AB Energy Engineering

Coal

Petroleum

Natural Gas

Nuclear

Non-Renewable Energy (4)

[BiGSHOW]

Biomass

Geothermal

Solar

Hydropower

Ocean

Wind

Renewable Energy Sources (6)

Biomass

___ is higher in energy density

- Primary and Secondary Air

- Theoretical and Excess Air

- Calorific Value

Fuel Properties of Biomass

Direct Combustion

completely burning leaving ash as by product

Direct Combustion equipments

Cookstoves, flat-, inclined, conical, center tube, etc

- Furnaces - grate type, fluidized, etc

- Kilns, etc

Pyrolysis

bio-oil production and biochar

Pyrolysis equipment

- Rotary Kiln

- Screw Kiln

Torrefaction

improving the quality of fuel by removing moisture and noncombustible

volatile matter, increase energy content, hydrophobic, etc

- uses rotary cylinder

Gasification

production of CO, H2, and CH4 for heat and power

Fixed bed

Moving Bed

Fluidized Bed

Classification of Gasification (3)

- Heat

- Mechanical

- Electrical

Application of Biomass

Fixed-Bed Gasifier

● It is a very old

technology.

● Usually used for

small-scale

applications.

● Design and

operation are

relatively simple.

● Agri-residues as fuel

require densification

which will add cost.

Fluidized-Bed Gasifier

Fuel particles, together with an inert bed material such as

sand, can be fluidized by air movement.

● Gas stream passes vertically upward through a bed of inert

particulate materials forming a turbulent mixture of gas and

solid.

Bubbling Fluidized-Bed

Solid particles behave like a boiling

fluid but not transported by the air stream

Circulating Fluidized Bed

Gas velocity is higher and therefore

part of the bed material leaves the reactor vessel and transported

back to the reactor vessel via cyclone and return pipe.

Anaerobic Digestion

production of biogas (CH4 60% and CO2 40%)

hog manure, chicken, cattle,

Feedstock of biogas

Fermentation and Distillation

Bioethanol Production

Nipa sap, coconut sap, molasses, other sugar-rich crop

Feedstock of bioethanol

3 to 5 days

Fermentation using natural yeast takes ___ days

95%

Distillation to separate alcohol from water with or without

column to produce hydrous bioethanol, i.e __% alcohol

unleaded gasoline

Anhydrous alcohol 99.9% is use for blending with ___

Methyl Esterification

Biodiesel Production

Esterification (Biodiesel Production)

vegetable oil is mixed thoroughly with methoxide solution

consisting with KOH and methanol

glycerol

Mixture is allowed to settle overnight to separate biodiesel

from ___

B100

___ can be used as fuel for compressed ignition engine

Solar Thermal

Heat from the sun

- Low Temperature

- High Temperature

Classifications of Thermal System (2)

Solar collector, piping, and heat storage

System Component of Solar Thermal

flat black color or shiny for parabolic type

Solar collector is usually

Photovoltaic

Light from the sun

- Photo Cell

- Module

- Panel

- Array

Classification of PV

- Module/Panel

- Controller

- Battery

- Inverter

- Loads

- Wires/Cables

System Components of PV

Windpump

high torque less speed

Windpump

for water lifting

- Horizontal Axis

- Vertical Axis

- Cross Wind

Classification of windpump (3)

10 to 15%)

Overall System Efficiency of wind pump

1-2

Tip Speed Ratio of wind pump

Wind Turbine

Low torque, high speed

Wind Turbine

use of wind for electricity generation

Rotor, Transmission, Generator, tower, electrical line

including charge regulator and battery

Components of wind turbine

less

Solidity of wind turbine is ___ compared with windpump

20 to 25%

Overall System Efficiency of wind turbine

Micro Hydro

Generates mechanical and electrical power from falling water

Micro Hydro

Usually high head but low flow rate.

Water Wheel (70 to 90% efficiency)

Low head more flow

1 kw to 10 kW

Ram Pump (60 to 80%)

- Component Parts: drive and delivery pipe, valves, pressure chamber,

fittings, pressure gauges

Geothermal

typically generates 10 to 50 MW of electricity

Geothermal

Generate electricity by capturing the heat within the earth.

