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BMS (Building Management System)
A BMS is an integrated data network and control system for automation, monitoring and control of HVAC, lighting and other functions in a building.
Break Tank
Break tanks are implemented in boosting systems in order to supply the system if the mains supply becomes insufficient. Tanks are also implemented in series-connected boosting systems.
BTU (British Thermal Unit)
The British thermal unit (BTU) is a unit of energy used in the power, steam generation, heating and air-conditioning industries. In scientific contexts the BTU has largely been replaced by the SI unit of energy, the joule [J].
Brackish water
Brackish water is water that has more salinity than fresh water, but not as much as seawater.
Buffer tank
A buffer tank is a storage tank used on the cold user side of an air-conditioning system. The tank is used as storage to cover peak loads or in situations when a surge in demand exceeds the capacity of the cooling system.
Butterfly valve
A butterfly valve is from a family of valves called quarter-turn valves. The butterfly is a metal disc mounted on a rod. When the valve is closed, the disc is turned so that it completely blocks off the passageway.
Calculating heat loss
The calculated transmissions loss is the sum of the heat losses from each individual section of the building
Calculating pressure loss
To select the right pump and achieve the proper balance in the system, it is necessary to calculate the pressure loss throughout the system.
Calculation of flow
In order to calculate pressure loss in a heating or cooling system it is essential to know the volume flow rate Q. The volume flow rate is based on heat demand, temperature difference, specific energy capacity, and density.
Carbon credit
A carbon credit can be used for trading in the carbon market. One carbon credit consists of one ton of CO2 (or sometimes CO2 equivalent gases).