Heat Transfer T...

The condensate film runs down a vertical flat surface where saturated steam is allowed to condense. Condensation’s local coefficient of heat transfer

A steam condenser is transferring 250 k W of thermal energy at a condensing temperature of 65 degree Celsius. The cooling water enters the condenser at 20 degree Celsius with a flow rate of 7500 kg/hr. If overall heat transfer coefficient for the condenser surface is 1250 W/m² K, what surface area is required to handle this load?

What is the value of overall heat transfer coefficient ammonia condensers?

Which of the following is having highest value of overall heat transfer coefficient?

For laminar film condensation on a vertical plate, the local heat transfer coefficient at the lower edge of the plate is given by

The outer surface of a vertical tube is 1.25 m long and outer diameter is 50 mm is exposed to saturated steam at atmospheric pressure. If the tube surface is maintained at 80 degree Celsius by the flow of cooling water through it, determine the rate of heat transfer to the coolant

What is the value of the overall heat transfer coefficient for air to heavy tars and liquid?

Exhaust gases (c _P = 1.12 k J/kg K) flowing through a tubular heat exchanger at the rate of 1200 kg/hr are cooled from 400 degree Celsius to 120 degree Celsius. This cooling is affected by water (c _P = 4.18 k J/kg K) that enters the system at 10 degree Celsius at the rate of 1500 kg/hr. If the overall heat transfer coefficient is 500 k J/m² hr degree, what heat exchanger area is required to handle the load for counter flow arrangement?

What is the value of the overall heat transfer coefficient for air condensers?

Heat transfer coefficients for natural convection across the surface of a vertical pipe and a vertical flat plate at the same height. What could be the cause(s) of this?

(i) Same height
(ii) Both vertical
(iii) Same fluid
(iv) Same fluid flow pattern

Select the correct answer