What are some other ways to save energy in a car besides turning off the air conditioner and rolling down the windows?

Q: What is causing temperatures around the earth to rise?

A: The rise of temperature around the Earth is called global warming. This rise in temperature around…

Q: A well-insulated and perfectly sealed room is installed with 4-hp fan to circulate air for 1.5…

A:

Q: Water flows from a hose bib at a rate of 15.8 gallons per minute. What is the rate in liters per…

A: Given data: Flow rate = 15.8 gallons per minute = 15.8 gallonsminute As we know, 1 gallon = 3.785412…

Q: What are the four terms used to describe thermal properties of a material?

A: There are different properties of materials, they are Mechanical properties, Physical properties,…

Q: 13. What is the equation for efficiency of jet propulsion?

A: To find : Equation for efficiency of jet propulsion.

Q: What is a major source of information about thermal conditions necessary for human comfort?

A: The thermal conditions affect the human comfort to a greater extent, hence its necessary to consider…

Q: A nozzle discharges 155lit/sec with a velocity of 35m/s. The entire jet strikes a vane moving in the…

A: Discharge (Q)=155l/s Velocity of jet(V)=35m/s Velocity of vane(u)=20m/s

Q: Explain the functioning of a wind turbine.

A:

Q: Consider an airfoil operating at transonic speeds. Discuss the effect of heat as a function of…

A: Instantaneous and mean lift drag coefficients are calculated for several temperature differences…

Q: When are the chemical kinetics rate-controlling?

A: Chemical Kinetics: Chemical kinetics is the branch of physical chemistry. It is also known as…

Q: What is the importance of Evapotranspiration?

A: Given data in question  Evapotranspiration  To be discussed  Importance of Evapotranspiration.…

Q: Civil Engineering An office building with a lower energy consumption should get a better energy…

A: Energy Efficient building Buildings that are built to give a considerable reduction in the energy…

Q: Why is a two-pipe vacuum steam-heating system used in large buildings?

A: For the application of ventilation, air conditioning to carry the steam and to return condensation…

Q: What fuels are used to fire warm-air furnaces?

A: Solution: Warm air furnaces use blowers to move the heated air, A warm-air furnace is fired using…

Q: What does the heating value of a fuel represent?

A: Brief concept- Fuel- A material that is burnt to get heat and power is called fuel. For example-…

Q: What is the Importance of the Geothermal System to the field of Civil Engineering

A: Geothermal  Geothermal is energy from within earth crust as a result of radioactive decay reactions…

Q: Visit a home improvement center (hardware/lumber store) in your town, and try to gather information…

A: (1) Fiberglass Advantages: (a)Most common (b)non-flammable (c)resistant to moisture damage. (d)…

Q: The longest footbridge in the world is found in San Francisco California. You are a civil engineer…

A: Length of steel deck(L)=50m T1=71oC T2=95oC

Q: What is the difference between thermal radiation,thermal conduction, and thermal convection?

A: The weather effects on the building are due to improper finishing of the structures. The main cause…

Q: Ladders can be made using aluminum alloy, fiberglass, and wood. What will be the pros and cons of…

A: A ladder is generally an inclined and vertical set of rungs or steps. One type of ladder is Rigid…

Q: One kilowatt equals how many watt-hours?

A: Kilo means thousand.

Q: What can people do to reduce personal health risks from air pollution ?

A: Use masks which reduce the intake of impurities from air into body. Growing of more number of trees…

Q: Calculate the amount of thermal energy required to raise the temperature of 20 gallon of water from…

A: The volume of water is 20 gallons.

Q: Use second law of thermodynamics to explain global warming,why battery runs down and why rusting is…

A: Brief concept introduction- The second law of thermodynamics- According to the second rule of…

Q: potential energy a one type of energy common to the work of civil engineer

A: Potential energy is a result of an object's position, mass and the acceleration of gravity. A book…

Q: What do you mean by heat of combustion?

A: Solution: Heat of combustion is defined as that the amount of heat that is being liberated when the…

Q: theoretical oxygen demand,

A: If the organic compounds and their concentrations present in water are exactly known,the oxygen…

Q: Light from a chromatic light source strikes a surface. Seventy percent of the light is reflected and…

A: (1) It is required to determine the percentage of light transmitted. % Transmit=100-% Reflected+%…

Q: What is the difference between alternating current and direct current?

A: Alternating current - Alternating current is current in which direction of electrons switches back…

Q: 3. Find the total weight of a 10 ft' tank of oxygen if the oxygen is pressurized to 500 psia, the…

A: To determine Total weight?

Q: So, what is the relationship between solar cells and global positioning systems (GPS)?

A: This question has been taken from surveying

Q: A family keeps this record of the number of gallons of fuel oil used to heattheir home:Find the…

A: To find:- total number of gallons

Q: Question#1\\ Drive the equation of energy.

A:

Q: A thermometer, reading 5°C, is brought into a room whose temperature is 22°C. One minute later the…

A:

Q: Describe the active solar heating systems. How do they function?

A: Solar energy systems convert the heat or electricity from the sun's beams. Regional construction and…

Q: Reflection on the most dangerous bridges in the world

A:

Q: What is responsible for the largest share of energy consumption in the U.S. building sector

A: The U.S. uses multiple different sources and types of energy, that can be assembled into general…

Q: Pipe lengths of 2 inches, 8 inches, 108 inches, 8 inches, and 24 inches areused to make a conduit…

A: Given:- Different lengths of pipes are given to make a conduit The lengths of the pipe are:- P1 = 2…

Q: Hello, I need some help with this question 1 gallon of oil = 4.1 therm and 1 therm costs $1.40 You…

A: Given data- Heat loss = 3,600,000 BTU 1 therm = 100,000 BTU 1 therm costs $1.40 1 gallon of oil =…

Q: What are the examples of biogas system in the field of civil engineering?

A: The only function of biogas system in field of civil engineering is to produce biogas which is used…

Q: convert 36 cubic feet per second to gallons per minute

A:

Q: Q.71. Write short note on energy efficiency in planning of building.

A: Energy efficiency in planning of building:- A building is said to be good only when it is…

Q: 13. What is the name for a vector that represents the sum of two vectors? C. scalar A. moment B.…

A: ANS (13 ): Option D The sum of two vectors is called resultant vector. ANS (14 ): Option C Diagram…

Fundamentals of World Energy Use

Population growth has a direct relation to the growing energy demand of mankind. A major emphasis has been laid on the usage of various energy supplies from both renewable and nonrenewable energy sources to meet the global energy demand. The energy supply from burning renewable energy sources such as bioenergy, hydropower, and natural gas has accounted for clean release of the by-products and zero carbon emissions. On the other hand, large-scale energy supply from the combustion of fossil fuels forms the global energy system. Fossil fuels fulfill two-thirds of the world's energy consumption.