DAY 5 - Introduction to Urban Low Carbon Development Technologies

Ladies and gentlemen, good day to you all. I represent the Beijing Institute of City Planning and Design. My name is Jianke Gao. I hold the position of Senior Engineer with professorial rank. Our institute primarily operates in two key areas. The first involves government projects.

The second deals with market-oriented projects. Our government work comprises several key tasks. First is developing the city's master plan. This involves charting the city's future development. We plan for population growth, and allocate land for construction. And so on.

Next, we have the Detailed Zonal Plan. This builds upon the master plan, detailing the development goals for each area, including its planned infrastructure and population. Then we have Special Plans.

These are specific plans that support the main ones, focusing on essential facilities and infrastructure. For example, fire safety plans, water and power supply, and other similar plans. All these support the main planning efforts. We also conduct specialized research projects. For instance, identifying new demands for future urban development. One such study focuses on the concept of Resilient Cities.

This explores how cities respond to various disaster scenarios. We examine strategies for effective response. The goal is to enhance our infrastructure's resilience and capacity.

Another focus is the city's informal economy development. We consider all aspects of informal economy growth. Extensive research has been conducted on this topic. Our second main business category focuses on market needs.

This includes services for various real estate developers. We address their specific development requirements. We tailor our services to the specific scale of their construction projects. This includes energy utilization strategies and other related aspects. Today, we'll focus on our urban development projects.

We have several case studies from this department to share. The first case study involves the city's reclaimed water plant. This plant processes wastewater into reclaimed water. Typically, this water is used for river cleaning and irrigation.

However, this reclaimed water retains some heat. It's about 10 to 20 degrees Celsius. So, how can we harness this residual heat? We're exploring ways to use this reclaimed water in buildings as a heat source during winter. Cooling in summer. This is our recycled water utilization plan. The project primarily focuses on heating.

It can cool up to 16 million square feet. It's being implemented in phases. The second case: waste plant excess heat.

This heat is used for residential buildings, and public buildings' heating systems. Beijing now requires new buildings to use 60% renewable energy. The city's waste incineration plant provides green energy through its excess heat.

So, making full use of waste plant heat to meet building heating demands is a trending approach. Our project can effectively address heating needs for nearly 2 million square meters using waste heat. The waste plant's capacity is about 1000 tons processed daily. It can heat 200,000 square meters of buildings. Cities are also seeing a rise in data centers.

These are crucial for smart city infrastructure. These data centers generate significant waste heat. as they require year-round cooling. Cooling systems inevitably generate heat as a byproduct.

This waste heat is relatively low-grade. Typically ranging from 20 to 30 degrees Celsius. However, by employing heat pump technology, we can upgrade this low-grade heat into usable thermal energy below 100°C for buildings. We've implemented several data center waste heat recovery projects. One current project supplies heating for an 800,000 square meter building complex. We've also deployed large-scale shallow geothermal systems to provide heating and cooling for a 2-million-square-meter office district.

We've successfully implemented a low-carbon emission reduction strategy. We're also looking into future energy sources. Specifically, hydrogen energy is a promising future option. We've been exploring the potential of hydrogen energy as well. From an urban perspective, there are several ways to integrate hydrogen into the energy system. Large solar and wind farms can use cheap electricity to produce hydrogen.

However, Beijing doesn't have such large-scale facilities. We lack the space for extensive wind and solar farms. So we must leverage existing urban infrastructure to tap into hydrogen resources. Our research suggests Urban waste treatment plants are currently a rich source of biogas.

The technology to convert biogas into hydrogen is now well-established. Plus, it's a clean, renewable energy source. That's why we're zeroing in on waste treatment facilities.

First, landfills undergo a natural settling process, which produces what we call landfill gas, a type of biogas. Second, there are facilities that process organic waste, all of which use anaerobic digestion. This process also generates biogas.

By harnessing the biogas from these waste treatment plants, we're exploring ways to produce hydrogen. It's a naturally green process from start to finish. It's also more cost-effective and energy-efficient than electrolysis.

Plus, it's well-suited for urban settings. We've been actively planning and implementing initiatives in these areas. I won't delve into these technologies in detail here. We'll cover them in depth later. Hello, everyone. Today, I'll discuss technologies for urban low-carbon development.

First, why do cities need to go low-carbon? It's primarily due to our excessive carbon dioxide emissions. We produce vast amounts of CO2 in our daily lives and industries. This CO2 contributes to the greenhouse effect.

