Mechanical Engineering :: Heat Transfer,Refrigeration and Air Conditioning
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For evaporators and condensers, for the given conditions, the logarithmic mean temperature difference (tm) for parallel flow is __________ that for counter flow.
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A vapour absorption refrigerator uses __________ as a refrigerant.
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The material of pipe lines for a system using ammonia as a refrigerant should be copper.
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The wave length corresponding to the maximum energy is inversely proportional to the absolute temperature. This statement is called Planck's law.
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Which of the following refrigerant has the highest freezing point.
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Which of the following would lead to a reduction in thermal resistance?
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The ratio of the thickness of thermal boundary layer to the thickness of hydrodynamic boundary layer is equal to (Prandtl number)n, where n is equal to
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Free convection flow depends on
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