| 1. | Claim . A heat store arrangement or the utilisation of waste heat in selfpropelled plant with a view to making use of the waste heat from the cooling water circuit and/or exhaust gas of engines in a system linked with transportation, by heating solid or liquid materials, preferably water, c h a r a c t e r i s e d by means for temporary storage and for transferring the stored heat, with a capacity exceeding the system's own requirements. |
| 2. | Claim. |
| 3. | As claim 1, c h a r a c t e r i s e d in that means are provided for quick transfer of the stored heat and quick pro¬ vision of new heat storage material. Claim 3 As claim 2 relating to tractors, c h a r a c t e r i s e d in that the storage is integrated with the front weight of the tractor. Claim 4« As claim 2, c h a r a c t e r i s e d in that the stored heat is retained in replaceable containers. Claim • As claim _, c h a r a c t e r i s e d in that storage is effected in as such known manner by means of fusion heat. |
The invention relates to an arrangement for storing and later transferring waste heat, as stated in claim 1, with a view to its utilisation in stationary plant, the said waste heat being derived from cooling water and/or exhaust gas from drive engines of mobile plant pertaining to the sphere of transportation such as seagoing vessels, motor cars and tractors.
It is known that the utilisation of oil, petrol, coal, alhocol and synthetic fuels as sources of propulsion energy in the sphere of transportation entails a loss of heat which is so significant that in a situation where there is a shortage of energy resources it should give rise to serious considerations.
With methods previously used in systems associated with trans¬ portation it is scarcely acceptable that e.g. waste heat from ships is not made use of.
This wastage of heat resources from mobile plant in the sphere of transport can be reduced to a large extent by enlarging the heat collecting efficiency of the mobile system and, in conjunction with the above, by creating, in accordance with the present invention, a heat storage capacity which far exceeds the own requirements of the mobile plant and is so large that the excess heat from the cooling water of the propulsion machinery or the heat from the exhaust gases can be largely transferred after an operational storage period and via known waste gas boilers for use in stationary plant. This transfer of stored thermal energy is effected at the con¬ clusion of a voyage or during short operational stays.
Heat storage during operation can be by way of easily replaceable, suitably insulated containers, e.g. for hot water, solids or salt solutions and fusion heat or by way of permanent storage tanks with quick-release couplings for emptying and filling during sojourns so as to permit rapid transfer of the tank contents to a stationary plant and so as to reduce the period of sojourn at a port or transfer station to a minimum.
As regards relatively small fish trawlers a simple embodiment can be achieved by providing a hot water container having a capacity
of about 2 tons, which is linked to the cooling water circuit by means of quick-release couplings and is otherwise designed for convenient renewal in port.
As regards tractors it will be advantageous to mount the heat container in place of the front weights and to regulate the charge in relation to the weight required.
The heated water, the amount of which corresponds to about 1 ton per 20 litres fuel consumption, will, in the case of liners, be available in such large amounts as to make it necessary to provide for its utilisation via a long-distance heating network or for its transportation and distribution to users by means of tank trucks.
As regards relatively small mobile plant such as private cars and tractors the heat will generally be used locally for heating service water and dwellings whereas the heat from relatively large mobile plant such as a number of fishing boats or buses will be suitable for institutions or trade premises such as a number of hot houses.