This leads to more heat being trapped in our atmosphere. Consequently, global temperatures are steadily climbing each year. On average, we're seeing a temperature increase of about 0.3°C per decade. Experts warn that unchecked global warming could lead to catastrophic consequences. That's why there's a global push to curb temperature rise. The current target is to cap warming at 1.5°C over 30 years.

We've already hit about 1.3°C of warming as of 2023. Clearly, we're facing an uphill battle. Failing to meet these targets could trigger a cascade of environmental disasters, including widespread glacier melt. Sea levels will rise, submerging coastal areas. This will force residents to evacuate. Next, as temperatures rise, the atmosphere will shift, triggering extreme weather events.

Additionally, as permafrost thaws, it will release trapped microbes, potentially reviving ancient pathogens. This poses serious health risks. We must reduce CO2 emissions now.

This means investing in renewable energy tech. Let's examine urban carbon emissions across industries. This chart shows the construction industry's emissions. It accounts for approximately 5.6% of total emissions. The largest contributor is energy consumption for electricity and heat. This energy primarily powers lighting and office operations in urban buildings.

As well as heating and air conditioning systems. Combined, these sectors account for nearly 40% of emissions. Thus, urban emission reduction efforts should target these areas. Now, let's explore key principles for low-carbon development.

First principle: Prioritize energy conservation. Achieving our Dual Carbon Goals requires tackling both supply and demand. This approach will minimize the costs of reaching our targets. Accelerate our goal achievement timeline.

On the demand side, our focus is energy conservation. Reach our targets with minimal expense. The second principle: renewable energy first.

Achieving our Dual Carbon Goals isn't about halting progress. We must continue to grow and evolve. We'll substitute conventional energy with renewables. Renewable energy becomes our top choice. This embodies our renewable-first approach.

Our third principle: drive technological innovation. Conventional tech can't balance efficiency and economy. Hence, embracing new technologies is crucial. There's an old saying about wanting a horse to run fast while eating less grass.

This ideal can only be achieved through innovative technology. That's why technological innovation is crucial. The fourth principle is to promote diversity in our energy system.

We shouldn't rely on just one energy source, but instead, use a mix of complementary energy sources. This approach helps stabilize the inherently variable renewable energy sources, ensuring a reliable energy supply. The final principle is about integrating different energy sources. Renewable energy sources naturally fluctuate in output. They vary between day and night, Our energy consumption patterns fluctuate between day and night as well. To balance this, we rely on energy storage systems.

Thus, we need to integrate these systems harmoniously. This approach ensures the stability of the entire energy system. Now, let me introduce you to some innovative technologies. First up is ground source heat pump technology. This technology harnesses the properties of soil. It uses these properties to heat and cool buildings.

We can classify soil into three layers: shallow, medium, and deep. Shallow surface soil maintains a temperature of around 25°C. Mid to deep layers can reach temperatures from 25°C up to 150°C. Ground source heat pumps work by exploiting this thermal stability of the soil.

In summer, excess heat from buildings is stored in the ground. This stored heat is then extracted to heat buildings in winter. Similarly, cold air from buildings in winter is stored underground. There's some energy loss during this storage and retrieval process. Heat pump technology compensates for this energy loss. This technology is essentially seasonal thermal energy storage.

Here's a diagram explaining the process. On the right, we see the summer scenario. The red arrows show heat extracted from buildings and stored underground. The blue arrows show stored cold air being extracted for cooling. On the left, we see the winter scenario. The red represents heat extracted from underground.

Then, the cool air from buildings is stored back underground. A key feature of this technology is its energy efficiency. The heating system's efficiency (COP) can exceed 4.0. This means that for every kilowatt of electricity used, the system produces 4 kilowatts of heat energy.

For cooling, the efficiency can be even higher, reaching 6 or above. This means 1 kilowatt of electricity provides 6 kilowatts of cooling. These figures highlight its exceptional energy efficiency. Another advantage is its low energy costs. It costs just 40% of what gas heating does, and only 24% compared to electric boilers. Only 11% of a fuel oil boiler's energy consumption.

This table compares energy efficiency, using the heat pump as the baseline. As you can see, a gas boiler consumes 2.5 times more energy. An electric boiler uses 4.2 times more energy.

And a fuel oil boiler consumes 9 times more energy. Now, let's look at the installation process of a geothermal heat pump. In the leftmost image, you can see two geothermal drilling rigs. These machines bore deep holes into the earth.

