Water-to-water heat pump set to save significant energy in heat networks


New Ecodan Hydrodan aims to make use of heat recovery in ambient warmth networks

Mitsubishi Electric powered thinks its new h2o to water heat pump can engage in a essential position in the reduction of strength in district heating. The producer has developed the Ecodan Hydrodan specificially for use with so-called fifth era warmth networks, that make use of temperatures under 30 deg C.

The organization thinks the new unit, which utilizes the successful and minimal-GWP (World wide Warming Opportunity) refrigerant R32, can make a significant contribution to decarbonisation, provided the government’s Heat and Structures Method envisages a important enlargement of warmth networks on the journey to internet zero – the independent Local climate Improve Committee instructed that these kinds of networks could comprise as much as 42 for each cent of the potential heating infrastructure.

Phil Ord, head of marketing and profits method claimed: “Currently only 2 for every cent of the UK’s heat is delivered by heat networks, so the prospective is huge… [And] arguably the pace of adjust of technologies has in no way been greater.”

The use of the heat pumps in a single-, two-, or a few-space flats on an ambient loop will enable the operator to make use of warmth recovery and to stability the warmth hundreds across the network, therefore cutting the use of major electrical power substantially.

The Hydrodan is designed to exploit the rewards of so-termed fifth era warmth networks, which run at temperatures of 10-30 deg C. The models, set up in apartments on a preset h2o loop, can possibly be utilised as a heat supply or heat sink, based on the heating or cooling requirement. If cooling plant is used on the loop, the warmth pumps can make use of the rejected warmth.

Every plug and enjoy device offers a ability assortment of involving 1.1 kW and 7.5 kW and movement temperatures up to 60 deg C. Just about every attributes a 170 litre built-in tank, with a footprint created to match inside of a common utility cupboard. Mitsubishi Electrical points out that the demand of R32 in every single warmth pump is easily inside of the cost limits authorized for the refrigerant in an enclosed cabinet. The models are compatible with any style of heat emitter and all connections to the network are presented at the best of the device for relieve of obtain. The removeable heat pump device itself contains the compressor refrigerant-to-water heat exchanger loop-to-refrigerant plate warmth exchanger and drinking water pump.

It achieves this by means of a PICV (Stress-Unbiased Command Valve) which permits the flow to be adjusted independently of the system stress.

Mitsubishi has now pledged to make its own operations internet zero by 250

Solution Manager Alex Bagnall reported: “There are by now renewable heating alternatives for solitary homes, but this is one particular of the initially truly low-carbon solutions accessible for multi-household flats.”

The maker is specially very pleased of its enhancement of a quite low noise output of 27 dB(a), addressing a widespread complaint with traditional HIUs.

The manufacturer can also offer what it calls a Flypass Package, comprising a bypass/strainer/PICV in addition Actuator combination valve, which will allow the warmth community to be put in and commissioned before the heat pumps are put in in the residences.

Senior product or service manager James Chaplen added that with fourth technology heat networks susceptible to distribution  losses – between 32 for every cent and 66 per cent, according to a new BRE survey –  and not ready to utilise heat recovery from any cooling plant, the problem was to convince designers and specifiers of the potential positive aspects of ambient networks.

Mitsubishi Electric mentioned the Hydrodan is accessible to be specified now, with supply of the units from April.

Phil Ord said: “There are a whole lot of distinctive sorts of folks with a stake in heat networks – from architects to M&E specialists to electrical power distributors – and the associations can be rather intricate. So education and learning is vital about the probable of the new know-how.”

Mr Bagnall extra: “In two to a few years’ time, persons will be inquiring ‘why did we specify the fourth era choice?’”



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