How Does China roof mounted bus air conditioning system Supplier Work?

This article introduces in detail the components of bus aircon and the working principles of each part. I try to make the content of the article easy to understand. I believe you will gain a lot from reading this article carefully.

You can find more information on our web, so please take a look.

Why is the bus aircon system installed on the roof mounted?

There are three main benefits of the roof mounted bus air conditioning system.

1. Higher space utilization: Installing the air conditioning on the roof can make full use of the external space of the bus. In this way, the bus can carry more passengers, more seats, and a better experience.

2. Better heat dissipation: Installing the air conditioning on the roof of the bus can make full use of air convection. Improve the heat dissipation effect and ensure the efficiency and stability of the air conditioning system.

3. More convenient installation and maintenance: Installing the air conditioning on the roof is easy to lay and fix pipes. In addition, the roof position is also easier to access when performing maintenance or repairs.

What are bus aircon parts?

A complete bus air conditioning system is composed of multiple parts. The bus aircon parts include a compressor, electromagnetic clutch, condenser, liquid reservoir, filter dryer, solenoid valve, expansion valve, evaporator, and fan.

I'll go into detail on each parts individually. The combination of their functions is the working principle of bus aircon.

bus air conditioning system diagram

Parts details - How does a bus aircon system work?

' Bus Air Conditioning Compressor

Function: Inhale refrigerant in gaseous form and then compress it. The compression process will increase the temperature and pressure of the refrigerant and turn it into a high-pressure and high-temperature gas form.

Bock traditional compressor SANYO electric compressor

' Bus AC Electromagnetic Clutch

Function: Receive electrical signals from the bus aircon control system to control the start and stop of the compressor.

' Bus Air Conditioning Condenser

Function: Heat exchanges the high-temperature and high-pressure gaseous refrigerant discharged from the compressor with the surrounding environment (usually air or water), and releases heat to the environment. After the heat exchange, the refrigerant cools down and condenses into a liquid state.

' Bus AC Reservoir

Function: Store liquid refrigerant. It is used to compensate for changes in refrigerant flow caused by changes in operating conditions in the air conditioning system. Changes in operating conditions such as start-up, storage and cooling phases after thawing.

' Bus AC Filter Drier

Function: Remove moisture and impurities from refrigerant. Effectively prevent them from causing damage to various components and extend their service life.

' Bus AC Electromagnetic Valve

Function: Control the flow of refrigerant in the air conditioning system. Specifically, it can interrupt or allow refrigerant flow to the evaporator by closing or opening it.

' Bus AC Expansion Valve

Function: It automatically adjusts the flow of refrigerant into the evaporator according to the temperature and pressure of the refrigerant at the evaporator outlet. It ensures that the refrigerant in the evaporator can fully evaporate.

' Bus Aircon Evaporator

Function: Liquid refrigerant evaporates in the evaporator. The heat required for evaporation comes from the surrounding air. This allows the air to be cooled before entering the bus.

' Bus Aircon Fan

Evaporator Fan Function: Inhales the cooled air from the evaporator and blows it into the interior of the bus to provide a cool environment for passengers.

Condenser Fan Function: Heat dissipation. When the gaseous refrigerant passes through the condenser, it emits a large amount of heat. The high-speed rotation of the fan introduces air for cooling. Eventually the refrigerant changes from gas to liquid.

Evaporator Fan Condenser Fan

' Bus Aircon Refrigerant

Our bus aircon refrigerants use R134A and R407C. They are widely used environmentally friendly refrigerants. They are environmentally friendly, non-toxic and have good cooling effect.

R134A R407C

What are the different types of bus air conditioning?

Bus air conditioning is mainly divided into two categories. They are electric bus aircon and traditional fuel bus aircon. They are suitable for different aircon bus due to their different power sources.

Electric bus aircon can only be installed on pure electric buses. This type of aircon requires a very high voltage to operate. Usually between 280v-750v. Such voltage requirements can only be met by the power batteries of pure electric buses. But this kind of aircon bus is very environmentally friendly and energy-saving, and the noise is relatively low. The ride experience brought to passengers is very good. New aircon buses like TATA Motors all use aircon like this. Click to browse project cooperation stories.