Each hole is about 30 centimeters (or 12 inches) in diameter. The boreholes are spaced about 4 to 5 meters apart. The image on the right shows a completed borehole.

Next, a casing is installed. This pipeline allows us to transfer the heat exchange medium inside. This is the pipe lowering and thermal backfilling process. The third step involves connecting the vertical wells we drilled earlier. We need to link these vertical wells with pipelines.

This requires installing horizontal pipelines. Step four: Dig trenches for horizontal pipes. Next, we connect all vertical pipes to the horizontal ones.

The left image shows backfilling after connecting horizontal pipes. The sixth step involves creating vertical shafts to connect all the horizontal pipelines. All the pipes are connected to our central shaft. These are linked to our regulation system. This is the geothermal heat pump facility.

All the pipes we've just installed lead to this facility. They're connected to our heat pump units, serving as a circulation loop for the heat pump condensers. Now, let's look at how this technology is applied.

This is a project in Beijing with a total area of 22,000 square meters. The project incorporates a central air conditioning system. Due to site constraints, there's limited space around the building. As a result, all the vertical pipes were installed beneath the building's foundation. The system has been up and running since its completion in 2006. It's been operating for 18 years now.

And it's performing excellently. Now, let me tell you about our gas-powered air source heat pump. This tech works on the principle of absorption cooling. It pulls heat from the air, using natural gas as its power source.

The absorption heat pump then processes this energy, transferring it into the system. A key advantage is its tolerance to cold weather. Unlike standard electric heat pumps, it's less affected by winter temperatures. As temperatures drop, the system's efficiency decreases.

As shown by the blue line in the right diagram, the efficiency drops in a linear fashion. At low temperatures, frost forms on the condenser. This frosting impairs the unit's performance, necessitating a shutdown for defrosting. Operation resumes only after defrosting. Our gas heat pump, however, operates on the principle of absorption cooling. This system utilizes residual heat, which means in cold winter conditions, its performance is virtually unaffected.

If you look at the purple line on the graph, you'll see that from -15°C up to 30°C, the efficiency curve remains nearly flat. This indicates excellent low-temperature performance. Additionally, the heat pump offers continuous, seamless adjustment.

It's controlled by a smart PLC system, which adjusts gas consumption based on indoor demand. This system offers seamless temperature control. It also features automatic water temperature regulation. Providing comfort while perfectly integrating with your home. Plus, it's much quieter than an electric heat pump. Just a meter away from the unit, it meets residential noise standards.

That's less than 50 decibels. It's also compatible with various heating systems. You can use it with underfloor heating systems. It starts at around 45 degrees Celsius.

Or you can opt for traditional radiators. It can heat water up to 70-80 degrees Celsius. It also meets all your hot water needs, including showers.

Plus, it's cost-effective to run. Looking at these charts, we can compare it to other heating options. There's the gas boiler, the air source heat pump, and the combination gas wall boiler. The right chart shows that gas heat pumps are the most economical. At a 25-watt output, for instance, which is the lowest energy demand, it costs only about 10 units to operate.

All other options are likely to be much more expensive. That's why it's more cost-effective. The final technology we'll cover today is known as Ambient Energy Heat Pump Technology.

This tech still relies on electric heat pump principles, but with a separate evaporator. This evaporator can absorb solar energy as well as heat from the air. Hence, it's called air-source heat pump technology. This tech enhances the efficiency of traditional electric heat pumps. In winter, standard electric heat pumps typically have a COP of around 2.5.

In any case, the COP remains below 3. This system can achieve a COP between 2.5 and 3. 8 This technology's principle is based on the Carnot cycle. It uses a phase-change material to absorb various forms of surface heat from the environment.

Like solar energy, wind energy, and others. Then, by integrating with a heat pump and through innovative design, the phase-change material is introduced into the evaporator. Heat is then reabsorbed through the absorption plate, maximizing vaporization. Next, the gas undergoes compression. This compression process is then repeated.

The resulting high-temperature, high-pressure gas is then injected. Subsequently, it passes through the condenser for release. It then liquefies after passing through an expansion valve.

The cycle then repeats. This continuous process enables the transfer of energy from low to high levels. A key advantage of this technology is its diverse energy sources. As mentioned earlier, it can use solar power, wind power, It can also harness electromagnetic energy, among others. It prevents frost formation in winter, significantly boosting its efficiency. The heating efficiency can reach 2.95 to 3.6 at -12°C.

