Solar Cool Air Conditioning Installation

Aircon Services has just completed their first Solar Cool installation for the Engineering Department Oxford University on the Begbroke Science Park.

Solar Cool Air Condition Unit in Oxford

The installation comprised a Mini VRF system with three indoor cassette units and the solar panel mounted adjacent to the condensing unit.

Solar Cool uses an exclusive patented process, based around the Ideal Gas Law, situated between the Compressor and Condenser. Utilising the free available energy from the sun to heat the refrigerant & subsequently reducing the workload of the compressor/s, thermo dynamics. 

As the free energy from the sun heats the refrigerant, it is provided with thermal energy, this in turn raises the internal energy (the sum of all microscopic kinetic and potential energy of the molecules). The molecules now move with a higher value of kinetic energy, which simply implies each molecule moves with a higher velocity than before.

Now the molecules collide with one another and rebound with an increased energy, moreover intermolecular forces weaken and the molecules space out further, which means an increase in gaseous volume, and therefore a naturally increased volume flow, resulting in an improved Delta T in the condenser, subsequently producing the unequalled cooling and heating process of solar thermal.

Oxford University Air Conditioning Unit InstallationIn heating mode the system works in almost the same way, but now the flow changes compared to the cooling mode. The additional free heating of the refrigerant in the solar panel allows the compressor to reduce it’s load and therefore it’s power consumption.

Dependant on sun levels, COP figures (heating capacity vs power consumption) of over 8 are possible! Again the more the sun shines, the more the solar panel takes over the compressing of the gas and the more power is saved, as the compressor now acts mainly as a pump providing the necessary cycle flow.

Due to the ultra UV absorbent design and glass vacuum tubing, the ambient external temperature has little if any impact on the temperature of the gas. The only natural element driving this positive process is the free energy provided by the sun’s rays

It has been proven to reduce annual energy consumption by up to 60%, if you would like to know more about Solar Cool or you would like to reduce your energy consumption on your next air conditioning installation call now! 0800 9989135.

Server Room Air Conditioning In Berkshire

Aircon Services were recently approached to find a more efficient cooling solution for the Main Data Room at ‘Travelport’ Head Office, Langley, Berkshire.

Their data room was being cooled using 3No. Liebert L99UA down flow close control computer room units and their corresponding Leibert HBE99 air cooled condensing units offering a combined Sensible cooling capacity of 255kW spread over 6No refrigerant circuits. The condensing units were located within a purpose built compound at ground level but across a service road. With the interconnecting refrigeration pipe work running through a trench below this service road. Over time the condensing units had become badly corroded resulting in inefficiency through lack of heat transfer. A new solution was required.
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Air Conditioning Installation In London At The Worshipful Society of Apothecaries

Aircon Services were approached to find a suitable solution to provide a comfort cooling & heating to the Great Hall at The Worshipful Society of Apothecaries a Grade 1 Listed building located within the heart of the City of London.

The Problem

Air conditioning installation in London with survey and designThe Great Hall dates back to 1671 when it was rebuilt after the Great Fire of London and is lined with Irish Oak panelling of the same age. Therefore great care & consideration was needed so as not to damage or spoil the fabric of the room whilst discreetly providing sufficient cooling & heating for seminars and meetings. 
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Aircon Services replaces the last R22 water chiller on the Oxford University Campus

Aircon Services has replaced the last R22 water chiller on the Oxford University Campus with a Daikin air cooled EWAQ150DAYN, due to the position of the unit we had to employ the services of a specialist lifting company and a mobile tower crane, the old unit was safely lifted from its base and the new Daikin unit installed.

The pipe work was altered to suit the new layout and welded in situ using our own directly employed pipe fitters, the chiller was de-commissioned on a Friday and up and running by the following Tuesday.

Martin-Baker Aircraft Company

“Aircon Services improved staff morale, and delivered cost effective Cooling.”

Graham Dumbleton, Martin-Baker

 

Martin-Baker Case Study

Martin-Baker Aircraft Company were experiencing temperatures of up to 40deg; Centigrade in various buildings at their Denham manufacturing site, and were also looking to improve their electrical efficiency. The company has a 22 acre site, making ejection seats and aviator survival equipment.

