- 100% Humidity is water vapor, called saturated air, the human body's relative humidity range of 20%---60%, when the indoor humidity is less than 20% , easy to generate static electricity, especially on the computer, more than 60% on the wet
- winter suitable temperature 24.5+-1.5< Span style= "font-family: Microsoft Jacob Black; font-size:12pt; "lang=" ZH-CN ", Summer suitable temperature 22+2
- 1bar=100kpa=0.1mpa=10 kilogram force
- Evaporator and cooler is mainly for the refrigerant, said such a sentence to understand, frozen water into the evaporator to evaporate the refrigerant, cooling water into the cooler to cool the refrigerant. Make cold water become heat called condenser, make hot water cold called evaporator
- Pump performance parameters: Flow, head, efficiency, speed, supporting power
- Centrifugal chillers operate under low load and are prone to surge and disadvantage to centrifuges.
- Nominal pressure (PN): Compressive strength for long-term stable operation at a certain temperature,Mpa
- kcal: KCAL, the unit of heat, is the heat required to increase the temperature of 1 kg of water once.
- Specific heat unit: The specific heat of the air is 0.24kcal/1 kg '℃, the specific heat of the water is 4.19 kj/1 kg '℃
- COP Performance Factor: The amount of cold or heat produced in refrigeration (heat) is only comparable to the power consumed.
- Head: Unit weight The energy obtained by the liquid through the pump is called lift, which is approximately the pressure difference between the pump outlet and the inlet.
- The existing building automation method does not solve the problem, need academia to pay attention to the problem: there is no low-cost control model of the method, control algorithm availability and interpretation between the contradiction between the optimization control algorithm robustness, industrialization of general control algorithm development, optimization algorithm evaluation and risk control.
- a pxc00 can drag 2000 points, the largest ever done 5000 multiple points
- PXC24. Ef. A and PXC16. Ef. A actually up to 200-300 points, theoretical values up to a maximum of Five points
ba--Debugging Experience Notes
