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Abstract. A heat exchanger is a heat transfer device that exchanges heat between two or more process fluids. Heat exchangers have widespread industrial and domestic applications. Many types of heat exchangers have been developed for use in steam power plants, chemical processing plants, building heat and air conditioning systems, transportation ...
The logarithmic mean temperature difference is an average quantification of the temperature difference between the shell and tube sides. It is calculated with the following equation. Equation-2. Where, ΔT 1 → the temperature difference between hot and cold fluids at one end of the heat exchanger. ΔT 2 → the temperature difference between ...
Answers: Types of Heat Exchanger Used for. 1) Dairy Plant (Milk Chilling Plant)- Plate Type Heat Exchanger. Because It is made up of an aluminum alloy which provides a higher rate of heat transfer. Due to larger surface area, It has more heat transfer as compared to other heat exchangers which.
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for Heat Exchanger Design & Calculations. Q1 = Density x Heat capacity x ( 1 - 2 ) x 3 / 3600 [kW] Q2 = Density x Heat capacity x ( 5 - 4 ) x 6 / 3600 [kW] (For water, density is 1000, and heat capacity is 4.186kJ/kg deg.C.) The heat duty on hot side (Q1) is equal to the heat duty on cold side (Q2); Q1 and Q2 must be the same (Q1 = Q2).
Design Problem. You have to design a heat exchanger to cool an ammonia gas stream which has a flow rate of 5000 kg/h in 67 bar. Temperature of ammonia stream should be decreased to 40 0 C from 120 0 C. As the coolant, water is going to be used and outlet temperature of water cannot exceed 40 0 C. Pressure drops over the heat exchanger must not ...
Heat exchangers are used to thermally process materials, and can be employed to heat or cool a range of products in applications such as food processing (refrigeration, pasteurization, and sterilization), chemical processing, energy production, and waste treatment. The thermodynamic considerations involved in the design and construction of heat ...
