air source heat pump Articles

  • Air Source Heat Pump Pros And Cons

    Advantages of air source heat pump: 1. Energy-saving: the average temperature is above 10 degrees. The unit consumes 1 kWh of electricity and can produce more than 4 kW of heat. It saves more than 70% of electricity bills than electric water heaters, and saves energy much compared to other water heaters. 2. ...

  • Hydrogen as Future Fuel for Gas Engines

    Gas engines are providing a wide range of fuel flexibility from burning natural gas and a variety of non- natural gaseous fuels from low British Thermal Unit (BTU) gases as well as gases containing a high hydrogen content. Hydrogen containing gases can be found as by-product ...


    By Clarke Energy

  • Emotion Energy - Air Source Heat pump case study

    Customer: Emotion Energy Location: Dumfries Heating System: 12KW Calorex Air to Water Heat Pump Installed: 09 Vortex was installed by Emotion Energy on an old isolated cottage which had been extended. They replaced an old oil boiler with a Calorex 12KW air to water heat pump and fitted Vortex ...


    By Vortex Energy Saver

  • Utilisation of air-groundwater exergy potential for improvement of the performance of heat pump systems

    This paper reports a study on the use of the non-flow air-groundwater exergy potential for improving heat pump performance. It is shown that for air/groundwater temperature differences of order 15°C, energy savings up to 50% may be expected for heat pumps operating either in the heating mode or in the cooling mode. It is also shown that the reduction in the energy required to drive the heat pump ...


    By Inderscience Publishers

  • Energy and exergy analysis of an Automobile Heat Pump system

    This study deals with energy and exergy analysis of an Automobile Heat Pump (AHP) system using R134a as the working fluid and ambient air as a heat source. An experimental AHP system consisting of original components from an Automobile Air Conditioning (AAC) system and some extra equipment was developed and instrumented. The system was operated in steady state under various ambient and return air ...


    By Inderscience Publishers

  • Steady versus dynamic exergy analysis: the case of an air source heat pump

    Exergy analysis is often performed statically, for given system conditions and reference state. Dynamic exergy analyses, considering the variation of system operation and ambient conditions, would obviously be more time consuming. Therefore comparing the results of the two approaches helps understand when the dynamic methodology should be preferred. In this paper the yearly behaviour of a ...


    By Inderscience Publishers

  • Solar-powered Stirling engines: a low-cost possibility for village power, pumping and cooling

    Stirling engines are heat engines that operate on a closed thermodynamic regenerative cycle and are used as power systems, refrigerators or heat pumps. Recent developments in Stirling technology allow the use of low temperature heat sources including flat plate solar collectors. New concepts for low-cost, low ΔT Stirling engines that may be made by village craftsmen using locally available ...


    By Inderscience Publishers

  • Zoo-technical application of Ground Source Heat Pumps: a pilot case study

    Ground Source Heat Pumps are energy-efficient HVAC systems usually adopted in residential and commercial buildings. However the control of the thermal environment is required not only in spaces occupied by people, but also in intensive breeding farms, in order to maintain healthy conditions and to increase productivity. In the Italian livestock breedings, heating is usually provided by means of ...


    By Tethys srl

  • Energy and exergy analysis of Hybrid Ground-Coupled Heat Pumps with hot water supply

    The energy and exergy efficiencies of a Hybrid Ground-Coupled Heat Pump (HGCHP) system with Domestic Hot Water (DHW) supply are analysed based on experimental study. Comparisons between the HGCHP and conventional DHW systems, i.e., Air Source Heat Pump (ASHP), Electric Heater (ElcH) and Gas-Fired Boiler (GasB), are made with respect to the energy and exergy efficiencies. The results show that the ...


    By Inderscience Publishers

  • Heat recovery and energy efficiency, improves profitability and reduces CO footprint

    Using latest technology in combustion of oil and gas can provide significant savings in overall energy consumption. Modern oxygen control that compensates changes in ambient temperature and fuel qualities can increase energy efficiency up to 3%. By adding the usage of hot combustion air another 2-3% can be saved. Modern burner technology without mechanical linkage, operating with accurate ...


