Methods for assessing thermal performance of boilers for steam, hot water and high temperature heat transfer fluids Concise procedure

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

30-06-1987

Publisher

British Standards Institution

Foreword
Committees responsible
Method
1. Scope
2. Definitions
3. General
4. Instrumentation
5. Procedure
6. Calculations
7. Report
Appendices
A. Report data
B. The accuracy of boiler tests
C. Radiation, convection and conduction losses for
     boilers of conventional design
Tables
1. Typical instruments and their accuracies
2. Symbols and units
3. Typical radiation, convection and conduction
     losses from water-tube and shell boilers
4. Typical radiation, convection and conduction
     losses from sectional hot water boilers
Figure
1. Outline of the procedure for calculating from
     the test measurements

A concise but complete test method, at minimum cost, for assessing the thermal performance of boilers, generally of output greater than 44 kW which are thermodynamically simple and fired by solid, liquid or gaseous fuels.

This Part of BS 845 describes a concise procedure for conducting thermal performance assessments, using the indirect (losses) procedure, to give results within a tolerance of ± 2 percentage points¹⁾ for boilers for steam, hot water or high temperature heat transfer fluids and for presenting the results in tabular form. Test results are based on either the gross or the net calorific value of the fuel.

This concise procedure provides a convenient means for assessing boilers which are thermodynamically simple, i.e. having a single major source of heat input and a simple circuit for water, steam or high temperature heat transfer fluid, and that do not condense moisture out of the flue gases.

NOTE The titles of the publications referred to in this standard are listed on the inside back cover.

Committee	RHE/10
DevelopmentNote	Supersedes 83/73794 DC and BS 845(1972) (10/2005) Reviewed and confirmed by BSI, December 2011. (11/2011)
DocumentType	Standard
Pages	24
PublisherName	British Standards Institution
Status	Current
Supersedes	BS 845:1972

17/30351608 DC : 0	BS 5410-2 - CODE OF PRACTICE FOR OIL FIRING - PART 2: INSTALLATIONS PROVIDING SPACE HEATING, HOT WATER AND STEAM SUPPLY SERVICES TO NON-DOMESTIC BUILDINGS
BS 5410-3:2016	Code of practice for oil firing Installations for furnaces, kilns, ovens, oil-fuelled generators and other industrial purposes
12/30170835 DC : 0	BS 5410-2 - CODE OF PRACTICE FOR OIL FIRING - PART 2: SPACE HEATING, HOT WATER AND STEAM SUPPLY SERVICES FOR COMMERCIAL AND INDUSTRIAL PREMISES
BS 7190:1989	Method for assessing thermal performance of low temperature hot water boilers using a test rig
BS PAS 67(2008) : 2008	LABORATORY TESTS TO DETERMINE THE HEATING AND ELECTRICAL PERFORMANCE OF HEAT-LED MICRO-COGENERATION PACKAGES PRIMARILY INTENDED FOR HEATING DWELLINGS
ISO 19867-1:2018	Clean cookstoves and clean cooking solutions — Harmonized laboratory test protocols — Part 1: Standard test sequence for emissions and performance, safety and durability
BS 779:1989	Specification for cast iron boilers for central heating and indirect hot water supply (rated output 44 kW and above)
BS 855:1990	Specification for welded steel boilers for central heating and indirect hot water supply (rated output 44 kW to 3 MW)
15/30319437 DC : 0	BS 5410-3 - CODE OF PRACTICE FOR OIL FIRING - PART 3: INSTALLATIONS FOR FURNACES, KILNS, OVENS, OIL-FUELLED STANDBY GENERATORS AND OTHER INDUSTRIAL PURPOSES
BS 5410-2:2013	Code of practice for oil firing Installations over 45 kW output capacity for space heating, hot water and steam supply services

BS 526:1961	Definitions of the calorific value of fuels
BS 1756-4:1977	Methods for sampling and analysis of flue gases Miscellaneous analyses
BS 3048:1958	Code for the continuous sampling and automatic analysis of flue gases: indicators and recorders
BS 1756-2:1971	Methods for the sampling and analysis of flue gases Analysis by the Orsat apparatus
BS 1016-14:1963	Methods for analysis and testing of coal and coke Analysis of coal ash and coke ash
BS 1756-1:1971	Methods for the sampling and analysis of flue gases Methods of sampling
BS 3812:1964	Recommendations for estimating the dryness of saturated steam
BS 1756-3:1971	Methods for the sampling and analysis of flue gases Analysis by the Haldane apparatus
BS 2869:1983	Specification for fuel oils for oil engines and burners for non-marine use

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BS 845-1:1987

Methods for assessing thermal performance of boilers for steam, hot water and high temperature heat transfer fluids Concise procedure

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