of the A.C. cycles, which is determined by the difference between T₁ and To temperatures. Refrigerators, air conditioners, and heat pumps operate most cost-effectively with small temperature differences between T₁ and To. This is because the temperatures of the cycle employed are crucial to the coefficient of performance (COP) of these cooling systems.

However, it's also important to consider other factors such as the company's reputation, experience in installing A.C.s, warranty and after-sales service, and the quality of their products. While enjoying a discount is attractive, it should not be the sole determining factor for making a decision.

As a decision maker in the committee, it's essential to evaluate the company's overall suitability and not solely based on the discount they offer. Choose a company based on their expertise, reputation, and ability to meet your specific needs for installing A.C.s in your company.