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Future By Energy

Ground Source Heat Pumps (GSHP)

Ground source heat pump (GSHP) technology is already widely used in America and several European countries. Diverse applications include space heating, water heating, heat recovery, space cooling and dehumidification in both the residential and commercial building sectors.
The technology makes use of the energy stored in the Earth’s crust, which comes mainly from solar radiation. Essentially, heat pumps take up heat at a certain temperature and release it at a higher temperature. This is achieved by means of ground collectors (coils), in which a heat exchange fluid circulates and transfers heat via a heat exchanger to the heat pump. The cycle is driven by the temperature difference between the ground and the circulating fluid.
A system that would supply 50% of the space and water heating demand of a typical house would need 80-100m of ground coils. Different space configurations of piping are possible depending on the available land, soil conditions and excavation costs:

• Horizontal collectors require a relatively large area of land free from rock. They are most appropriate for small installations, and particularly for new build. The pipes are buried in trenches 1-2m deep. minimum distances should be maintained in order to allow for good thermal exchange.

• Vertical collectors are used where land is limited and are suitable for most soil and rock types. Vertical borehole heat exchangers could also be of various configurations (single, double, U-shaped, etc.) with typical diameters of 0.1-0.2m and between 15m and 180m deep. Minimum spacing between adjacent boreholes of 5-15m should be maintained to prevent thermal interference.

• Parallel and series connection can be used where there is more than one horizontal loop or borehole.

Almost all heat pumps in operation are based on the vapour compression cycle, which combines efficiency, safety and reasonable cost. The effectiveness of heat pumps is measured by the ratio of the heating capacity to the power input, referred to as the Coefficient of Performance (COP), and only calculated ratios of more than 1.0 should be considered.
The heat exchanger is a very important component, and small temperature differences can have a critical effect on the efficiency of the systems. Larger exchangers provide greater heat transfer but entail higher cost. Heat pumps are also reversible and alongside heating can provide space cooling in the warm season.


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Future By Energy
Future By Energy

Future BY Energy

Future BY Energy Ltd is a professional energy assessor company with a rich understanding of the UK energy market. We offer independent professional expertise in mechanical engineering for all domestic and commercial buildings and strategic energy advice. As expert designers and specifiers of heating-cooling systems, we pride ourselves in finding affordable energy efficient solutions for new and existing buildings. We have top level experience in a wide range of building types in both commercial and domestic sectors.
As registered energy assessors we provide:

• Domestic Energy Performance Certificates (EPC)
• SAP calculation and predicted energy assessment for new built dwellings (EPC-SAP/PartL)
• SBEM calculation for Commercial buildings (SBEM/Part L)
• Commercial Energy Performance Certificates (EPC)
• Display Energy Certificates for Public buildings (DEC)
• Air Conditioning Inspections (TM44)
• Asbestos surveys and consultancy
• Air permeability-Leakage test
• Sound test and acoustic consultancy

Please do not hesitate to contact, Behdad Yazdani, on 02081440820, who will be pleased to advise you.