ICAX speaks at Energy Solutions 2013    London Olympia    9-10 October

ICAX has been invited to explain how Interseasonal Heat Transfer can help you address the key issue of combating global warming in a practical way that is in tune with the natural environment.

Protecting and enhancing the environment sits at the heart of sustainability. With the growing awareness that the built environment accounts for nearly half of the UK’s CO2 emissions; innovative, green solutions for designing, constructing and using buildings are in urgent demand.

ICAX answers that demand by providing Interseasonal Heat Transfer which heats buildings in winter without burning fossil fuels by exploiting Ground Source Energy. Surplus solar energy is captured by Asphalt Solar Collectors and stored in ThermalBanks in the summer for release into buildings in winter using a ground source heat pump.

ICAX can help you achieve sustainability in the built environment by storing ground source energy in Thermalbanks.

Edward Thompson is speaking at Energy Solutions 2013 on:

Integrating solar thermal collection & seasonal heat storage to improve ground source heat pump efficiency. The range of subjects covered by the speakers will include:

Energy Solutions Expo is the UK’s fastest growing energy management event and the only major energy exhibition to be based in London. Learn more or register at Energy Solutions Expo.

Ground Source Energy

Ground source energy is a renewable source of energy which can be used for heating buildings. Architects, consultants and building owners have realised that ground source energy can be exploited the whole year round to provide significant reductions in carbon dioxide emissions and heating and cooling costs.

Heat can extracted from the ground via fluid circulating through an array of pipes in the ground to provide heating to buildings in winter. The ground acts as a "heat source". The ground can also be used as a "heat sink" for heat extracted from a building in summer in order to provide cooling. For the ground to be used as a ThermalBank in this way it is necessary to ensure that there is a balance of heat extracted and heat deposited in the ground over the course of the year.

Thermal Modelling of the complete system is necessary to ensure that this balance is achieved in a sustainable way over the years. If heat is extracted for space heating purposes without any heat being deposited (from cooling the building in summer) there is a risk that the ground temperature will fall each year and the heat pump will cease to be efficient – it may even "lock up". The solution is to collect solar energy in the summer and transfer heat to the ground in advance of the heating season: this is the essence of Interseasonal Heat Transfer and enables the heat pumps in an ICAX Skid to extract heat more cheaply and more efficiently than in an unassisted heat pump installation.

Heat collection for Ground Source Energy

Surplus solar energy can be collected in summer to boost ground source energy in winter by using Asphalt Solar Collectors, Solardec Watertight Collectors or standard solar thermal collectors. The asphalt solar collectors and Solardec can also be used as heat rejectors to disperse heat in systems of Natural Cooling. The most effective combination is found in Interseasonal Heat Transfer which utilises ground source heating and cooling in one integrated system.

Heat distribution from Ground Source Energy

Having extracted heat from the ground using a heat pump, there are various different mechanisms for distributing heat within a building. Because a heat pump is most efficient when delivering warmth – at around 40°C – instead of heat – at around 70°C, it is best to use a distribution system that matches these lower output temperatures. Underfloor heating is ideal, but other options like TermoDeck and VRF fan coil units can also be very effective, as can direct supply to air handling systems.

Energy Solutions Expo 2013 is being held in conjunction with M&E - The Building Services Event

See Ground Source Heating      See Ground Source Cooling     Ground Source Energy