Traditional fuel bus air conditioner is installed on diesel buses. This type of aircon has wider applicability. There is no need to consider the voltage range. Just choose the appropriate cooling capacity according to the length of the bus. Then connect the bus's engine and bus aircon compressor through a belt. When the aircon needs to be operated, the bus engine can drive the aircon to work. The cooling capacity of this aircon is also very good. The riding experience on fuel aircon bus is also very good now.

Who makes bus air conditioners in China?

Our brand is TKT HVAC. We were established in . It is China's leading bus air conditioner manufacturers. In the field of electric buses, we are the top 3 suppliers in China. Important international partners include TATA Motors, Olectra, Switch Mobility, Marcopolo, etc.

We have experience in OEM cooperation with Fortune 500 companies. We are a reliable bus air conditioner suppliers. If you need to purchase bus aircon system and bus aircon parts. Welcome to leave a message to inquire about bus air conditioner price. The larger the purchase quantity, the more favorable the price.

If you need to see more complete bus air conditioning system pdf. Welcome to contact our sales. They will send beautiful materials to your .

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Overview of Roof Mounted Bus Air Conditioning System

This article will explain in detail the bus air conditioner installed on the roof from a professional point of view. The benefits of installing it on top of a bus are revealed from a scientific point of view. What are the common classifications of bus air conditioners? And how to judge high quality Roof Mounted Bus Air Conditioning System, etc.

Do you really understand why bus air conditioners are installed on the roof of the bus?

I summarized the 3 most important reasons.

With competitive price and timely delivery, SONGZ sincerely hope to be your supplier and partner.

1, Air Properties:
I believe we must have heard of hot air balloons. Why can hot air balloons float in the air? It is because the mass of hot air is lighter and the mass of cold air is heavier. Therefore, in the bus space, hot air will be more concentrated in the upper part. Therefore, the installation of the bus air conditioner on the roof will be more conducive to the discharge of hot air and will greatly enhance the cooling efficiency of the air conditioner.

2, Easy to Install, Maintenance and Repair:
Any equipment has its own use life, the bus air conditioning is no exception. If installed on the roof of the bus, either to replace the new air conditioner later, or inspection, maintenance will be more convenient, because you do not need to disassemble the main structure of the bus. It can be done directly by having a technician go to the top of the coach.
PS: High-quality coach air conditioners last longer and can reduce the cost of post-care. (This point is often overlooked)

3, Better Riding Experience:
Install the air conditioning in the top area of the bus exterior, can better reduce vibration and noise, bringing a better experience for passengers. If installed in other areas, will inevitably need to add more costs and technology to solve the problem.

If you need any advice from our experts, please feel free to us with your questions. :

What are the common bus air conditioner classifications?

Roof Mounted Bus Air Conditioning System, usually subdivided into engine bus air conditioning, sub-engine bus air conditioning, and electric bus air conditioning.

1, engine bus air conditioner:
Also known as diesel bus air conditioner or traditional bus air conditioner. Nowadays, the world's buses are still mainly diesel-driven because it is the lowest cost. All buses that rely on engine drive can use this type of bus air conditioner.

2. Sub-engine bus air conditioning:
Basically the same as engine bus air conditioning. The difference is mainly the use of slightly different scenarios. For example, the lack of power in some coach, or the need to park for a long time still running air conditioning and other situations.

3, electric bus air conditioning:
With the deterioration of the world environment, sustainable green energy bus gradually developed. Therefore, the bus air conditioner also needs to use new green energy - electric drive. This kind of air conditioner can only be installed in electric buses, which need buses with enough high-voltage batteries, usually between DC 280V-750V. (For mini buses with particularly small space, a special solution also exists that can barely use 12V/24V truck RV air conditioners)

After understanding this difference, the rest can be based on the specific length of the bus or the number of seats, to choose a different cooling capacity can be.

