In a plate and frame heat exchanger with the distance between plates (s), plate

Question

In a plate and frame heat exchanger with the distance between plates (s), plate width (b), and plate thickness (t), and plate length L. The flow area is: sb; bL; sL. In pipe network analysis, the Hardy Cross Method will require the estimation of the following to get started: friction factors; volume flow rates; pressure drops.. In plate and frame heat exchanger, which one of the current formula for heat transfer is NOT correct? q = U_oA_oN_s delta t; q = U_oA_oF(LMTD); q = dot m_cC_pc(t_2 -t_1). In the calculation of air-side Reynolds number (Re) used in the Colburn modulus and friction factor equations for cross-flow heat exchangers, the following definition of the velocity is used: (V_air + V_liquid)/2; V_free stream; V_max. In general, which flow arrangement is preferred in heat exchanger design? counter flow; parallel flow; mixed flow. A fan's efficiency is represented as: delta p_t(flow rate)/(T omega)). The flow rate refers to: volume flow rate; mass flow rate; motor power. The cooling degree day (CDD) is related to what temperature that has been above a specific base temperature? air conditioner; indoor air; outside air. A plate and frame heat exchanger with a plate surface area of 4.5 ft^2 is designed to transfer heat at 37.2 BTU/s. Warm water enters at 59.8 degree F and exits at 57.4 degree F, while cold water enters a 50.1 degree F and exits at 66.2 degree F. If the exchanger coefficient is 345 BTU/(hr.ft^2. degree R), correction factor is 0.977, compute: LMTD; number of plates needed.

Explanation / Answer

1.1 The flow are is the area in which the fluid flow occurs in this case the flow will take occur in the area between the plates along its width. Hence flow area will be sb

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