Question:medium
In jet type steam condensers; .
In jet type steam condensers; .
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Just remember: A Jet condenser "sprays" a jet of water right into the steam. They Mix immediately. It’s like taking a cold shower—you and the water are in direct contact!
Updated On: Jul 1, 2026
- cooling water passes through the tubes and steam surrounds them.
- steam passes through the tubes and cooling water surrounds them.
- mixing of steam and cooling water.
- partially mixing of steam and cooling water.
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The Correct Option is C
Solution and Explanation
1. Defining Jet Condensers: In a
Jet Condenser, the exhaust steam and the cooling water come into
direct physical contact and mix with each other.
• The cooling water is usually sprayed through nozzles into the steam space.
• Because the two fluids mix, the condensation is extremely rapid and efficient.
• The final product at the bottom of the condenser is a mixture of the condensed steam (distilled water) and the cooling water.
2. Advantages and Disadvantages:
• Advantages: They are smaller, simpler, and much cheaper to build than surface condensers. They also require less cooling water for the same amount of condensation.
• Disadvantages: The biggest drawback is that the condensed steam (which is pure distilled water) gets mixed with the cooling water (which may be salty or dirty). This means the condensate usually cannot be reused directly as boiler feed water.
3. Contrast with Surface Condensers: Options (A) and (B) describe
Surface Condensers, where the steam and cooling water are separated by metal tube walls. In surface condensers, the fluids
never mix, allowing the pure condensate to be recycled back into the boiler.
Jet Condenser, the exhaust steam and the cooling water come into
direct physical contact and mix with each other.
• The cooling water is usually sprayed through nozzles into the steam space.
• Because the two fluids mix, the condensation is extremely rapid and efficient.
• The final product at the bottom of the condenser is a mixture of the condensed steam (distilled water) and the cooling water.
2. Advantages and Disadvantages:
• Advantages: They are smaller, simpler, and much cheaper to build than surface condensers. They also require less cooling water for the same amount of condensation.
• Disadvantages: The biggest drawback is that the condensed steam (which is pure distilled water) gets mixed with the cooling water (which may be salty or dirty). This means the condensate usually cannot be reused directly as boiler feed water.
3. Contrast with Surface Condensers: Options (A) and (B) describe
Surface Condensers, where the steam and cooling water are separated by metal tube walls. In surface condensers, the fluids
never mix, allowing the pure condensate to be recycled back into the boiler.
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