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Saved by uncleflo on December 18th, 2019.
Choose the correct components to refrigerate an insulated cold box. Air conditioning units and products for marine and boats.
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Saved by uncleflo on December 18th, 2019.
Self-contained cooling units are the best solution for boats with up to three cabins. Every cabin is equipped with one unit which is spec’ed according to the cabin’s size, cooling/heating demand and location of the boat. Comprehensive range of self contained units for all size of boats.
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Saved by uncleflo on December 18th, 2019.
Geothermal energy is the second most abundant source of heat on earth, after solar energy. It is the natural heat energy stored in the earth. This energy is contained in about 260 billion cubic metres of rocks and metallic alloys, just below the outer surface of the earth, that are at or near their melting points (Lanterman & Lee, 2007). Calculations show that the Earth, originating from a completely molten state, would have cooled and become completely solid if the only energy input was that of the Sun, so it is believed that the ultimate source of geothermal energy is the decay of naturally radioactive isotopes (Dincer et al., 2007). The thermal energy from the earth continuously flows outwards. This heat transfer from the core to the surrounding mantle is principally via conduction. When the temperature and pressure of the system becomes high enough, some of the rocks that make up the mantle melt and form magma. As the liquid magma is less dense than surrounding rocks, it slowly rises, convecting thermal heat towards the earth’s crust (Lanterman & Lee, 2007).
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Saved by uncleflo on December 18th, 2019.
Heat is stored by the thermal mass of the ground of water thermal. There are two types of heat sources: In the UK just a few metres below our feet the ground keeps a constant temperature of about 11-12°C throughout the year. The Earth’s internal heat was originally produced during accretion. Since then heat has been produced by the radioactive decay of elements such as uranium, thorium and potassium. Due to its high enthalpy, this type of heat is often harvested in volcanic areas for electricity production and large district heating. The majority of heat stored right in the Earth’s surface comes from the sun. This heat is widely available, and because of its low enthalpy, it is often harvested for local heat pump applications.
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Saved by uncleflo on December 18th, 2019.
Cooling and air-conditioning installations utilize the change of cooling agent parameters (pressure, temperature and state) when it circulates between the evaporator and the condenser in the cooling system. The cooling agent circulates driven by the refrigerating compressor. The refrigerant absorbs heat by evaporation in the evaporator, then it gives up heat when vapour is condensed in the condenser. There are many types of refrigerants (water, carbon dioxide, ammonia), however there is one special type of low-boiling hydrocarbons, called freons. Flexible freon hoses are widely used in air-conditioning systems of various vehicles (cars, machinery, trains, trams) as well as in smaller installations of industrial cooling. In these installations, freon (e.g. R134a, R1234yf) mixed with compressor oil (e.g. PAG synthetic oil) acts as a refrigerant. It circulates in the system where it undergoes continuous pressure and temperature fluctuations. Therefore, requirements concerning freon hoses are so high. It is essential for the system to be perfectly tight as freon is very penetrating, expensive and harmful to the environment. It must be highly resistant to pressure, temperature, chemicals and stop humidity from permeating the hose wall. It concerns automotive air-conditioning in particular because there, the freon hose operates in the engine compartment, tightly packed and bent, in high ambient temperature conditions, exposed to vibrations and in contact with car fluids.
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Saved by uncleflo on December 18th, 2019.
PHC supply a large range of refrigerant gases for professionals in the air conditioning and refrigeration industry. We stock all popular refrigerants including R134A, R404A, R407C, R410A in addition to OFN, and supply these and R32, R404A, R407C, R410A, R417A and R422D at competitive prices. We also provide a reclaim/recovery service in compliance with hazardous waste regulations, offer advice on the selection of refrigerants to replace R22, and supply safety data sheets and technical data for all products supplied.
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Saved by uncleflo on December 18th, 2019.
Some of the units we offer do not have any pipe connections they are all in one units from the Prem-i-Air range or window unit systems. This makes them ideal for a DIY installation. However if you are a competent DIYer or you are in the construction trade by using our commissioning service you will be able to install many of the smaller split systems we offer. By using our unique easy to install ‘Flexi-quick’ pipe or with standard copper coils & installation kits, we will supply everything you need for your installation. Then when you are ready for the final connection & commissioning testing to be done, simply give us a call.
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