electric heat pumps can normally deliver from 2 to 4 units of heat per unit of electricity consumed, offering a much lower running cost than an equivalent resistance heater. For a given amount of energy delivered
Following the methodology explained in section 2, this section presents the identified temperature levels and sizes of heat sinks and sources for the Swiss chocolate sector, economic feasibility analysis for generic HP integration and cost-effectiveness analysis for integration of commercialized HPs. 3.1....
Heat pumps function just like a traditional air conditioner, except the AC process can also be reversed to heat the home during the winter months. A central heat pump uses the same ductwork with a furnace fan to distribute warm air throughout the house. The compressor in the outside unit ...
Large-scale heat pumps (HPs) are proposed as a technology to efficiently utilize intermittent wind power and other renewable sources. More than 25 large-scale HPs have been installed over the past decade to supply district heating (DH) in Denmark. A continuous increase is expected in the coming...
In the present paper, a thorough review of the experimental and numerical studies dealing with filmwise and dropwise condensation under microgravity is reported, covering mechanisms both inside tubes and on plain or enhanced surfaces. The gravity effect
As explained above, there is a new liquid entry for recirculation in the evaporator, while the crystals go down to the bottom, where they are picked up by an extraction pump. The vapour that comes out from the cyclonic separator is sent to a lobular vapour compressor that compress it to ...
combination and system boilers, LPG, showers, radiators, towels rails, shower valves, shower mixer, gas hobs & cookers, landlord gas safety certificates, gas hobs & cookers, heating pumps, booster pumps, wet & electric underfloor heating, drainage, blockages, full bathroom installations, smart hea...
For such purpose, we analyzed hundreds of invoices concerning the installation of heat pumps in existing buildings. In order to model the influence of the different variables on the up-front cost paid by the households, we developed general linear statistical models (ANCOVA) blending qualitative ...
where ˙QA˙QA is the revalued heat (useful heat) by the MAHP, the ˙Wnet˙Wnet represents the net power produced (power produced by the turbine minus the power consumed by the pumps). Both terms describe the helpful energy obtained by the MAHP. On the other hand, ˙Qsupply˙Qsupply...
For system B, the pumps (assumed efficiency: 70%) with additional pressure losses in the brine circuit and water circuit of 30 kPakPa and 20 kPakPa, respectively, inverter and motor losses (assumed efficiency: 90%) and energy consumption of the ventilator of the brine-to-air heat exchanger...