Average heating consumption is 35 kWh, saving 10 kWh compared to conventional methods. Construction costs remain unchanged, comparable to standard air-source heat pumps. Noise levels range from 40 to 68 dB. In residential areas, some minor noise reduction measures may be needed. The noise level can be kept below 60 decibels. A case study of this technology is from Liaocheng, Shandong, China.

There's this office building... It's not a huge building, covering about 7,600 square meters. It's a 4-story building with a brick and concrete structure. The insulation meets four distinct standards.

It used to rely on the city's heating network, and had traditional screw chillers for cooling. In 2020, to support national low-carbon initiatives, We upgraded the building's heating and cooling system to save energy. We installed air source heat pumps during the upgrade. It's been running for two years now.

We've achieved a heating energy consumption of 20 kWh per square meter. That's compared to 10 kWh for cooling in summer. This project has won recognition from government departments. It's been showcased as a model for China's 2024 Zero-Carbon initiative. Earning high praise for its achievements.

Thank you all. And that wraps up my presentation. Now, let me cover two main points.

I'd like to introduce you to... Let me introduce two innovative technologies. The first deals with urban waste management. And the second focuses on city-wide heating solutions. Let's start with the waste management technology.

It's called Rapid Organic Waste Fermentation. This method tackles organic waste in urban areas. Now, the traditional way of handling organic city waste is known as aerobic composting. It involves piling waste outdoors, allowing it to decompose naturally.

This process lets bacteria repeatedly ferment the waste, generating heat that eliminates harmful microorganisms. But this method requires a lot of land. Plus, it gives off strong smells. It really affects the neighborhood. And the process takes quite a while.

Also, its byproducts aren't very useful. After fermentation, it's basically just dirt. You can't really use it again.

It's not great as fertilizer either. But our new technique fixes all that. We start with local organic materials. Like soil, for instance.

Then we use it to create enzymes. We extract a special enzyme from these organic materials. Then we add this enzyme to our large organic processor. We let the mixture ferment in a container. Once fermentation is complete, Finally, we use a high-temperature breakdown process to remove harmful substances from the waste, and enhance the fertilizer's effectiveness.

Moreover, the entire process takes place in a sealed environment. Let's break down the process. Here's how it works: We have a few main steps: To start, we prepare the raw materials.

These are then finely ground until they're the right size. Next, we use a feeder to load them into the reactor. Then we add those microbes I mentioned earlier. After that, we throw in some wood chips and dried leaves. Plant stems and similar materials Adjusting the ingredient ratios The goal is to keep moisture content below 60% After mixing, beneficial bacteria are added The equipment then heats up The reaction completes in 160 minutes Key features of this technology include: First, efficient processing Complete process within three hours As you can see from this table, it's clear that compared to alternatives, other methods typically take 60 days or over a month. In contrast, our technology completes the process in just three hours.

What's more, there's minimal weight loss during processing, resulting in significantly reduced harmful emissions. Now, let's look at the second key advantage. Regarding carbon emission reduction, traditional composting uses microbial decomposition. However, during this process, it releases significant amounts of CO2 and methane, resulting in substantial organic carbon loss, typically around 50-60%. In contrast, our rapid fermentation technique virtually eliminates this issue.

It prevents further carbon loss, thus significantly reducing CO2 emissions. A carbon footprint study by relevant agencies shows that when compared, As we can observe, this technology actually has the smallest reduction in carbon footprint. It only reduces about 48 grams per ton, or rather, kilograms. Whereas other methods reduce several times more, up to dozens of times more. Additionally, this technology has a wide range of applications. It can be used for various purposes, such as managing food waste from institutions or businesses, as well as handling waste from paper manufacturing plants.

We can also process sewage sludge. Waste from wineries, food factories, and similar industries. Moving on to residential waste, we have household food scraps, and waste from institutional cafeterias.

In agriculture, forestry, and fisheries, we deal with organic waste such as leafy greens, fruit and vegetable scraps, and poultry manure. All these can be treated effectively. As mentioned earlier, The system operates with virtually zero emissions. It produces no exhaust emissions. It generates no wastewater.

The facility's footprint can be scaled from a few hundred to several thousand square feet. It's also available as a mobile solution. Here, we can see an example of the equipment setup. This unit has a processing capacity of about four tons per day. The image on the far left shows one of its components.

This is the feeding equipment. The image in the middle shows the belt conveyor system. The rightmost image depicts the fermentation apparatus.