If you need any advice from our experts, please feel free to us with your questions. :

Appreciation of patented design and details of high quality bus air conditioners

+ Patented core design

With over 20 years of experience, TKT senior engineers have continuously optimized the core design ideas and production process. Our advanced core fabrication process has controlled the copper tube spacing to 21mm (industry common spacing is 25mm), the smaller spacing can accommodate more copper tubes, which in turn increases the heat exchange efficiency by 16%. (Click on image to enlarge)

+ PS. Easy to ignore the details - the core material

The common cores are divided into two structures: parallel flow (pure aluminum) and Cooper Tube and Aluminum Fin. In comparison, the Cooper Tube and Aluminum Fin type is better, as evidenced by the cost of the material. Details of the main advantages:

1'Higher heat dissipation efficiency
Cooper Tube and Aluminum Fin Structure is relatively more efficient in heat dissipation. Because the thermal conductivity of copper is very high, while the specific heat capacity of aluminum is small, coupled with the design of the Cooper Tube and Aluminum Fin type core uses a large contact area of copper and aluminum, so the heat can be transferred to the aluminum sheet faster, and then through the fan and other cooling equipment to dissipate, compared to the parallel flow heat exchanger relatively slow.

2'More environmental friendly and energy saving
Air conditioners with Cooper Tube and Aluminum Fin cores are able to work with lower power compressors for the same cooling capacity due to their higher cooling efficiency. This means that, under the same cooling effect, copper aluminum air conditioning will consume less electricity, with higher economy and energy efficiency.

3'More corrosion resistant
The Cooper Tube and Aluminum Fin core is composed of copper and aluminum, of which the aluminum sheet is made of high purity aluminum, and through a special process, it has better resistance to oxidation and corrosion. This means that after a period of use, the core is less likely to rust, fall off or deform, ensuring the long-term stable operation of the air conditioner.

If you need any advice from our experts, please feel free to us with your questions. :

+ Patented Fan Cover Design

TKT bus air conditioner fan cover, using the Archimedes spiral principle and conical patent design. This design is effective, optimizing the airflow trajectory, taking away heat more quickly and greatly improving the heat exchange effect of the air conditioner. (Click on image to enlarge)

+ Optimization of internal structure design

The design of the connection structure of each pipeline and part inside the air conditioner is optimized to improve the flow path of refrigerant. As a result, the heat exchange efficiency is improved, the refrigerant charge is reduced by 35%, and the refrigerant leakage is reduced. It contributes to the protection of the world environment. (Click on image to enlarge)

+ Anti-vibration performance

High thickness anti-vibration foam is added to almost every part and between parts. The sheet metal is also all thickened. It can better cope with various road conditions.

If you need any advice from our experts, please feel free to us with your questions. :

+ High-end customized return style grille

Material selection of high-grade iron aluminum alloy, high temperature resistance and corrosion resistance greatly enhanced. The strength is more than a little higher than ordinary aluminum alloy and plastic.
The interior adds advanced dustproof fiber and stable hexagonal grille design to ensure the freshness of air as well as heat exchange efficiency.

+ High-end customized bus air conditioner shell

According to the principle of aerodynamics, senior engineers fully consider the wind resistance coefficient and wind volume requirements of the roof, and the professional streamline design.
The material chosen is FRP, which has the characteristics of light weight, high strength, corrosion resistance, insulation and beautiful appearance. It provides sufficiently high strength protection and reduces overall vehicle weight and increases vehicle mileage. Such a choice meets the need of energy saving and environmental protection, which is always the belief of our company.

Strong and stable partnerships

We attach great importance to partnership, because only long-term and stable cooperation will lead to a win-win situation. We hope more friends can share this idea and work together to bring more coolness to people all over the world, have a good working and living environment, and at the same time work together for the sustainable development of the world.

TKT Roof Mounted Bus Air Conditioning System

For more information on diesel bus air conditioners.

For more information on Sub-engine bus air conditioning.

For more information on electric bus air conditioning.

If you need any advice from our experts, please feel free to us with your questions.
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