Mitsubishi Electric believes that its new water-on-water heat pump can play a key role in reducing district heating energy. The Ecodan Hydrodan designed by the manufacturer is specifically designed for the so-called fifth-generation heating network, using temperatures below 30 degrees Celsius.
The company believes that in view of the government’s heating and building strategy envisaged to substantially expand the heating network in the process of leading to a net network, new installations using high-efficiency and low-GWP (Global Warming Potential) refrigerant R32 can contribute to decarbonization. Make a major contribution. Zero-The independent Climate Change Commission recommends that such networks can account for up to 42% of future heating infrastructure.
Phil Ord, head of marketing and sales strategy, said: “Currently only 2% of the heat in the UK is provided by the heat network, so the potential is huge… [and] It can be said that the pace of technological change has never been faster.”
The use of heat pumps in one-, two-, or three-bedroom apartments on the environmental loop will enable operators to use heat recovery and balance the heat load of the entire network, thereby significantly reducing primary energy use.
Hydrodan aims to take advantage of the so-called fifth-generation heating network, which operates at a temperature of 10-30 degrees Celsius. These devices are installed in apartments with a fixed water circulation and can be used as a heat source or as a heating water tank, depending on heating or cooling requirements. If cooling equipment is used in the circuit, the heat pump can use the discharged heat.
The capacity range of each plug-and-play device is between 1.1 kW and 7.5 kW, and the flow temperature is up to 60 degrees Celsius. Each device is equipped with a 170-liter integrated water tank, and its footprint is designed to fit standard practical cabinets. Mitsubishi Electric pointed out that the charge of R32 in each heat pump is within the allowable charge of refrigerant in the closed cabinet. These devices are compatible with any type of heat radiator, and all connections to the network are located on the top of the device for easy access. The detachable heat pump unit itself includes a compressor; a refrigerant-water heat exchanger; a plate heat exchanger looped to the refrigerant; and a water pump.
It achieves this through the PICV (Pressure Independent Control Valve), which allows the flow to be changed independently of the system pressure.
Product manager Alex Bagnall said: “There are already renewable heating solutions for single-family houses, but this is one of the first truly low-carbon options for multi-family apartments.”
The manufacturer is particularly proud of the development of its 27 dB(a) extremely low noise output, which solves the common complaints of traditional HIU.
Manufacturers can also provide so-called Flypass kits, including bypass/filter/PICV and actuator combination valves, allowing the installation and commissioning of the heating network before the heat pump is installed in the apartment.
Senior product manager James Chaplen added that, according to a recent survey by BRE, the fourth-generation heating network is prone to distribution losses—between 32% and 66%—and cannot use the heat recovery of any cooling plant. The challenge is Convince designers and interpreters of the potential benefits of environmental networks.
Mitsubishi Electric said that Hydrodan can now be designated and delivered from April.
Phil Ord said: “From architects to M&E experts to energy distributors, there are many different types of people who have a place in the heat network, and the relationship can be very complicated. Therefore, education is critical to the potential of new technologies. ”
Mr. Bagnall added: “Two to three years later, people will ask,’Why do we specify the fourth generation option?’”
Tagged as: 2050 net-zero heating and building strategic heating network Mitsubishi Electric water-to-water heat pump
Post time: Dec-03-2021
