Ground source heat pumps face several critical challenges that engineers must overcome to ensure optimal functionality and performance. A volatile electricity market, combined with higher demands for efficiency and reduced CO2 emissions, is setting the scene for the next operating envelope, resulting in stable and high performance at all conditions, generation of ground source heat pumps.

Optimizing performance across the entire operating envelope and managing variable speed compressors and water pumps sets a new level of demand on the system design. The selected heat transfer technology will have a major impact on meeting these challenges.

How can Heat Transfer Technologies Elevate Performance and Sustainability?

Our heat transfer solutions are designed to tackle these challenges effectively. Our CFD-optimized channel plates enhance overall performance by perfectly adapting heat transfer to the specific conditions of ground source heat pumps.

Additionally, our heat exchangers feature an asymmetric design, where the channels are meticulously developed to balance refrigerant charge, performance, and water/brine pressure drop. This allows for minimal use of refrigerant in the system, contributing to better efficiency and environmental sustainability. Moreover, our heat exchangers are optimized for variable speed operation. This optimization ensures efficient refrigerant distribution and maximum utilization of the heat transfer area across the full operating envelope.

By addressing these critical challenges with our innovative solutions, we provide engineers with the tools they need to drive SCOP to new levels, achieving superior performance and sustainability in ground source heat pump systems.

• Condenser GSC
• Evaporator GSE
• Range <30kW

Loop Source Heat Pumps are an innovative solution for replacing fossil fuel residential gas boilers in multifamily buildings. This business model, initiated by utility companies, co-ops, and other investors, enables efficient electrification in urban areas through the application of Loop Source Heat Pumps. By installing small heat pumps in each apartment, we can replace traditional gas boilers, offering increased comfort with a minimized footprint.

Each apartment has a Loop Source Heat pump that extracts energy from a central loop containing preheated brine supplied by a centralized heating device, such as a high-capacity heat pump.
This cascading system is a prerequisite for designing more compact heat pumps suitable for the multi family market. These systems face several critical challenges that engineers must overcome to achieve optimal performance. Footprint reduction, reduced refrigerant charge, higher efficiency demands, and decreased CO2 emissions are driving the development of the next generation of Loop Source Heat Pumps. Optimizing performance across varying operating conditions, managing fluctuating temperatures and capacities presents new challenges for system design.

Heat Transfer Technologies to Elevate Performance and
Sustainability

CFD simulations optimized the plate geometry to maximize heat flux, minimizing the footprint and enhancing overall system performance. This is a key element in our loop source heat transfer solution. Higher flow rates and lower temperature increases differentiate this application from traditional ground source heat pumps. Our meticulously designed heat exchangers meet these unique requirements, ensuring optimal performance and efficiency.

Our heat exchangers feature an asymmetric design, balancing refrigerant charge, performance, and water/brine pressure drop while minimizing refrigerant use. Compactness is crucial for Loop Source Heat Pumps due to space limitations. This innovative approach facilitates swift and straightforward integration.

Optimized for variable speed operation, our heat exchangers ensure efficient refrigerant distribution and maximize heat transfer area utilization across the entire operating range. By addressing critical challenges with innovative solutions, we provide engineers with tools to achieve superior performance and sustainability in Loop Source Heat Pump systems.

• Condenser LSC
• Evaporator LSE
• Range <30kW

Exhaust air heat pumps are a cutting-edge solution for mainly new residential homes, offering energy recovery while providing ventilation. Modern, energy-efficient homes can benefit greatly from this technology.

However, these heat pumps face several critical challenges. The need to boost capacity, higher demands for efficiency, and reduced CO2 emissions are some of the key drivers. Key challenges include optimizing performance across the operating envelope, managing variable speed compressors, water pumps, and fans, and addressing the use of flammable refrigerants like R290 (Propane). Boosting the capacity is crucial for mitigating energy loss during defrost cycles as well as allowing for maximized capacity using natural refrigerants with minimal refrigerant charge. Maximizing overall system performance and Seasonal Coefficient of Performance (SCOP) by minimizing the need for electrical booster heaters.

Heat Transfer Technologies to Elevate Performance and
Sustainability

Our heat transfer solutions are designed to tackle these challenges effectively. Our CFD-optimized channel plates enhance overall performance by perfectly adapting heat transfer to the specific conditions of the full operating envelope. Additionally, our design accommodates for the use of natural refrigerants such as R290 (Propane). Our heat exchangers feature an asymmetric design, where the channels are meticulously developed to balance refrigerant charge, performance, and water pressure drop. This allows for minimal use of refrigerant in the system while maximizing the capacity and maintaining system stability. Moreover, our heat exchangers are optimized for variable speed operation, ensuring efficient refrigerant distribution and maximum utilization of the heat transfer area across the full operating envelope.

By addressing these critical challenges with our innovative solutions, we provide engineers with the tools they need to achieve superior performance and sustainability in Exhaust Air Heat Pump systems.

• Condenser EA-C
• Range <30kW

Air-to-water heat pumps are increasingly favored in milder climates, where they can effectively meet heating and hot water demands year-round. Their efficiency and environmental benefits make them prime candidates to replace traditional gas boilers in regions like Central Europe.

However, maximizing air-to-water heat pump performance presents significant engineering challenges. To meet growing demands for efficiency and reduced CO2 emissions, the next generation of these systems must overcome obstacles such as optimizing performance across varying conditions, managing variable speed compressors, pumps, and fans, and effectively addressing defrost cycles mitigating freezing. Additionally, the adoption of natural refrigerants like R290 (propane) introduces new design considerations.

Heat Transfer Technologies to Elevate Performance and
Sustainability

Our solutions are designed to tackle these challenges effectively. Our CFD-optimized channel plates enhance overall performance by perfectly adapting heat transfer to the specific conditions of the full operating envelope. Additionally, the refrigerant module in the outdoor unit opens up the possibility for full use of natural refrigerants such as R290 (Propane) with its preferred environmental benefits. Accommodating for this the heat exchanger feature an asymmetric design, where the channels are meticulously developed to balance refrigerant charge, performance, and water/brine pressure drop. This allows for the refrigerant charge, contributing to better efficiency and environmental sustainability. Moreover, our heat exchangers are optimized for variable speed operation which ensures efficient refrigerant distribution and maximum utilization of the heat transfer area across the full operating envelope. Our solutions address the defrost cycle and freezing challenge by using optimized, verified fluid dynamic simulations that secure uniform velocities, minimizing the risk of freezing in the water channels during defrost.

By addressing these critical challenges with our innovative solutions, we provide engineers with the tools they need to achieve superior performance and sustainability in Air to Water heat pump systems.

At Loval, we are a trusted partner for heat pump manufacturers, offering a wide range of backup heaters that meet specific design requirements when additional heating capacity is needed. Utilizing advanced vacuum brazing technology, our heaters ensure excellent heat transfer and long-term durability. Our solutions are flexible and customizable, with various options for electrical connections and water couplings, making it easy to find the perfect fit for your heat pump design. With a strong focus on energy efficiency and reliable performance, our backup heaters help optimize overall system functionality while meeting the highest industry standards.