Title:
SWITCHING HEAT ACCUMULATIVE TYPE HEAT EXCHANGER
Document Type and Number:
Japanese Patent JP2678964
Kind Code:
B2
Abstract:
PURPOSE: To provide a switching heat accumulative type heat exchanger in which a high heat transfer amount as well as a temperature efficiency can be assured, its entire volume can be made small, its performance is high and its size is compact.
CONSTITUTION: A first and a second switching heat accumulative type heat exchangers in a high period switching type heat accumulation combustion system are constructed such that a switching time τ of a four-way valve is set to be less than 60 seconds, and they have a clearance rate ε indicating a maximum value (Q/V)max in a volumetric efficiency (Q/V). A temperature efficiency ηt is st to a set value ranging from 0.7 to 1.0. A heat transfer coefficient and a heat transfer area are set such that the temperature efficiency calculated as a function of a heat transfer coefficient (h), a heat transfer area A and a switching time τ may correspond to the aforesaid set value. The first and second heat exchangers have a pitch P and a wall thickness (b) of a cell wall corresponding to the aforesaid clearance efficiency, heat transfer coefficient and heat transfer area.
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Inventors:
Ryoichi Tanaka
Matsuo Mamoru
Matsuo Mamoru
Application Number:
JP691193A
Publication Date:
November 19, 1997
Filing Date:
January 19, 1993
Export Citation:
Assignee:
Japan Furness Industry Co., Ltd.
International Classes:
F23L15/02; F28D17/02; F28D19/04; (IPC1-7): F28D17/02
Domestic Patent References:
| JP4251190A | ||||
| JP277476U | ||||
| JP223950Y2 |
Attorney, Agent or Firm:
Yoshihiko Shimazoe