A liquid to gas heat exchanger is used to recover heat from the engine oil on a prime mover (internal combustion engine). The hardware, which is based on the principle of a cross-flow heat exchanger (with both fluids unmixed), utilises this heat recovery process to provide drying for another industrial process at the site. In doing so, it both helps control engine temperatures and also save money by not needing to use electrical power (from the grid) for preheating the air used in drying. On one day, 30degC air flows across the fins at a rate of 0.31kg/s. At the same time, oil from the prime mover flows into the heat exchanger at 75degC and 0.030kg/s. This oil leaves the heat exchanger at 48°C. Assume the specific heats are as follows: Cp(oil)=2047J/kg.K Cp(air)=1007J/kg.K "Note If property data are extracted from tables in your solution, clearly identify these data and the tables they are extracted from. Use the first law of thermodynamics and calculate the exit temperature (Units: K) of the preheated air to be used in drying.

A liquid to gas heat exchanger is used to recover heat from the engine oil on a prime mover (internal combustion engine). The hardware, which is based on the principle of a cross-flow heat exchanger (with both fluids unmixed), utilises this heat recovery process to provide drying for another industrial process at the site. In doing so, it both helps control engine temperatures and also save money by not needing to use electrical power (from the grid) for preheating the air used in drying. On one day, 30degC air flows across the fins at a rate of 0.31kg/s. At the same time, oil from the prime mover flows into the heat exchanger at 75degC and 0.030kg/s. This oil leaves the heat exchanger at 48°C. Assume the specific heats are as follows: Cp(oil)=2047J/kg.K Cp(air)=1007J/kg.K "Note If property data are extracted from tables in your solution, clearly identify these data and the tables they are extracted from. Use the first law of thermodynamics and calculate the exit temperature (Units: K) of the preheated air to be used in drying.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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