GATE Heat Transfer: Radiative heat transfer: laws, view factors, radiation network – Previous Year Questions

5 GATE previous year questions on Radiative heat transfer: laws, view factors, radiation network (Heat Transfer, Mechanical Engineering) with answers and explanations, from every paper.

1. GATE 2022 ME (ME1) Q35 (1 mark, Numerical answer) – A flat plate made of cast iron is exposed to a solar flux of 600 W/m2 at an ambient temperature of 25 °C. Assume that the entire solar flux is…
2. GATE 2023 ME Q43 (2 marks, Multiple choice) – A cylindrical rod of length h and diameter d is placed inside a cubic enclosure of side length L. S denotes the inner surface of the cube. The…
3. GATE 2024 ME Q50 (2 marks, Numerical answer) – Consider a hemispherical furnace of diameter D = 6 m with a flat base. The dome of the furnace has an emissivity of 0.7 and the flat base is a…
4. GATE 2025 ME Q48 (2 marks, Numerical answer) – Consider a cylindrical furnace of 5 m diameter and 5 m length with bottom, top and curved surfaces maintained at uniform temperatures of 800 K, 1500 K…
5. GATE 2026 ME Q54 (2 marks, Numerical answer) – Two rectangular surfaces both having 1 m2 area are placed perpendicular to each other with a common edge. One surface is hot, having a temperature of…