MECHANICALFUNDA for Mechanical Engineers: January 2021

Advantages and disadvantages of sound energy

Sound energy is caused by the vibration of particles in matter. Sound is a mechanical type of wave that needs a medium to travel through. This energy is generated by drums, guitar, or radio. So here this article gives the advantages and disadvantages of sound energy to better understand this topic.

Pros or Advantages of sound energy:

The operations and maintenance are very low.
It is pollution-free.
The sound of whale song can travel longer distances.
It is a renewable source of energy.
It does not require any kind of fuel.
Sound energy can be easily converted to electrical energy and vice versa.
It can be used in places where the sound is very low.

Cons or Disadvantages of sound energy:

Sound waves can not be seen and hence we can not pressure waves due to sound energy.
Sound can not travel through the vacuum.
The sound energy should be below a certain power level, otherwise, it can be annoying to human beings.
Sound energy can break the glass.

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Advantages and disadvantages of air suspension system

The air suspension system is a style of vehicle suspension powered by an electric pump or it is called the compressor that pumps air into flexible bellows that are typically made out of textile reinforced called as the type of rubber. So here this article gives the main key advantages ad disadvantages of the air suspension system to better understand this topic.

Pros OR Advantages of air suspension system:

It has greatly improved the driving comfort of the vehicle.
It improves the ride height based on the load weight and vehicle speed.
In this method Higher corner speed due to air suspension being better suited to the surface of the load.
Air suspension which is reduces the tendency of short wheelbase trucks to bounce. It is over rougher roads and terrain When the vehicle is empty.
Trailers are last longer with air suspension the reason that the system component doesn't take on as many vibrations.
Less wear and tear on the suspension system due to reduced harshness and is also controls the vibrations of heavy-duty driving.
In this process the more driver comfort due to the reduction in noise, harshness, and the vibration on the road that can cause driver discomfort and fatigue.

Cons OR Disadvantages of air suspension system:

The new technology system is not mature, the high failure rate.
High maintenance costs.
It is used to e the difficult ad invasive installation process, which sometimes involves lots of nasty cutting ad drilling.

Advantages and disadvantages of geothermal energy

Geothermal comes to the words from the Greek word geo which means earth and thermo which means heat. So, geothermal energy means some energy or called power is extracted from beneath the earth. The energy inside the earth was formed by the decay of minerals and forests several many years ago. As we all know that this energy is a renewable type of energy and it is available in most regions and thus outperforming some of the conventional sources in many ways. Here you all of you have to learn some advantages ad disadvantages of geothermal energy to better understand this topic.

Pros OR Advantages of Geothermal Energy:

It is a renewable source of energy.
This enrgey can be used directly. This source of energy is used by people for heating homes, cooking, etc.
The maintenance cost of the geothermal power plant is very less.
It is nonpolluting and environment friendly, pollution levels are much lower.
There is no wastage or generation of by-products.
Not fuel requires.
Quieter operation because of no outdoor compressor or not a fan.
Unlike solar energy, this energy is not dependent on weather conditions.
An increase in exploration meaning that new technologies are being created to improve the energy process.
Geothermal energy can adjust to various conditions.
Geothermal power plants don't occupy too much space and this is the reason that it helps in protecting the natural environment.
Fewer moving parts mean minimal maintenance issues.
Installation is eligible for tax cuts.
A sustainable source of energy as it's always unlike available unlike wind and solar.
This energy source is more environmentally friendly than comparing to conventional fuel sources.
The number of exploitable geothermal resources increases with ongoing research and development in the industry.
Provide either baseload or peak power energy output.
A reliable source as it's easier to predict the power output from a geothermal plant with a high degree of accuracy.
It is suitable for the smallest houses to be the largest commercial spaces.
30-60% saving on heating and 25-50% saving cooling.
Moving heat that already exists as opposed to making new heat is generated.
It does not need cost fluctuations determined by gas and oil prices.
Mostly underground for a minimal landscape footprint.
The technology behind energy will only continue to improve efficiency.
Long lifespan around 25 years for indoor components, 50+for underground loop system

Cons OR Disadvantages of Geothermal Energy:

In today, Only a few sites have the potential for geothermal energy.
The total generation potential of this source is too small.
The installation cost of a steam power plant is very high.
This energy is always a danger of eruption of the volcano.
Energy fluid needs to be pumped back into the underground reservoir which is faster than it is depleted. Management is required to maintain sustainability.
Gases are released into the atmosphere during digging.
It may release some harmful gas, and release the poisonous gases that can escape through the holes drilled during construction.
Damage to underground loops like tree roots, rodents, etc can be difficult and costly to repair.
It is discharged into the earth could include sulfur dioxide and silica.
The big drawback of geothermal energy is that it is location-specific and earth surface.
Geothermal energy is produced are far from markets or some cities in the country, where it needs to be consumed.
There is no guarantee that the amount of energy that is produced will justify the capital expenditure and operations costs.
Geothermal energy runs the risk of triggering earthquakes.
An expensive resource to tap into, with high upfront costs ranging from around $2-$7 million for a plant with a 1-megawatt capacity.
These energy using wells requires an incredible usage of water.
Fewer installer than standard HVAC and thus less competition.
Electricity is still needed to operate heat pumps.

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Difference between quality assurance and quality control

Quality assurance and Quality control are basic two terms that are often used interchangeably. The main difference between these two is, Quality assurance is activities and responsibilities cover virtually all of the quality system in one fashion or another, while quality control is a subset of the QA activities. This page will explain the difference between Quality assurance ad quality control to better understand this topic.

Definition of Quality Assurance:

Quality assurance refers to the process used to create the deliverables and can be performed by a manager, client, or even third-party reviewer. process checklist, project audits, and the methodology and standard development.

Definition of Quality Control:

Quality control is referred to as quality-related activities associated with the creation of some of the project's deliverables. Quality control is used to ensure that deliverables are of reasonable quality and are complete and accurate. Deliverables peer review, inspection are the example of quality control.

Difference between Quality Assurance and Quality Control:

Quality assurance is a process that deliberates on the assurance that quality requests will be achieved, while quality control is a process that deliberates on fulfilling the quality request.
A Quality assurance aim is to prevent the defect, A quality control aim is to identify and improve the defects.
Quality assurance is the technique of managing quality, while Quality control is a method to verify the quality of the corrective tool.
Quality assurance does not involve executing the program, while Quality control always involves executing the program.
Quality assurance makes sure that you are doing the right things to happen. Quality control makes sure that the results of what you have done are also what you expected.
All team members are responsible for Quality Assurance, while the testing team is responsible for quality control.
Quality Assurance means planning for doing a process, while Quality control means action for executing the planned process.
QA is the process to create the deliverables, QC is the process to verify that deliverable.
Verification is an example of Quality assurance, Validation is an example of Quality control.
Quality Assurance is process-oriented techniques, while Quality control is product oriented.
Statistical techniques used on QA is known as statistical process control, statistical techniques used on QC is known as statistical quality control.
Quality assurance is responsible for the full software development life cycle, while quality control is responsible for the software testing life cycle.
Quality assurance defines standards and methodologies to follow in order to meet the customer requirement, quality control ensures that the standard is followed while working on the product.

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