JC/T 793-2019 in English

VALID

Calculating methods of heat efficiency ，unit heat consumption and unit coal consumption of tunnel dryer annular kiln system

Issued on:2019-11-11
Implemented on:2020-04-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $160.00
$156.00

Standard No:	JC/T 793-2019
Document status:	VALID
Title in English:	Calculating methods of heat efficiency ，unit heat consumption and unit coal consumption of tunnel dryer annular kiln system
Title in Chinese:	隧道式干燥室-轮窑体系热效率、单位热耗、单位煤耗计算方法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2019-11-11
Implemented on:	2020-04-01
Superseding:	JC/T 793-2007 The methods for the calculation of the efficiency unit heat consumption and unit coal consumption of tunnel dryer annular kiln system
Professional Classification:	JC-Building Material
Related Keywords:	heat efficiency ，unit heat consumption sensible heat item appendix sensible heat qh heat balance diagram background unit coal consumption
Related Topics:	Thermal efficiency frequency unit Alum consumption calculation Alum consumption calculation method unit of frequency Alum consumption calculation drying room Sample rate unit frequency unit single point efficiency a unit Enthalpy unit coal consumption consume a Calculation method of bit rate Wear value calculation formula Gas benzene unit Liquid level calculation formula standard unit Liquid phase method recovery units Simple calculation method of coal particle size

本标准规定了隧道式干燥室-轮窑体系热效率、单位热耗、单位煤耗计算方法。
本标准适用于以粘土、页岩、粉煤灰、煤矸石、淤泥（江河湖淤泥）及其他固体废弃物为主要原料生产砖瓦产品的隧道式干燥室-轮窑体系。

Introduction

Analysis of the core content of the standard

Technical elements	2007 edition	2019 edition	Revision points
Scope of application	Unspecified solid waste raw materials	New solid waste such as sludge	Expand the applicability of environmentally friendly materials
Calculation formula	5 basic formulas	7 revised formulas	New hot air sensible heat item
Appendix parameters	No thermal balance parameters	12 new material parameters	Improved calculation accuracy

Detailed explanation of key technical changes

The thermal efficiency of the system is calculated using a dual-path formula:

Formula (1): η=(Q_d+Q_k-Q_o)/ΣQ_in×100%

Formula (4): A new item of hot air sensible heat Q_h is added, and the correction coefficient reaches ±1.8%

Implementation and application suggestions

It is recommended to use the online monitoring data of the tunnel drying chamber and the rotary kiln simultaneously

The calculation of coal consumption needs to refer to the 29 energy conversion coefficients in Appendix A.9

New projects should give priority to the revised heat balance diagram

Background of standard evolution

This standard has been revised four times in 1985, 1996, 2007 and 2019. This time it mainly responds to:

Dual carbon target requirements of the building materials industry

Trends in resource utilization of solid waste

Demand for improving energy efficiency of thermal equipment

More samples: DL/T 5154-2012 JJG 21-2008 DL/T 368-2010

Sample only — not a preview of JC/T 793-2019

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