Power generator unit in combined heat and power generation techn

Details Power generator unit in combined heat and power generation techn Power generator unit in combined heat and power generation techn

1992-11-09

1994-06-21

Pellinen, A. D.

Prime-mover dynamo plants

Heating plants

290 1R, F02G 502

Patent

active

053230612

DESCRIPTION:

BRIEF SUMMARY
BACKGROUND OF THE INVENTION

1. Field of the Invention
This invention deals with a combined heat and power generator unit which includes an internal combustion engine which powers an electric generator. The waste heat of the internal combustion engine is utilized via one or several cooling water circulation systems (motor waste heat, exhaust heat, generator waste heat). These circulation systems are used to heat water. The simultaneously generated electricity is either used by the operating authority--wholly or partially--or is sold to the power company.
2. Brief Description of the Prior Art
Presently known combined heat and power generators have been used mainly for community or commercial purposes, due to the motor size used.
For these applications, individual machine rooms have usually been built; therefore, there were no stringent requirements for soundproofing of the units. The units were mostly "open" (accessible) machines with only the exhaust sounds of the internal combustion unit being dampened using a muffler.
Smaller units, which are on the market in small numbers, have been encapsulated and soundproofed using commercially available soundproofing materials. Therefore sound insulating elements of different designs have been implemented to reduce the noise level.
In all cases one of the two main purposes of the combined heat and power generation units is the generation of heat. This heat is stored "somehow" in all cases because the generation and the usage (of the heat) occurs in many cases, at different times and does not match the demand.
The dampening of soundwaves is a linear function of the weight of the walls being hit by the sound waves. The higher the weight of these walls, the better the sound attenuation.
On all combined heat and power generation units one disadvantage is that one can generate heat and electricity, however the cost for soundproofing alone is relatively high.
Another disadvantage of the known combined heat and power generation units is that the generation of warm water for producing potable water and for heating water is rather costly because the equipment required is located externally from the heat and power generation unit--and they therefore need lots of room and big buildings.


SUMMARY OF THE INVENTION



Object of the Invention

The following invention therefore has the object to expand the combined heat and power generation with heating and potable water as explained here initially, such that the units can be manufactured at less cost and use less room.


Summary

The solution of this task is done by the characteristic features of claim 1. According to this it is significant that the units of the combined heat and power generator are installed into one housing, which in itself is integrated into a hot-water tank.
A characteristic feature of the present invention therefore is that the units for the combined heat and power generation now are no longer separate from the heating water and/or potable water, rather these units are in one housing, which is itself integrated into a hot-water tank. This achieves the advantage that the heat generated by the units of the combined heat and power generation is injected by simple means into the surrounding hot-water tank, where different heat exchanging mechanisms exist, which complement and assist one another.
On the one hand the radiation heat generated from the combined heat and power generation units is introduced into the surrounding hot-water tank. Similarly, the exhaust heat could also be introduced into the hot-water tank.
This results in an optimum heat exchange from the combined heat and power generator's produced waste heat into the hot-water tank.
Another significant advantage of the present invention is that by the integration of the frame, which houses the combined heat and power generators, an optimal sound insulation is ensured. In this invention it is required--as with present state of the art--to insulate a hot-water tank for heating water from a hot-water tank for potable water and to arrange these on separat

REFERENCES:
patent: 3805082 (1974-04-01), Murray
patent: 4657290 (1987-04-01), Linden
patent: 4736111 (1988-04-01), Linden

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