A window-mounted air conditioner supplies 29 m3/min of air at 15°C, 1 bar to a room. Air returns from the room to the evaporator of the unit at 22°C. The air conditioner operates at steady state on a vapor-compression refrigeration cycle with Refrigerant 22 entering the compressor at 4 bar, 10°C. Saturated liquid refrigerant at 14 bar leaves the condenser. The compressor has an isentropic efficiency of 70%, and refrigerant exits the compressor at 14 bar.
Determine the compressor power, in KW, the refrigeration capacity, in tons, and the coefficient of performance.

Respuesta :

Answer:

Please see explanation below .

Explanation:

Since you have not provided the db schema, I am providing the queries by guessing the table and column names. Feel free to reach out in case of any concerns.

1. SELECT ISBN, TITLE, PUBLICATION_YEAR FROM BOOKS WHERE AUTHOR_ID = (SELECT AUTHOR_ID FROM AUTHOR WHERE AUTHOR_NAME = 'C.J. Cherryh');

2. SELECT COUNT(*) FROM BOOKS;

3. SELECT COUNT(*) FROM ORDERS WHERE CUSTOMER_ID = 11 AND order_filled = 'No';