Heat Transfer

Heat Transfer

Question 1. Enumerate the heat gain mechanism occurring in the body when the body is exposed to cold environment.
Answer:

• Heat production is increased in the body by the following mechanism when the body is exposed to cold environment.
  1. Shivering
  2. Increased metabolic reactions.
  3. Increased sympathetic activity.
  4. Increased adrenaline secretion.
  5. Radiation.

“Understanding heat transfer through FAQs: Conduction, convection, and radiation explained”

Question 2. Heat loss mechanism.
Answer:

• Heat is loss from the body by.
  • Conduction
  • Convection
  • Radiation
  • Evaporation
  • Panting in animals.

“Factors influencing success with heat transfer studies: Q&A”

Question 3. What is normal body temperature? Enumerate thermal regulation organs of the body.
Answer:

Normal body temperature:

• The normal body temperature in human is 37°C when measured by placing the clinical thermometer in the mouth.
• Thermal regulating organs of the body:

1. Hypothalamus.

• It contains heat gain and heat loss center.

2. Skin.

• It regulates body temperature by vasoconstriction or vasodilation of blood vessels.

3. Hair.

• Erection of the hairs over skin causes increase in thickness of the trapped air.
• Thus, heat transfer across the layer is reduced and heat loss is decreased.

“Importance of studying heat transfer for engineering students: Questions explained”

Question 4. Taste buds
Answer:

• Taste buds are located in the walls of the papillae
• They are oval clusters of cells in the epithelial layer with a small pore opening on the surface.
• This allows substances to reach the interior of the taste buds

Cells Within Taste Buds:

• Cells within the taste buds are of two types
  1. Gustatory receptor cells
  2. Supporting or sustentacualar cells

“Common challenges in mastering heat transfer notes effectively: FAQs provided”

Question 5. Hypermetropia
Answer: