What Are The Uses Of Cold Rooms?

The use of cold rooms is very wide at an industrial level. A cold room of this type is a refrigerated enclosure using a vapor compression system maintained at low temperatures. To guarantee this sufficiently low temperature, walls and enclosures with very good insulating properties are used.

Applications In The Industry

Cold rooms are widely used in all types of sectors, highlighting, for example:

Food Industry

They allow food to be maintained and preserved in adequate conditions. They are used in the field of the dairy and agricultural or fishing industry, among others.

Pharmaceutical Sector

Most of the compounds used in the field of pharmaceutical or biotechnological industry require low storage temperatures.

Components Of Industrial Cold Rooms

Industrial cold rooms are made up of two basic components: firstly, what constitutes the cold room itself (enclosure) and, secondly, the cold production equipment. Furthermore, there are other additional systems such as lighting and control, for example.

The Cold Room: Materials And Characteristics

The chamber is made up of enclosures, built to measure or use prefabricated materials, which are characterized by having very low conductivity, preventing the transmission of heat to the interior. The proper thickness of insulation depends on factors such as the difference in outside and inside temperatures, or the maximum allowable heat flux. The use of prefabricated panel systems for cold rooms is becoming more and more common due to their ease of use and installation and because they comply with the best quality standards and have elements that improve performance and energy efficiency. This includes adequate vapor barriers. These barriers prevent the appearance of condensation on the insulation.

What Are The Uses Of Cold Rooms?

Cold Production And Distribution System

The chambers use cold production systems based on vapor refrigeration cycles, similar to those used in refrigerators or other cooling devices. The generated cold can be distributed using air or other fluids such as cold water.

Energy Efficiency In Cold Rooms

Cold rooms are one of the points with the highest energy consumption within industries and it is essential to have a design and maintenance that guarantees the best possible energy efficiency. For this, it is essential to follow some basic design and maintenance criteria, which must include all the components of the chamber and also the regulation and control systems.

Adequate And Highly Efficient Cold Production Machines

The size and power of cold production machines must follow the real needs of the chamber and it is also important that the compression ratio (ratio between the condensation and evaporation pressures) be as low as possible. High-efficiency, variable-speed fans should be used, and high-efficiency coolant systems should be chosen. In addition, an adequate preventive maintenance protocol is essential.

Final Words

A careful design of the cold room as a whole, as well as having adequate maintenance operations, is the best guarantee to reduce the energy consumption of the installation, increase its useful life and also guarantee the best temperature and humidity conditions inside. If you are looking for a good cold room supplier in Nigeria, Pygar Group is a good place to look. With years in the industry, Pygar has garnered quite a reputation for itself when it comes to providing customers with cold rooms.

Blog - 11/01/2022

What Are The Uses Of An HVAC System?

The meaning of the acronym HVAC is Heating, Ventilating, and Air Conditioning. But what uses and applications do these systems have?

What Is An HVAC Ventilation System?

An HVAC system is used to renew and treat the air within an environment in order to provide it with humidity, temperature, and health conditions (improving its purity and conditioning it to achieve air suitable for breathing) that are comfortable for people.

How Does An HVAC System Work?

The operation of the HVAC is as follows:

The system contains a gas that, when subjected to pressure, is compressed and its temperature increases, thus heating the duct through which it runs and giving off heat. The subsequent cooling occurs slowly and then, the remaining liquid is expelled in the form of gas through ventilation grills. In the passage from the gaseous state inside until the expulsion, it absorbs the internal or external heat of the environment. This process works without interruption if the system is activated.

HVAC Systems Applications

The uses of an HVAC system are different, depending on the type of unit we are talking about. The environment in which it is installed and the activities carried out there determine both the type of system and the actions it performs.

The actions that an HVAC performs are:

Air heating
Ventilation for air renewal
Air cooling
Indoor air movement
Distributing fresh air from outside without drafts
Humidification/dehumidification of the environment
Filtering the air to remove dust, fumes, and all kinds of solid particles suspended in the air.

HVAC In Hospitals

HVAC systems play a very important role in hospitals. They are responsible for maintaining comfortable climatic conditions through humidity and temperature control and maintaining a clean, germ-free environment. Its presence is relevant due to its ability to increase the comfort of patients and medical teams while reducing the risk of spreading diseases. As these are particularly critical environments, the design of HVAC systems in hospitals acquires special importance.

Pharmaceutical Industry HVAC Systems

When we talk about the pharmaceutical industry, there are strict regulations regarding the conditions of the work area and the performance of the air equipment. The sector is obliged to comply with specific thermal parameters in manufacturing, packing, distribution, and storage. This is because the raw materials of its compounds, such as microorganisms or biomolecules, are very sensitive to fluctuations in temperature and air humidity. The control of both environmental factors is crucial to ensure the success of operations with pharmacological products. These air treatment systems for the pharmaceutical industry are not only applied for the protection of the product but also for the protection of personnel. Through its use, safe air is guaranteed for the equipment that operates in R&D laboratories and in the production area.

Final Words

If you are looking for an HVAC system in Nigeria, look no further than Pygar Group! Pygar Group is a pioneer in offering ventilation systems to industries across Nigeria. For more details, visit https://pygargroup.com!

Blog - 09/22/2022

What Are The Uses Of An Air Handling Unit?

What Do We Mean By An Air Handling Unit (AHU)?

Air Handling Unit (AHU) is an installation that allows air treatment and environment management. This type of unit belongs to the HVAC family and is made up of different modules that house the elements that intervene in the purification, air conditioning and renewal of air flows within a specific space. The AHU system is highly configurable due to its modular composition.

Operation Of An Air Handling Unit

The work of an AHU consists of supplying the air that it has treated inside to the spaces where it operates. As we have mentioned, its modular configuration makes the system change its functionality depending on the components that are a part of the unit.

Where Is An AHU Placed?

AHUs are placed in closed spaces where there is usually traffic of people or they need a greater cleaning in their interior environment. These locations are usually health centers, offices, shopping centers, or theaters, since they have specific regulations regarding ventilation and air treatment. That said, it also has the possibility of having residential applications.

Applications Of Air Handling Units

AHU installations are used in a variety of cases, always with the same objective, to promote ventilation. We can see these systems in large spaces with a high density of people who need air conditioning, such as auditoriums or restaurants. We can also find them in hospital areas and rooms with a delicate environment such as laboratories or operating rooms, in which comfort and well-being are critical. Lastly, these AHUs can be found in air-conditioned areas with terminal equipment that lack ventilation and require the renovation of the environment.

Air Handling Unit in Nigeria

AHU In Hospitals

These air treatment systems are chosen for use in hospitals and medical centers for their effectiveness and energy efficiency. The ventilation flow is adjustable through the measurement of CO2 levels and the thermal conditions of the premises. The possibility of recovering part of the thermal energy of the expelled air and of carrying out free-cooling with the outside air add to its energy efficiency character.

Air Handling Units For Operating Rooms

For the treatment of air in operating rooms, the use of AHUs heated only by air is recommended since in this type of use, it is required that all the air renewal comes from the outside in order to guarantee the absence of contaminants contained in the interior air.

Air Handling Units For MRI Rooms

For the air conditioning and ventilation of these types of rooms, AHU equipment and other facilities are used, such as the quench tube (helium expulsion). The installation of equipment must be taken into account both for control rooms and for technical rooms and examination rooms.

Final Words

If you are looking for an Air Handling Unit (AHU) in Nigeria, check out Pygar Group! Pygar Group is a pioneer in HVAC systems and AHUs for residential and commercial purposes. For more details about the company and its products, visit https://pygargroup.com!

Blog - 08/17/2022

kirloskar-chillers-prodigy-air-cooled-img1-1.600x360

What Are The Uses Of Air-Cooled Chillers?

An air-cooled chiller is a machine designed to cool water, consisting of a compression refrigeration cycle whose condenser is cooled by air that is driven by powerful fans.

Air-Condensed Chiller And Its Operation

This is how an air-cooled chiller works:

An air-cooled chiller consists of a compression refrigeration cycle. The basic components of the refrigeration cycle are the evaporator, compressor, condenser, and expansion valve. The refrigerant found in the evaporator is sucked by the compressor, causing a low pressure at this point. Since the pressure in the evaporator is low, so is its temperature. Moreover, since the refrigerant has a low temperature, it can cool a flow of water that passes near the evaporator. The heat of the water that is cooling passes to the refrigerant. In this way, the water becomes ice water and the refrigerant transforms from a liquid to a gaseous state.

Now, the refrigerant is in the evaporator, separated from the water; these two fluids never mix because they are located in different pipes. The water goes out to heat the buildings or goes to the machines that need to be cooled. The sucked refrigerant enters the compressor where its pressure increases and is directed toward the evaporator. The refrigerant reaches the condenser where it is cooled by ambient air, which is blown through powerful fans. The cooling of the air in the condenser causes the refrigerant that arrived in a gaseous state to return to its liquid state. After that, the refrigerant leaves the condenser at near room temperature, at high pressure, and in a liquid state. The liquid refrigerant reaches the expansion valve where it loses its pressure. Now, the refrigerant has low pressure which allows it to recover its low temperature. The refrigerant finally enters the evaporator to continue the cycle.

air cooled chillers in nigeria

When Is The Purchase Of Air-Cooled Chillers Recommended?

40% of currently installed air-cooled chillers have less than 100 KW. Moreover, 70% of currently installed air-cooled chillers are less than 200 KW. The purchase of air-cooled chillers is recommended in the following instances:

When the appropriate water resource is not available
When space is limited for installation
If constant maintenance personnel are not available
The electrical consumption of chillers with air condensers is higher, especially in environments with low relative humidity and high temperature
The best-selling air-cooled chiller is the one with a scroll compressor
Potential applications for air-cooled chillers include offices, schools, small shopping malls, and medical centers
Air-cooled chillers are fully factory assembled, making installation easier and cheaper
Multiple chillers can be used together to meet higher cooling requirements
Air-cooled chillers are manufactured by two types of compressors - scroll and screw
Scroll compressors are often used on smaller air-cooled chillers, up to approximately 140 tons of capacity.
Air-cooled screw compressor chillers are available with capacities starting at approximately 80 tons.

Conclusion

Looking for air-cooled chillers in Nigeria? Get in touch with Pygar Group today for high-quality air-cooled chillers at cost-effective rates. For more details, visit https://pygargroup.com!

Blog - 07/30/2022

What Are The Uses Of Air Conditioning Systems?

The operation and installation of an air conditioning system have the purpose of cooling and dehumidifying the interior space of a home or a public building. To do this, the vapor compression cycle is used, which consists of circulating a refrigerant material inside the system that notably increases its temperature when it is compressed and cools quickly when it does the opposite. That is when it expands.

The outer part of an air conditioning system is called the condensing unit and contains on one side the compressor that consumes most of the energy and the condensing coil. The interior mechanical equipment, called the air control unit, contains the evaporator coil, the interior blower, and the extension or regulating valve. The controls and ducts through which the cold air circulates complete an air conditioning system.

Ventilation And Indoor Air Quality

Adequate conditioning of the interior environment of a home through an air conditioning system that cools the rooms in summer must be accompanied by a ventilation system that guarantees the health conditions and the quality of the interior air throughout the year. These systems must renew polluted air and also reduce excessive humidity levels. Therefore, the construction of inefficient homes in which the air is filtered should be avoided and, on the contrary, the installation of hybrid or mechanical ventilation systems should be promoted.

What Are The Uses Of Air Conditioning Systems In Nigeria?

This requirement is due to the fact that in old buildings, ventilation is produced by natural ventilation and air filtration. However, these leaks are not a controllable source of the amount of air renewed. For example, air infiltration is higher during cold and windy periods, and is often quite low during hot periods.

With mechanical ventilation systems, it is possible to extract polluted air from humid rooms (kitchen, bathrooms, and toilets) and drive new, clean and filtered air into dry areas: living room and bedrooms. These systems also make it possible to dilute the polluting elements that are produced regularly inside a home, such as humidity, the CO2 produced by the metabolism of people when carrying out their activities, as well as other suspended elements produced by the building materials, construction, furniture, or finishes of a home.

To this aspect, we must add the advantages of installing a mechanical ventilation system incorporating fans with heat recovery. This system allows the heat of the interior environment to be conserved in winter and cooled in summer. For this, the heat exchangers recover 92% of the extracted air so that the air is introduced inside the house at 19ºC when the temperature gradient between the outside and the inside is 15ºC. In summer, the airflow is introduced at 22ºC, when the outside temperature is 30ºC and the inside temperature is 21ºC.

Final Words

If you are looking for a high-quality air conditioning system in Nigeria, your search ends at Pygar Group. Pygar Group is a leader when it comes to HVAC systems, ventilation systems, cold rooms, and much more. For more information on their products and services, visit https://pygargroup.com!

Blog - 07/30/2022

Ventilation System In Nigeria

Ventilation System In Nigeria
Mechanical ventilation systems have become quite popular in Nigeria in recent times as they serve an excellent purpose in large commercial buildings. They are essentially designed to cool and heat the air and to circulate as well as draw in outdoor air. That said, ventilation systems can also lead to indoor pollution and result in air problems inside the house if they are not maintained, operated or designed properly. In addition to that, ventilation systems can also spread harmful and unwanted contaminants inside the premises that have multiplied in humidifiers, air conditioners, inside ventilation ducts, dehumidifiers and cooling towers.

Ventilation systems are a must-have around compaction installations as they help in controlling and collecting the gases that get squeezed out during the process of compaction. They also collect any particulate matter generated during this process. The treatment and ventilation system consists of the following:

A negative pressure enclosure that helps in the prevention of leakage of particulates and potentially radioactive gases.
An activated charcoal absorber bed is also present if some radioactive gases such as iodine are there.
A multiple stage of filtration that comes with a fine filter, HEPA filtration system and pre-filter on the exhaust or supply to remove particulates

Why Choose Pygar Group To Buy Ventilation Systems In Nigeria?
Pygar Group is a renowned name when it comes to buying heating and cooling systems in Nigeria. We don’t just provide heating and cooling products for residential premises but also for commercial places. If you have been wondering why you should choose Pygar Group to buy a ventilation system in Nigeria, here are some compelling reasons:

Quality Products
The best thing about choosing Pygar Group to buy ventilation systems is that we deliver quality and premium products to our customers. We take great pride in the high-quality goods we sell and make sure that our customers are also happy with our products and services.
Experienced Technicians
Pygar Group has a team of qualified and experienced technicians who will not only help you with the installation work but also make sure that you understand the proper operation of the system so that it works efficiently to serve you in the long run.
Excellent Customer Service
The customer support team at Pygar Group is one of the very best. We take the queries, questions, concerns and complaints of our customers very seriously and strive to deliver prompt and favorable responses in a short turnaround time. Our customer support team works round-the-clock and is at your disposal whenever you have any questions.
Competitive Prices
Finally, we are known in the market to provide our customers with good-quality products at cost effective prices. The affordable prices do not mean that we compromise with the quality of the products. You can count on efficient ventilation systems that do not burn a hole in your pocket.

For more details on ventilation systems and to make a purchase, visit https://pygargroup.com/ventilation-system-in-nigeria/! You can also get in touch with our customer service team to know more about our various products and services in detail.

Blog - 08/07/2021

Air Conditioning System In Nigeria

The importance of air conditioning systems in our lives cannot be disputed. They don’t just help in keeping the heat at bay but also make for an excellent investment considering their innumerable benefits. If you have been thinking of buying an air conditioning system in Nigeria, choosing one from Pygar Group can stand you in good stead. However, before we go into the details of why Pygar Group stands out, here are the reasons why investing in an air conditioning system can be a good idea for you!

Better Air Quality
The best thing about buying an air conditioning system is that you can expect fresher and cleaner air at all times. Air conditioners filter and circulate air, eliminating mold and pollutants from the air. It can be especially helpful for individuals who constantly suffer from allergies. Who doesn’t love clean indoor air?
Cooler Temperature
With a rise in the level of mercury, the body temperature steadily rises, and that not just affects how we feel but also our levels of productivity and general well-being. Air conditioners help in maintaining a cool environment, normalizing our heart rates and blood pressure.
Better Sleep
Heat causes high blood pressure and high heart rate, which can also irritate us. This makes it that much harder to get a good night’s sleep as our core body temperature is not at an optimum level. A cool environment with a maintained temperature is key to sleeping soundly and uninterruptedly.
Protects Furniture
Humidity and heat are the two worst enemies of your furniture. Wood and leather can begin to rot in high temperatures with extreme humidity. Moreover, if you have any fabric in your house that is susceptible to mold, it will be another cause of concern because humidity will lead to a damp environment, which is a breeding ground for mold.

This is just the tip of the iceberg when it comes to the many advantages of installing an air conditioning system in your house or office. Besides these pros, air conditioners also prevent the overheating of your electronic devices, which is a definite bonus.

Why Choose Pygar Group To Buy An Air Conditioning System In Nigeria?

Pygar Group is a reputed name in Nigeria when it comes to heating and cooling systems. We sell high-quality air conditioning systems at cost-effective prices. When you choose Pygar Group to buy an air conditioning system in Nigeria, you can rest assured that you will receive the best in class, premium products with exceptional features, and good feedback. In addition to that, our products come with a warranty period, so if you are ever unhappy with your purchase or you face a technical issue of any kind with the system, one of our technicians will be happy to visit you for on-site troubleshooting.
Our air conditioning systems come backed with the recommendation of former customers who loved the sophisticated designs and efficiency of our products. For more details and to make your purchase.

Blog - 08/03/2021

kirloskar-chillers-prodigy-water-cooled-img1_copy.600x360

Air-Cooled Chillers In Nigeria

Air-cooled chillers have been present in Nigeria for a long period already. They are regarded as a well-proven and useful technology when it comes to air conditioning systems. An industrial air-cooled chiller comprises a refrigeration system. This system works by cooling down the fluid in tandem with the air handler system of a facility. In short, air-cooled chillers are popular in Nigeria for an excellent reason - they work!

When it comes to providing customers with top-notch air-cooled chillers in Nigeria, Pygar Group stands at the top with popular brands like Kirloskar chiller. We have been in operation for several years now and we strive to provide our customers with premium products and services to ensure their comfort and safety at the same time.

Why Should You Buy An Air-Cooled Chiller?

There are several advantages to buying an air-cooled chiller. Some of them are as follows:

No cooling towers
Chemical costs avoided
Low maintenance costs
In case of a disaster, you will not have to deal with any kind of water problems.
No wastage of water
Better environmental stability
You can avoid water costs, especially in cities.
Easier to control and operate

air cooled chillers in nigeria

That said, unfortunately, some people still believe that air-cooled chillers are not efficient. However, that is not the case at all. Air-cooled chillers are extremely energy efficient and have been known to be super reliable in various countries throughout the world, including Nigeria. Hence, buying an air-cooled chiller can stand you in good stead and can be a good long-term investment in the bigger scheme of things.

Why Choose Pygar Group To Buy An Air-Cooled Chiller?

Air-cooled chillers work by absorbing heat from processed water. The system then transfers this heat to the air surrounding the chiller unit. Air-cooled chillers are usually used in places where people are not overly concerned with the additional heat discharged by these systems. Moreover, it can often be more practical to use this excess heat for warming a plant in winters, which can help in saving money.

We, at Pygar Group, are renowned for our products and services in Nigeria. We provide all our customers with high-quality products for their comfort and overall satisfaction. If you have been looking for a top-notch portable or central air-cooled chiller in Nigeria, we are the right company to choose. We are a thriving company that believes in customer satisfaction and providing our customers with flexible cooling and heating solutions. We maintain a dependable, rugged and cost-effective product line to ensure that we meet the needs of all our customers without an exception.

Over the years, the application support and sales teams of Pygar Group have learned to offer customized solutions to the requirements set by our customers. Hence, regardless of your budget or the specifications you are looking for, we can help you out in no time.

Visit Air Cooled Chillers for more details and to make a purchase! If you have any further queries, please do not hesitate to get in touch with our customer support team. We would be happy to hear from you!

Blog - 07/04/2021

Hitachi Rooftop package units in Nigeria

Rooftop Package Unit In Nigeria

Rooftop package units are incredibly popular in Nigeria because their design has proved to have countless applications in the country. These package units have a super self-contained design which makes it effortless for individuals to install as well as operate them. We, at Pygar Group, take pride in the successful installation of rooftop package air conditioners in a number of setups such as factories, steel manufacturing companies and auditoriums.

Why Should You Get A Rooftop Air Conditioning Unit?

