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GB 30531-2014: Minimum allowable values of energy efficiency and energy efficiency grades for commercial gas cooking appliances
GB 30531-2014
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 27.010
F 01
Minimum allowable values of energy efficiency and
energy efficiency grades for commercial gas cooking
appliance
ISSUED ON: APRIL 28, 2014
IMPLEMENTED ON: JANUARY 01, 2015
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Terms and definitions ... 4 
4 Technical requirements ... 5 
5 Test and calculation methods ... 6 
6 Inspection rules ... 6 
Minimum allowable values of energy efficiency and
energy efficiency grades for commercial gas cooking
appliance
1 Scope
This Standard specifies energy efficiency grades, minimum allowable values of
energy efficiency, energy saving evaluation values, test methods and inspection
rules for commercial gas cooking appliance.
This Standard is applicable to Chinese gas cooking stove that uses gas as
energy, of which rated heat load of a single burner is not more than 60kW
(hereinafter referred to as cooking stove), gas cooking oven of which rated heat
load per burner is not more than 80kW and nominal diameter of oven is not less
than 600mm (hereinafter referred to as cooking oven) as well as gas steamer
of which rated thermal load is not more than 80kW and steam chamber steam
pressure is not more than 500Pa (gauge pressure) (hereinafter referred to as
steamer).
Gas referred in this Standard is gas specified in GB/T 13611.
2 Normative references
The following referenced documents are indispensable for the application of
this document. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any
amendments) applies.
GB/T 13611, Classification and basic characteristics of city gas
CJ/T 28, Chinese cooking gas appliances
CJ/T 187, Gas steaming oven
CJ/T 392, Commercial gas oven for cooking
3 Terms and definitions
For the purposes of this document, the terms and definitions defined in CJ/T 28,
CJ/T 187 and CJ/T 392 as well as the followings apply.
Evaluating values of energy conservation for commercial gas cooking
appliances are grade-2 values of energy efficiency in Table 1.
5 Test and calculation methods
5.1 Test conditions and test methods for cooking stove are in accordance with
CJ/T 28.
5.2 Test conditions and test methods for cooking oven are in accordance with
CJ/T 392.
5.3 Test conditions and test methods for steamer are in accordance with CJ/T
187.
5.4 Thermal efficiency value after heat load is weighted average for multi-fog
cooking stove and cooking oven is calculated according to formula (1):
Where,
Ii - actual measured converted thermal load of each fog, in kilowatts (kW);
ηi - thermal efficiency of each fog, in percentage (%).
6 Inspection rules
6.1 Exit-factory inspection
Minimum allowable values of energy efficiency shall be exit-factory inspection
item for cooking stove, cooking oven and steamer. Products of which efficiency
is inspected as failed to meet requirements in 4.3 are not allowed to exit factory.
6.2 Type inspection
6.2.1 In one of following cases for cooking stove, cooking oven and steamer,
type inspection shall be carried out:
a) test stereotypes identification of new product;
b) changes in product design, process or material used which may affect
product performances;
c) required by quality and technical supervision department.