Last edited 10 Jan 2025
BSRIA definitions J - Z
This list provides links to definitions created by BSRIA that have been published on Designing Buildings, along with the date added.
This page includes definitions J to Z. Click here to see definitions A to I.
See also a list of articles by BSRIA on Designing Buildings.
- Jointing compound. July 2022.
- Kinetic energy. January 2022.
- KNX. July 2023
- Lead-acid battery. January 2022.
- Life cycle cost model. July 2022.
- Life Cycle Maintenance. July 2022
- Limescale. November 2021
- Linear actuators. August 2023.
- Linear load. October 2024
- Lithium-ion battery. January 2022
- Looping. December 2023.
- LonTalk. July 2023
- LoRaWAN. October 2024
- Low temperature thermal storage. January 2022.
- Low temperature hot water. November 2021
- Lowest working pressure component. November 2022
- Luminaire. July 2021.
- Lump sum cost. July 2022.
- Machine learning. October 2024.
- Machining. September 2024
- Magnetite. November 2021
- Make-up water. November 2021
- Malware. August 2023.
- Manufacturers' drawings. June 2021.
- Maximum demand load shedding. July 2023
- Maximum working pressure. November 2022
- Mechanical interlock. December 2023.
- Mechanical tachometer. January 2024.
- Metabolic rate. March 2023
- Metallic, insulated flexible ductwork. December 2023.
- Metallic, uninsulated flexible ductwork. December 2023.
- Microbially Influenced Corrosion. July 2022.
- Microbiologically influenced corrosion. November 2021
- Microorganism. November 2021
- Milling. September 2024
- Millscale. April 2021.
- Mixed-mode ventilation. July 2021.
- Modbus. July 2023
- Modular boiler. June 2021.
- Motorised on/off valve. May 2023
- National Fire Protection Association. September 2021
- Natural convector. July 2022.
- Net positive suction head. November 2022
- Network hub. August 2023.
- Network router. August 2023.
- Network switch. August 2023.
- Neutral conductor sizing for commercial loads. October 2024
- Neural network. October 2024.
- Neutral point. November 2022.
- Neutral-to-earth voltage. October 2024
- Night setback. July 2023
- Nitrile rubber. July 2022.
- Noise rating. March 2024.
- Nominal Bore. July 2022.
- Non-critical maintenance. July 2022
- Non-linear load. October 2024
- Non-metallic, insulated flexible ductwork. December 2023
- Non-metallic, uninsulated flexible ductwork. December 2023
- Notching. October 2024
- Occupied zone. August 2022.
- OneM2M. October 2024
- Open Connectivity Foundation. October 2024
- Open loop heat pump system. January 2022
- Open protocol. July 2023
- Open vented system. November 2022.
- Operation and maintenance audit. October 2024.
- Operation and maintenance audit plan. October 2024.
- Operation and maintenance auditor. October 2024.
- Operation and maintenance audit toolkit. October 2024.
- Operational audit. October 2024.
- Optical tachometer. January 2024.
- Organisation specific maintenance. July 2022
- Orifice plate (OP) flow measurement device. August 2022.
- Overvoltage. October 2024
- Ozone disinfection. July 2022.
- P-alkalinity. November 2021
- Passivator. April 2021.
- Penetration seal. April 2021.
- Pepper pot corrosion July 2022.
- Perforated air collectors. November 2021
- PHI Low Energy Building Standard. March 2024.
- Photocatalytic filters. August 2022.
- Photoelectric control. July 2023
- Pitot tube. January 2024.
- Pipe closure device. April 2021.
- Pitting. November 2021
- Planned maintenance. March 2024.
- Plasticisation. April 2021.
- Plate heat exchanger. July 2022.
- Potential Energy. January 2022
- Power factor correction. October 2024
- Power fail actuators. August 2023.
- Power frequency variations. October 2024
- Powered flow hood. January 2024.
- Pre-commissioning. January 2024.
- Pre-functional testing. July 2024.
- Pressure and leakage testing. January 2024.
- Pressure independent control valves. April 2021.
- Pressure regulating valve. July 2022.
- Pressurisation unit. November 2022.
- Primary electricity. March 2022.
- Primary filters. August 2022.
- Primary stakeholder. June 2022
- Process carbon dioxide emissions. March 2022.
- Professional team. June 2022
- Project Haystack. October 2024
- Project success criteria. April 2021.
- Proof luminaire. July 2021.
- Proportional balancing. January 2024.
- Proportional control. July 2023
- Proportional plus integral control. July 2023
- Proportional plus integral plus derivative control. July 2023
- Prosumer. March 2024.
- Proxy server. July 2023
- Pseudomonad. April 2021.
- Pulsed input actuator. August 2023.
- Pumped drainage. July 2022.
- Pumped hydro. January 2022.
- Quarter turn ball valve. July 2022.
- Raised access floor. December 2024
- Raised access plenum floor. December 2024
- Rangeability. July 2023
- Rapid voltage changes. October 2024
- Reactive load. October 2024
- Recessed luminaire. July 2021.
- Re-circulation air. August 2022.
