JPS5636029A - Measuring device for enthalpy - Google Patents

Measuring device for enthalpy

Info

Publication number
JPS5636029A
JPS5636029A JP11188079A JP11188079A JPS5636029A JP S5636029 A JPS5636029 A JP S5636029A JP 11188079 A JP11188079 A JP 11188079A JP 11188079 A JP11188079 A JP 11188079A JP S5636029 A JPS5636029 A JP S5636029A
Authority
JP
Japan
Prior art keywords
enthalpy
data
temperature
relative humidity
outputted
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP11188079A
Other languages
Japanese (ja)
Inventor
Yuichi Goto
Yuji Kano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP11188079A priority Critical patent/JPS5636029A/en
Publication of JPS5636029A publication Critical patent/JPS5636029A/en
Pending legal-status Critical Current

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  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

PURPOSE: To enable calculation of enthalpy with high accuracy by constituting a device in such a manner that the data of temperature and of relative humidity are inputted in a microcomputer and thereby the value of enthalpy is calculated so as to be indicated or outputted outside.
CONSTITUTION: The data of temperature 6 and the data of relative humidity 7 are inputted in a microcomputer 8, and the saturation vapor pressure hs is calculated by the following formula. An approximation formula: hs=At2+Bt+C, where A= 0.035, B=-0.172, C=6.514, and t is the temperature. Therefrom, the absolute humidity x is defined as; x=0.622×(h2ψ/100)÷(760-Hsψ/100), where ψ is the relative humidity. Next, the enthalpy i is determined as; i=0.24t+(597.5+0.44t)x. The determined enthalpy i is indicated in an indicating part 12, being outputted outside 13 as occasion calls. In addition, the data of absolute humidity 11, the data of temperature 6 and the data of relative humidity 7 are also outputted as occasion demands. Thereby, the calculation of enthalpy with high accuracy can be performed.
COPYRIGHT: (C)1981,JPO&Japio
JP11188079A 1979-08-31 1979-08-31 Measuring device for enthalpy Pending JPS5636029A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11188079A JPS5636029A (en) 1979-08-31 1979-08-31 Measuring device for enthalpy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11188079A JPS5636029A (en) 1979-08-31 1979-08-31 Measuring device for enthalpy

Publications (1)

Publication Number Publication Date
JPS5636029A true JPS5636029A (en) 1981-04-09

Family

ID=14572460

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11188079A Pending JPS5636029A (en) 1979-08-31 1979-08-31 Measuring device for enthalpy

Country Status (1)

Country Link
JP (1) JPS5636029A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62146954U (en) * 1986-03-11 1987-09-17
WO1988004041A1 (en) * 1982-01-11 1988-06-02 Akifumi Katayama Enthalpy output device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5165682A (en) * 1974-10-15 1976-06-07 Johnson Controls Inc

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5165682A (en) * 1974-10-15 1976-06-07 Johnson Controls Inc

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988004041A1 (en) * 1982-01-11 1988-06-02 Akifumi Katayama Enthalpy output device
JPS62146954U (en) * 1986-03-11 1987-09-17

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