From this image, we can see that the final product resembles soil-like sawdust. It's black in color. This product has undergone various tests, specifically for processed animal waste, and meets Chinese waste treatment standards.

It meets the application standards, for organic fertilizer use. As a result, they've even set up a vegetable garden using this fertilizer. The results are impressive. The second technology we'll cover is household carbon fiber heating with energy storage. The principle behind this technology is essentially an electric radiant heating system.

It utilizes carbon fiber Carbon fiber is highly efficient at dissipating heat. So, when connected to a power source, it converts electricity into heat. Looking at this diagram, we can see the yellow carbon fiber heating wire.

The blue layer at the bottom is for insulation. This system is laid directly on the floor. Underneath is the building's foundation. The blue insulation layer prevents heat from escaping downwards.

Next, Above that is the gray reflective layer. On top of that, we place the heating material. The topmost layer is decorative, such as floor tiles. Within the yellow heating layer, phase change energy storage materials are incorporated.

Looking at this diagram, you can see the black heating carbon fiber in the center. It converts electricity to heat with over 98% efficiency. Plus, it operates silently.

It emits no light. This shows the carbon fiber and the connection method with the electrical wiring. Essentially, all these connectors are patented designs. They've developed the Cold and Hot Wire Connection Technology, which is patented in China. Compared to traditional methods, it eliminates electrical leakage, significantly enhancing safety. This table here displays the key performance specifications.

Take the silicone layer, for instance. It's heat-resistant up to over 300°C. The insulation layer can withstand over 200°C. As for the protective layer, it's good for over 100°C.

In practice, however, underfloor heating rarely exceeds 40°C. Therefore, safety is absolutely guaranteed. Now, this diagram here illustrates these points clearly.

The yellow-tinted area represents the phase change energy storage material. This phase change material is placed between heat-generating devices. Subsequently, This setup allows for heat storage at night and release during the day, optimizing power supply fluctuations. This process balances the power supply system's load.

From an economic perspective, the cost of additional power is also favorable. Here's a detailed diagram of the phase change material, showing both front and back views. In this state, it's a tubular phase-change material with a thermal density five to ten times higher than conventional heat storage. This means it takes up less space.

It uses the material's heat absorption and release during phase changes to store energy from off-peak electricity at night. During the day, when electricity use is restricted, this stored energy is used to balance power consumption, providing efficient and clean heating. This is an insulation component for the maintenance unit. Their company has developed a new technology for our heating equipment, as well as innovative insulation materials.

They apply a heat-insulating film on windows, which prevents heat loss from the room. This technology reduces overall energy consumption by 20%. Another key feature of this technology is that it's designed for individual households, allowing It enables personalized, on-demand heating for each household. Moreover, it largely eliminates traditional heating systems, including the need for maintenance staff and equipment that typically lasts as long as the building itself - usually over 50 years.

As a result, the system's operation is managed remotely through our monitoring system. Plus, it virtually eliminates the need for heating pipes. Therefore, This approach conserves building materials. From this perspective, it's also environmentally friendly. Plus, it's quite easy to manage.

This enables what's known as smart heating. Now, let's look at the indoor setup. On the left, we have the resident's space. In each room, there's a temperature control unit. You can set unique temperatures for each room. Using your smartphone, You'll be able to monitor various temperature readings.

These readings are then sent wirelessly to a central control unit. The central unit then manages the adjustments. It can forecast conditions for various buildings in different areas, taking into account outdoor temperature fluctuations and balancing them with indoor comfort needs. This system is managed through a cloud-based platform.

The key component is a climate compensation system which uses outdoor weather patterns to optimize performance. Taking into account indoor requirements, the system forecasts the upcoming period or develops a control strategy for the next day. Furthermore, it utilizes an indoor detection system to determine room occupancy. When a room is empty, the system adjusts to energy-saving mode. It also features zone-specific and time-based controls, as well as peak and off-peak power management.

For instance, if night-time power demand rises, When everyone comes home from work they start turning on lights and various household appliances During this period the household power consumption spikes The system automatically detects when usage reaches a preset threshold Once this limit is exceeded it temporarily shuts down our electric heating system Then once the power usage returns to normal the system reactivates the heating This way This system automatically balances energy supply and demand. Moreover, this technology offers six major benefits, all with 'zero' impact. First, zero government funding required.

