Shown below is a heat exchanger used to cool down the liquid in the tube. The shell is well insulated. (1) If the tube is selected as the system, select

The food storage room requires a cooling system with a capacity of 10 tons of refrigeration which operates at an evaporator temperature of -17.8 degrees Celsius and a condenser temperature of 30.1 degrees Celsius. The activities used are R-717 and the operating system is in saturated conditions. Determine a. Flow rate b. refrigerant flow rate c. rate of heat loss in the condenser.

What are the 3 major thermal resistances to heat flow in a double -pipe heat exchanger. State assumptions.

in a 10-m long center-current flow tubular heat exchanger, a liquid food, flowing in the inner pipe (inside diameter 5 cm), is heated from 4 to 60 C for pasteurization. In the outer tube (diameter 10 cm), hot water enters at 95 C and exits at 80 C.    A) If the mass flow rate of the hot water is 5 kg/s, what is the flow rate of the pasteurized product? The specific heat of the water is 4.2 kJ/(kg C), specific heat of product is 3.8 kJ/(kg C) B) what is the log mean temperature difference C) What is the overall heat transfer coefficient for the heat exchanger based on the outside surface?

QUESTION 9 As in the previous question, a concentric-tube, counter-flow heat exchanger, as shown below, is used to cool mercury [C, h = 1,370 J/kg - "C] flowing at a rate of 1.0 kg/s from 110°C to 70°C. 10 The cooling fluid is water entering the heat exchanger at a temperature of 30°C and flow rate of 0.2 kg/s. The overall heat transfer coefficient of the exchanger is U = 250 w/m² - °C. Water Mercury Calculate the required heat transfer area. O 7.75 m2 O 11.75 m2 O 4.75 m2 O None of these answers O 8.75 m2 Click Save and Submit to save and submit. Click Sare All Answers to save all answers. Save All Answers 人 100% G

3.36 Both C's in a parallel-flow heat exchanger are equal to 156 W/K, U 327 W/m²K and A = 2 m². The hot fluid enters at 140°C and leaves at 90°C. The cold fluid enters at 40°C. If both C's are halved, what will be the exit temperature of the hot fluid?

Using that information and this table  For the average monthly rate of geothermal heat available, determine, for the real case: in a tabular format and show sample calculation for one month. the necessary monthly average mass flow rate (in kg/s) of the refrigerant that must be pumped through the heat exchanger to collect the thermal energy from the available geothermal hot water flow rate if the hot water was cooled by 5°C. What should be the flow capacity (in kg/s) of feed pump of the ORC heat engine that you are designing and the monthly average net electric power generation capacity (in kW). 2. the monthly average net electric power generation capacity (in kW) and yearly average net electrical power generation capacity (in kW).