GATE Heat Transfer: Heat exchangers and evaporators: types and design – Previous Year Questions
9 GATE previous year questions on Heat exchangers and evaporators: types and design (Heat Transfer, Chemical Engineering) with answers and explanations, from every paper.
- GATE 2022 CH Q30 – A perfectly insulated double pipe heat exchanger is operating at steady state. Saturated steam enters the inner pipe at 100 °C and leaves as saturated…
- GATE 2022 CH Q55 – A single-effect evaporator with a heat transfer area of 70 m2 concentrates a salt solution using steam. The salt solution feed rate and temperature…
- GATE 2023 CH Q27 – An isothermal jacketed continous stirred tank reactor (CSTR) operating at 150 °C is shown in the figure below. The cold feed entering the system at 30…
- GATE 2023 CH Q55 – A perfectly insulated, concentric tube countercurrent heat exchanger is used to cool lubricating oil using water as a coolant (see figure below). Oil…
- GATE 2024 CH Q38 – Hot oil at 110 °C heats water from 30 °C to 70 °C in a counter-current double-pipe heat exchanger. The flow rates of water and oil are 50 kg min-1 and…
- GATE 2025 CH Q17 – In industrial heat exchanger design, the overall heat transfer coefficient U is estimated from the equation 1U = 1h i + 1h o where h i and h o are the…
- GATE 2025 CH Q30 – Which of the following statements regarding multiple effect evaporators is/are TRUE?
- GATE 2025 CH Q51 – Water flowing at 70 kg/min is heated from 25 °C to 65 °C in a counter-flow double pipe heat exchanger using hot oil. The oil enters at 110 °C and…
- GATE 2026 CH Q52 – In a double pipe cocurrent heat exchanger, operating at steady state, oil (specific heat capacity = 2100 J kg-1 °C-1) entering at 7 kg s-1 at 100 °C…