Baffle Heat Exchangers in Shell and Tube Design

What is the primary function of baffles in a shell and tube heat exchanger?

To support and fix tubes in a specific position (correct)
To decrease the velocity of the shell-side flow
To reduce the heat transfer
To increase the turbulence in the tube side fluid

What happens to the shell-side flow in a baffle heat exchanger?

It flows in a straight line across the tube field
It flows back and forth across the tube field (correct)
It flows in a circular motion around the tubes
It flows out of the heat exchanger

What is the result of increased turbulence in the shell-side fluid?

Reduced heat transfer
Increased vibration of the tubes
Increased heat transfer (correct)
No effect on heat transfer

Why are baffles essential in shell and tube heat exchangers?

They support the tubes and improve heat transfer (B) Signup and view all the answers

What problem do baffles prevent in shell and tube heat exchangers?

Tube vibration (B) Signup and view all the answers

What is the primary function of smart sensors in IoT devices?

To collect data from devices and send it to the gateway (A) Signup and view all the answers

What is the purpose of cloud storage in IoT devices?

To store data collected from devices (C) Signup and view all the answers

What is the primary focus of a well-designed user interface in IoT devices?

To require the least amount of effort from users (B) Signup and view all the answers

What is the role of IoT clouds in managing data?

To manage data efficiently, including collection, processing, management, and archiving (A) Signup and view all the answers

What is the benefit of IoT clouds for industries and services?

To allow remote access to data for critical decision-making (D) Signup and view all the answers

What occurs after data is received in the cloud in IoT devices?

The data is processed (D) Signup and view all the answers

What is the primary goal of the Internet of Things (IoT)?

To create self-reporting devices that can communicate with each other in real time. (D) Signup and view all the answers

What type of IoT device can help monitor and share a patient's vital signs?

Personal medical devices like pacemakers (A) Signup and view all the answers

What enables smart home devices to assist with daily tasks?

Wireless connections (B) Signup and view all the answers

What is the purpose of sensors in autonomous vehicles?

All of the above (D) Signup and view all the answers

What type of IoT device can receive notifications when someone is at the door?

Security camera (A) Signup and view all the answers

What do wearable IoT technologies like Fitbits and Apple Watches use to track locations?

GPS locations (B) Signup and view all the answers

What is the primary purpose of an IoT platform?

To manage device connectivity (B) Signup and view all the answers

What type of sensors detect heat and convert temperature changes into data?

Temperature sensors (C) Signup and view all the answers

What is the primary function of unique identifiers in IoT networks?

To provide a unique address for each device (B) Signup and view all the answers

What is the primary role of a control panel in IoT systems?

To manage device connectivity and ensure accessibility (B) Signup and view all the answers

What type of network protocols enable IoT devices to connect to cloud platforms?

Internet connectivity protocols (A) Signup and view all the answers

What is the primary purpose of IoT sensors?

To convert real-world variables into data (C) Signup and view all the answers