Heat capacity of secondary fluid (KJ/kgK) Eref Reflective energy of concentrator(kJ) Ha Suction head of pump (mce) ha Suction height (m) Hp Hydraulic head of pump (mce) Hr Discharge head of pump (mce) Ib Incident solar radiation (KWh/m2) Leq Equivalent length (m) Pa Suction pressure...
Figure 4. Stepper motor equivalent circuit (a) d axis and (b) q axis. The expressions for the electrical power input to the motor can be utilized to obtain the electromagnetic torque as shown below: 𝑃𝑜𝑤𝑒𝑙𝑒𝑐=𝑣𝑑𝑖𝑑+𝑣𝑞𝑖𝑞=𝑅𝑚(𝑖2𝑑+𝑖2𝑞...
This product includes retrievals of wind speed and direction (equivalent neutral wind at 10 m) within a wind vector cell of size 12.5 km by 12.5 km. Sea surface temperature (SST) is routinely observed from space with the use of microwave and infra-red sensors. Microwave instruments have the...
Deadlines are somewhat fluid initially, but we typically work towards completion of tasks by the start of fall quarter each year. We remain flexible because we understand, with the exception of the service manager, all tasks the team members undertake fall into the "other duties as assigned" ...
and𝜌𝑠ρsis the solid density [43]. The fluid velocityuis included in the convection term.𝜅𝑒𝑓𝑓=𝜙𝜅𝑤+(1−𝜙)𝜅𝑠κeff=ϕκw+(1−ϕ)κsdenotes the equivalent heat conductivity of a porous medium,𝜅𝑤κwis heat conductivity of water, and𝜅𝑠κsis th...
4.2. Organic Matter Graphitization The equivalent vitrinite reflectance (Ro) of organic matter in low-resistivity shale was measured in situ by using the Raman imaging and scanning electron microscopy (RISE) system. Measured Ro values vary greatly between FV samples and NFV samples, with average ...
In the study of the polymer MS under different conditions, the size of polymer-coil can be seen as an equivalent sphere of diameter Dh, and the radius of microspheres is regarded as Rh (hydrodynamic radius) of polymer molecular [13]. The Rh being: Rh = KBT 3πηD (1) where KB ...
(repair/year) Equivalent repair rate of the Pracal system (failure/year) Mean availability of the Pracal system Failure rate due to breakdown of the rotary cooler (failure/year) Failure rate due to breakdown of the electric motor (failure/year) Failure rate due to the starting-stopping ...
gas accidents decreased by 66.8%, it makes underground coal-bed methane (CBM) extraction more efficient with the average gas extraction rate were respectively 45.13 m3/t and 62.4%, the highest in China, and it reduces greenhouse gas emissions equivalent to 3.5 million tonnes of carbon dioxide. ...