A jockey pump is a small pump connected to a fire sprinkler system in order to maintain a certain pressure in the sprinkler system, and sized to ensure that if a fire-sprinkler is activated, there will be a system pressure drop.
The Kvs value expresses the amount of flow in a regulating valve at a fully-open valve position and a pressure differential of 1 bar. The Kvs value is a special case of the Kv value, which indicates the flow at a given valve position and a pressure differential of 1 bar.
The Kv value expresses the amount of flow in a regulating valve at a given valve position with a pressure loss of 1 bar. The special situation with a fully open valve determines the kvs value.
The heat conductivity of a material is known as its lambda value. The lambda value is used for thermal calculations on buildings and thermal components.
Latent cooling load is a measure of the amount of energy that is necessary to dehumidify the air in a building, for example, regardless of the outdoor humidity. Cooling load needs to be considered when a cooling system is being dimensioned.
The laws of affinity express the mathematical relationship between flow, pump speed (rpm), head and power consumption for centrifugal pumps.
Air conditioning and heating systems in buildings that have special inventories or which are especially vulnerable to the effects of water damage can have leakage-protection installed. The system automatically monitors flow in supply and return pipes. In case of divergences, it shuts off both supply and return.
Legionella bacteria can be the cause of two illnesses in humans: Legionnaires’ disease, an infection that produces pneumonia and Pontiac fever, which resembles acute influenza. When designing air conditioning systems, how to reduce the risk of bacteria growth must be considered.
When designing cold water systems water temperature, retention time, pipe material and regular system maintenance is of great importance in order to prevent micro bacterial growth.
Cooling water in cooling towers for air-conditioning purposes are often subject to microbacterial growth. A disinfection system should always be installed.
