Question

A heat exchanger has an area of A = 0.9 m². It passes heat from fluid at Temperature T1 = 130 °C to a second fluid at T2 = 30 °C. The exchange wall is made of copper sheet having thermal conductivity \(\lambda = 367 \text{ W/mK}\) with thickness of X = 3mm. How much energy flows from one fluid to another in 2 hours.

          A heat exchanger has an area of A = 0.9 m². It passes heat from fluid at Temperature T1 = 130 °C to a second fluid at T2 = 30 °C. The exchange wall is made of copper sheet having thermal conductivity \(\lambda = 367 \text{ W/mK}\) with thickness of X = 3mm. How much energy flows from one fluid to another in 2 hours.
        
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A heat exchanger has an area of A = 0.9 m². It passes heat from fluid at Temperature T1 = 130 °C to a second fluid at T2 = 30 °C. The exchange wall is made of copper sheet having thermal conductivity λ = 367  W/mK with thickness of X = 3mm. How much energy flows from one fluid to another in 2 hours.

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Chemistry: Structure and Properties
Chemistry: Structure and Properties
Nivaldo Tro 2nd Edition
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A heat exchanger has an area of A = 0.9 m2. It passes heat from fluid at Temperature T1= 130 C to a second fluid at T2=30 C.The exchange wall is made of copper sheet having thermal conductivity_ = 367 W/mK with thickness of X = 3mm. How much energy flows from one fluid to another in 2 hours.
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Transcript

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00:01 Here in this question first we can write down a given data that is for hot fluid the value of this th1 that is our 200 degree celsius, the mass flow rate that is m dot h is equal to 10 to the power 4 kilogram per hour and the constant cph that is equal to 2000 joule per kg kelvin and the constant value of cph that is equal to 2 kilo joule per kg kelvin.
00:40 We can also write this term now.
00:44 The second condition is for hot fluid, for cold fluid the value of this th1 and tc1 is equal to 25 degree celsius.
00:59 The mass flow rate m dot c that is equal to 2500 kilo per hour, the value of cpc that is equal to 0 .4 kilo joule per kg kelvin.
01:16 The area is given that is equal to 20 meter square and the value of u is equal to 0 .25 kilowatt per meter square kelvin.
01:30 Now we have to find from the ntu method the value of c dot h that is ch is equal to mh cph that is our 10 to the power 4 multiplied by 2 that is equal to 2 into 10 to the power 4 kilo joule per kelvin hour...
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