Rooftop air conditioning units come with a host of advantages for users. Some of the most useful ones are as follows:

You won’t need a split unit: The best thing about a rooftop package unit is that all its components come in a single cabinet. Hence, it helps in saving a lot of space and you can also eliminate the problem of excessive noise. This helps you have a quieter and more comfortable workspace without any hassle.
There are no space limitations: Another great advantage to having a rooftop package unit in Nigeria is that you can easily install multiple units on your roof according to the amount of air conditioning required by your business without having to compromise with your workspace. These units will stay well out of sight, so you can get as many installed as you like.
These units help in controlling humidity: They help balance out the humidity in the air at home or at your place of work. Rooftop package units come with the ultra-modern humidistat technology, which helps in controlling the level of moisture inside the premises, introducing fresh air indoors for a comfortable working environment.

You can get the unit installed as a heat pump: It is also possible for you to get the unit installed as a heat pump for those chilly winters. As a result, you won’t have to sacrifice any space and you can stay warm during winter.

Rooftop package units in Nigeria

Choose Pygar Group To Buy A Rooftop Package Unit In Nigeria

Pygar Group is a renowned name in Nigeria when it comes to buying rooftop package units. We offer some of the most cutting-edge and premium rooftop package units in Nigeria. The reason to choose us to buy rooftop package units is not just because of our quality products but also our unparalleled services. All our technicians are super knowledgeable and experienced when it comes to installing these units in a variety of locations. It is important to remember that the installation of rooftop package units requires the expertise of professionals in the field. This is just what Pygar Group offers its customers.

Do not trust any person or team to do this job for you! We are licensed commercial experts and are well-known to provide customers with the finest commercial cooling and heating products in Nigeria. Hence, it will stand you in good stead to choose our products and services for a comfortable heating and cooling experience throughout the year.

for a comfortable heating and cooling experience throughout the year. Visit https://pygargroup.com/rooftop-package-unit-in-nigeria/ to know more about our rooftop package unit services and make a purchase today!

Blog - 07/04/2021

Horizontal Type Floor Mounted Air Handling Units in Nigeria

Air Handling Unit In Nigeria

An Air Handling Unit (AHU) is usually installed in large volumes in places like auditoriums, malls, indoor stadiums, theatres, and churches. They are also utilized as a part of specialized requirements in general hospitals, ICUs, pharmaceutical industries, operation theatres, and special laboratories where rooms are maintained by adding Fine Filters and Hepa Filters to ensure clean air and remove dust particles up to 0.03 microns. Air handling units also help in maintaining the level of humidity in a room.

We, at Pygar Group, are known as leading providers of air handling units in Nigeria. We have successfully completed a number of projects in the country involving AHUs in the pharmaceutical industry, food packaging industry, hospitals, plastic factories, and large auditoriums.

Air handling units come in a variety of shapes and sizes. When choosing an air handling unit, it is essential to consider a number of factors such as efficiency, performance, space constraints, and maintainability. Moreover, there are a number of air handling units in the market, and hence, it is important to understand the right one for your needs.

Air Handling Units in Nigeria

Why Choose Pygar Group To Buy An Air Handling Unit In Nigeria?

As mentioned above, there is a lot of information to gain and a number of aspects to understand before buying AHUs. At Pygar Group, we understand the technicalities and criteria to help select the perfect AHU for a customer.

Here is why you should consider us for your purchase of an air handling unit in Nigeria!

Informed Professionals

Pygar Group has informed and experienced professionals in its team. They are all trained in the field and have years of experience under their belts. We help you choose the right air handling unit for your specific needs.

Technically Sound Advice

As mentioned above, our experience and wealth of knowledge allow us to offer technically sound advice to all our customers. We can find the most energy-efficient system suited to your precise needs.

Cost-Effective Products

While we believe in providing our customers with reliable and efficient products, we also strive to make them cost-effective because we do not want to put too much burden on your pockets. Hence, you can count on getting the best air handling unit within your budget and without putting a dent in your bank account.

Value For Money

We ensure that our customers get value for their money not just through our modern products but also through our exemplary services. Hence, you can count on an unparalleled shopping experience where we cater to your every need.

Loyal Customers

Finally, Pygar Group prides itself on its loyal customers who always leave glowing reviews of our products and services. Our website is filled with positive feedback from happy customers who have availed of our services time and time again. Therefore, you can rest assured that you will get 100% genuine products and timely delivery.

Get in touch with us now at https://pygargroup.com/air-handling-unit-ahu-in-nigeria/ to enjoy impeccable products and services. Visit the link above for more inquiries!

Blog - 07/04/2021