Thermal measuring and testing – Calorimetry – Gain or loss of heat by heat utilizing load in path of heat...
Patent
1982-06-03
1984-09-25
Yasich, Daniel M.
Thermal measuring and testing
Calorimetry
Gain or loss of heat by heat utilizing load in path of heat...
364400, 364557, 374186, 377 25, G01K 1706, G06F 738
Patent
active
044733070
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a heat consumption registration system having a temperature sensing system of the type that is adapted to be mounted in connection with a heat emitting element and which at least comprises a power supply, temperature detector means and an amplifier to generate an electric signal which is proportional to the system temperatures of the element.
Such heat consumption registration system can typically be used in apartment buildings having a number of dwellings where the individual dwelling is heated by one or more radiators supplied with heat from a district or main heating plant or a central boiler unit. Each radiator will be provided with a temperature sensing system capable of registering the heat consumption, which forms the basis of the calculation of the heat bill chargeable on each dwelling.
Until now heat distribution meters of the evaporator type have been most used, and it is a relatively new thing to construct a heat distribution meter as a purely electric means, as is known from the German Offenlegungsschrift No. 2363489. The latter prior art comprises an electric temperature sensor or transducer mounted on each radiator, the output signal from each temperature sensor being transmitted to a central location through an extensive transmission network. The central location includes electric circuits which are adapted to calculate the heat consumption of each dwelling. However, the heat consumption calculated by this prior art is not specified, and e.g. it cannot be ascertained which radiator of the dwelling has had the largest consumption. With the increasing heating costs it is very important to a heat consumer to know how the heat consumption is distributed on the individual radiators to enable him to decide whether and where he should invest in energy saving measures.
The object of the invention is to provide a heat consumption registration system of the type mentioned which specifies the heat consumption of each radiator and which is not vitiated by the known drawbacks of evaporator meters, such as reading errors and the subsequent conversion of a read value to heat consumption which cannot be made by the individual consumer himself.
This object is achieved in that the inventive temperature sensing system is involves integration of the measured heat consumption, which is currently updated by means of the computator circuit which is dependent upon the temperature measured and the parameters with respect to the heat emission capacity of the element which are contained in the data store. Since the data store is programmable, a universal temperature sensing system can be manufactured which upon mounting on a given heat emitting element can be programmed in accordance with the physical characteristics of that particular heat emitting element. The read-out means mentioned may comprise a digit display for the visual display of the heat consumption.
The inventive temperature sensing system employs a dead zone or sensitively control band so that registration of heat consumption, e.g. caused by incident sunlight, can be avoided. Preferably, the data store includes a plurality of store cells or memory locations for recording the heat consumption in predetermined periods. For example, 12 store cells might be provided to record the consumption of their respective months, recording being only effected in the months comprised by a heating season.
Another object of the invention is to provide a system for separate registration of the heat consumption from a plurality of heat emitting elements with a view to automatic, specified calculation of the total heat consumption of several heat emitting elements, e.g. in a dwelling.
This object is achieved by the inventive system by providing a portable data accumulator having a memory and input/output coupling system to read out stored data to a printer or the like. The heat meter must be adapted to be able to cooperate with the data accumulator to provide for transmission of information from a large number of heat meters to the accumulator, whose
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Dobronyi Istvan P.
Larsen Egon C.
Eslinger Lewis H.
ISS Clorius International a.s.
Yasich Daniel M.
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