A high efficiency glandless circulating pump is a component of a heating and air conditioning system that allows the system to perform with increased efficiency...

(/ˈhɛpə/, high-efficiency particulate air) filter, also known as high-efficiency particulate absorbing filter[citation needed] and high-efficiency particulate...

heaters. Because of their high efficiency and the increasing share of fossil-free sources in electrical grids, heat pumps are playing a key role in climate...

pump cycles or refrigeration cycles are the conceptual and mathematical models for heat pump, air conditioning and refrigeration systems. A heat pump...

Ground source heat pump Heat exchanger Heat pipe Heat pump Heating film Heating system HEPA High efficiency glandless circulating pump High-pressure cut-off...

A scroll compressor (also called spiral compressor, scroll pump and scroll vacuum pump) is a device for compressing air or refrigerant. It is used in...

other heating systems. The efficiency of a heating system is typically measured by its AFUE (Annual Fuel Utilization Efficiency) rating. Higher AFUE ratings...

or gas to heat). By contrast, an electric heat pump used for home heating typically has an efficiency well above 100%, expressed as its coefficient of...

exchange, based on natural convection, which circulates a fluid without the necessity of a mechanical pump. Thermosiphoning is used for circulation of...

in a heat recovery configuration without affecting efficiency, and switch to heating mode (heat pump) during winter without additional equipment, all of...

electromagnetic pump to compress a working gas, pentane. Although the refrigerator was not a commercial success, the Einstein–Szilard pump was later used...

air filters in more detail than other ratings. For example, often a high-efficiency particulate air (HEPA) filter is impractical in residential central...

working fluid increases the thermal efficiency of the solar panel but decreases the performance of the heat pump, and consequently the COP. The target...

tend to float on top of the water inside the boiler. Circulating pump: It is designed to circulate water back to the boiler after it has expelled some...

pressure-controlled valve. A thermal expansion valve is a key element to a heat pump; this is the cycle that makes air conditioning, or air cooling, possible...

A ground source heat pump (also geothermal heat pump) is a heating/cooling system for buildings that use a type of heat pump to transfer heat to or from...

with hot water from a boiler or other heating device by gravity feed, a pump, or natural convection. As it gives out heat, the hot water cools and sinks...

for sites which have limited space and can offer high energy efficiency levels. These units feature high quality components including scroll and screw compressors...

for people designing HVAC systems is the efficiency, i.e., the consumption of electricity and water. Efficiency is optimised by changing the design of the...

operated in the correct circumstances, a heating system can achieve high efficiency (greater than 90% on the higher heating value) by condensing water...

ambiance they create and for heating a room. Modern fireplaces vary in heat efficiency, depending on the design. Historically, they were used for heating a dwelling...

Ahn GR, Son SY, et al. (2014). "Mold Occurring on the Air Cleaner High-Efficiency Particulate Air Filters Used in the Houses of Child Patients with Atopic...

incompatible metals (aluminum, cast iron, copper, brass, solder, etc.). Water pump seal lubricant is also added. Antifreeze was developed to overcome the shortcomings...

reduce its infrared conversion efficiency. With new untarnished reflectors, radiant tubes have a downward radiant efficiency of about 60%. (The other 40%...

reducing pump energy consumption. It is possible to recover some of this energy in the form of heat given off by the motor if a glandless pump is used...

ambient temperatures with a high dew point temperature. In cold climates, the process is less effective. Highest efficiency is reached above 20 °C (68 °F)...

recommendation regarding risk of exposure to high indoor temperatures is only "conditional". Minimal-risk high temperatures range from about 21 to 30 °C...

evaporative surface area Can be installed in hard water situations Maintains efficiency throughout lifespans Disadvantages include: Higher price Water evaporation...

meaning higher efficiency. In the US, chiller efficiency is often specified in kilowatts per refrigeration ton (kW/RT). Process pump specifications that...

energy for phase transition from liquid to vapour. Within evaporators, a circulating liquid is exposed to an atmospheric or reduced pressure environment causing...