Household metering management system with heat meters based on.NET;

The principle, testing performance and experience operation result of RM-H type digital and intelligent heat meter are introduced.

This paper introduces the designs of main risers and indoor pipe-lines of household metering central heating systems,analyses their advantages and disadvantages,points out the main points of design and installation of valves and heat meters.

In order to provide available thermophysical property parameters for fresh water fish processing,the unfreazable water,initial freezing point,apparent specific heat,enthalpy of silver carp meat and effects of NaCl content on thermophysical properties of silver carp meat during phase transition were studied by differential scanning calorimetry(DSC).

In order to provide theoretical supports for storage process of crisped grass crap meat, effects of NaCl and sucrose-NaCl mixture on thermo-physical properties including freezing point, apparent specific heat, and enthalpy of crisped grass crap meat were determined by differential scanning calorimetry (DSC) at low temperature phase transition area.

One way for confirming the surface heat-transfer coefficient is also derived from finite difference method.

Study on the Fouling Characteristic of Heat Transfer Surface

It was showed that the surface and fluid temperatures were very important to promote fouling process on heat transfer surface.

A new liquid eveporation heat transfer surface corrugated silk screen is proposed in this paper The heat transfer and flow characteristics for six kind of the screen have been investigated It is found that it can be used as an eveporative heat exchanger as the screen size is optimize