10 to 16%

Thermal efficiency of geothermal

Dry Steam and Flash Plants

high temperature resources 30 to 53 MW

Binary Cycle Plants

utilizes low temperature resources - 6 to 10 MW

Production well

[Components of Geothermal]

- to tap hot water and steam

Steam separator

[Components of Geothermal]

-separating water form dry steam

Steam Turbine

[Components of Geothermal]

- converts heat energy from steam into mechanical and

electrical power

Ocean

High energy density, High consistency, and high global potential

Wave

harvest the kinetic and potential energy of water surface ocean waves

Tidal

due to natural rise and fall of ocean water after collection drives a

water turbines.

Thermal

generates electricity by harnessing the temperature difference

between the hot and cold surface of water.

a. Republic Act No. RA 10915

The act regulating the practice of agricultural and

biosystem engineering in the Philippines.

a. Republic Act No. RA 10915

b. Republic Act No. 9513

c. Republic Act No. 8749

d. None of the above

b. Republic Act No. 9513

The Renewable Act of 2008.

a. Republic Act No. 8559

b. Republic Act No. 9513

c. Republic Act No. 8749

d. None of the above

e. None of the above

Which of the following is not a biomass?

a. Rice husk

b. Wood

c. Coal

d. Sugar bagasse

e. None of the above

g. All of the above

Which of the following is a renewable energy

source? (BiGSHOW)

a. Biomass

b. Solar

c. Wind

d. Hydro

e. Geothermal

f. Ocean

g. All of the above

b. Distributed generation system

Generates electricity from multiple, small-scale

sources located near the point of consumption, offering

enhanced reliability, efficiency, and reduced

environmental impact compared to traditional large,

centralized power plants. .

a. Co-generation system

b. Distributed generation system

c. Biomass generation system

d. None of the above

e. None of the above

Which of the following is a non- renewable energy

resource?

a. Biomass

b. Solar

c. Wind

d. All of the above

e. None of the above

f. Three of the above

Which of the following is considered as a biomass

material?

a. Rice Husk

b. Wood

c. Coal

d. Sugar bagasse

e. All of the above

f. Three of the above

g. None of the above

a. Primary air

An air that is used directly in the combustion of fuel.

a. Primary air

b. Secondary air

c. Excess air

d. All of the above

e. None of the above

b. Secondary Air

An air used to further burn the gases derived during

combustion.

a. Primary air

b. Secondary Air

c. Theoretical air

d. None of the above

c. Stoichiometric air

An air used to completely burn the fuel and convert

its by product into ash.

a. Theoretical air

b. Excess air

c. Stoichiometric air

d. None of the above

d. All of the above

An example of non-conventional power source.

a. Ocean Thermal Energy Converter

b. Underwater Turbine

c. Wave Energy Converter

d. All of the above

e. None of the above

c. Coal

Which of the following is considered as biomass but not

renewable?

a. Peat

b. Rice husk

c. Coal

d. None of the above

a. Republic Act No. 9367

The Biofuel Act of 2006.

a. Republic Act No. 9367

b. Republic Act No. 9513

c. Republic Act No. 8749

d. None of the above

e. None of the above

Which of the following is not a biofuel?

a. Bioethanol

b. Vegetable oil

c. Bio oil

d. All of the above

e. None of the above

a. P9.68 per kW-hr

The Feed-In Tariff (standard offer contract) for solar

power. (As of 2012)

a. P9.68 per kW-hr

b. P8.53 per kW-hr

c. P5.80 per kW-hr

d. P6.63 per kW-hr

e. None of the above

d. P6.63 per kW-hr

The Feed-In Tariff for biomass power.

a. P9.68 per kW-hr

b. P8.53 per kW-hr

c. P5.80 per kW-hr

d. P6.63 per kW-hr

e. None of the above

b. P8.53 per kW-hr

The Feed-In tariff for wind power.

a. P9.68 per kW-hr

b. P8.53 per kW-hr

c. P5.80 per kW-hr

d. P6.63 per kW-hr

e. None of the above

c. P5.80 per kW-hr

The Feed-In tariff for hydro power.

a. P9.68 per kW-hr

b. P8.53 per kW-hr

c. P5.80 per kW-hr

d. P6.63 per kW-hr

e. None of the above

A device used to convert light to electricity.