- Recurring cost. July 2022.
- Recycled content. March 2022.
- Reduced pressure zone valve. July 2022.
- Regulating flow rates. January 2024.
- Re-usable filters. August 2022.
- Resistive load. October 2024
- Reset control. July 2023
- Reverse cycle heat pump system. January 2022
- Rigid construction. April 2021.
- Roll filter. August 2022.
- Rotating vane anemometer. January 2024.
- Rotary actuators. August 2023.
- Rotary shoe valve. August 2023.
- Room air cleaners. August 2022.
- Room-based heat pump. July 2021.
- Rosette corrosion. July 2022.
- Run to Fail Maintenance. July 2022.
- Savings-to-investment ratio. July 2022.
- Seasonal commissioning. January 2024.
- Second fix. March 2024.
- Second party operation and maintenance audit. October 2024.
- Secondary filters. August 2022.
- Secondary stakeholder. June 2022
- Security tracking. July 2023
- Self-discharge. January 2022
- Sentinel taps. July 2022.
- Sensitivity studies. October 2024.
- Sequestrant. April 2021.
- Serogroup. July 2022.
- Service support construction. April 2021.
- Sewage heat pump. January 2022.
- Shower mixers. July 2022.
- Simulation. October 2024.
- Single opening. April 2021.
- Single-phase v three-phase ac current systems. August 2021
- Single-sided ventilation. July 2021.
- Singularity. October 2024.
- Sintering. September 2024
- Sleeve. April 2021.
- Smart actuators. August 2023.
- Smart hub. July 2023
- Smart smoke sensors. August 2023.
- Smart temperature sensor. August 2023.
- Smart thermostat. August 2023.
- Soft water. November 2021
- Solar air heating. November 2021
- Solar cooling. November 2021
- Solar water heating. November 2021
- Soldering flux. July 2022.
- Spa pool. July 2022.
- Specific fan power. July 2024
- Spring actuators. August 2023.
- Spyware. August 2023.
- Stachybotrys. January 2025.
- Stage 2 cost plan. June 2021.
- Stage 2 design report. June 2021.
- Stage 3 cost plan. June 2021.
- Stage 3 design report. June 2021.
- Stagnation. July 2022.
- Static completion. January 2024.
- Static height. November 2022.
- Static pressure. July 2024.
- Stereolithography. September 2024.
- Sterilise. July 2022.
- STL file. September 2024
- Strategic operation and maintenance audit. October 2024.
- Stop valve. July 2022.
- Stroboscope. January 2024.
- Strong AI. October 2024.
- Study period. July 2022
- Subtractive manufacturing. September 2024
- Success criteria. June 2021.
- Surface water cooling. November 2021
- Surfactant. April 2021.
- Susceptible population. July 2022.
- Suspended solids. November 2021
- Sustained interruptions. October 2024
- System boundaries. March 2022
- System expansion. March 2022.
- System lag. July 2023
- Temperature and pressure relief valve July 2022.
- Terminal. August 2022.
- Thermal anemometer. January 2024.
- Thermal response. August 2022.
- Thermoelectric actuators. August 2023.
- Thermostatic bypass valve. July 2022.
- Thermostatic radiator valve. May 2023.
- Thermosyphon. November 2021
- Three-port motorised valve. July 2023
- Three-port control valve. June 2023
- Three-port valve. June 2021.
- Total dissolved solids. November 2021
- Total pressure. July 2024.
- Total viable count. November 2021
- Transient voltage. October 2024
- Transformer. July 2021.
- Tri-generation. November 2021
- Triplen harmonics. October 2024
- Trojans. August 2023.
- Trunking. April 2021.
- Tubercle. November 2021
- Turing test. October 2024.
- Turning. September 2024
- Two-port control valve. June 2023
- Two-port motorised valve. July 2023
- Two-port valve. June 2021.
- Two-port (variable flow) control strategy. July 2022.
- Ultraviolet disinfection. July 2022.
- Ultraviolet germicidal irradiation. August 2022.
- Under-deposit corrosion. November 2021
- Underfloor void. December 2024
- Undervoltage. October 2024
- Universal input. July 2023
- Universal output. July 2023
- Up-and-down luminaire. July 2021.
- Upstream burden. March 2022.
- Vacuum relief valve. July 2022.
- Value engineering report. April 2021.
- Valve authority. March 2024.
- Valve characterisation. June 2023
- Variable gas cushion expansion vessel. November 2022.
- Variable occupancy controller. July 2021.
- Velocity pressure. July 2024.
- Virus. August 2023.
- Voltage interruptions. October 2024
- Voltage sag. October 2024
- Voltage swell. October 2024
- Waste product. March 2022.
- Waste-to-energy. January 2022.
- Water fittings. July 2022.
- Water stratification. July 2022.
- Water treatment programme. November 2021.
- Water undertaker. November 2022.
- Waveform distortion. October 2024
- Waveform distortion noise. October 2024
- Weak AI. October 2024.
- Weight sensor. November 2022.
- Witnessing authority. January 2024.
- Written scheme. July 2022.
--BSRIA
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