The Advantages of the Evaporative Air Conditioning

March 11th, 2021 by dayat No comments »

Air conditioning plays an integral role in today’s world, especially when the effect of global warming is spreading so fast. But the electricity bills are becoming unaffordable for most people. So, there’s another technique to manage this and yet have the comforts of air conditioners.

Advantages of evaporative cooling

The evaporative cooling technologies provide enough cooling comforts, and you would not have to worry about the electricity bills. They also help to manage the environmental impacts. Air conditioning enhances the global warming effects in the atmosphere. But with these evaporative cooling technologies, this is not a problem anymore. They help reduce the global warming impacts, lowering the power consumption alongside. These echnologies involve a transfer process of heat and mass that uses water evaporation to cool air. In this process, a huge amount of heat is transferred from the air to the water. This also ensures the temperature of the air getting decreased.

Types of evaporative coolers

There are generally three categories of evaporative air coolers. The first one is direct coolers, followed by coolers that are indirect. The third category is a mixture of the above two coolers mentioned above; it is a combined direct and indirect cooler technique. In direct coolers, the working fluids that are the air and the water, are in direct contact with each other, while in the indirect coolers, the working fluids that are the air and the water are separated by a plate or a surface. The direct technique of cooling is known as the most ordinary and easy way of cooling. It uses the technique of cooling the air by converting the heat sensed by air to latent heat.

Direct cooling can be further classified into active direct cooling and passive direct cooling. The basic principle of indirect cooling is decreasing the heat sensed by air without changing the humidity. This gives it a clear advantage over direct cooling. A basic indirect evaporative cooler will consist of an exchanger of heat, a small fan, distribution lines of water, and a water pump with the tank.

The indirect cooling can be further classified into wet-bulb temperature indirect cooling systems and sub-wet-bulb temperature indirect cooling systems. The wet-bulb temperature indirect cooling consists of a packaged unit of the flat-plate stack, cross-flow exchanger of heat. Indirect cooling is made to overcome the disadvantages and downsides of the direct evaporative cooling systems.

Effectiveness of evaporative cooling

Using evaporative cooling systems is one of the most environmentally friendly options in today’s world. The technique of using water for evaporation to decrease the temperature of the air is one of the most efficient ways of cooling. In comparison, it gets clear that the indirect cooling systems are ranked a little higher than the direct cooling systems in terms of economy as the former is more economical than the latter and consumption of energy as the former uses less amount of energy than the latter. However, another effective option is to mix the best parts from the direct cooling systems and indirect cooling systems and create a whole new system altogether, which is known as the combined direct-indirect evaporative cooling system.

Tips to Keep in Mind While Hiring a Plumber

February 11th, 2021 by dayat No comments »

Hiring a professional plumber is not an easy task at all. It is a highly competitive field of job as many workers opt for this line. So, choosing the best plumber is a rigorous task.

Professionalism

Always look for professional plumbers before hiring them. Confirm whether the plumbers have taken professional training from trade schools or colleges for plumbing.

Get a high school degree or diploma.

The first step towards hiring a plumber is to check whether he has a high school diploma and a good knowledge of mathematics and the other branches of science, including computers. The drafting courses and the ones that involve blueprint reading are also essential to become a professional plumber. There is high competition in the plumbing field, so checking all those factors are essential for hiring a professional plumber. The apprenticeships offer them on-the-job learning beneficial for becoming experienced in the field of plumbing. Generally, an apprenticeship program lasts for 4 or 5 years and, on completing the apprenticeship, they will get a plumbing license. So, apprenticeship is one factor that should be a must for hiring plumbers. When applying for a plumber’s apprenticeship, they might need to give an aptitude test whose main aim is to check their aptitude skills. This means having an apprenticeship also is a validation of their aptitude skills. This should be kept in mind before hiring a professional plumber.

Vocational courses in plumbing

One does not need to check whether the plumbers have any college or university degrees before hiring. But completing a specific course through any accredited trade school or a technical college is recommended. As mentioned earlier, plumbing is a highly competitive field of a job, so if they have completed any coursework early on, then they get the advantage of being chosen among so many people. Some of the apprenticeships regarding plumbing even demand any coursework before they apply for the same. While doing the courses, many schools will help them find big apprentice offers or works in a reputable industry, or even better at a plumbing company. So, one can even contact such trade schools or technical colleges to get the best plumbers with professional skills and considerable experience in the same field.

Whether they have a license

Many states and industries demand a plumber’s license. Once they have entered the classroom courses and grabbed the apprenticeships, the next crucial step is to get a license for the same. Even though the requirements to get a license vary from state to state, they require a minimum number of working hours to pass the exam that will provide you the license. A person needs to register for an exam. Once they have passed this exam, they will be provided with a license which will be official proof of becoming a professional plumber. Before hiring a plumber, makes sure they have a registered license to show their professionalism.

Look for the plumbing mastery.

The next step after checking the license is to check whether they have certificates of the different courses they have done to polish their plumbing mastery. The areas that should be checked are energy efficiency, inspection testing, etc. This will help you to choose the best plumber from this competitive field.