Single-phase Convective Heat Transfer in Microchannels: a Review of Experimental Results

Micromachined flow sensors—a review

Single-phase fluid flow and mixing in microchannels

Heat transfer in micro-channels: Comparison of experiments with theory and numerical results

Flow Measurement Handbook is an information-packed reference for engineers on flow measuring techniques and instruments. Striking a balance between laboratory ideal and the realities of field experience, this handy tool provides a wealth of practical advice on the design, operation, and performance of a broad range of flowmeters. The book begins with a brief review of fluid mechanics principles, how to select a flowmeter, and a variety of calibration methods. Each of the following chapters is devoted to a class of flowmeters and includes detailed information on design, applications, installation, calibration, operation, and advantages and disadvantages. Among the flowmeters discussed are orifice plate meters, venturi meters and standard nozzles, critical flow venturi nozzles, positive displacement flowmeters, turbine and related flowmeters, vortex shedding and fluidic flowmeters, electromagnetic flowmeters, ultrasonic flowmeters, and coriolis flowmeters. Also covered are mass flow measurements using multiple sensors, thermal flowmeters, angular momentum devices, probes, and modern control systems. Many chapters conclude with an appendix on the theory behind the techniques discussed.

Flow Measurement Handbook: Industrial Designs, Operating Principles, Performance, and Applications

A low-cost silicon sensor for measuring the mass flow rate of gases and liquids has been developed. Its operation is based on heat transfer from heated resistors to a flowing fluid (electrocaloric principle). The difference between the temperature of the sensors on the chip, the heating power, and the heater temperature can be used to measure the mass flow. It is important to realize that sensors are produced in silicon through the usage of micro-technology. Nitrogen and water are used for testing the sensor. The sensor has a high dynamic response and is suitable for dynamic fluid measurements. The possible measuring flow rates range from 0 to 500 ml/min for gases and 0 to 500 or 0 to 10 ml/min for liquids.

Low-cost silicon sensors for mass flow measurement of liquids and gases

Experimental investigation, numerical simulation and analytical modelling of forced convection are presented. An electrocaloric mass-flow sensor is the object of investigations. The convective heat lost and the influence of the flow over the temperature field have been measured and calculated. The influence of flow regimes over forced convection in a microfluid system is shown. Applications and further work are discussed at the end of the paper.

R. Kiehnscherf

Papers

Low-cost silicon sensors for mass flow measurement of liquids and gases

Investigation of forced convection in microfluid systems