Here an
invention description is given for review, which is now at the stage of
patenting. Formula of the invention and application number are given at the end
of the page.
Currently I
am looking for an investor, partner or buyer for the invention (up to 90% of
property rights on future patent) at a cost of ten times less than the possible
costs after obtaining the patent. Preliminary negotiations at
giharevalx@gmail.com.
The point
of the invention - a method to increase
participation of working body of a heat engine, (refrigerator, heat pump) in the heat exchange processes by
creating a forced convection (gas or liquid streams) within the working body by
means of devices located in the working body.
For these purposes one may use
fans or pumps located in the working body, and other devices designed to create
a gas or liquid flows
What
gives this "increase participation of working body of a heat engine "?
It depends on the type of heat engine - this can be an increase in capacity
related to engine size or simplifying the design of heat exchangers. Here I
will give a couple of examples.
Stirling engine
Normally, on
schematic image of Stirling engines work, gas in the cylinder is shown equably
heated / cooled over the entire volume, but in practice it is not like this,
because gas thermal conductivity is quite low and conditionally heating gas
before its displacement into the cooling area can be represented as follows:
So, only part of the gas is heated and works. The same happens when
cooling. In the picture a simplified diagram of heat exchange is given -
in fact, it is much more difficult. During the process of the machine
pistons movement flows of gas appear, which improve heat transfer. And
the faster the pistons move in the cylinders, the greater flow of gas
they create and the more equable and complete the gas heating goes.
However, even if the eddy flows created by the pistons are sufficient
for equable heat transfer, they occur only during the gas getting to
heating or cooling area, and in such displacement process there are no
such gas streams and only gas located at the cylinder wall is heated.
Thus, in any piston design of the Stirling engine heat capacity of
working body (gas) is not fully utilized. It especially concerns engine
with large diameters and pistons stroke, with small gas pressure,
working at small temperature differences and low speeds.
Maximum utilization of the working body heat capacity increases the
engine power at the same engine size. That is, placement of some device
(fan, pump), creating eddy flows, in the working body results in an
improved heat transfer (completeness, acceleration). And the creation of
forced convection in the working body can increase engine power.
Simplifying the design
of heat exchangers and condensers.
Existing heat exchangers used, for instance, for recovery or
regeneration of heat or its removal of surplus after steam or gas
turbines to heat water or steam condensation, have a variety of designs.
But they share a basic principle - increase of the ratio of heat
transfer area to the volume of the working body. Anyway, such heat
exchangers are quite complex to manufacture and claim resources. The use
of devices that create flows in the working body, simplifies the design
of heat exchangers. In fact, they can be performed as large containers
"washed" by coolant. In this case their manufacturing and service are
easier, a greater range of pressures that such heat exchangers can
withstand.
A patent
application number 2016131416, Aug, 01, 2016 (Russian
Federation)
Title of the invention
The use of forced convection in the working body of a heat engine (refrigerator, heat pump)Formula of the invention
1. A method of increasing participating of working body of heat engine (refrigerator, heat pump) in the heat transfer in the process of heating or cooling, which consists of creating a forced convection within the working body by the use of additional devices or changing design of existing nodes of the heat engine (refrigerator, heat pump), which results in creating a forced convection in the working body.
2. Creation of forced convection within the working body of a heat engine according to claim 1, using fans or pumps positioned within the working body in the areas of heating or cooling of the working body.
3. Creation of forced convection within the working body of a heat engine according to claim 1, using fans disposed within the working body, outside areas of heating or cooling of the working body, through connecting tubes conveying the working body from the heating area to cooling or back to the same area, creating working body flows in the outlet to the heating or cooling area.
4. Creation of forced convection within the working body of a heat engine according to claim 1, using a pump pumping over working body from the heating or cooling area back into the same area, creating flows of the working body at the outlet of the pump in the heating or cooling area.
5. Creation of forced convection within the heat engine working body according to claim 1, by increasing the working body flow rate as it enters the heating or cooling area, by reducing the holes or gaps in the inlet area.
6. Creation of forced convection within heat engine working body according to claim 1, by increasing the working body flow rate as it enters the heating or cooling area by partial overlap of holes or gaps in the inlet to these areas, implemented by means of valves or taps.
7. Creation of forced convection within heat engine working body according to claim 1 by power pistons or displacer piston and performing these pistons’ surfaces as ribs or blades.