Unlike conventional systems needing heat plants, extensive piping, and in-building pipework, this system eliminates all of that. Second, zero pollution. It runs entirely on electricity, which is cleanly converted into heat. In reality, it's completely emission-free.

Moreover, it requires no increase in power capacity. This is due to its built-in automatic load sensing system. As a result, when power demand spikes, the system temporarily pauses its operations. Since it has energy storage capabilities, it can draw from stored energy during this time. When power demand drops, the system resumes normal operation.

During periods of lowest power consumption, I can activate my entire system at once. Then, the excess energy is stored in the materials below. Moreover, the equipment has zero depreciation.

It lasts as long as the building itself. This means unlike other equipment that needs replacing after about 20 years, this system doesn't require replacement. As a result, it completely eliminates this issue. Additionally, it requires no maintenance costs whatsoever. Plus, customer satisfaction is guaranteed to be 100%. Now, let's look at some real-world applications.

Take a look at this photo. It shows a command center from the Beijing Winter Olympics. The facility covers over 5,000 square meters. It was completed in July 2021. Here, they installed the electric field pipes underground.

Next, It's performing quite well. Now, we have a residential project in Langfang, China, which implemented this system. Additionally, with an 80% occupancy rate, it ensures reliable functionality for residents.

Another project is in Bijie City, Guizhou Province, also a residential development. The total area covers 900,000 square meters. The first phase Covering an area of 200,000 square meters, this project employed this approach. The results have been quite positive. As this residential complex is positioned as upscale, consequently, resident feedback has been very positive. This project is part of China's poverty alleviation initiative.

Located in Lunping County, Chengde, the project covers about 13.6 acres. As part of a poverty alleviation initiative, the villagers have limited financial resources. To address this, we've implemented a system where I primarily utilize subsidies to lower expenses.

This ensures that the costs remain within the residents' means. And that wraps up our overview for today. We're transforming waste oil into fertilizer, helping plants grow. Producing premium-grade fertilizer In just three hours At our pilot facility Preparing to load materials On-site process supervision Loading cattle manure Adding straw supplements Setting parameters and starting Adding specialized bio-agents Thoroughly mixing manure and straw Fast fermentation: 3 hours complete Unloading the final product This is premium, fully matured organic compost.

In the frigid northern regions, Indoor heating is essential for a comfortable life. In northern China, Given the political and energy landscape, coal-powered centralized heating has been the traditional heating method. To improve urban living conditions, With the shift to cleaner yet costlier natural gas, traditional heating systems are evolving. Large centralized systems are giving way to smaller ones.

The areas affected from decentralized to centralized distribution This shift in distribution represents a significant change in the heating infrastructure moving towards efficiency and cost-effectiveness in energy distribution This shift marks a transformation in energy heating This model drastically cuts initial heating equipment costs Yet high operating costs hinder widespread coal-to-gas conversion A national energy landscape: oil-poor, gas-dependent This has resulted in gas shortages in some areas. The Qiwit Gas-Powered Air Source Heat Pump In this challenging environment, our team spent years of rigorous research to develop this innovative heating solution. It boasts three key advantages: Lower investment costs, reduced operating expenses, and decreased emissions. It also excels in two areas: High resilience to investment risks, and superior stability amid fluctuating occupancy rates. Set to revolutionize China's heating industry Gas-powered air-source heat pump Affordable for customers Flexible: works as single unit or multiple Helps decentralize energy distribution Rooftop installation Perfect for individual building heating Lower upfront costs Using advanced heat pump technology Uses 55% less gas than traditional boilers Significantly reduces heating costs Features dual-core cold-resistant technology Significantly enhances the unit's performance in extreme temperatures.

This leads to a substantial reduction in natural gas consumption. Resulting in significantly lower operating costs. Helps balance natural gas supply and demand. Gas heat pump emissions are cut by approximately 50%. State-of-the-art combustion technology reduces nitrogen oxide emissions to world-class standards. This technology significantly contributes to air quality improvement.

Gas heat pumps' post-construction installation feature differs from traditional heating systems installed during construction. This helps customers better manage investment risks. Lower investment costs Gas heat pumps' modular design and seamless output adjustment Effectively tackle fluctuating occupancy rates Better adapt to varying occupancy levels Qiwit Gas-Powered Air Source Heat Pump Combining 3D technology with two superior features Cutting-edge global heating technology The ultimate choice for centralized heating Eco-friendly comfort for all Qiwit Gas-Powered Air Source Heat Pump

2024-12-21 02:24

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