    By Oilon Oy

  • Closing the last Energy Leak

    The heat contained in wastewater is one of the last major untapped resources in the field of renewable energies, despite the fact that it may some day provide some 20% of the heating energy we need. This huge potential has been addressed by a Swiss engineering office, Rabtherm AG, which now supplies patented technology for generating energy from wastewater, used for heating or cooling buildings. ...


    By RABTHERM AG

  • What Are Solar Buildings Technologies?

    Solar buildings technologies use the non-polluting power of the sun to help heat, cool, and power our buildings. Because buildings now use one-third of the energy currently consumed in this country, the potential markets for using solar buildings technologies in place of conventional ones is substantial. Whether you're a home owner, architect, builder, business owner, or industry or utility ...

  • Geothermal Energy... Power from the Depths

    The Earth's crust is a bountiful source of energy—and fossil fuels are only part of the story. Heat or thermal energy is by far the more abundant resource. To put it in perspective, the thermal energy in the uppermost six miles of the Earth's crust amounts to 50,000 times the energy of all oil and gas resources in the world! The word 'geothermal' literally means 'Earth' plus 'heat.' ...

  • Geothermal Heat Pump (GHP) - Case Studies

    Case Study: “GHP schools used approximately 26% less source energy per square foot of floor area,” according to an evaluation of Lincoln, Nebraska schools by the Department of Energy. The report concludes that the schools using GHP technology “outperform others in the school district.” Case Study: Annual electrical consumption in Fort Polk ...

  • Case study - Green Machine generates power from waste heat at biogas facility in the Czech Republic

    Biogas/Heat-to-Power Application on Two MWM Internal Combustion Engines Site: Brno, Czech Rep. Engine Max Power: 980kWe (currently limited to 900 kWe) Green Machine Gross Power Output Avg:  32-39 kWe Thermal Input to the Green Machine: 375-500kWt Hot Water Input Range: 86 - 92°C Hot Water Flow: 35 m3/hour Ambient Temperature: 0-25°C Date Commissioned: Q2 ...


    By ElectraTherm

  • Green machine generates power from waste heat at biogas facility in the Czech Republic

    Biogas/Heat-to-Power Application on Two MWM Internal Combustion Engines Site: Brno, Czech Rep. Engine Max Power: 980kWe (currently limited to 900 kWe) Green Machine Gross Power Output Avg:  32-39 kWe Thermal Input to the Green Machine: 375-500kWt Hot Water Input Range: 86 - 92°C Hot Water Flow: 35 m3/hour Ambient Temperature: 0-25°C ElectraTherm’s ...


    By ElectraTherm

  • Renewable energy progress report

    What is the Renewable energy progress report and what is its purpose? The Renewable Energy Directive states that a progress report should be issued every two years. The purpose of this progress report is to assess Member States' progress in the promotion and use of renewable energy in line with the 2020 targets. In addition, it contains sections on ...


    By Europa Press Room

  • Case study - Oxidizer energy recovery options

    Overview The mainstream media today is full of allusions to energy awareness and conservation. Just as visible these days are media references to astronomical dollar figures that can boggle the mind. This article does ...

  • Case study - Keeping ethanol production green

    OVERVIEW Originally published in Pollution Engineering Magazine. In an effort to reduce the world’s dependence on fossil fuels, there has been a major push towards alternatives. Ethanol has been at the forefront of this movement because it reduces greenhouse gas emissions from automobiles and its production has a positive net energy balance. The homegrown fuel also ...

  • Firebricks offer low-cost storage for carbon-free energy

    Original story at MIT News Ancient technology could be used to level electricity prices for renewables. Firebricks, designed to withstand high heat, have been part of our technological arsenal for at least three millennia, since the era of the Hittites. ...

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