Link to document:
Status
Electronic Resource
Publication
Aug 1984
Language
Library's review
ABSTRACT:
This paper describes a Ringbom Stirling engine designed and built to demonstrate overdriven mode operation. The overall size of the engine is roughly comparable to two sets of last year's IECEC proceedings but far lighter in weight. It can operate on the thermal energy in a few cups of hot
This paper describes a Ringbom Stirling engine designed and built to demonstrate overdriven mode operation. The overall size of the engine is roughly comparable to two sets of last year's IECEC proceedings but far lighter in weight. It can operate on the thermal energy in a few cups of hot
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water for long periods. Clear plastic and glass were employed extensively in the construction of the engine which provides a clear view of the inner moving parts. The engine runs steadily at speeds low enough for direct visual observation of the cycle of operation while operating between temperature differences ranging from 90 C down to 7 C. The analytic design of the engine followed a first order mathematical model developed earlier by the author. A new concept, the critical temperature ratio, which turns out to be of special importance in the design of Ringboms operating at small temperature differentials, is discussed in this paper in full generality. Details of the performance of the engine are also presented here. Show Less