Mitsubishi Electric Corporation announced it has developed a plate heat exchanger for heat pump cooling and heating equipment with industry-leading heat transfer performance roughly three times that of conventional models. The new design reduces the number of plate layers, cutting the refrigerant charge to approximately one-third of conventional levels, which lowers environmental impact and improves safety. The company said the unit uses distribution channels at the fluid inlets and outlets to ensure uniform refrigerant flow across plates, including those fitted with micro-offset fins, producing an even distribution of gas-liquid two-phase flow. Channel placement was optimized using proprietary analysis technology that simulates the complex flow of two-phase refrigerants between fine fins. Mitsubishi Electric said the development responds to stricter refrigerant regulations tied to carbon neutrality goals, since next-generation refrigerants such as R32 have lower Global Warming Potential but are often flammable, making volume reduction essential to limit leak risks.
Mitsubishi Electric Corp.Developed a plate heat exchanger with triple heat transfer performance and one-third refrigerant charge, a product/R&D breakthrough.
China Dvlp Bk Finl Leasing Co