深入了解為 40,000 戶家庭供暖的世界巨型熱泵！

MVV Energie, a German energy company, is constructing some of the largest and most powerful heat pumps in the world. These massive machines will use water from the River Rhine to help heat thousands of homes in Mannheim. The pipes that will carry water to and from the heat pumps are so large that a person could walk through them standing up. According to Felix Hack, the project manager, the system will draw 10,000 litres of water per second from the river. The water will be used to collect heat, and then it will be returned to the river after the heat has been taken out. The heat pumps will be installed at the site of an old coal power plant, which is being converted to use cleaner energy sources. Each of the two heat pump units will have a capacity of 82. 5 megawatts, enough to supply heat to about 40,000 homes through a district heating system.

The size of the heat pumps was partly determined by how big the equipment could be and how it could be transported through the city streets or possibly by barge along the river. Other companies, like Everllence, are also building very large heat pumps and see it as a friendly competition. Heat pumps work by absorbing heat from the air, ground, or water. Inside the heat pump, a refrigerant evaporates when warmed, and then it is compressed to increase the heat even more. This process is similar to how smaller heat pumps work in homes, but these giant machines can heat entire city districts. As cities around the world try to reduce pollution and use cleaner energy, many are choosing to install large heat pumps connected to district heating networks. These networks use long pipes to deliver hot water or steam to many buildings.

The Mannheim heat pump project is expected to begin next year and should be fully operational by the winter of 2028-29. The system will use filters to make sure fish are not sucked up from the river, and studies show it will only change the river's temperature by less than 0. 1 degrees Celsius. The project will cost about €200 million. Everllence is working on an even bigger heat pump project in Aalborg, Denmark, with a total capacity of 176 megawatts. This system will use four smaller modules and is expected to supply nearly one third of the town's heating needs. Large hot water storage tanks will help make the system more flexible, allowing it to store heat when electricity prices are high. In Finland, Helsinki is updating its district heating system by adding heat pumps, biomass burners, and electric boilers to a network that connects almost 90 percent of the city's buildings. In the UK, new district heating networks are being planned, such as the Exeter Energy Network, which will use air-to-water heat pumps to supply heat to the University of Exeter and other customers. Experts believe that using water from old mines and building heat pumps in rural areas could help expand clean heating options. As more cities look for ways to reduce their carbon footprint, large heat pumps are becoming an important part of the solution.