a. Solar collector

b. Photovoltaic cell

c. Thermoelectric chip

d. None of the above

c. Thermoelectric chip

A device used to convert heat to electricity.

a. Solar collector

b. Photovoltaic cell

c. Thermoelectric chip

d. None of the above

f. All of the above

Which of the following are the advantages of

renewable energy?

a. Supply of energy will not run out.

b. Free or cheap energy source.

c. Clean and does not produce pollution.

d. Highly suitable for off-grid application.

e. Suitable for decentralized operation.

f. All of the above

f. All of the above

Which are the disadvantages of RE?

a. Expensive

b. Weather dependent

c. Location Specific

d. Wider area is required to produce power.

e. Application Specific

f. All of the above

c. Geothermal

A renewable energy source which can be derived from

earth crust which is used to produce electricity and heat.

a. Hydro

b. Ocean

c. Geothermal

d. All of the above

b. wind

Form of renewable energy derived from the motion of

ocean waves generated by ___ transferring energy to the

water's surface.

a. water

b. wind

c. sun

d. None of the above

c. tides

A renewable energy source derived from the natural rise

and fall of ocean ___ which harnesses the kinetic energy of

moving water to generate electricity through turbines or

barrages.

a. waves

b. heat

c. tides

d. All of the above

a. Ocean thermal energy converter

A renewable energy technology that harnesses the

temperature difference between warm surface waters and

cold deep ocean waters to generate electricity..

a. Ocean thermal energy converter

b. Wave energy converter

c. Tidal energy converter

d. All of the above

b. Solar thermal energy system

A technology that uses sunlight to generate heat, which

can then be used for various applications, including

heating, electricity generation, and industrial processes.

a. Solar photovoltaic system

b. Solar thermal energy system

c. All of the above

d. None of the above

b. Solar photovoltaic energy system

A technology that converts sunlight into dc electricity

using silicon cells to generate direct current (DC)

electricity when exposed to sunlight.

a. Solar thermal energy system

b. Solar photovoltaic energy system

c. All of the above

d. None of the above

a. Biomass energy

A renewable energy source derived from organic matter, like

plants and animals for heating, electricity generation, and

transportation fuel.

a. Biomass energy

b. Geothermal energy

c. Wind energy

d. Solar energy

e. All of the above

c. Wind turbine

A renewable energy technology that capture the wind's

kinetic energy, are used to turn a generator and produce

electricity.

a. Wind mill

b. Wind pump

c. Wind turbine

d. All of the above

c. Hydro

A renewable energy source that harnesses the power of

moving water to generate electricity.

a. Wave

b. Tidal

c. Hydro

d. All of the above

f. All of the above

Environmental benefits of renewable energy.

a. Reduced Greenhouse Gas Emissions

b. Cleaner Air and Water

c. Reduced Reliance on Fossil Fuels

d. Land Use Benefits

e. Lower Water Usage

f. All of the above

g. Two of the above

f. All of the above

Economic Benefits of Renewable Energy.

a. Job Creation

b. Economic Growth

c. Energy Independence

d. Cost Savings

e. Rural Electrification

f. All of the above

g. Three of the above

b. Non -renewable energy

A natural resource that cannot be replenish

on a human time scale.

a. Renewable energy

b. Non -renewable energy

c. Biofuel

d. None of the above

e. All of the above

Example of non-renewable energy

a. Coal

b. Petroleum

c. Natural Gas

d. Nuclear

e. All of the above

f. None of the above

b. Petroleum

Diesel is non-renewable fuel from ____.

a. Coal

b. Petroleum

c. Natural gas

d. None of the above

b. Coal

A dark combustible rock mined from earth primarily burn

to produce electricity.

a. Uranium

b. Coal

c. Bitumen

d. None of the above

d. All of the above

Which of the following is a by-product of fractional

distillation of oil?

a. Diesel

b. Gasoline

c. Kerosene

d. All of the above

b. Natural gas

A gaseous fossil fuel the contains largely of methane?

a. Biogas

b. Natural gas

c. Synthetic gas

d. All of the above

d. All of the above

Advantages of non-renewable energy sources.

a. High energy density

b. Reliability

c. Established infrastructure

d. All of the above

e. None of the above