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In a counterflow heat exchanger, hot fluid enters at 60°C and cold fluid leaves at 30°C. Mass flow rate of the hot fluid is 1 kg/s and that the cold fluid is 2 kg/s. Specific heat of the hot fluid is 10 kJ/kgK and that of the cold fluid is 5 kJ/kgK. The Log Mean Temperature Difference (LMTD) for the heat exchanger in °C is
[2007]
- a)15
- b)30
- c)35
- d)45
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
In a counterflow heat exchanger, hot fluid enters at 60°C and cold...
Heat capacity of hot fluid
= 1 × 10 = 10 kJ / k – s
Heat capacity of cold fluid
= 2 × 5 = 10 kJ / k – s
Since heat capacity is same, so LMTD is difference of temperature at either end
i.e. LMTD = 60º – 30º = 30º C
= 1 × 10 = 10 kJ / k – s
Heat capacity of cold fluid
= 2 × 5 = 10 kJ / k – s
Since heat capacity is same, so LMTD is difference of temperature at either end
i.e. LMTD = 60º – 30º = 30º C
Most Upvoted Answer
In a counterflow heat exchanger, hot fluid enters at 60°C and cold...
Heat capacity of hot fluid
= 1 × 10 = 10 kJ / k – s
Heat capacity of cold fluid
= 2 × 5 = 10 kJ / k – s
Since heat capacity is same, so LMTD is difference of temperature at either end
i.e. LMTD = 60º – 30º = 30º C
= 1 × 10 = 10 kJ / k – s
Heat capacity of cold fluid
= 2 × 5 = 10 kJ / k – s
Since heat capacity is same, so LMTD is difference of temperature at either end
i.e. LMTD = 60º – 30º = 30º C
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In a counterflow heat exchanger, hot fluid enters at 60°C and cold...
In a counterflow heat exchanger, hot fluid enters at 60°C.
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In a counterflow heat exchanger, hot fluid enters at 60°C and cold fluid leaves at 30°C. Mass flow rate of the hot fluid is 1 kg/s and that the cold fluid is 2 kg/s. Specific heat of the hot fluid is 10 kJ/kgK and that of the cold fluid is 5 kJ/kgK. The Log Mean Temperature Difference (LMTD) for the heat exchanger in °C is[2007]a)15b)30c)35d)45Correct answer is option 'B'. Can you explain this answer?
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In a counterflow heat exchanger, hot fluid enters at 60°C and cold fluid leaves at 30°C. Mass flow rate of the hot fluid is 1 kg/s and that the cold fluid is 2 kg/s. Specific heat of the hot fluid is 10 kJ/kgK and that of the cold fluid is 5 kJ/kgK. The Log Mean Temperature Difference (LMTD) for the heat exchanger in °C is[2007]a)15b)30c)35d)45Correct answer is option 'B'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about In a counterflow heat exchanger, hot fluid enters at 60°C and cold fluid leaves at 30°C. Mass flow rate of the hot fluid is 1 kg/s and that the cold fluid is 2 kg/s. Specific heat of the hot fluid is 10 kJ/kgK and that of the cold fluid is 5 kJ/kgK. The Log Mean Temperature Difference (LMTD) for the heat exchanger in °C is[2007]a)15b)30c)35d)45Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a counterflow heat exchanger, hot fluid enters at 60°C and cold fluid leaves at 30°C. Mass flow rate of the hot fluid is 1 kg/s and that the cold fluid is 2 kg/s. Specific heat of the hot fluid is 10 kJ/kgK and that of the cold fluid is 5 kJ/kgK. The Log Mean Temperature Difference (LMTD) for the heat exchanger in °C is[2007]a)15b)30c)35d)45Correct answer is option 'B'. Can you explain this answer?.
In a counterflow heat exchanger, hot fluid enters at 60°C and cold fluid leaves at 30°C. Mass flow rate of the hot fluid is 1 kg/s and that the cold fluid is 2 kg/s. Specific heat of the hot fluid is 10 kJ/kgK and that of the cold fluid is 5 kJ/kgK. The Log Mean Temperature Difference (LMTD) for the heat exchanger in °C is[2007]a)15b)30c)35d)45Correct answer is option 'B'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about In a counterflow heat exchanger, hot fluid enters at 60°C and cold fluid leaves at 30°C. Mass flow rate of the hot fluid is 1 kg/s and that the cold fluid is 2 kg/s. Specific heat of the hot fluid is 10 kJ/kgK and that of the cold fluid is 5 kJ/kgK. The Log Mean Temperature Difference (LMTD) for the heat exchanger in °C is[2007]a)15b)30c)35d)45Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a counterflow heat exchanger, hot fluid enters at 60°C and cold fluid leaves at 30°C. Mass flow rate of the hot fluid is 1 kg/s and that the cold fluid is 2 kg/s. Specific heat of the hot fluid is 10 kJ/kgK and that of the cold fluid is 5 kJ/kgK. The Log Mean Temperature Difference (LMTD) for the heat exchanger in °C is[2007]a)15b)30c)35d)45Correct answer is option 'B'. Can you explain this answer?.
Solutions for In a counterflow heat exchanger, hot fluid enters at 60°C and cold fluid leaves at 30°C. Mass flow rate of the hot fluid is 1 kg/s and that the cold fluid is 2 kg/s. Specific heat of the hot fluid is 10 kJ/kgK and that of the cold fluid is 5 kJ/kgK. The Log Mean Temperature Difference (LMTD) for the heat exchanger in °C is[2007]a)15b)30c)35d)45Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Mechanical Engineering.
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ample number of questions to practice In a counterflow heat exchanger, hot fluid enters at 60°C and cold fluid leaves at 30°C. Mass flow rate of the hot fluid is 1 kg/s and that the cold fluid is 2 kg/s. Specific heat of the hot fluid is 10 kJ/kgK and that of the cold fluid is 5 kJ/kgK. The Log Mean Temperature Difference (LMTD) for the heat exchanger in °C is[2007]a)15b)30c)35d)45Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice Mechanical Engineering tests.
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