The Scanair SAHS Series Oil heat ex-changer is our highest performing stainless steel tube heat ex-changer. It is ideal for applications where deionizer water or corrosive fluids are used, and a high efficiency, compact unit is required. The heat ex changer has a superior construction with 316L stainless steel tubing expanded into copper cooling fins. The all-welded, argon-purged joints of the heat exchanger maximize its internal cleanliness, the pre cleaned internal surface eliminates fluid contamination, and the 0.028″ (0.7 mm) wall tubing ensures fluid circuit durability. The Scanair Series heat exchangers are available in straight, beaded, or 37° AN flare fittings.

Scanair brazed-plate heat ex-changers are designed for liquid-to-liquid heat transfer. Their innovative design packs maximum performance into a compact and reliable package. The herringbone construction allows for maximum heat transfer making this heat exchanger extremely efficient. The liquid-to-liquid brazed plate heat ex-changer is a highly reliable and rugged part with stainless steel sheets brazed together at the edges and at a matrix of contact points. Compatible with a wide range of fluids, we offer copper brazed for water, EGW and other common coolants.  Our nickel-brazed units are appropriate for use with deionizer water, high purity, and corrosive fluids.  High operating temperatures and pressures: Copper-brazed units can be operated at temperatures of up to 383°F (195°C) and pressures up to 450 psig (31 bar). Nickel-brazed units can be operated at temperatures of up to 662°F (350°C) and pressures up to 232 psig (16 bar).

Liquid-to-liquid heat ex-changers are up to 80-90% smaller in volume and weight than a conventional shell-and-tube design. The counter flow design utilizes stainless steel sheets stamped with a herringbone pattern of grooves, stacked in alternating directions to form separate flow channels for the two liquid streams. This allows 90% of the material to be used for heat transfer, making it extremely efficient. The plates are brazed together at the edges and at a matrix of contact points between sheets, ensuring that the heat ex-changers are highly reliable and rugged.

Scanair cold plate can be custom designed and manufactured to meet the most demanding thermal and mechanical requirements. Our cold plate experience is extensive. Scanair cold plate technologies include Aluminum vacuum brazed cold plates, copper cold plates, and Liquid cooled chassis  which consist of multiple cold plates. Large cold plates for medical and industrial applications, and everything in between. Every custom cold plate is different, but the design process is the same. Our project engineers use advanced thermal analysis software to model your heat loads and arrive at a cold plate design that meets your thermal and pressure drop performance requirements. Our manufacturing engineers ensure that the cold plate is cost-effective to build and is designed for high reliability. A component such as fittings, manifolds, hoses, and quick disconnects. We can even incorporate sensors, controllers, and other accessories into the cold plate design. These may be customer supplied or we can source them. Either way, your cold plate arrives ready to drop into your system, saving you time and energy.

The drive towards higher powers and more compact packages is making liquid cooling a necessity in many applications.  Hydraulic power pack, Centrifugal blower bearing cooling, this presents many challenges, particularly to those new to liquid cooling. We manufacture all the thermal components in a cooling loop, so we view the cold plate as part of a larger system rather than in isolation. This in-depth understanding results in more cost-effective and innovative solutions to your thermal challenges.

Heat pumps are more effective for heating than for cooling if the temperature difference is held equal.  This is because the compressor’s input energy is largely converted to useful heat when in heating mode, and is discharged along with the moved heat via the condenser.  But for cooling, the condenser is normally outdoors, and the compressor’s dissipated work is rejected rather than put to a useful purpose.

When comparing the performance of heat pumps, it is best to avoid the word “efficiency” which has a very specific thermodynamic definition.  The term coefficient of performance (COP) is used to describe the ratio of useful heat movement to work input.  Most vapor-compression heat pumps utilize electrically powered motors for their work input.  That is, one joule of electrical energy will cause a resistance heater to produce one joule of useful heat, while under ideal conditions, one joule of electrical energy can cause a heat pump to move much more than one joule of heat from a cooler place to a warmer place.  Sometimes this is inappropriately expressed as an efficiency value greater than 100%, as in the statement, Scanair heat pumps operate at up to 400% efficiency!”  This is incorrect term, since heat pump efficiency is measured in another way.  However it is correct to declare system efficiency of 400%.  The effective heating per watt of electric energy used can be up to 450% as much as resistance heating however, making this more an issue of semantics than science.

External energy is needed to drive the heat pump.  Theoretically, the total heat delivered by the heat pump is equal to the heat extracted from the heat source, plus the amount of drive energy supplied.  Electrically-driven heat pumps for heating buildings typically supply 100 KWh of heat with just 20 – 40 KWh of electricity.  Many industrial heat pumps can achieve even higher performance, and supply the same amount of heat with only 3 – 10 KWh of electricity.  Almost all heat pumps currently in operation are either based on a vapour compression.

In plumbing applications, a heat pump is used to heat or preheat water for swimming pools or domestic water heaters, commercial building water heating. The great majority of heat pumps work on the principle of the vapour compression cycle.  The main components in such a heat pump system are the compressor, the expansion valve and two heat ex-changers referred to as evaporator and condenser.  The components are connected to form a closed circuit.