6. 1- J:Water is passed through a 3 cm internal diameter, 8 m long tube is heatedfrom 15 °C to 75°C . The tube is equipped with an electric resistance heater,which provides uniform heating throughout the surface of the tube. Theouter surface of the heater is well insulated, so that in steady operation allthe heat generated in the heater is transferred to the water in the tube. Ifthe system is to provide hot water at a rate of 8 L/min, determine the powerrating of the resistance heater. Also, estimate the inner surfacetemperature of the pipe at the exit.L3p= 990.1kg/m?k = 0.637 W/m.°Cv = u/p=0.602 x10-6 m²/sC, = 4180 J/kg.°CPr = 3.91

To find : power rating of the heater and inner surface temperature at the exit of pipe. Given:…

m 15 °C to 75°C. The tube is equipped with an electric resistance heater, ich provides uniform heating throughout the surface of the tube. The ter surface of the heater is well insulated, so that in steady operation all heat generated in the heater is transferred to the water in the tube. If system is to provide hot water at a rate of 8 L/min, determine the power ing of the resistance heater. Also, estimate the inner surface nperature of the pipe at the exit.

m 15 °C to 75°C. The tube is equipped with an electric resistance heater, ich provides uniform heating throughout the surface of the tube. The ter surface of the heater is well insulated, so that in steady operation all heat generated in the heater is transferred to the water in the tube. If system is to provide hot water at a rate of 8 L/min, determine the power ing of the resistance heater. Also, estimate the inner surface nperature of the pipe at the exit.

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

See similar textbooks

Related questions

Q: 4. A car engine with the dimensions 0.6 m high, 0.50 m-wide, and 0.8-m- long. The bottom surface of…

A: Data given-

Q: em genertoare atothetanghatadn power antsto gnerate madere reend emperture G at are u eure and…

A: (i) The stream mass flow rate is 12 kg/s. (ii) The inlet velocity of the steam is 4.24 m/s. (iii)…

Q: Water is to be heated as it flows through a carbon-silicon pipe of inner diameter 3 cm and wall…

Q: At winter design conditions, a house is projected to lose heat at a rate of 60,000 Btu/h. The…

A: Given data heat loss at a rate of =60000 Btu/h. internal heat gain=6000 Btu/h.To determine…

Q: Derive equation for heat transfer by conduction through hollow cylinder. Also mention assumptions…

A: In heat transfer analysis, the rate of change of state is evaluated by calculating the rate of heat…

Q: Envision a solar water heater, a device which receives energy from the sun (solar radiation or…

Q: was given this solution, Please advise on the solution

Q: id at constant volume and and AT is the temperature difference during the process Example 3-1:A…

A: Given data: The initial internal energy in the tank is U1=800 kJ The heat out from the tank is…

Q: Is the work done by the system positive, negative, or zero during an adiabaticprocess where the…

A: The objective of the question is to understand the concept of work done by a system during different…

Q: (c) Find the maximum possible thermal efficiency for a heat engine operating between two reservoirs…

A: Here is the step-by-step explanation We will use the Carnot efficiency formula, to find the maximum…

Q: A piston-cylinder device contains (0.85 kg) of refrigerant (134a) at (-10°C). The piston that is…

A: solution: mp = 12 kg mr = 0.85 kg P= 88 kPa T1= -10 C T2 = 15 C

Concept explainers

Mechanisms of heat transfer

Heat transfer is an essential discipline in thermal engineering that deals with the transfer, conversion, usability, and creation of heat or thermal energy. Transfer of heat occurs through various mechanisms like conduction, convection, radiation, and change of phases. All these mechanisms have distinct characteristics, but these mechanisms can simultaneously occur in an identical system.

Question

6. 1
- J:
Water is passed through a 3 cm internal diameter, 8 m long tube is heated
from 15 °C to 75°C . The tube is equipped with an electric resistance heater,
which provides uniform heating throughout the surface of the tube. The
outer surface of the heater is well insulated, so that in steady operation all
the heat generated in the heater is transferred to the water in the tube. If
the system is to provide hot water at a rate of 8 L/min, determine the power
rating of the resistance heater. Also, estimate the inner surface
temperature of the pipe at the exit.
L
3
p= 990.1kg/m?
k = 0.637 W/m.°C
v = u/p=0.602 x10-6 m²/s
C, = 4180 J/kg.°C
Pr = 3.91

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

A horizontal pipe with a constantdiameter of 0.04 mhas a skady flaw of Refnigerant 134a entering at 300 kla 40°C, and a mass flow rate of 0.6 kg/sec, and leaving at l 240 kla and 50°C Deteminethe magnitude of the rate Of heat transfer between the pipe and its Surroundungs in kW using 5 signifigant figures. quoLg SMt gunb ot pn
determine the efficiency of the heat transfer process if a dry air parcel is heated by the earths surface at 15 c and rises adiabatically to the tropopause at -40 c. Assume the parcel follows the carnot cycle
3. Prove that the 1-D heat conduction equation ƏT a2T at ax? is a parabolic equation.
A closed stirred-tank reactor with two compartmentsis shown in Fig. The basic idea is to feed the reactants continuously into the first compartment, where they will be preheated by energy liberated in the exothermic reaction,which is anticipated to occur primarily in the second com-partment. The wall separating the two compartments is quite thin, thus allowing heat transfer; the outside of thereactor is well insulated; and a cooling coil is built intothe second compartment to remove excess energy liberated inthe reaction. Both tanks are completely full at all times.Tests are to be conducted initially with a single-component feed (i.e., no reaction) to evaluate the reactor’s thermalcharacteristics.(a)Develop a dynamic model for this process under the conditions of no reaction. Assume that q0,Ti,andTc all may vary.(b)Make a degrees of freedom analysis for your model—identifying all parameters, outputs, and inputs that must beknown functions of time in order to obtain a solution.(c)In…
I need help with this problem
It is proposed to cool oil in a counter-current, concentric tube heatexchanger composed of a thin-walled inner tube of 0.02 m diametercarrying oil and thin-walled, perfectly insulated outer tube of 0.05 mdiameter carrying water. The oil flow rate is 50.0 kg min-1 and it has to becooled from 90°C to 40°C using 60 kg min-1 water at 20°C. Determine the length required for the heat exchanger. Comment onthe practicality of this length.
refrigeration system/thermo
You want to heat a house on a very cold day as shown in the figure. To do this, you want to use photovoltaic panels as an energy source. It would be about using 15 panels each with an area of 1.5 m2. These panels would be connected to an electrical resistance that would heat the house as shown in the figure. The house is losing heat through the walls and ceiling as shown in the figure. The panels are receiving solar radiation at a rate of 800 W / m2 and if their efficiency is 15%. How much will the temperature of the house rise after an hour? The house is hermetically sealed. Assume that the specific heats of air, cv and cp, are constant as shown in the figure. sol = sun fuga = leakage aire = air
n electric generator at a power plant produces energy by passing superheated steam from a high temperature container (reservoir), through a pipe connected to a series of fans, and then into a low temperature reservoir. As the steam passes across the blades of the fans some of the heat energy of the steam is transformed into mechanical energy, which turns the fans which in turn are connected to a generator, which in turn converts the mechanical energy into electrical energy. If the high temperature steam has a temperature of 412.1 K and the low temperature reservoir has a temperature of 105.4 K, what is the Carnot efficiency of this process?
Hello Sir, Good Afternoon.I have a question in my homework related Heat Transfer lesson. The following below is my question. Please Advice, thank you.