We were asked to cool various departments such as Auto Anodising, None Destructive Tests (NDT), the Kitchen (43deg; Centigrade), Sewing Room, Parachute Packing and Offices. All the departments required different approaches for the provision of ‘Cooled’ air.

We installed Evaporative Cooling and Extraction systems. This generated 100% fresh, filtered air, healthier working conditions  and around 80% savings on conventional air conditioning. We fitted each department   with a different air supply, with simple Ducts, specialized Plenums, Polymer Grilles, and bespoke Ventilation Socks.

All departments were cooled to around 21° Centigrade, including the Kitchen. The Ventilation ‘Socks’ provided cooled air virtually draft free.

Aircon Service’s Evaporative Cooling systems improved staff morale. It’s been very cost effective and should be expanded into other areas.

Graham Dumbleton, Site Manager at Martin-Baker

Water Chiller Installation

 Aircon Services has replaced the existing R22 water chiller in the Rodney Porter Building on the Oxford University Campus with a Daikin air cooled EWAQ150DAYN.

On Friday the redundant unit was de-commissioned and the R22 refrigerant reclaimed for safe disposal, the chilled water pipe work was disconnected, along with the mains power supply.

On Monday morning 07:00 the crane arrived to install the new chiller, due to the position of the unit and the surrounding buildings we had to employ the services of a specialist lifting company and a mobile tower crane, the old unit was safely lifted from its base and the new Daikin unit installed.

On Tuesday through to Thursday the pipe work was altered to suit the new layout and welded in situ using our own pipe fitters.

On Friday the system was then flushed and pressure tested and refilled with a mixture of water and inhibiter.

The following Monday the power supply was altered to suit the new layout and an external isolator fitted adjacent to the machine, this was then connected to the chiller and tested to current regulations.

On Tuesday once all the mechanical and electrical works had been completed the chiller was commissioned by the supplier Space Air Ltd.

The chiller was de-commissioned on a Friday and up and running by Tuesday the following week.

Foxprint Services Commercial Printers

“Aircon Services provided a far better environment for our staff especially in the summer months.”

Simon, Jupp, Foxprint Services

 

24-hour commercial printers Foxprint Services were having difficulties operating at temperatures of up to 26 degrees; centigrade in their 4,000 square foot Pressing Hall. Paper and ink were becoming unstable and staff were uncomfortable.

We were asked to lower temperature and improve moisture control in the Press Hall, while keeping cost and energy consumption to a minimum”

We installed a single Breezair Evaporative Cooling system. It drives 100% fresh, filtered and water-washed air, throughout the workspace, driving the hotter, drier air out of the building. We fitted simple Ducts, and just 8 specialized Plenums.

The 4,000 square foot workspace reduced to 21 degrees centigrade evenly, and the quality of print and ink increased significantly. Staff comfort levels rose too.

Aircon Service’s Breezair systems improved print stability and production quality and was less expensive than air conditioning.

Simon, Jupp, Production Director at Foxprint Services

Martin-Baker Aircraft Company – North Block

“Aircon Services systems have improved the temperature control within these rooms and saved a considerable amount of money in running costs.”;

Graham Dumbleton, Martin-Baker

North Block at Martin Baker Aircraft Chalgrove had been served by an existing LPHW system fed from an electric immersion heater running 24hr a day to maintain room conditions at 21°C, The company was concerned with the annual running costs and wished to substantially reduce them.

We were tasked to design a system that would provide heating and cooling controlled to 21°C and reduce the annual electricity consumption dramatically.

As there where multiple rooms we decided the best solution would be the installation of a Daikin VRV system with inverter technology, coupled to a ducted indoor unit to each room.

On completion the old emersion system was isolated to these rooms and the new VRV system initiated, the rooms now maintained temperature at 21°C throughout the whole year as they now have the added benefit of cooling during the summer months.

Aircon Services installed Daikin VRV systems which have improved the temperature control within these rooms and saved a considerable amount of money in running costs, despite the additional cooling load.

Graham Dumbleton, Property Manager at Martin-Baker Aircraft