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Operating temperatures: • Ambient temperature: 25°C. • Desired temperature inside the installation: 5°C. Power inputs and outputs: • Energy consumed by the system: 15 kW. • Energy dissipated to the environment: 5 kW. Specifications of the coolant used: • Refrigerant: R-134a. • Evaporation temperature: -10°C. • Condensation temperature: 40°C. Design based on Carnot's heat engine: • Hot source temperature: 40°C. • Cold source temperature: -10°C. • Theoretical Carnot efficiency: 37.5%. 1. Using the data provided, calculate the entropy change of the system during a complete refrigeration cycle. 2. based on the theoretical design of the heat engine Carnot, propose changes that could bring the real efficiency of the system closer to Carnot's theoretical efficiency. This may include adjustments to hot and cold source temperatures or system operating cycle.

Operating temperatures: • Ambient temperature: 25°C. • Desired temperature inside the installation: 5°C. Power inputs and outputs: • Energy consumed by the system: 15 kW. • Energy dissipated to the environment: 5 kW. Specifications of the coolant used: • Refrigerant: R-134a. • Evaporation temperature: -10°C. • Condensation temperature: 40°C. Design based on Carnot's heat engine: • Hot source temperature: 40°C. • Cold source temperature: -10°C. • Theoretical Carnot efficiency: 37.5%. 1. Using the data provided, calculate the entropy change of the system during a complete refrigeration cycle. 2. based on the theoretical design of the heat engine Carnot, propose changes that could bring the real efficiency of the system closer to Carnot's theoretical efficiency. This may include adjustments to hot and cold source temperatures or system operating cycle.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Operating temperatures: • Ambient temperature: 25°C. • Desired temperature inside the installation: 5°C. Power inputs and outputs: • Energy consumed by the system: 15 kW. • Energy dissipated to the environment: 5 kW. Specifications of the coolant used: • Refrigerant: R-134a. • Evaporation temperature: -10°C. • Condensation temperature: 40°C. Design based on Carnot's heat engine: • Hot source temperature: 40°C. • Cold source temperature: -10°C. • Theoretical Carnot efficiency: 37.5%. 1. Using the data provided, calculate the entropy change of the system during a complete refrigeration cycle. 2. based on the theoretical design of the heat engine Carnot, propose changes that could bring the real efficiency of the system closer to Carnot's theoretical efficiency. This may include adjustments to hot and cold source temperatures or system operating cycle.
Transcribed Image Text:Operating temperatures: • Ambient temperature: 25°C. • Desired temperature inside the installation: 5°C. Power inputs and outputs: • Energy consumed by the system: 15 kW. • Energy dissipated to the environment: 5 kW. Specifications of the coolant used: • Refrigerant: R-134a. • Evaporation temperature: -10°C. • Condensation temperature: 40°C. Design based on Carnot's heat engine: • Hot source temperature: 40°C. • Cold source temperature: -10°C. • Theoretical Carnot efficiency: 37.5%. 1. Using the data provided, calculate the entropy change of the system during a complete refrigeration cycle. 2. based on the theoretical design of the heat engine Carnot, propose changes that could bring the real efficiency of the system closer to Carnot's theoretical efficiency. This may include adjustments to hot and cold source temperatures or system operating cycle.
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